Consulta: subjectFacets:"Fish"
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Integrating Traditional and Evolutionary Knowledge in Biodiversity Conservation: a Population Level Case Study
Provedor de dados: 7
Autores: Fraser, Dylan J; Department of Biology, Dalhousie University; dylan.fraser@dal.ca; Coon, Thomas; Cree Trapper's Association; tourism@nation.mistissini.qc.ca; Prince, Michael R.; Cree Nation of Mistissini, Quebec; tourism@nation.mistissini.qc.ca; Dion, Rene; Grand Council of the Crees of Quebec; rdion@gcc.ca; Bernatchez, Louis; Department of Biology, Laval University; louis.bernatchez@bio.ulaval.ca.
Despite their dual importance in the assessment of endangered/threatened species, there have been few attempts to integrate traditional ecological knowledge (TEK) and evolutionary biology knowledge (EBK) at the population level. We contrasted long-term aboriginal TEK with previously obtained EBK in the context of seasonal migratory habits and population biology of a salmonid fish, brook charr, (Salvelinus fontinalis) inhabiting a large, remote postglacial lake. Compilation of TEK spanning four decades involved analytical workshops, semidirective interviews, and collaborative fieldwork with local aboriginal informants and fishing guides. We found that TEK complemented EBK of brook charr by providing concordant and additional information about (1) population...
Tipo: Peer-Reviewed Reports
Palavras-chave: Biodiversity; Conservation; Cree; Evolutionary biology; Fish; James Bay; Local ecological knowledge; Migration; Northern research; Traditional ecological knowledge; Traditional knowledge.
Ano: 2006

Searching Explanations of Nature in the Mirror World of Math
Provedor de dados: 7
Autores: Scheffer, Marten; Wageningen Agricultural University; Marten.Scheffer@wur.nl.
Despite the huge scientific progress of the last century, the dynamics of complex systems such as the atmosphere, human societies, and ecosystems remain difficult to understand and predict. Nonetheless, our ability to carve the future depends largely on our insight into the functioning of such complex systems. Complex systems are the focus of considerable mathematical theory. Rather than referring to any particular part of the world, such theory addresses what seems to be another world: a world of strange attractors, catastrophe folds, torus destruction, and homoclinic bifurcations. So disparate is the language and notation in this discipline that it is hard to imagine that it has any thing to do with reality as we know it. Indeed, it deals with a kind of...
Tipo: Peer-Reviewed Reports
Palavras-chave: Bifurcation; Catastrophe; Chaos; Cycle; Daphnia; Fish; Macrophyte; Model; Multiple stable states; Plankton; Predation; Trophic cascade.
Ano: 1999

Structure and dynamic of food webs in Andean North Patagonian freshwater systems: organic matter, light and nutrient relationships
Provedor de dados: 67
Autores: Modenutti,Beatriz; Albariño,Ricardo; Bastidas Navarro,Marcela; Díaz Villanueva,Verónica; Souza,María Sol; Trochine,Carolina; Laspoumaderes,Cecilia; Cuassolo,Florencia; Mariluán,Gustavo; Buria,Leonardo; Balseiro,Esteban.
North Andean Patagonian aquatic systems include a number of deep and shallow oligotrophic lakes with a profuse hydrographic net. In this contribution we present a review of the researches carried out during the last decade in the food webs of North Patagonian water bodies. Food webs in these systems were studied based on field surveys, combining with field and laboratory experiments. Deep and shallow lakes were analyzed in relation to light, organic matter, and nutrient constraints as limiting interacting factors. In addition, we have also extended our knowledge on the structure and dynamics of stream food webs by analyzing different aspects of biotic interactions occurring both through the autotrophic and heterotrophic pathways. Since Andean lakes were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterioplankton; Phytoplankton; Zooplankton; Fish; Insects; Lakes and rivers.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2010000200003

Responses of plankton and fish from temperate zones to UVR and temperature in a context of global change
Provedor de dados: 67
Autores: Gonçalves,Rodrigo J; Souza,María Sol; Aigo,Juana; Modenutti,Beatriz; Balseiro,Esteban; Villafañe,Virginia E; Cussac,Víctor; Helbling,E Walter.
In the last decades, both temperature and UVB (280-315 nm) radiation on the surface of the Earth increased at growing rates as a result of human activities. Many studies had evaluated the effects of temperature on aquatic ecosystems, but now the field broadens as the combination and variations of temperature and radiation gains especial importance. In this work we attempt to revisit some of our knowledge about the effects of UVR and temperature on marine and freshwater plankton and fish from temperate regions (defined here as latitudes between 30-60º), especially from the Patagonia area, due to the special characteristics found in these sites. UVR affects (often negatively) almost all processes, from carbon fixation to behavior; and certainly all trophic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climate change; Bacterioplankton; Phytoplankton; Zooplankton; Fish; Oxidative stress; Upper mixed layer.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2010000200005

THE CONSERVATION STATE OF CHARACIDAE FISH (PISCES: CHARACIFORMES) IN AN AREA OF THE PLATA BASIN, ARGENTINA
Provedor de dados: 72
Autores: Zayas,Marcelo A; Cordiviola,Elly.
The fish conservation was quantified by means of the index SUMIN, composed by the summation of 12 outstanding variables for the species survival and/or conservation. An arranged list of 53 species was obtained according to a gradient of conservation necessity. The species determined as vulnerable of maximum priority: Salminus brasiliensis, Pygocentrus nattereri, Serrasalmus marginatus and S. rhombeus; species vulnerable of special attention: Brycon orbygnianus, Triportheus paranensis, Serrasalmus serrulatus, S. spilopleura, Piaractus mesopotamicus, Hemigrammus mattei, Cynopotamus argenteus, Astyanax correntinus, Gymnocorymbus ternetzi, Hyphessobrycon anisitsi and Mylossoma orbignyanus. The remaining species, were qualified as not threatened: Poptella...
Tipo: Journal article
Palavras-chave: Conservation; Fish; Characidae; South America.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382007000200006

RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
Provedor de dados: 74
Autores: Hatanaka,Terumi; Galetti Jr.,Pedro Manoel.
Many factors have contributed to the destruction of fish habitats. Hydroelectric dams, water pollution and other environmental changes have resulted in the eradication of natural stocks. The aim of this study was to detect the genetic variation in Prochilodus marggravii from three collection sites in the area of influence of the Três Marias dam (MG) on the São Francisco river (Brazil), using the RAPD technique. The results obtained revealed that the fish in the downstream region nearest the dam have a higher similarity coefficient than those from the other sampling sites that may be related to differences in environmental characteristics in these regions. Additionaly, significant differences in the band frequencies were observed from one collection site to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prochilodus; RAPD; Genetic structure; Conservation genetic; Fish.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100004

Mutagenic effects of tributyltin and inorganic lead (Pb II) on the fish H. malabaricus as evaluated using the comet assay and the piscine micronucleus and chromosome aberration tests
Provedor de dados: 74
Autores: Ferraro,Marcos Vinícius M.; Fenocchio,Alberto Sérgio; Mantovani,Mario Sérgio; Ribeiro,Ciro de Oliveira; Cestari,Marta Margarete.
Genotoxicity studies on toxic metals and their organic compounds are very important, especially so in the investigation of the effects of these compounds on the aquatic environments where they tend to accumulate. The use of endemic aquatic organisms as biological sentinels has proved useful to environmental monitoring. We assessed the mutagenic potential of tributyltin (TBT) and inorganic lead (PbII) using samples of the fish Hoplias malabaricus (commonly called traíra) using the comet assay and the piscine micronucleus and chromosome aberration tests. Eighteen H. malabaricus were acclimatized in three individual aquariums, each containing six fish, six fish being exposed to 0.3 mg/g of body weight (bw) of TBT, six to 21 mg/g bw of PbII and six being used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comet assay; Micronucleus; Chromosome aberrations; Tributyltin; Lead; Fish.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000100017

Cytogenetic analysis of three sea catfish species (Teleostei, Siluriformes, Ariidae) with the first report of Ag-NOR in this fish family
Provedor de dados: 74
Autores: Nirchio,Mauro; Martinez,Emanuel Ricardo Monteiro; Foresti,Fausto; Oliveira,Claudio.
Despite their ecological and economical importance, fishes of the family Ariidae are still genetically and cytogenetically poorly studied. Among the 133 known species of ariids, only eight have been karyotyped. Cytogenetic analyses performed on Genidens barbus and Sciades herzbergii revealed that both species have 2n = 56 chromosomes and Cathorops aff. mapale has 2n = 52 chromosomes: Genidens barbus has 10 Metacentrics (M), 14 Submetacentrics (SM), 26 Subtelocentrics (ST), and 6 Acrocentrics (A), Sciades herzbergii has 14M, 20SM, 18ST and 4A, whereas Cathorops aff. mapale has 14M, 20SM, and 18ST. The nucleolus organizer regions (NORs) were found in a single chromosome pair on the short arm of a large-sized ST pair in Genidens barbus and on the short arm of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytogenetics; Ag-NORs; Chromosome evolution; Chromosome rearrangements; Fish.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200011

Description of a ZZ/ZW sex chromosome system in Thoracocharax cf. stellatus (Teleostei, Characiformes, Gasteropelecidae)
Provedor de dados: 74
Autores: Carvalho,Margarida Lima; Oliveira,Claudio; Foresti,Fausto.
The family Gasteropelecidae is composed of three genera and eight species. This study shows that Thoracocharax cf. stellatus has 2n = 52 chromosomes for both sexes. The five males studied showed 8 metacentric, 16 submetacentric, 4 subtelocentric, and 24 acrocentric chromosomes; the seven females showed only one submetacentric chromosome, belonging to pair 11, and one extra acrocentric chromosome, smaller than all the other chromosomes, characterizing the presence of a ZZ/ZW sex chromosome system in this species. Nucleolus organizing regions (NORs) were detected on the short arms of the subtelocentric chromosome pair 13. Constitutive heterochromatin was identified at pericentromeric and terminal positions in almost all chromosomes. The W chromosome was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sex chromosomes; ZW; DNA content; Fish; Evolution.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000300008

Cytogenetic characterization of the strongly electric Amazonian eel, Electrophorus electricus (Teleostei, Gymnotiformes), from the Brazilian rivers Amazon and Araguaia
Provedor de dados: 74
Autores: Fonteles,Soraia B.A.; Lopes,Carlos E.; Akama,Alberto; Fernandes,Flora M.C.; Porto-Foresti,Fábio; Senhorini,José A.; Daniel-Silva,Maria de Fátima Z.; Foresti,Fausto; Almeida-Toledo,Lurdes Foresti de.
A karyotype analysis of the electric eel, Electrophorus electricus (Teleostei, Gymnotiformes), a strongly electric fish from northern South America, is presented. Two female specimens were analyzed, one from the Amazon River and one from the Araguaia River. The specimens had a chromosomal number of 2n = 52 (42M-SM + 10A). C-bands were present in a centromeric and pericentromeric position on part of the chromosomes; some interstitial C-bands were also present. Heteromorphic nucleolus organizer regions (NORs) were detected in two chromosome pairs of the specimen from the Amazon River. The chromosome number and karyotype characteristics are similar to those of other Gymnotidae species. The genera Electrophorus and Gymnotus are positioned as the basal lineages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosome; Fish; Gymnotidae; Electric eel.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200010

Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
Provedor de dados: 74
Autores: Abreu,Marcia Matos de; Pereira,Luiz Henrique Garcia; Vila,Vilma Barretto; Foresti,Fausto; Oliveira,Claudio.
Catfishes of the genus Pseudoplatystoma are very important species due to both their high commercial value and their ecological role as voracious predators. They undertake lengthy migratory movements during their life-cycle, this including reproductive migration which occurs from October to December in the rainy season. In the present study, seven microsatellite loci were analyzed to access genetic variability in two samples of P. reticulatum from the Upper Paraguay Basin. The loci were highly polymorphic (mean = 7.28). According to all analysis, the two samples of P. reticulatum revealed pronounced genetic differentiation. Fst value was 0.2290, Rst value 0.1067 and AMOVA 22.90% (Fst) and 10.67% (Rst), all being highly significant (p &lt; 0.001). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Population genetics; Microsatellite; Homing; Population structure.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000400032

5S rDNA characterization in twelve Sciaenidae fish species (Teleostei, Perciformes): depicting gene diversity and molecular markers
Provedor de dados: 74
Autores: Alves-Costa,Fernanda A.; Martins,Cesar; Matos,Fernanda Del Campos de; Foresti,Fausto; Oliveira,Claudio; Wasko,Adriane P.
In order to extend the genetic data on the Sciaenidae fish family, the present study had the purpose to characterize PCR-generated 5S rDNA repeats of twelve species of this group through PAGE (Polyacrylamide Gel Electrophoresis) analysis. The results showed the occurrence of at least two different 5S rDNA size classes in all the species. Moreover, 5S rDNA repeats of one of the studied species - Isopisthus parvipinnis - were cloned and subjected to nucleotide sequencing and Southern blot membrane hybridization analyses, which permitted to confirm the existence of two major 5S rDNA classes. Phylogenetic analysis based on the nucleotide sequences of different 5S rDNA repeats of I. parvipinnis lead to their separation into two major clusters. These results may...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sciaenidae; Fish; Isopisthus parvipinnis; 5S rDNA; Molecular markers.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200025

Population structure, fluctuating asymmetry and genetic variability in an endemic and highly isolated Astyanax fish population (Characidae)
Provedor de dados: 74
Autores: Gross,Maria Claudia; Schneider,Carlos Henrique; Matiello,Mara Cristina de Almeida; Leite,Maysa de Lima; Bertollo,Luiz Antonio Carlos; Artoni,Roberto Ferreira.
Morphological and chromosomal markers were used to infer the structure and genetic variability of a population of fish of the genus Astyanax, geographically isolated at sinkhole 2 of Vila Velha State Park, Paraná, Brazil. Two morphotypes types were observed, the standard phenotype I and phenotype II which showed an anatomical alteration probably due to an inbreeding process. Fluctuating asymmetry (FA) analysis of different characters showed low levels of morphological variation among the population from sinkhole 2 and in another population from the Tibagi river (Paraná, Brazil). The Astyanax karyotype was characterized in terms of chromosomal morphology, constitutive heterochromatin and nucleolar organizer regions. Males and females presented similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Astyanax sp.; Fluctuating asymmetry; Karyotype structure; Triploidy; Genetic conservation.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000400011

Cytogenetic divergence in two sympatric fish species of the genus Astyanax Baird and Girard, 1854 (Characiformes, Characidae) from northeastern Brazil
Provedor de dados: 74
Autores: Medrado,Aline Souza; Ribeiro,Mavione Souza; Affonso,Paulo Roberto Antunes de Mello; Carneiro,Paulo Luíz Souza; Costa,Marco Antônio.
The fish genus Astyanax is widespread throughout the Neotropical region and is one of the most species-rich genera of the Characiformes. Cytogenetic studies of Astyanax have revealed marked intra-and interspecific diversity, with the identification of various species complexes. In this report, we describe the karyotypic structure of two sympatric species of Astyanax (Astyanax sp. and Astyanax aff. fasciatus) from the Middle Contas River basin in the northeastern Brazilian state of Bahia. Both species had 2n = 48 but differed in their karyotypic formulae. Small heterochromatic blocks and multiple nucleolar organizer regions (NORs) were identified in both species. Terminal CMA3+/DAPI-signals were observed in Astyanax sp. and A. aff. fasciatus, mostly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ag-NOR; Cytotaxonomy; Fish; Fluorochromes; South America.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500014

Nuclear DNA content determination in Characiformes fish (Teleostei, Ostariophysi) from the Neotropical region
Provedor de dados: 74
Autores: Carvalho,Margarida Lima; Oliveira,Claudio; Navarrete,Maria Clara; Froehlich,Otávio; Foresti,Fausto.
In the present study, nuclear DNA content was analyzed in 53 species of Characiformes fish from the Neotropical region. Diploid number ranged from 2n = 48 in Astyanax fasciatus, Gymnocorymbus ternetzi and Hyphessobrycon griemi to 2n = 102 in Potamorhina squamoralevis, with a modal number of 54 chromosomes. Nuclear DNA content ranged from 1.70 ± 0.04 pg of DNA per diploid nucleus in Acestrorhynchus pantaneiro to 3.94 ± 0.09 pg in Tetragonopterus chalceus. A general analysis showed a mean value of 2.9 pg of DNA per diploid nucleus. Very similar DNA content values were observed in the species of the family Cynodontidae which showed a variation of 3% between the two genera studied. Small variations were observed between populations of Gymnocorymbus ternetzi,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nuclear DNA; DNA content; Chromosome; Fish; Evolution.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000100010

Genotoxicity evaluation of domestic sewage in a municipal wastewater treatment plant
Provedor de dados: 74
Autores: Grisolia,Cesar Koppe; Oliveira,Adriano Barros Barata de; Bonfim,Helder; Klautau-Guimarães,Maria de Nazaré.
An evaluation of the genotoxicity of domestic sewage was carried out in a municipal wastewater treatment plant. The study was carried out using Allium cepa root tip cells through cytological parameters such as aberrant cells in anaphase-telophase and the mitotic index, and the fish species Oreochromis niloticus and Tilapia rendalli, through the index of micronuclei in peripheral erythrocytes. In the Allium test, each of the four stages of the wasterwater treatment routine was analyzed, i.e., crude sewage, primary effluent, secondary effluent, and tertiary effluent. O. niloticus and T. rendalli specimens were maintained in an aquarium continuously receiving the final effluent, in an open system, before being discharged into Lake Paranoá. For micronuclei...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Biomonitoring; Domestic sewage; Fish; Micronuclei; Mutagenicity.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000200026

DNA damage in the kidney tissue cells of the fish Rhamdia quelen after trophic contamination with aluminum sulfate
Provedor de dados: 74
Autores: Klingelfus,Tatiane; Costa,Paula Moiana da; Scherer,Marcos; Cestari,Marta Margarete.
Abstract Even though aluminum is the third most common element present in the earth's crust, information regarding its toxicity remains scarce. It is known that in certain cases, aluminum is neurotoxic, but its effect in other tissues is unknown. The aim of this work was to analyze the genotoxic potential of aluminum sulfate in kidney tissue of the fish Rhamdia quelen after trophic contamination for 60 days. Sixty four fish were subdivided into the following groups: negative control, 5 mg, 50 mg and 500 mg of aluminum sulfate per kg of fish. Samples of the posterior kidney were taken and prepared to obtain mitotic metaphase, as well as the comet assay. The three types of chromosomal abnormalities (CA) found were categorized as chromatid breaks,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Metal contamination; Chromosomal abnormalities; Comet assay.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000400499

Analysis by RAPD of the genetic structure of Astyanax altiparanae (Pisces, Characiformes) in reservoirs on the Paranapanema River, Brazil
Provedor de dados: 74
Autores: Leuzzi,Maria Sueli Papa; Almeida,Fernanda Simões de; Orsi,Mário Luís; Sodré,Leda Maria Koelblinger.
In this study, the RAPD technique was used to analyze the genetic structure of populations of the fish Astyanax altiparanae (Characidae, Tetragonopterinae) living in the lower, middle and upper Paranapanema River, Brazil. The aim was to assess this structure regarding fish handling and conservation programs. The genetic variability (P) was found to be 42.64%, 75% and 75% in the low, middle and upper reaches, respectively. The dendrogram of genetic similarity, obtained by comparative analysis of the sets of samples from the three sites, showed the formation of three clusters. All of the genetic parameters used indicate that the population in the lower Paranapanema is genetically different from those in the middle and upper sections. The theta P test shows...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Astyanax altiparanae; RAPD; Genetic structure; Genetic conservation; Fish.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300009

Cytogenetic analysis of three catfish species of the family Pseudopimelodidae (Teleostei, Siluriformes)
Provedor de dados: 74
Autores: Martinez,Emanuel Ricardo Monteiro; Nirchio,Mauro; Granado,Angel; Foresti,Fausto; Oliveira,Claudio.
Cytogenetic analyses performed in Cephalosilurus apurensis, Microglanis aff. cottoides and Pseudopimelodus bufonius revealed that the three species have 2n = 54 chromosomes: C. apurensis presented six metacentric (M), 28 submetacentric (SM), 14 subtelolocentric (ST), and six acrocentric (A) chromosomes, while M. aff. cottoides showed 10M, 32SM, 10ST and 2A, and P. bufonius had 12M, 30SM and 12ST. The nucleolus organizer regions (NORs) were present on the short arm of a middle-sized ST pair, identified as pair 19, in C. apurensis NORs were found on the short arm of a middle-sized ST (pair 23) and on the long arm of a middle-sized ST (pair 22) in M. aff. cotttoides and on the short arm of three middle-sized ST pairs, identified as pairs 9, 10 and 11, in P....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Karyotype; Chromosomes; C-banding; Ag-NOR; Fish.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000400015

Nuclear DNA content in 20 species of Siluriformes (Teleostei: Ostariophysi) from the Neotropical region
Provedor de dados: 74
Autores: Fenerich,Paulo César; Foresti,Fausto; Oliveira,Claudio.
In the present study, 20 species of Siluriformes fish were analyzed in order to determine their nuclear DNA content and compare these data with their diploid number. In addition, the extension and importance of the changes that occurred during the process of diversification in the group of Neotropical freshwater catfish were investigated. The only species studied of the family Doradidae, Rhinodoras d'orbignyi (2n = 58), presented 3.46 ± 0.13 pg of DNA. Among the species of the family Heptapteridae, the values of nuclear DNA content and the diploid numbers ranged from 1.13 ± 0.09 pg of DNA in Pimelodella sp. (2n = 46) to 2.38 ± 0.07 pg of DNA in Imparfinis mirini (2n = 58). The family Loricariidae showed the widest variation in diploid number and nuclear...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nuclear DNA; DNA content; Chromosome; Fish; Evolution.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300008

The complete mitochondrial genome of the threatened Neotropical catfish Lophiosilurus alexandri (Silurifomes: Pseudopimelodidae) and phylogenomic analysis indicate monophyly of Pimelodoidea
Provedor de dados: 74
Autores: Carvalho,Daniel Cardoso; Perini,Violeta da Rocha; Bastos,Alex Schomaker; Costa,Igor Rodrigues da; Luz,Ronald Kennedy; Furtado,Carolina; Prosdocimi,Francisco.
Abstract Lophiosilurus alexandri is an endemic catfish from the São Francisco River Basin (Brazil) popularly known as pacamã, which has economic potential for aquaculture farming. The mitochondrial genome was sequenced for the threatened Neotropical catfish L. alexandri. Assembly into scaffolds using MIRA and MITObim software produced the whole, circularized mitochondrial genome, which comprises 16,445 bp and presents the typical gene arrangement of Teleostei mitochondria. A phylogenomic analysis was performed after the concatenation of all proteins obtained from whole mitogenomes of 20 Siluriformes and two outgroups. The results confirmed the monophyly of nine families of catfishes and also clustered L. alexandri as a sister group to the family...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Mitogenome; Fish; Next-generation-sequencing; Illumina; Pseudopimelodidae.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000400674

Identification of Astyanax altiparanae (Teleostei, Characidae) in the Iguaçu River, Brazil, based on mitochondrial DNA and RAPD markers
Provedor de dados: 74
Autores: Prioli,Sônia M.A.P.; Prioli,Alberto J.; Júlio Jr.,Horácio F.; Pavanelli,Carla S.; Oliveira,Alessandra V. de; Carrer,Helaine; Carraro,Dirce M.; Prioli,Laudenir M.
Astyanax fishes are among the most important food-web components of South America rivers. In the Iguaçu River basin, the Astyanax genus is represented mainly by endemic species. For millions of years, that hydrographic basin has been geographically isolated from the Paraná River basin by the Iguaçu Falls. Recently, a species from the Upper Paraná River basin identified as Astyanax bimaculatus was revised and described as a new species named Astyanax altiparanae Garutti &amp;amp; Britski, 2000. Fauna endemism and geographic isolation triggered interest in investigations to evaluate the identification and genetic relatedness among two A. altiparanae populations from the Upper Paraná River basin and the population identified as A. bimaculatus in the Iguaçu...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Astyanax; Fish; D-loop; Control region; Mitochondrial DNA; RAPD.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000400011

Karyotype description of five species of Trichomycterus (Teleostei: Siluriformes: Trichomycteridae)
Provedor de dados: 74
Autores: Sato,Luciana Ramos; Oliveira,Claudio; Foresti,Fausto.
Trichomycteridae is a family of small catfish which are widely distributed throughout Southern Central America and South America. The present study showed that the cis-Andean species Trichomycterus florensis, Trichomycterus sp. aff. Trichomycterus itatiyae, Trichomycterus reinhardti, Trichomycterus davisi and Trichomycterus auroguttatus had 2n = 54 chromosomes (42 metacentric, 10 submetacentric and 2 subtelocentric), with T. reinhardti, T. auroguttatus and T. sp. aff. T. itatiyae exhibiting only one chromosome pair with silver-stained nucleolus organizer regions (NORs). The cytogenetic data suggest the existence of at least two groups of species in the cis-Andean representatives of the genus Trichomycterus. In the first group the first metacentric pair is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosome evolution; NOR banding; Fish.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000100008

Микробиологические проблемы культивирования морских рыб на ранних стадиях развития (на примере камбалообразных) и пути их решения
Provedor de dados: 13
Autores: Ханайченко, А. Н.
Представлен обзор современных микробиологических исследований в области культивирования морских рыб на примере камбалообразных. Рассмотрена последовательность развития внутренней микрофлоры вы­ращиваемых рыб на ранних стадиях их развития. Проанализировано происхождение микрофлоры рыб как одной из составляющих микрофлоры искусственной среды выращивания. Рассмотрены позитивное и нега­тивное влияние антибиотиков на микрофлору рыб, альтернативные средства лечения и профилактики бакте­риальных заболеваний. Обсуждаются возможные воздействия используемых способов на состояние микро­флоры рыб и здоровье людей. Проанализировано состояние современных экологически безопасных путей решения описанных микробиологических проблем.
Tipo: Journal Contribution
Palavras-chave: Марикультура; Рыбы; Микрофлора; Патоген; Профилактика; Mariculture; Fish; Microflora; Pathogen; Prophylaxis Prophylaxis Pathogens Pathogens http://aims.fao.org/aos/agrovoc/c_5630.
Ano: 2005
URL: http://repository.ibss.org.ua/dspace/handle/99011/203

Distribution, feeding and ecomorphology of four species of Auchenipteridae (Teleostei: Siluriformes) in Eastern Amazonia, Brazil
Provedor de dados: 76
Autores: Freitas,Tiago M. S.; Montag,Luciano F. A.; Barthem,Ronaldo B.
ABSTRACT Fish exhibit morphological, physiological and behavioral specializations which enable them to display different ways to explore the environments and resources. Thus, the aim of this study was to verify how four Auchenipteridae species differ in the distribution, feeding habits and morphological traits: Auchenipterichthys longimanus (Günther, 1864), Auchenipterus nuchalis (Spix &amp; Agassiz, 1829), Tatia intermedia (Steindachner, 1877) and Trachelyopterus galeatus (Linnaeus, 1766). This study was conducted in rivers and bays of the Anapú Basin, Pará State (Brazil), where these species are abundant. Specimens were collected using gillnets, and after caught the stomachs were removed for the contents analyzes. Eighteen morphometric measurements from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Morphology; Diet; Adaptation.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100208

Prey consumed by Guiana dolphin Sotalia guianensis (Cetacea, Delphinidae) and franciscana dolphin Pontoporia blainvillei (Cetacea, Pontoporiidae) in an estuarine environment in southern Brazil
Provedor de dados: 76
Autores: Cremer,Marta J.; Pinheiro,Pedro C.; Simões-Lopes,Paulo C.
The present study provides information about the diet of sympatric populations of small cetaceans in the Babitonga Bay estuary. This is the first study on the diet of these species in direct sympatry. The stomach contents of seven Guiana dolphins Sotalia guianensis and eight franciscanas Pontoporia blainvillei were analyzed. The prey of both cetaceans was mostly teleost fishes, followed by cephalopods. We identified 13 teleost fishes as part of the diet of the franciscanas, and 20 as part of the diet of Guiana dolphins. Lolliguncula brevis was the only cephalopod recorded, and was the most important prey for both cetaceans. Stellifer rastrifer and Gobionellus oceanicus were also important for franciscana, so as Mugil curema and Micropogonias furnieri were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Babitonga Bay; Cetacean; Fish; Cephalopod.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000200003

Structure of the ichthyofauna of adventitious streams in the South Pantanal
Provedor de dados: 76
Autores: Uieda,Virginia S.; Fujihara,César Y.
ABSTRACT: The ichthyofauna of the Taquari River, one of the main tributaries of the South Pantanal, has been studied since the 1970s; however, there is a gap on the studies about the ichthyofauna present on the small adventitious streams of this highly dendritic system. These streams are small tributaries that flow directly into large rivers (mainstem), at least three orders greater in magnitude. The aim of this study was to analyze the structure of the ichthyofauna of five adventitious streams of the Upper Taquari River, South Pantanal, evaluating its temporal variation (dry and wet season) and the relation to the habitat characteristics and the conservation of the streams. Thirty-seven species were collected, from which 14 are exclusive to the Paraguay...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lotic habitat; Diversity; Fish; Paraguay River basin; Upper Taquari River.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100219

Abundancia y distribución de las especies ícticas (Osteichthyes) del río San Francisco-Cosquín, Córdoba, Argentina
Provedor de dados: 76
Autores: Hued,Andrea Cecilia; Bistoni,María de los Ángeles.
It was made the characterization of the San Francisco-Cosquín Mountain River fish community, Córdoba, Argentina. Samples of fish were taken from selected sites from November 1998 to November 1999. Eleven species were recorded, eight of which are first reports for this river. Relative abundance for each species, species richness, diversity and dominance were estimated. Bryconamericus iheringi (Boulenger, 1887) y Jenynsia multidentata (Jenyns, 1842) were the most abundant.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Freshwater; Community attributes.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200010

O mercado da tilápia - 1° trimestre de 2016.
Provedor de dados: 14
Autores: FLORES, R. M. V.; BARROSO, R. M.; LÓPEZ RÍOS, J.; MUNOZ, A. E. P.; ROCHA, H. S.
Comportamento do mercado de varejo nacional. Evolução dos preços. O setor externo.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Tilápia; Peixe de água doce; Comércio exterior; Mercado nacional; Fish; Market prices; Prices; Tilapia (common name); Trade policy.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1043658

Sistema de Controle da Pesca de Mato Grosso do Sul SCPESCA/MS - 6 - 1999.
Provedor de dados: 14
Autores: CATELLA, A. C.; ALBUQUERQUE, F. F. de; CAMPOS, F. L. de R.
Neste estudo encontram-se informações sobre a pesca profissional e esportiva, oficialmente vistoriadas pela Polícia Militar Ambiental/MS na Bacia do Alto Paraguai, coletadas e analisadas pelo Sistema de Controle da Pesca de Mato Grosso do Sul (SCPESCA/MS), no ano de 1999. Foram capturados 1.537 t de pescado sendo 20,8% pela pesca profissional e 79,2% pela esportiva. As espécies mais capturadas foram: pacu Piaractus mesopotamicus (361 t, 25,6%) e pintado Pseudoplatystoma corruscans (206 t, 14,9%), sobretudo nos rios Paraguai e Miranda. Um total de 58.966 pescadores esportivos visitaram o Estado, oriundos principalmente de São Paulo (66,1%). Em mediana, os pescadores profissionais capturaram entre 54 e 90 kg/pescador.viagem e os pescadores esportivos entre...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Monitoramento; Avaliação de estoque pesqueiro; Bacia do Rio Paraguai; Mato Grosso do Sul; Brasil; Fish stock assessment; Paraguay river basin.; Pesca.; Peixe; Brazil; Pantanal; Fish; Fisheries.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810754

O mercado da tilápia - 3º trimestre de 2015.
Provedor de dados: 14
Autores: BARROSO, R. M.; MUNOZ, A. E. P.; FLORES, R. M. V.; LÓPEZ RÍOS, J.
Comportamento do varejo - mercado nacional. Evolução dos preços. no primeiro semestre de 2015. Categorias comercializadas. O setor externo. O potencial da tilápia avança sobre o mercado dos peixes marinhos. A tilápia é um peixe caro? O preço da praticidade. Peixarias x Supermercados. O setor externo.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Peixe de água doce; Tilápia; Comércio exterior; Mercado nacional; Tilapia (common name); Fish; Market prices; Prices; Trade policy.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1027132

Influencia das atividades antropicas sobre os peixes da bacia hidrografica do rio Miranda, periodo de 1985 a 1987.
Provedor de dados: 14
Autores: RESENDE, E. K. de.
Face ao grande impacto causado pela mortandade macica de peixes ocorrida no rio Miranda em outubro de 1985, observada na regiao do Passo do Lontra, foi desenvolvido este trabalho, a partir de informacoes secundarias, com o objetivo de avaliar as possiveis fontes de contaminacao/degradacao existentes na bacia. As possiveis fontes provenientes do uso de defensivos agricolas, do uso da terra para as diferentes atividades agropastoris bem como as atividades industriais e o Impacto dos aglomerados urbanos na regiao foram avaliados. E parte de um projeto maior onde se efetua a caracterizacao limnologica da bacia e os estudos bio-ecologicos das principais especies de peixes de importancia comercial.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Mortandade; Ecofauna; Contamination.; Agrotóxico; Impacto Ambiental; Peixe.; Pantanal; Agrochemicals; Degradation; Fish; Mortality.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787793

Óleo de coco virgem como nutracêutico na ração do tambaqui.
Provedor de dados: 14
Autores: COUTO, M. V. S. do; SANTOS, T. B. R.; ABE, H. A.; PAIXAO, P. E. G.; MENESES, J. O.; DIAS, J. A. R.; SOUSA, N. da C.; CUNHA, F. dos S.; SANTOS, C. C. M.; NOGUEIRA FILHO, R. M.; FUJIMOTO, R. Y.
bitstream/item/228986/1/COT-244-21-Embrapa-Tabuleiros-Costeiros-1.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Óleo Vegetal; Coco; Alimentação; Alimento Animal; Ração; Piscicultura; Tambaqui; Vegetable oil; Coconuts; Fish; Food animals.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137623

Descrição das larvas das principais espécies de peixes utilizadas pela pesca, no Pantanal.
Provedor de dados: 14
Autores: NASCIMENTO, F. L.; LIMA, C. A. R. M. A.
Elaborou-se uma chave ilustrada, baseando-se na comparacao de caracteristicas morfologicas e morfometricas dos estadios iniciais, quando as larvas ainda sao encontradas no plancton, a deriva no rio. A chave possui a descricao das cinco principais especies utilizadas economicamente no Pantanal: pacu (Piaractus mesopotamicus), curimbata (Prochilodus lineatus), dourado (Salminus maxillosus), piavucu (Leporinus macrocephalus). As especies pintado (Pseudoplatystoma corruscans) e cachara (Pseudoplatystoma fasciatum), por nao apresentarem nenhuma diferenca nas caracteristicas utilizadas nas descricoes, foram incluidas em Pseudoplatystoma sp. As descricoes foram feitas a partir de amostras obtidas em condicoes artificiais.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Larva de peixe; Descricao; Pintado; Cachara; Curimbata; Morfologia; Description; Morphology.; Dourado; Pacu.; Pantanal; Fish; Larvae.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/804405

Aspectos bio-ecológicos dos peixes associados à macrófitas aquáticas na Baía Tuiuiú, Rio Paraguai, Pantanal Sul.
Provedor de dados: 14
Autores: RESENDE, E. K. de; FERREIRA, L. K. S. G.; MÔNACO, I. de A.; CRUZ, L. W. da S.
O estudo foi realizado para se entender as relações entre as macrófitas aquáticas e os peixes que ocorrem associados a elas. A área de estudo foi a Baía Tuiuiú, meandro abandonado do Rio Paraguai, próximo à cidade de Corumbá, MS. Para tanto, de outubro de 2005 a dezembro de 2007, foram realizadas amostragens bimestrais de peixes, macrófitas aquáticas e organismos associados a elas, bem como parâmetros de qualidade de água. Foram encontradas 85 espécies de peixes, cujas estratégias de vida foram analisadas em termos de alimentação, reprodução e abrigo contra predadores ou mesmo para local de reprodução. As dietas alimentares dos peixes variaram de herbívoras, insetívoras, detritívoras, zooplanctófagas e ictiófagas a dietas mistas de insetos, zooplâncton e...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Peixe; Habito alimentar; Nutrição animal; Dieta; Ecologia; Qualidade da Água.; Fish; Fish nutrition.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1055733

Aplicação da biologia molecular em programas de conservação de recursos pesqueiros.
Provedor de dados: 14
Autores: MARQUES, D. K. S.
Estudos genéticos em peixes; Marcadores moleculares; Eletroforese de proteínas; Seqüências de DNA como marcadores; Polimorfismo de comprimento de fragmentos de restrição (Restriction Fragment Length Polymorphism - RFLP); Polimorfismo de DNA amplificado ao acaso (Randomly Aplified polymorphic DNA - RAPD); DNA com seqüências repetitivas: micro-satélites e mini-satélites; DNA mitocondrial.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Marcadores moleculares; Recursos pesqueiros; Fisheries resources; Conservation.; Biologia Molecular; Conservação; Peixe; População.; Fish; Molecular biology; Population.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810724

Teores de arsênio, cádmio e chumbo em peixes marinhos comercializados em Macieó, AL, Aracaju, SE, Salvador, BA, Brasil.
Provedor de dados: 14
Autores: SILVA, C. A. da; SANTOS, S. de O.; GARCIA, C. A. B.; EUFRASIO, C. A. de S.; VIANA, R. D.
bitstream/item/160946/1/BP-118.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Peixe; Contaminação; Comercialização; Fish.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1062391

Reprodução, larva e alevinagem do pirarucu (Arapaima gigas).
Provedor de dados: 14
Autores: IMBIRIBA, E. P.
bitstream/item/38402/1/RecBas-26.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Alevinagem; Brasil; Raising.; Criação; Larva; Peixe; Pirarucu; Reprodução.; Arapaima gigas; Amazonia; Fish; Reproduction.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379258

Pré-engorda de tambaquis em sistema de recirculação de água.
Provedor de dados: 14
Autores: CORREA, R. de O.; AIRES, L. de N. dos A.; TAVARES, E. J. M.; LISBOA, V.; SILVA, R. S. da; CARVALHO, A. R.
bitstream/item/227050/1/TC-34-20-BPD-V05.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Peixe; Piscicultura; Nutrição Animal; Engorda; Água; Tambaqui; Colossoma Macropomum; Fish; Animal nutrition; Water.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135441

Boas práticas de produção de alevinos de tambaqui (Colossoma macropomum).
Provedor de dados: 14
Autores: MATAVELI, M.; MACIEL, P. O.; EVANGELISTA, D. K. R.; SHIOTSUKI, L.; DIGMAYER, M.
Introdução. Estrutura física básica de uma Unidade de Produção de Alevinos. Setor de Laboratório de Reprodução e Larvicultura. Setor de Plantel de Reprodutores. Manejo e Identificação Individual. Formação do plantel. Alimentação de matrizes e reprodutores. Setor de Laboratório de Reprodução e Larvicultura. Seleção de matrizes e reprodutores para reprodução. Indução hormonal, extrusão e fertilização dos gametasel. Bem-estar das matrizes e dos reprodutores. Larvicultura. Setor de Alevinagem. Considerações finais.
Tipo: Folhetos
Palavras-chave: Piscicultura; Produção Pesqueira; Alevino; Peixe; Tambaqui; Fish; Fish production; Colossoma; Good aquaculture practices.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1138148

Sistema de Controle de Pesca de Mato Grosso do Sul SCPESCA/MS 25-2018.
Provedor de dados: 14
Autores: CATELLA, A. C.; CAMPOS, F. L. de R.; ALBUQUERQUE, S. P.
Este é o 25º Boletim de Pesquisa do Sistema de Controle da Pesca de Mato Grosso do Sul - SCPesca/MS. A Embrapa Pantanal publica essas informações em parceria com a Secretaria de Estado de Meio Ambiente, Desenvolvimento Econômico, Produção e Agricultura Familiar por meio do Instituto de Meio Ambiente de Mato Grosso do Sul, juntamente com o 15º Batalhão de Polícia Militar Ambiental de Mato Grosso do Sul. A pesca é uma atividade de considerável expressão econômica, social e ambiental no Estado de Mato Grosso do Sul e seu monitoramento na Bacia do Alto Paraguai pelo Sistema de Controle da Pesca de Mato Grosso do Sul - SCPesca/MS constitui um exemplo gratificante de parceria entre instituições que atuam no Pantanal. Por meio deste Sistema, que não seria...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Estatística Pesqueira; Peixe; Pesca; Pescador; Fisheries statistics; Fishermen; Fish.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129232

Piscicultura na agricultura familiar.
Provedor de dados: 14
Autores: CAMPECHE, D. F. B.; GUILHERME, L. C.
Neste capítulo, serão abordados os principais aspectos da piscicultura para ser implantada em áreas dependentes de chuva no Semiárido brasileiro.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Piscicultura no Semiárido; Ambiente de criação; Sistemas de criação; Sisteminha Embrapa-UFU-Fapemig; Manejo alimentar; Agricultura Familiar; Piscicultura; Peixe; Tilápia; Tambaqui; Curimatã; Carpa; Qualidade da Água; Agricultura de Subsistência; Fish; Family farms.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118519

Boas práticas de manejo (BPMs) para a produção de peixes em tanques-redes.
Provedor de dados: 14
Autores: ROTTA, M. A.; QUEIROZ, J. F. de.
Aqücultura e meio ambiente; Qualidade de água e BPMs; Manejo alimentar e qualidade de água; Temperatura da água e estratificação; Oxigênio dissolvido e produtividade primária; Qualidade de água e estresse; BPMs nas pisciculturas em tanques-redes; Contrele da erosão e do aporte de sedimentos nos viveiros e reservatórios; Redução da carga orgânica; Conservação dos recursos hídricos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Tanque-rede; Fish breeding; Production; Management; Quality.; Água; Aqüicultura; Manejo; Peixe; Piscicultura; Produção; Qualidade.; Aquaculture; Fish; Water.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/798993

Seleção de bactéria espécie-específica com potencial probiótico para o tambaqui.
Provedor de dados: 14
Autores: DIAS, J. A. R.; ABE, H. A.; SOUSA, N. da C.; COUTO, M. V. S. do; SILVIERA, D. S. da; CORDEIRO, C. A. M.; MENESES, J. O.; CUNHA, F. S.; PAIXAO, P. E. G.; FARIAS, A. E. N. de O.; SANTOS, T. B. R.; SOUSA, R. C. de; CARNEIRO, P. C. F.; MARIA, A. N.; MOURINO, J. L. P.; MARTINS, M. L.; FUJIMOTO, R. Y.
bitstream/item/186690/1/DOC-217.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Peixe; Tambaqui; Piscicultura; Colossoma Macropomum; Aquicultura.; Fish.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1099821

Tambaqui: benefícios econômicos com a adoção do Tambaplus Parentesco.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; FLORES, R. M. V.; IANELLA, P.; CASTILHO-BARROS, L.; OLIVEIRA, E. J. de; CAETANO, A. R.
O Tambaplus Parentesco se apresenta como uma ferramenta que pode contribuir com o aumento da qualidade genética dos alevinos de tambaqui por meio da redução de acasalamentos endogâmicos obtida com o melhor gerenciamento do plantel. Como consequência, espera-se uma redução de custos de produção e incremento na oferta de formas jovens, o que trará ganhos significativos para toda a cadeia produtiva.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tambaplus Parentesco; Tambaqui; Peixe; Produção Pesqueira; Alevino; Cadeia Produtiva; Fish; Colossoma; Fish production.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128921

Tambaqui: benefícios econômicos com a adoção do Tambaplus Parentesco.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; FLORES, R. M. V.; IANELLA, P.; CASTILHO-BARROS, L.; OLIVEIRA, E. J. de; CAETANO, A. R.
O Tambaplus Parentesco se apresenta como uma ferramenta que pode contribuir com o aumento da qualidade genética dos alevinos de tambaqui por meio da redução de acasalamentos endogâmicos obtida com o melhor gerenciamento do plantel. Como consequência, espera-se uma redução de custos de produção e incremento na oferta de formas jovens, o que trará ganhos significativos para toda a cadeia produtiva.
Tipo: Folhetos
Palavras-chave: Tambaplus Parentesco; Tambaqui; Peixe; Produção Pesqueira; Alevino; Cadeia Produtiva; Fish; Colossoma; Fish production.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128986

Elaboração de silagem ácida de vísceras de surubin (Pseudoplatystoma sp.).
Provedor de dados: 14
Autores: HISANO, H.; BORGHESI, R.
bitstream/item/62557/1/CT201118-1.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Production.; Água Doce; Nutrição; Peixe; Produção.; Fish; Freshwater; Nutrition.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/929778

Alteracoes limnologicas no Rio Paraguai ("dequada") e o fenomeno natural de mortandade de peixes no Pantanal Mato-Grossense - MS.
Provedor de dados: 14
Autores: CALHEIROS, D. F.; FERREIRA, C. J. A.
No Pantanal, ocorre um fenomeno natural de deterioracao da qualidade da agua, denominado regionalmente como "Dequada", relacionado a decomposicao da grande massa de materia organica submersa no inicio do processo de inundacao. Sua magnitude e dependente das caracteristicas do pulso de inundacao, ou seja, caracteristicas da fase de seca anterior e do periodo de inundacao subsequente (volume e velocidade). De acordo com essa magnitude, pode provocar mortandade massiva de peixes (podendo alcancar a ordem de milhares de toneladas), docorrente da deplecao de oxigenio e do aumento da concentracao de gas carbonico, resultantes dos processos de oxidacao da materia organica, tanto nos campos inundados, quanto na coluna d'agua dos rios. Os peixes moribundos...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Dequada; Mortandade; Rio Paraguai; Mato Grosso do Sul; Brasil; Kills.; Limnologia; Peixe.; Brazil; Paraguay River; Pantanal; Fish; Limnology; Mortality.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/792189

Estudo de mercado do Bijupirá Rachycentron Canadum em Aracaju, Sergipe.
Provedor de dados: 14
Autores: SILVA, C. A. da; CUENCA, M. A. G.
bitstream/item/161972/1/BP-127.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Peixe; Economia; Mercado; Fish.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1065229

Protocolo de boas práticas de manejo durante a fase de produção de alevinos de tambaqui na região do Baixo São Francisco AL/SE.
Provedor de dados: 14
Autores: SANTOS, T. B. R.; FUJIMOTO, R. Y.; ABE, H. A.; PAIXAO, P. E. G.; MENESES, J. O.; DIAS, J. A. R.; SOUSA, N. da C.; COUTO, M. V. S. do; CUNHA, F. S.; SANTOS, C. C. M.; MACIEL, P. O.
bitstream/item/222520/1/CT-88-20-embrapa-tabuleiros-costeiros.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Manejo de viveiros; Tambaqui; Alevino; Peixe; Tilápia; Piscicultura; Manejo; Economia; Fish.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127088

Diagnóstico da piscicultura na Bacia do Alto Taquari - MS.
Provedor de dados: 14
Autores: ROTTA, M. A.
O objetivo deste trabalho é a caracterização da situação da piscicultura na bacia do alto Taquari (BAT) a fim de se propor melhorias no seu sistema, viabilizando-o como meio alternativo de renda para os produtores da região. Este estudo foi realizado no mês de abril de 2003 através de levantamento com a aplicação de um questionário aos piscicultores da BAT. Foram obtidas informações para caracterizar os produtores, a propriedade e a produção, além de outros aspectos relevantes à atividade. Dos 24 produtores localizados na BAT, 12 (50%) se encontram em atividade, 10 estão inativos (42%) e em dois deles (8%) não foi possível obter informações. Na BAT a atividade de piscicultura vem sendo realizada principalmente em grandes propriedades, com área média de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Caracterização; Bacia do Alto Taquari; Mato Grosso do Sul; Brasil; Diagnostic; Production; Scrutiny; Characterization; Taquari river; Wetland.; Diagnostico; Levantamento; Peixe; Produção.; Piscicultura; Brazil; Pantanal; Fish culture.; Fish.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/786918

Produção de juvenis de tambaqui em tanques-rede.
Provedor de dados: 14
Autores: SILVA, C. A. da.
bitstream/item/81014/1/folder-bercario-tambaqui.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Tanque rede; Peixe; Pesca; Tambaqui; Método de pesca; Fish.
Ano: 2012
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/954486

Estratégias de manejo para a produção de tilápia no período de cheia do Lago Sobradinho: uma abordagem relativa à qualidade da água.
Provedor de dados: 14
Autores: CAMPECHE, D. F. B.; SILVA, P. T. de S. e.
O objetivo desta publicação é contextualizar as mortalidades massivas com os fenômenos naturais e também orientar extensionistas e produtores no manejo para a produção de tilápia no período de cheia no Lago de Sobradinho, estado da Bahia.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Lago de Sobradinho; Tanques-rede; Piscicultura; Peixe; Tilápia; Peixe de Água Doce; Produção Pesqueira; Aquicultura; Qualidade da Água; Cadeia Produtiva; Oreochromis Niloticus; Fish.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1114124

Núcleo de conservação do pirarucu (Arapaima gigas): Embrapa Pesca e Aquicultura.
Provedor de dados: 14
Autores: VARELA, E. S.; LIMA, A.; TORATI, L.; BENTES, A.
O Pirarucu (Arapaima gigas) é considerado o maior peixe de escamas de água doce do mundo, podendo chegar a 200 Kg e três metros de comprimento. Em ambiente produtivo, essa espécie pode atingir 10 Kg em um ano com 57% de rendimento de filé sem espinhos. A espécie ocorre naturalmente na Bacia Amazônica, do Peru até a bacia Araguaia-Tocantins. O banco de germoplasma do pirarucu na Embrapa já pode ser considerado um patrimônio genético da sociedade brasileira dado ao seu valor real e potencial para desenvolver a aquicultura regional e reduzir a pressão de pesca predatória dos estoques silvestres.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Peixe; Pirarucu; Banco de Germoplasma; Arapaima gigas; Fish.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129522

Colágeno e gelatina de pele de tilápia (Oreochromis niloticus): rotas de agregação de valor.
Provedor de dados: 14
Autores: EMBRAPA AGROINDÚSTRIA TROPICAL.
Tipo: Folders
Palavras-chave: Pele de tilápia; Indústria farmaceutica; Cosméticos; Indústrias de processamento de produtos funcionais; Indústria química; Oreochromis Niloticus; Tilápia Nilótica; Fish.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1143205

Uso da farinha de minhoca como alimento para pós-larvas de tilápia.
Provedor de dados: 14
Autores: ROTTA, M. A.; AFONSO, L. O. B.; PENZ JÚNIOR, A. M.; WASSERMANN, G. J.
Foi avaliada a influência da substituição da farinha de peixe pela farinha de minhoca (Eisenia foetida) no crescimento de pós-larvas de tilápia nilótica (Oreochromis niloticus). A farinha de peixe, que correspondeu a 50% da proteína da dieta, foi substituída pela farinha de minhoca nos seguintes níveis: 0%, 20%, 40%, 60%, 80% e 100%. Os peixes foram alimentados à vontade, quatro vezes ao dia, sendo pesados e medidos aos 21 e 41 dias de experimentação. O delineamento experimental foi o completamente casualizado, com quatro repetições por tratamento e 20 peixes por unidade experimental. Os dados coletados foram analisados pela ANOVA, sendo as médias posteriormente classificadas pelo teste de Tukey (5%). Após 21 dias, não houve diferença significativa entre...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Farinha de minhoca; Análise de custo; Fonte protéica; Desempenho animal; Earthworm meal; Feeding; Costs analysis; Protein source.; Alimentação; Farinha de Peixe; Nutrição; Peixe; Tilápia.; Animal performance; Fish meal; Fish; Nutrition.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811023

O mercado da tilápia - 4º trimestre de 2015.
Provedor de dados: 14
Autores: MUNOZ, A. E. P.; BARROSO, R. M.; LÓPEZ RÍOS, J.; MEDEIROS, F.
Comportamento do mercado de varejo nacional. Evolução dos preços. A abertura do mercado brasileiro à tilápia chinesa. O setor externo.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Tilápia; Peixe de água doce; Comércio exterior; Mercado nacional; Fish; Market prices; Prices; Trade policy; Tilapia (common name).
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1036972

Peixes insetívoros e zooplanctófagos da planície inundável do Rio Miranda, Pantanal, Mato Grosso do Sul, Brasil.
Provedor de dados: 14
Autores: RESENDE, E. K. de; PEREIRA, R. A. C.; ALMEIDA, V. L. L. de; SILVA, A. G. da.
Estudou-se a alimentacao de peixes insetivoros e zooplanctofagos de quatro ambientes da planicie de inundacao do rio Miranda (dois bracos mortos, uma vazante e uma lagoa). Cinco especies sao insetivoras (T. stellatus, R. hahni, P. mucosa, P. striatulus e B. splendens), seis zooplanctofagas (P. kennedyi, E. benjamini, H. littorale, C. callichthys, B. britski e S. pappaterra) e tres, zooplanctofagas, insetivoras ou ambas, dependendo da disponibilidade desses alimentos no ambiente (M. dichroura, P. paraguayensis e E. trilineata). Estas especies, juntamente com as detritivoras, compoem a base da cadeia alimentar aquatica no Pantanal.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Comunidade; Peixe onivoro; Rio Miranda; Mato Grosso do Sul; Brasil; Comunity; Feeding; Onivorus fishes.; Alimentação; Cadeia Alimentar; Ecologia; Peixe.; Brazil; Pantanal; Fish; Ecology; Food chain.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/804404

Sistema de Controle de Pesca de Mato Grosso do Sul SCPESCA/MS 24-2017.
Provedor de dados: 14
Autores: CATELLA, A. C.; CAMPOS, F. L. de R.; ALBUQUERQUE, S. P.
O SCPesca/MS constitui uma fonte importante de informações para os setores da pesca e sociedade em geral, contribuindo com subsídios para as políticas públicas e tomadas de decisões relacionadas à gestão sustentável dos recursos pesqueiros da Bacia do Alto Paraguai em Mato Grosso do Sul.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Peixe; Estatística Pesqueira; Fish; Fisheries statistics.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129121

Influencia da nutrição sobre a qualidade do pescado: especial referência aos ácidos graxos.
Provedor de dados: 14
Autores: BORGHESI, R.; HISANO, H.; SUCASAS, L. F. DE A.; LIMA, L. K. F. de; OETTERER, M.
Reconhecida como uma fonte de proteína de alta qualidade, a carne de pescado tem sido objeto de inúmeras pesquisas relacionadas à sua composição em ácidos graxos, dentre os quais se encontram os popularmente conhecidos como ômega-3, os quais estão diretamente associados à saúde humana pelo seu efeito protetor, principalmente contra doenças cardiovasculares e reumatismo. Nesse sentido, um dos grandes desafios da aquicultura é apresentar ao consumidor um produto final que se assemelhe, em termos nutricionais e sensoriais, aos peixes capturados na natureza que são ricos em ácidos graxos. Este documento faz uma revisão da influência da nutrição nos peixes cultivados sobre a composição de ácidos graxos e a importância dessa como ferramenta para melhorar a...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pescado; Productition.; Nutrição; Produção.; Fish; Nutrition.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/982141

Canulação como técnica de baixo custo para identificação do sexo e condição reprodutiva em fêmeas de pirarucu Arapaima gigas.
Provedor de dados: 14
Autores: TORATI, L. S.; LIMA, A. F.; KIRSCHNIK, L. N. G.; MIGAUD, H.
Descreve os estágios de maturação gonadal nas fêmeas para que as biópsias ovarianas coletadas por meio da canulação possam auxiliar na identificação da maturidade sexual das fêmeas e assim aumentar as chances de sucesso no processo de formação de casais para reprodução.
Tipo: Folhetos
Palavras-chave: Peixe; Pirarucu; Reprodução Animal; Sexo; Maturidade Sexual; Fish; Arapaima gigas; Sexual maturity.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1149789

Manual para gestão da água e de resíduos do processamento de peixes.
Provedor de dados: 14
Autores: LUIZ, D. de B.; SANTOS, V. R. V. dos; LIMA, L. K. F. de; FRITZ, A. R. M.; BRIGIDA, A. I. S.; SOUZA, A. L. M. de; MUÑOZ, A. E. P.; FURTADO, A. A. L.; MESQUITA, E. de F. M. de; PONSANO, E. H. G.; GUIMARÃES, J. de T.; NAVAL, L. P.; RODRIGUES, L. G. G.; IWASHITA, M. K. P.; CHICRALA, P. C. M. S.; MOREIRA, R. de F. P. M.; BORGHESI, R.; ALVES, R. R.; MARTO, V. C. de O.
O Manual para gestão da água e de resíduos do processamento de peixes é uma publicação técnica que aborda de forma organizada e didática duas questões fundamentais para gestão das indústrias de processamento de pescados nos tempos atuais: consumo de água e geração de resíduos. Para isso, reunimos uma equipe multidisciplinar com conhecimento em legislação, produção e sanidade de peixes, processamento de alimentos, melhoria de processos industriais, microbiologia, economia e estatística. Esse contexto ganha relevância diante da frequência com que diversas regiões no planeta têm sofrido com a escassez de água e com a contaminação química e orgânica dos corpos hídricos, em razão do descarte incorreto de resíduos e efluentes gerados nas indústrias. O foco no...
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Pesca Industrial; Tecnologia de Alimento; Recurso Hídrico; Processamento; Produto Derivado de Pescado; Água; Resíduo; Industrialization; Fish; Water; Processing residues; Fisheries management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127919

Programas de melhoramento genético na piscicultura.
Provedor de dados: 14
Autores: SILVA, G. F. da; SHIOTSUKI, L.; TEIXEIRA, R. de A.; DIAS, L. T.; VILLELA, L. C. V.; FREITAS, L. E. L. de; KIRSCHNIK, L. N. G.; VARELA, E. S.
Objetivou-se com a presente publicação descrever programas de melhoramento genético de sucesso na piscicultura mundial, apontando tendências sobre o tema e indicando as futuras contribuições que programas de melhoramento genético para espécies nativas podem alcançar no Brasil.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Melhoramento Genético Animal; Piscicultura; Seleção Genética; Cruzamento; Salmão; Carpa; Tilápia; Peixe; Fish; Breeding and Genetic Improvement; Animal breeding.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1093364

Tilapia production and feeding management in the semi-arid of brazil: a view of some recent developed techniques.
Provedor de dados: 14
Autores: CAMPECHE, D. F. B.; BEZERRA, R. de S.; MELO, J. F. B. de; CORREIA, E. de S.
The Semi-Arid is not one of the first climates that comes to mind when fish production is imagined. First of all, it is important to describe the semi-arid in Brazil since it enclosures 969.589,4 km2, about 11% of the Brazilian territory, and more than 1.000 municipalities in 9 different Brazilian States. In this area live over 22 million people, which is about 10% of the Brazilian total population. However the Brazilian semi-arid has some particular characteristics that made it possible.The São Francisco River and large water reservoirs such as Castanhão and Orós are some of the water bodies where tilapia culture has been sucessfull. There are several production systems adopted ranging from tilapia in irrigation reservoirs on small rural properties to...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Manejo alimentar; Consumo humano.; Tilapia; Peixe; Produção; Aquicultura.; Fish; Aquaculture.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1001169

Resposta do pacu (Piaractus mesopotamicus) ao estresse de transporte sob influência do óleo essencial de cidreira.
Provedor de dados: 14
Autores: SANTANA, A. F; SILVA, C. A. H. da; INOUE, L. A. K. A.
bitstream/item/189858/1/ORAL6.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Peixe; Erva Cidreira; Piscicultura; Óleo Essencial; Fish.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103118

Caracterização da cadeia produtiva da tilápia nos principais polos de produção do Brasil.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; RIBEIRO, V. S.; ROCHA, H. S.; UMMUS, M. E.; VALE, T. M. do.
A produção de tilápia tem crescido de forma constante nos últimos anos, assegurando a posição de espécie mais produzida na piscicultura brasileira. Apesar de ser produzida em quase todo o Brasil, a cadeia produtiva da tilápia apresenta uma concentração em determinadas microrregiões, sendo que os polos mais importantes em termos de volume de produção estão localizados nas regiões Sul, Sudeste e Nordeste. O presente estudo tem por objetivo fazer uma análise da cadeia produtiva da tilápia nos principais polos de produção do Brasil, a partir de entrevistas feita a produtores e demais agentes do setor. Os resultados indicam que os polos de tilapicultura são muitos diferentes quanto às suas características produtivas, socioeconômicas e estruturais. De uma...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Polos produtivos; Piscicultura; Peixe; Tilápia; Cadeia Produtiva; Produção Pesqueira; Fish; Fish production; Food chain.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125358

Análise do potencial de instalação de unidades de criação da Garoupa Verdadeira (Epinephelus marginatus) a partir de análises de inteligência territorial estratégica no estado de Santa Catarina.
Provedor de dados: 14
Autores: EVANGELISTA, D. K. R.; UMMUS, M. E.; SOUSA, D. N. de.
Este documento tem como objetivo analisar o potencial de implantação de unidades de produção de garoupa verdadeira aproveitando estruturas de viveiros escavados já existentes, além de verificar alguns requisitos inerentes às condições ideais de criação da garoupa verdadeira no contexto do estado de Santa Catarina. Para isso, serão utilizadas as análises de inteligência territorial estratégica a partir de mapas temáticos e informações georreferenciadas obtidas do Sistema de Inteligência Territorial Estratégica para Aquicultura (SITE Aquicultura). Este estudo contribui com os Objetivos do Desenvolvimento Sustentável, especialmente em relação à meta 14.2: “gerir de forma sustentável e proteger os ecossistemas marinhos e costeiros para evitar impactos adversos...
Tipo: Folhetos
Palavras-chave: Santa Catarina; Selo ODS 14; Agenda 2030; Objetivo de desenvolvimento sustentável; Piscicultura; Peixe Marinho; Produção Pesqueira; Produção Animal; Viveiro; Epinephelus marginatus; Fish; Fish production.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1148116

Engorda de tambaqui em tanques-rede.
Provedor de dados: 14
Autores: SILVA, C. A. da.
bitstream/item/81020/1/folder-engorda-tambaqui.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Alimentação animal.; Peixe; Tambaqui; Nutrição animal; Engorda.; Fish.
Ano: 2012
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/954489

Criação de peixe-folha em cativeiro.
Provedor de dados: 14
Autores: ABE, H. A.; DIAS, J. A. R.; RAMOS, F. M.; SOUSA, N. da C.; COUTO, M. V. S.; CUNHA, F. dos S.; BOMFIM, R. V.; CARNEIRO, P. C. F.; MARIA, A. N.; FUJIMOTO, R. Y.
bitstream/item/152722/1/CT-80.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Peixe folha; Peixe; Peixe de água doce; Piscicultura; Fish; Freshwater fish.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1059882

Núcleo de conservação de caranha (Piaractus brachypomus): Embrapa Pesca e Aquicultura.
Provedor de dados: 14
Autores: KIRSCHNIK, L. N. G.
A caranha Piaractus brachypomus, também conhecida como pirapitinga, é uma espécie de peixe nativa das bacias hidrográficas do Norte do País (Tocantins-Araguaia e Amazonas), sendo produzida principalmente nas regiões Norte, Nordeste e Centro-Oeste. Além da sua criação, a caranha vem sendo bastante utilizada, juntamente com o tambaqui, para a produção de híbridos. Sua carne é apreciada pela maior deposição muscular na região do lombo, consequência do formato de seu corpo que é arredondado, com dorso alto e região das costelas ampla.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caranha; Banco de Germoplasma; Peixe; Conservação; Piaractus brachypomus; Fish.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129519

Aspectos gerais da fisiologia e estrutura do sistema digestivo dos peixes relacionados à piscicultura.
Provedor de dados: 14
Autores: ROTTA, M. A.
Digestão; Anatomia do aparelho digestivo; Cavidade bucal; Esôfago; Estômago; Intestino; Reto; Inervação do trato digestivo; Órgãos digestivos acessórios; Consumo e tempo de passagem do alimento; Consumo e tempo de enchimento gástrico; Motilidade e estase do intestino; Secreções da boca e do esôfago; Secreções digestivas; Secreções do intestino; Absorção; Aspectos gerais da digestão e da alimentação das larvas e pós-larvas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Sistema digestivo; Estrutura; Fishing; Structure.; Fisiologia; Peixe; Piscicultura.; Digestive system; Fish; Physiology.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811108

O mercado da tilápia - 2° trimestre de 2016.
Provedor de dados: 14
Autores: BARROSO, R. M.; MUNOZ, A. E. P.; LÓPEZ RIOS, J.
Nesta edição são analisados dados do mercado de tilápia referentes ao segundo trimestre de 2016. As unidades federativas pesquisadas foram São Paulo, Rio de Janeiro, Paraná, Santa Catarina, Distrito Federal e Ceará, com os preços obtidos junto a supermercados e peixarias. A amostra selecionada representa este segmento de mercado da região metropolitana de cada capital, considerando tanto a distribuição geográfica quanto o tipo e tamanho do estabelecimento. No total, foram coletados 247 preços do dia 8 de abril a 15 de junho de 2016.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Tilápia; Comércio exterior; Mercado nacional; Peixe de água doce; Fish; Market prices; Prices; Tilapia (common name); Trade policy.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1051014

Utilização do ácido ascórbico (vitamina C) pelos peixes.
Provedor de dados: 14
Autores: ROTTA, M. A.
Importância do ácido ascórbico na nutrição dos peixes; Nutrição dos peixes; Histórico e evolução; Química; Absorção e funções metabólicas; Crescimento; Reprodução; Resposta ao estresse; Resistência a doenças; Formas do ácido ascórbico e doses utilizadas; Estabilidade; Bioatividade; Doses.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ácido ascórbico; Aquacultura; Vitamin.; Dieta; Peixe; Nutrição; Vitamina C.; Ascorbic acid; Aquaculture; Fish; Diet; Nutrition.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/799021

O mercado de peixes da piscicultura no Brasil: estudo do segmento de supermercados.
Provedor de dados: 14
Autores: PEDROZA FILHO, M. X.; FLORES, R. M. V.; ROCHA, H. S.; SILVA, H. J. T. da; SONODA, D. Y.; CARVALHO, V. B. de; OLIVEIRA, L. de; RODRIGUES, F. L. M.
A piscicultura brasileira vem se desenvolvendo de forma robusta, com significativos avanços em termos de aumento da produção e profissionalização do setor. Os supermercados têm se consolidado como o principal canal de varejo de pescados em todo o Brasil e isso impõe a necessidade de melhor conhecer os hábitos dos consumidores deste segmento de mercado. Assim, este estudo apresenta resultados referentes a diferentes aspectos, tais como preferências e percepções dos consumidores quanto aos produtos da piscicultura, nível de conhecimento quanto às principais espécies, hábitos de consumo e características socioeconômicas dos consumidores. A pesquisa foi realizada em supermercados de Brasília (DF), Curitiba (PR), Manaus (AM), Recife (PE) e São Paulo (SP) e...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Característica socioeconômica; Piscicultura; Peixe; Mercado; Consumo Alimentar; Habito Alimentar; Fish; Fresh market; Supermarkets; Food consumption.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124524

Biologia do Curimbatá (Prochilodus lineatus), Pintado (Pseudoplatystoma corruscans) e Cachara (Pseudoplatystoma fasciatum) na bacia hidrográfica do Rio Miranda, Pantanal do Mato Grosso do Sul, Brasil.
Provedor de dados: 14
Autores: RESENDE, E. K. de; CATELLA, A. C.; NASCIMENTO, F. L.; PALMEIRA, S. da S.; PEREIRA, R. A. C.; LIMA, M. de S.; ALMEIDA, V. L. L. de.
E analisada a biologia do curimbata (P. lineatus), do pintado (P. corruscans) e da cachara (P. fasciatum) na bacia hidrografia do rio Miranda. Estas especies realizam migracoes ascendentes para reproducao a partir de setembro-outubro. A desova, do tipo total, ocorre nos cursos superiores dos rios Miranda e Aquidauna, principalmente de dezembro a fevereiro. Apos a desova, retornam aos cursos inferiores, onde se espalham pelas areas alagadas, alimentando-se fartamente. Este padrao de migracao esta ligado ao ciclo fluviometrico desses rios. P. lineatus e uma especie detritivora, enquanto P. corruscans e P. fasciatum sao ictiofagas generalistas. Jovens e adultos apresentam distribuicao diferenciada. O crescimento dessas especies e analisado.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Curimbata; Pintado; Cachara; Mato Grosso do Sul; Brasil; Biology.; Biologia; Ecologia; Peixe; Reprodução.; Pseudoplatystoma Fasciatum; Brazil; Pantanal; Prochilodus lineatus; Pseudoplatystoma corruscans; Fish; Reproduction.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/789558

Piscicultura familiar.
Provedor de dados: 14
Autores: SILVA, T. S. de C.; BORGHESI, R.; INOUE, L. A. K. A.
bitstream/item/183070/1/140-143.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Piscicultura; Instalação Para Animal; Tanque; Peixe; Fish; Agropisciculture.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1095813

Relatório técnico: pulso de inundação, diversidade e biologia dos peixes na Baía do Tuiuiú, Pantanal Sul.
Provedor de dados: 14
Autores: RESENDE, E. K. de; SALIS, S. M. de; ISHII, I. H.; SANTOS, R. A. C. P.; MOURA, H. C. G. de; MONACO, I. de A.; FERREIRA, L. K. S. G.; SILVA, L. W. da.
O Pantanal é conhecido pela sua riqueza ictiofaunística e constitui região de pesca visitada por muitos pescadores esportivos. Mas o que faz com que esse tipo de ambiente inundável seja tão rico em peixes? Esse artigo se propõe a responder a essa questão, mostrando que o pulso de inundação, o encher e secar a cada ano, típico de ambientes inundáveis, é o processo ecológico que regula sua fauna e flora, particularmente os peixes. Para tanto foi escolhido um braço abandonado do Rio Paraguai, denominado localmente como Baía do Tuiuiú, onde se estudou o ambiente, em termos de vegetação circundante, as características limnológicas de suas águas e suas relações com os peixes ocorrentes em termos de composição, riqueza, diversidade e suas estratégias de vida.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pulso de inundação; Peixe; Inundação; Ecologia aquática; Fish; Floods; Aquatic ecosystems.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1053104

Recursos pesqueiros do Pantanal: diagnostico e propostas de pesquisa.
Provedor de dados: 14
Autores: RESENDE, E. K. de.
O presente trabalho levanta as informacoes disponiveis sobre a pesca e os recursos pesqueiros do Pantanal e apresenta proposta de pesquisa, para fornecer as informacoes tecnico-cientificas, necessarias ao aproveitamento racional dos recursos. Quatro componentes de pesquisa sao propostos para essas finalidades: estudo hidrologicos, para a compreensao do comportamento dos peixes e das suas respostas ao regime hidrologico; estudos limnologicos, para definicao da produtividade e da qualidade da agua das varias sub-regioes do Pantanal; analise da pesca, para determinacao da estrutura da pesca e para monitoramento de suas alteracoes; e estudos biologicos de peixes, para formacao de estrategias de manejo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recursos naturais; Recursos pesqueiros; Natural resource; Fishery resource.; Ictiologia; Pesca; Peixe; Pesquisa.; Pantanal; Fisheries; Fish; Research.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/788311

Rendimento de carne de pirarucu, Arapaima gigas (Cuvier).
Provedor de dados: 14
Autores: IMBIRIBA, E. P.; LOURENÇO JUNIOR, J. de B.; DUTRA, S.
bitstream/item/42268/1/Boletim-Pesquisa-150-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Brasil; Production; Yield.; Carne; Peixe; Produtividade; Pirarucu; Produção.; Arapaima gigas; Amazonia; Fish; Meat.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381115

Utilização da energia e da proteína pelos peixes.
Provedor de dados: 14
Autores: ROTTA, M. A.
Utilização da energia dietética; Fatores que afetam as exigências em energia e proteína nos peixes; Espécie; Fase de produção; Temperatura da água; Condição fisiológica; Salinidade da água; Interação com outros nutrientes; Processos tecnológicos de preparação das dietas; Comparação entre peixes e animais terrestres.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Aquacultura; Protein.; Energia; Peixe; Nutrição; Proteína.; Aquaculture; Fish; Energy; Nutrition.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810728

Piscicultura no Lago de Sobradinho.
Provedor de dados: 14
Autores: CAMPECHE, D. F. B.; MELO, J. A.
O Lago do Sobradinho é localizado no norte Estado da Bahia, e cercado pelos municípios: Casa Nova, Sobradinho, Sento Sé Pilão Arcado. A aptidão do lago do Sobradinho para a piscicultura e a grande demanda de mercado para pescado, direcionaram os projetos da Companhia de Desenvolvimento do Vale do São Francisco e Paranaíba ? CODEVASF- e da Bahia Pesca para a construção de unidades demonstrativas (UDs) de produção de tilápia em tanques-redes, no início da década de 2000. Esse projeto, pioneiro na piscicultura local, contou também com o apoio do Sebrae-BA, da então Secretaria da Pesca e Aquicultura/extinto Ministério da Pesca e Aquicultura e alguns anos depois da Embrapa Semiárido. O propósito foi despertar para a aquicultura, incentivar a atividade e o...
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Lago de Sobradinho; Casa Nova; Sento Sé; Bahia; Associação de pescadores; Piscicultura; Pesca; Método de Pesca; Sistema de Produção; Tilápia; Pescador; Artisanal fishing; Fish; Fish culture; Fish development; Fish farms; Agropisciculture.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1098042

Lymphocystis outbreaks in farmed sea bream, Sparus aurata, first report on French Mediterranean coast
Provedor de dados: 5
Autores: Le Deuff, Rose-marie; Renault, Tristan.
Among the Iridovirus related infections frequently described on many teleosts fish species, Viral Erythrocytic Necrosis (VEN) (Pinto et al., 1989), Epizootic Haematopoietic Necrosis Virus (EHNV) (Langdon et al., 1988) as weil as Lymphocystis Disease Virus (LDV) are not considered to directly cause fatality. Indeed, Lymphocystis outbreaks of farmed fish could be observed in some cases, as a consequence of a bacterial double infection or cannibalism (Ahne ef al., 1991; Moate et al., 1992). Here, we report for the first time a strong LDV infection, and an additional physical stress responsible for mortalities of reared sea bream, Sparus aurata, from Toulon area, on French Mediterranean coast. Although, since the first report of Lymphocystis in sea bream under...
Tipo: Text
Palavras-chave: Mortalities; Sparus aurata; Fish; Iridovirus.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/publication-2886.pdf

Marine protected areas and artificial reefs: A review of the interactions between management and scientific studies
Provedor de dados: 5
Autores: Claudet, Joachim; Pelletier, Dominique.
Inshore marine areas host key habitats for the biological cycle of many marine populations, but are subject to strong anthropogenic pressure. Uses of inshore areas are multiple and often give rise to conflicting interests. In this context. marine protected areas (MPAs) and artificial reefs (ARs) are increasingly regarded as interesting management measures, in that they contribute to ecosystem conservation, fisheries sustainability, and because they can be helpful in zoning coastal areas in order to reduce conflicts between users. Beyond these expected benefits, it is important to appraise whether MPAs and ARs meet managers' objectives. This review focuses on the interaction between ecological sciences and management in the purpose of establishing or...
Tipo: Text
Palavras-chave: Monitoring; Management actions objectives; Management; Impact assessment; Fish; Artificial reefs; Marine protected areas.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-397.pdf

Microparticulate diets as first food for gilthead sea bream larva (Sparus aurata): study of fatty acid incorporation
Provedor de dados: 5
Autores: Robin, Jean; Vincent, Benoit.
Recent advances have led to the development of inert diets for first-feeding marine fish larvae. The purpose of the present study was to evaluate fatty acid (FA) incorporation into larva using practical-type and semipurified diets as first food for larvae. Experimental microparticulate diets were fed to gilthead sea bream larvae, right from the mouth opening to day 21 post hatching. Five basal diets were compared, using fish meat or casein as main protein sources, and fish protein concentrate or casein hydrolysates and algae powder (Schizochytrium). Diets contained soybean lecithin to provide polar lipids and this also provided a high linoleic acid (18:2n-6) content. n-3 HUFA (1.5-1.7% DM) were mainly in dietary neutral lipids, with a part in polar lipids...
Tipo: Text
Palavras-chave: Sparus aurata; Inert diet; Fatty acids; Larva; Fish.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-499.pdf

Recherche et caractérisation d'immunoglobulines dans les oeufs du loup (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Pepin, Jean-francois; Breuil, Gilles; Rigobert, P; Romestand, Bernard.
The occurrence of maternal immunity transfer in Sea bass (Dicentrarchus labrax) was investigated using ELISA and Western blot technics. In order to determine the possible presence of immunoglobulin (Ig), egg proteins obtained from fertilized eggs were analyzed. After several extraction protocol assays (precipitation, chromatography), monoclonal and polyclonal antibody probes specific to Sea bass Ig allowed to confirm the presence of an immunoglobulin-like protein in eggs with very low level. Biochemical characterization was carried out using SDS-PAGE. Results indicated that egg Ig had a molecular weight of 206 kDa. They were smaller than seric IgM (800 kDa). The heavy (H) and light (L) chains of the egg Ig and of the seric IgM had similar molecular weight,...
Tipo: Text
Palavras-chave: Immunoglobuline; Transfert immunité maternelle; ELISA; Œuf; Poisson; Immunoglobulin; Maternal immunity transfer; ELISA; Eggs; Fish.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00272/38275/36458.pdf

Underwater video techniques for observing coastal marine biodiversity: A review of sixty years of publications (1952–2012)
Provedor de dados: 5
Autores: Mallet, Delphine; Pelletier, Dominique.
Underwater video techniques are increasingly used in marine ecology studies. Technological progress regarding video cameras, sensors (such as sounders), battery life and information storage make these techniques now accessible to a majority of users. However, diver-based underwater visual censuses, and catch and effort data, remain the most commonly used for observing coastal biodiversity and species. In this paper, we review the underwater video techniques that have been developed since the 1950s to investigate and/or monitor coastal biodiversity. Techniques such as remote underwater video, whether baited or not, diver-operated video and towed video are described, along with corresponding applications in the field. We then analyse the complementary of...
Tipo: Text
Palavras-chave: Underwater video; Monitoring; Coastal biodiversity; Fish; Habitat.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00181/29274/27901.pdf

Identification of Hypoxia-Regulated Genes in the Liver of Common Sole (Solea solea ) Fed Different Dietary Lipid Contents
Provedor de dados: 5
Autores: Mazurais, David; Ferraresso, Serena; Gatta, Pier Paolo; Desbruyeres, Elisabeth; Severe, Armelle; Corporeau, Charlotte; Claireaux, Guy; Bargelloni, Luca; Zambonino, Jose-luis.
Coastal systems could be affected by hypoxic events brought about by global change. These areas are essential nursery habitats for several fish species including the common sole (Solea solea L.). Tolerance of fish to hypoxia depends on species and also on their physiological condition and nutritional status. Indeed, high dietary lipid content has been recently shown to negatively impact the resistance of sole to a severe hypoxic challenge. In order to study the molecular mechanisms involved in the early response to hypoxic stress, the present work examined the hepatic transcriptome in common sole fed diets with low and high lipid content, exposed to severe hypoxia. The activity of AMP-activated protein kinase (AMPK) was also investigated through the...
Tipo: Text
Palavras-chave: Fish; Hypoxia; Nutrition; Liver; Transcriptome; AMPK.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00169/28062/26474.pdf

The Channel habitat atlas for marine resource management (CHARM): an aid for planning and decision-making in an area under strong anthropogenic pressure
Provedor de dados: 5
Autores: Martin, C. S.; Carpentier, Andre; Vaz, Sandrine; Coppin, Franck; Curet, L.; Dauvin, J. -c.; Delavenne, Juliette; Dewarumez, J. -m.; Dupuis, L.; Engelhard, G.; Ernande, Bruno; Foveau, A.; Garcia, C.; Gardel, Laure; Harrop, S.; Just, R.; Koubbi, P.; Lauria, Valentina; Meaden, G. J.; Morin, Jocelyne; Ota, Y.; Rostiaux, Emilie; Smith, R.; Spilmont, N.; Verin, Yves; Villanueva, Ching-maria; Warembourg, Caroline.
The eastern English Channel, the narrow channel of water separating northern France and southeast England is an area of intense human use of the array of resources concentrated into its relative small area. The vulnerability of living resources and their habitats brought together French and British maritime experts within a common project (called CHARM): to create an atlas of marine resource habitats in the eastern English Channel so as to provide planners and decision-makers with the necessary information to help managing the use of its living and non-living resources. This multidisciplinary and richly illustrated atlas provides abundant information on the legal framework and physical environment; benthic invertebrates, fish and their habitats; fishing...
Tipo: Text
Palavras-chave: Eastern English Channel; Dover Strait; Benthos; Fish; Habitat; Ecosystem; Marine spatial planning; Fisheries; Legislation; Trophic network; Food web; GIS; Geographic Information System.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00000/11169/7523.pdf

X-Linked Retinitis Pigmentosa 2 Is a Novel Maternal-Effect Gene Required for Left-Right Asymmetry in Zebrafish
Provedor de dados: 5
Autores: Desvignes, Thomas; Nguyen, Thaovi; Chesnel, Franck; Bouleau, Aurelien; Fauvel, Christian; Bobe, Julien.
Retinitis pigmentosa 2 (RP2) gene is responsible for up to 20% of X-linked retinitis pigmentosa, a severe heterogeneous genetic disorder resulting in progressive retinal degeneration in humans. In vertebrates, several bodies of evidence have clearly established the role of Rp2 protein in cilia genesis and/or function. Unexpectedly, some observations in zebrafish have suggested the oocyte-predominant expression of the rp2 gene, a typical feature of maternal-effect genes. In the present study, we investigate the maternal inheritance of rp2 gene products in zebrafish eggs in order to address whether rp2 could be a novel maternal-effect gene required for normal development. Although both rp2 mRNA and corresponding protein are expressed during oogenesis, rp2...
Tipo: Text
Palavras-chave: Developmental biology; Egg developmental competence; Egg quality; Fish; Fish reproduction; Maternal-effect gene; Ndpk; Nme10; Oocyte; Oocyte-specific; Ovum; Teleost; Zygote.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00280/39099/37660.pdf

The Effects of Feed Restriction and Isolated or Group Rearing on the Measurement of Individual Feed Intake and Estimation of Feed Conversion Ratio in Juvenile Nile Tilapia (Oreochromis niloticus) for Selective Breeding Purposes
Provedor de dados: 5
Autores: Rodde, Charles; Vandeputte, Marc; Quoc Trinh, Trong; Douchet, Vincent; Canonne, Marc; Benzie, John A. H.; De Verdal, Hugues.
Accurately measuring the phenotype at the individual level is critical to the success of selective breeding programs. Feed efficiency is a key sustainability trait and is typically approached through feed conversion ratio (FCR). This requires measurements of body weight gain (BWG) and feed intake (FI), the latter being technically challenging in fish. We assessed two of the principal methods for measuring feed intake in fish over consecutive days: (1) group rearing 10 fish per group and video recording the meals and (2) rearing fish individually on a restricted ration. Juvenile Nile tilapia (Oreochromis niloticus) from the Genetically Improved Farmed Tilapia (GIFT) strain and the Cirad strain were entered into the study (128 GIFT and 109 Cirad). The GIFT...
Tipo: Text
Palavras-chave: Feed efficiency; Individual rearing; Group rearing; Fish; Video analyses; Feed intake.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00677/78924/81292.pdf

Maternally Inherited npm2 mRNA Is Crucial for Egg Developmental Competence in Zebrafish
Provedor de dados: 5
Autores: Bouleau, Aurelien; Desvignes, Thomas; Traverso, Juan Martin; Nguyen, Thaovi; Chesnel, Franck; Fauvel, Christian; Bobe, Julien.
The molecular mechanisms underlying and determining egg developmental competence remain poorly understood in vertebrates. Nucleoplasmin (Npm2) is one of the few known maternal effect genes in mammals, but this maternal effect has never been demonstrated in nonmammalian species. A link between developmental competence and the abundance of npm2 maternal mRNA in the egg was previously established using a teleost fish model for egg quality. The importance of maternal npm2 mRNA for egg developmental competence remains unknown in any vertebrate species. In the present study, we aimed to characterize the contribution of npm2 maternal mRNA to early developmental success in zebrafish using a knockdown strategy. We report here the oocyte- specific expression of npm2...
Tipo: Text
Palavras-chave: Egg quality; Fish; Maternal effect gene; Maternal-to-zygotic transition; Nucleoplasmin; Oocyte developmental competence; Teleost; Zygotic genome activation.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00211/32234/30685.pdf

Surimi de chinchard ( Trachurus trachurus L. ) - Influence de conditions technologiques sur des caractéristiques de texture du produit après traitement thermique
Provedor de dados: 5
Autores: Verrez-bagnis, Veronique.
Surimi, washed fish mince after grinding with salt, has a firm and elastic gel texture or “ashi” after thermal processing. The major objectives of this study on horse mackerel (Trachurus trachurus) surimi are to optimize the technological conditions in the aim to obtain the best ashi, to determine the influence of frozen storage and of egg white and potata starch addition, and to establish the preventive effect of incorporation into surimi of different combinations of cryoprotectants and NaC1. Gel texture is, by order importance, dependent on cooking temperature, length of setting and cooking and length of grinding of surimi with texture additives after thawing. Changes of gelling properties after 6 months at - 30°C of frozen st orage are limited. The...
Tipo: Text
Palavras-chave: Fish; Horse mackerel (Trachurus trachurus L.); Surimi; Kamaboko; Myofibrillar proteins; Gelation; Thermal coagulation; Texture; Optimisation method; Technological treatments; Cryoprotectors; Texture ingredients; Microscopy; Water retention capacity.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00134/24507/22535.pdf

Calpain and cathepsin activities in post mortem fish and meat muscles
Provedor de dados: 5
Autores: Cheret, Romuald; Delbarre Ladrat, Christine; De Lamballerie Anton, Marie; Verrez-bagnis, Veronique.
Post mortem tenderization is one of the most unfavourable quality changes in fish muscle and this contrasts with muscle of mammalian meats. The tenderization can be partly attributed to the acid lysosomal cathepsins and cytosolic neutral calcium-activated calpains. In this study, these proteases from fish and bovine muscles were quantified and compared. The cathepsin B and L activities were in more important amounts in sea bass white muscle than in bovine muscle. On the other hand, cathepsin D activity was 1.4 times higher in meat that in fish muscle, while cathepsin H was negligible in both muscles. Calpain activities were similar in both types of muscle. Moreover, calpastatin (calpain endogenous inhibitor) level is 3.9 times higher in sea bass white...
Tipo: Text
Palavras-chave: Meat; Fish; Protease; Cathepsin; Calpain.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3646.pdf

Endogenous regulation of 11-deoxycorticosterone (DOC) and corticosteroid receptors (CRs) during rainbow trout early development and the effects of corticosteroids on hatching.
Provedor de dados: 5
Autores: Kiilerich, Pia; Geffroy, Benjamin; Valotaire, Claudiane; Prunet, Patrick.
Clear evidence for a physiological role of the mineralocorticoid-like hormone 11-deoxycorticosterone (DOC) and the mineralocorticoid receptor (MR) in fish is still lacking. Efforts to demonstrate an osmoregulatory role for this hormone has so far not been conclusive, while a few scattered studies have indicated a role for DOC in development and reproduction. In this study, we investigate the onset of de novo DOC synthesis in parallel with endogenous corticosteroid receptor mRNA production from fertilization to the swim-up stage in rainbow trout. Whole egg DOC content decreased from fertilization until hatching followed by an increase to pre-fertilization levels just after hatching. Onset of de novo transcription of corticosteroid receptor mRNA’s was...
Tipo: Text
Palavras-chave: 11-Deoxycortieosterone; Cortisol; Mineralocorticoid receptor; Glucocorticoid receptor; Fish; Development.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00443/55506/57055.pdf

Effects of oil exposure and dispersant use upon environmental adaptation performance and fitness in the European sea bass, Dicentrarchus labrax
Provedor de dados: 5
Autores: Claireaux, Guy; Theron, Michael; Prineau, Michel; Dussauze, Matthieu; Merlin, Francois Xavier; Le Floch, Stephane.
The worldwide increasing recourse to chemical dispersants to deal with oil spills in marine coastal ecosystems is a controversial issue. Yet, there exists no adequate methodology that can provide reliable predictions of how oil and dispersant-treated oil can affect relevant organism or population-level performance. The primary objective of the present study was to examine and compare the effects of exposure to untreated oil (weathered Arabian light crude oil), chemically dispersed oil (Finasol, TOTAL-Fluides) or dispersant alone, upon the ability of fish for environmental adaptation. To reach that goal, we implemented high-throughput, non-lethal challenge tests to estimate individual hypoxia and heat tolerance as surrogate measures of their capacity to...
Tipo: Text
Palavras-chave: Oil-spill; Dispersant; Fish; Temperature; Hypoxia; Survival; Growth; Environmental adaptation ability; Darwinian fitness.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00137/24831/23045.pdf

Hypoxia tolerance of common sole juveniles depends on dietary regime and temperature at the larval stage: evidence for environmental conditioning
Provedor de dados: 5
Autores: Zambonino, Jose-luis; Claireaux, Guy; Ernande, Bruno; Quazuguel, Patrick; Severe, Armelle; Huelvan, Christine; Mazurais, David.
An individual's environmental history may have delayed effects on its physiology and life history at later stages in life because of irreversible plastic responses of early ontogenesis to environmental conditions. We chose a marine fish, the common sole, as a model species to study these effects, because it inhabits shallow marine areas highly exposed to environmental changes. We tested whether temperature and trophic conditions experienced during the larval stage had delayed effects on life-history traits and resistance to hypoxia at the juvenile stage. We thus examined the combined effect of global warming and hypoxia in coastal waters, which are potential stressors to many estuarine and coastal marine fishes. Elevated temperature and better trophic...
Tipo: Text
Palavras-chave: Fish; Environmental programming; Climate change; Hypoxia; Nutrition.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00127/23858/21810.pdf

Estimates of genetic variability and inbreeding in experimentally selected populations of European sea bass
Provedor de dados: 5
Autores: Hillen, J. E. J.; Coscia, I.; Vandeputte, Marc; Herten, K.; Hellemans, B.; Maroso, F.; Vergnet, Alain; Allal, Francois; Maes, G. E.; Volckaert, F. A. M.
The aquaculture industry has increasingly aimed at improving economically important traits like growth, feed efficiency and resistance to infections. Artificial selection represents an important window of opportunity to significantly improve production. However, the pitfall is that selection will reduce genetic diversity and increase inbreeding in the farmed stocks. Genetic tools are very useful in this context as they provide accurate measures of genetic diversity together with many additional insights in the stock status and the selection process. In this study we assessed the level of genetic variability and relatedness over several generations of two lines of experimentally selected European sea bass (Dicentrarchus labrax L.). The first line was...
Tipo: Text
Palavras-chave: Artificial selection; DdRAD; Fish; Genetic diversity; Genomics; Inbreeding.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00392/50314/50993.pdf

Dietary lipid level affects fatty acid composition and hydrolase activities of intestinal brush border membrane in seabass
Provedor de dados: 5
Autores: Cahu, Chantal; Zambonino, Jose-luis; Corraze, Genevieve; Coves, Denis.
Triplicate groups of juvenile seabass (initial weight of 241 g) were fed during 13 weeks three isonitrogenous experimental diets containing different lipid levels, 12% (LL group), 21% (ML group) and 30% (HL group). At the end of the experiment, fish weight gain was similar among the 3 dietary groups. Intestinal brush border membranes were purified for each dietary group; one part of the brush border fraction was dedicated to enzyme assays, the remaining fraction being used for lipid extraction followed by fatty acid analysis. The fatty acid composition of the brush border membrane differed among the 3 groups, although the 3 experimental diets had the same fatty acid composition. The increase in dietary lipid level resulted in a lowering in (n-3)...
Tipo: Text
Palavras-chave: Membrane lipid; Intestine; Fish; Fatty acids; Dietary lipids; Brush border hydrolases.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-901.pdf

Linking environmental variability and fish performance: integration through the concept of scope for activity
Provedor de dados: 5
Autores: Claireaux, Guy; Lefrancois, Christel.
Investigating the biological mechanisms linking environmental variability to fish production systems requires the disentangling of the interactions between habitat, environmental adaptation and fitness. Since the number of environmental variables and regulatory processes is large, straightening out the environmental influences on fish performance is intractable unless the mechanistic analysis of the 'fish-milieu' system is preceded by an understanding of the properties of that system. While revisiting the key points in our currently poorly integrated understanding of fish ecophysiology, we have highlighted the explanatory potential contained within Fry's ( Fry 1947 Univ. Toronto Stud. Biol. Ser. 55, 1 - 62) concept of metabolic scope and categorization of...
Tipo: Text
Palavras-chave: Fish; Environmental adaptation; Environmental conditions; Scope for metabolic activity.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3306.pdf

DIPNET - A European project to evaluate disease interactions and pathogen exchange between farmed and wild aquatic animal population fish, shellfish and crustaceans
Provedor de dados: 5
Autores: Miossec, Laurence; Garseth, A. H.; Midtlyng, P. J.; Raynard, R.; Peeler, E.; De Bals, I.
DIPNET (Disease Interaction and Pathogen exchange Network) is a co-ordination action funded under the UE Framework programme 6 priority 8 Scientific Support to Policy (SSP). The principal objective of DIPNET is to increase scientific knowledge of the potential transfer of pathogens and diseases between wild and farmed fish and shellfish populations. DIPNET started in October 2004 and is a 2 year project. The project is organized in four work packages. Work package (WP) 1 is focused on a literature review of disease interactions and pathogen exchange between farm and wild aquatic animals. This analysis includes both published and unpublished literature. The work covers a wide range of habitats and species within Europe and, where relevant, world-wide. WP1...
Tipo: Text
Palavras-chave: DIPNET; Crustaceans; Shellfish; Fish; Epidemiology; Risk assessment; Diseases; Transfer of pathogens.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3325.pdf

Traitement des effluents piscicoles marins par lagunage a haut rendement algal
Provedor de dados: 5
Autores: Pagand, Pascal.
When facing the increasing development of aquaculture, farming in recycled water is an alternative to limit the impact on the environment: farming produces a lower amount of wastes but of higher concentration which can be treated. The goal of this thesis is to evaluate the efficiency of high rate algal lagooning/ponding (HRAP) for the treatment of marine fish culture effluents. Also, this study utilizes wastes from Dicentrarchus labrax grown in Ifremer's recycled waters station. The first step shows the particularities linked to recycled water farming effluents. They are characterized by low particle and organic substance concentrations as well as strong dissolved inorganic nitrogen (DIN) and phosphorus (DIP) concentrations. Furthermore, nitrogen is mainly...
Tipo: Text
Palavras-chave: Fish; High rate algal pond; Aquaculture; Alga; Water treatment; Recirculating effluents.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/these-1748.pdf

Rapport de mission AQUANET Forum, Fredericton, New Brunswick, Canada, 16- 18 juin 2003 &amp; visite à la station biologique de St Andrews, New Brunswick, Canada, 19 juin 2003
Provedor de dados: 5
Autores: Mazurie, Joseph.
Among the Excellence Centers developed to federate the Canadian research, Aquanet deals with marine and freshwater aquaculture. An interdisciplinary science forum was held at Fredericton, New Brunswick, Canada, in order to analyse the state of the fish and shellfish aquaculture sector and propose orientations for the future researches. Around 30 Canadian scientists and professionnals (a Norvegian and a French scientist invited) attended the meeting. A visit at the biological station and Huntsman marine center at Saint-Andrews, New Brunswick, concluded the mission
Tipo: Text
Palavras-chave: Canada; Nouveau Brunswick; Pisciculture; Conchyliculture; Aquaculture; Programmation Recherche; Aquanet; Canada; New Brunswick; Fish; Shellfish; Aquaculture; Research; Aquanet.
Ano: 2003
URL: https://archimer.ifremer.fr/doc/00681/79316/81824.pdf

Recherche et élimination des facteurs inhibiteurs de croissance dans les élevages piscicoles en circuit fermé
Provedor de dados: 5
Autores: Leonard, Noemie.
Recirculation of the water of fish rearing systems requires a biological treatment based on the nitrifying activity of autotrophic bacteria. In parallel heterotrophic bacterial populations utilise the organic substrate, produced by the fish, to grow. Opposite to the autotrophic populations, the heterotrophic bacteria (1) have a quick growth and (2) might contain fish pathogenic strains. The main aim was to characterise the heterotrophic bacteria populations ?.nd to understand (1) which parameters do control the dynamics of their populations and (2) their influence on the quality of the recirculating water. In a rearing system, the heterotrophic bacterial populations are stable in number and in genus, for a given operating mode. The bacteria are either...
Tipo: Text
Palavras-chave: Carbon; Gills; Bacterium; Humics substances; Fish; Ozone; Aquiculture; Carbone; Branchies; Bacterie; Substances humiques; Poisson; Ozone; Aquaculture.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/these-1728.pdf

AMP-deaminase in elasmobranch fish: A comparative histochemical and enzymatic study
Provedor de dados: 5
Autores: Thebault, Marie-t; Izem, Lahoucine; Leroy, Jean Paul; Gobin, Eric; Charrier, Gregory; Raffin, Jean-paul.
AMP-deaminase activity was measured in white muscle from a wide range of fish, including one cyclostome, 13 chondrosteans, and one teleost to elucidate the pattern of the AMP-deaminase activity in white muscle of fish. Compared to a mammalian (rat) muscle extract, low enzyme activities are found in the cyclostome and two elasmobranchs from two families (Scyliorhinidae, Hexanchidae). In contrast, higher AMP-deaminase activities, similar to mammals, are expressed in Squalidae, all families of skates, Chimaeridae and in the teleostean fish. We then compared AMP-deaminase activities in red and white muscles from two representative elasmobranch fish, the dogfish (Scyliorhinus canicula) and the thornback ray (Raja clavata). The fibre type composition and...
Tipo: Text
Palavras-chave: White fibres; Red fibres; Muscle; Histology; Fish; Evolution; Elasmobranch; AMP deaminase.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-635.pdf

Spatial variability of Chondrichthyes in the northern Mediterranean
Provedor de dados: 5
Autores: Follesa, Maria C.; Marongiu, Martina F.; Zupa, Walter; Bellodi, Andrea; Cau, Alessandro; Cannas, Rita; Colloca, Francesco; Djurovic, Mirko; Isajlovic, Igor; Jadaud, Angelique; Manfredi, Chiara; Mulas, Antonello; Peristeraki, Panagiota; Porcu, Cristina; Ramirez-amaro, Sergio; Salmeron Jimenez, Francisca; Serena, Fabrizio; Sion, Letizia; Thasitis, Ioannis; Cau, Angelo; Carbonara, Pierluigi.
Thanks to the availability of the MEDITS survey data, a standardized picture of the occurrence and abundance of demersal Chondrichthyes in the northern Mediterranean has been obtained. During the spring-summer period between 2012 and 2015, 41 Chondrichthyes, including 18 sharks (5 orders and 11 families). 22 batoids (3 orders and 4 families) and 1 chimaera, were detected from several geographical sub-areas (GSAs) established by the General Fisheries Commission for the Mediterranean. Batoids had a preferential distribution on the continental shelf (10-200 m depth). while shark species were more frequent on the slope (200-800 m depth). Only three species, the Carcharhiniformes Galeus melastomus and Scyliorhinus canicida and the Torpediniformes Torpedo...
Tipo: Text
Palavras-chave: Fish; Chondrichthyes; Bottom trawl surveys; Distribution; Abundance; Mediterranean.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00600/71220/69591.pdf

Effets directs et indirects de la pêche sur des groupes trophiques de poissons démersaux, définis par une approche écomorphologique
Provedor de dados: 5
Autores: Reecht, Yves.
Functional groups dynamics in marine communities help understanding how perturbations impact the functioning of an ecosystem. It is notably expected that functional groups respond differently to fishing pressure owing to their direct exposure to fishing and interactions between groups (indirect effects). A method was developed, based on an ecomorphological approach focusing on predation functions, to define size- and taxonomy-driven functional groups in demersal fish communities from the Celtic Sea and the North Sea. Eleven functional traits were used to define 12 functional groups in Celtic Sea (based on measurements on 930 individuals from 33 species) and seven groups in North Sea (710 individuals from 22 species). In the Celtic Sea, the functional...
Tipo: Text
Palavras-chave: Fonctions trophiques; Prédation; Écomorphologie; Groupes fonctionnels; Effets de la pêche; Approche écosystémique; Poissons; Communautés démersales; Trophic functions; Predation; Ecomorphology; Functional groups; Fishing effects; Ecosystem approach; Fish; Demersal communities.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00006/11687/8359.pdf

Cloning, Tissue Expression Analysis, and Functional Characterization of Two Δ6-Desaturase Variants of Sea Bass (Dicentrarchus labrax L.)
Provedor de dados: 5
Autores: Santigosa, Ester; Geay, Florian; Tonon, Thierry; Le Delliou, Herve; Kuhl, Heiner; Reinhardt, Richard; Corcos, Laurent; Cahu, Chantal; Zambonino, Jose-luis; Mazurais, David.
Fish are the main source of the n-3 highly unsaturated fatty acids, which are crucial for human health. Their synthesis from C18 precursors is mediated by desaturases and elongases, but the activity of these enzymes has not been conclusively established in marine fish species. This study reports the cloning, tissue expression, and functional characterization of a sea bass (Dicentrarchus labrax L.) Δ6-desaturase and one of its splicing variants. Two cDNAs with open reading frames of 1,346 and 1,354 bp were cloned and named D6D and D6D-V, respectively. Both deduced protein sequences (445 and 387 amino acids, respectively) contained two transmembrane regions and the N-terminal cytochrome b5 domain with the HPGG motif characteristic of microsomal desaturases....
Tipo: Text
Palavras-chave: Sea bass (Dicentrarchus labrax); Desaturase; HUFA biosynthesis; Fish; EPA.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00023/13470/10477.pdf

Effects of high pressure on texture and microstructure of sea bass (Dicentrarchus labrax L.) fillets
Provedor de dados: 5
Autores: Cheret, Romuald; Chapleau, Nicolas; Delbarre Ladrat, Christine; Verrez-bagnis, Veronique; De Lamballerie, Marie.
High pressure is an innovative non-thermal food-preservation technology. We studied the effect of high-pressure treatment up-to 500 MPa for 5 min on physical characteristics of sea bass fillets after 0, 7, and 14 d of refrigerated storage.. Color results exhibited an increase of lightness and a slight change of hue, which might be imperceptible in cooked fish. High-pressure treatment induced a decrease of exudation and water-holding capacity Pressure treatment above 300 MPa provoked higher fish hardness after storage than in untreated sample, proving the ability of high pressure to improve textural, quality of chilled, stored fish fillet. These assessments were corroborated with microstructure observations. We showed that high-pressure treatment at 500 MPa...
Tipo: Text
Palavras-chave: Preservation; Microstructure; Texture profile analysis; High pressure; Fish.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-734.pdf

Link between exposure of fish (Solea solea) to PAHs and metabolites: Application to the "Erika" oil spill
Provedor de dados: 5
Autores: Budzinski, Hélène; Mazeas, Olivier; Tronczynski, Jacek; Desaunay, Yves; Bocquene, Gilles; Claireaux, Guy.
An analytical method consisting in enzymatic deconjugation, solid phase extraction and purification, and gas chromatography/mass spectrometry analysis after derivatization was used in this study to quantify Polycyclic Aromatic Hydrocarbon (PAH) metabolites in the bile of fish. The method has been applied in a laboratory experiment studying the fate of pyrene in basin containing soles. This study has allowed the identification of 1-hydroxypyrene as the single metabolite in bile after enzymatic deconjugation. In a second time, 1-hydroxypyrene has been used as a biomarker of exposure in the case of the "Erika" oil spill. This biomonitoring was successful in demonstrating the exposure of juvenile soles to PAHs present in the "Erika" fuel oil.
Tipo: Text
Palavras-chave: Gas chromatography mass spectrometry; Fish; PAH metabolites.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-404.pdf

Synthèse française des procédures d'estimation d'âge
Provedor de dados: 5
Autores: Mahe, Kelig; Bellail, Robert; Dufour, Jean-louis; Boiron-leroy, Anne; Dimeet, Joel; Duhamel, Erwan; Elleboode, Romain; Felix, Jerome; Grellier, Patrick; Huet, Jerome; Labastie, Jacques; Le Roy, Didier; Lizaud, Oceann; Manten, Marie-line; Martin, Stephane; Metral, Luisa; Nedelec, Daniel; Verin, Yves; Badts, Vincent.
This document presents all the techniques used in routine by Ifremer to estimate the age of fish from the calcified piece. The procedure for estimating age describes each technical stage from the taking of the calcified piece through to the supplying of key sizes/ages to the European work groups. This procedure is specific to each species and even each population of fish.
Tipo: Text
Palavras-chave: Poisson; TNPC; Préparation; Procédure; Age; Ecaille; Illicium; Otolithe; Sclérochronologie; Fish; TNPC; Preparation; Procedure; Age; Scale; Illicium; Otolith; Sclerochronology.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00000/7294/rapport-7294.pdf

A multibiomarker approach on the Atlantic tomcod (Microgadus tomcod) in the St. Lawrence Estuary
Provedor de dados: 5
Autores: Dupuy, Celie; Couillard, Catherine M.; Laroche, Jean; Nellis, Pierre; Brousseau, Pauline; Fournier, Michel.
A multibiomarker approach was developed on juvenile Atlantic tomcod (Microgadus tomcod) to evaluate the pertinence of this approach for low-cost screening assessment of the environmental quality of various coastal sites within estuaries. Several biometric indices and biomarkers (ethoxyresorufin-O-deethylase (EROD) activity, metallothionein concentration, and immune responses) were investigated on immature and maturing tomcods (a parts per thousand currency sign31 months) collected in four environmentally contrasted sites in the St. Lawrence Estuary (SLE). Simultaneous examination of various age classes provides the opportunity to detect short-term responses in sensitive young-of-the-year fish (e.g., EROD induction) and longer-time effects associated with...
Tipo: Text
Palavras-chave: Biometric indexes; EROD; Metallothionein; Immunotoxicity; Pollution; Fish.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00125/23578/21501.pdf

Heavy metal content and biotransformation enzymes in two fish species from the NW Mediterranean
Provedor de dados: 5
Autores: Romeo, Michele; Mathieu, A; Gnassia-barelli, M; Romana, Louis-alexandre; Lafaurie, M.
Trace metal concentrations (Cd, Cu, Fe, Zn) and total-calcium content were measured in the gills of 2 marine fish (painted comber Serranus cabrilla and striped mullet Mullus barbatus) sampled in different stations in the cove of Cortiou, where the outlet collecting the waste waters of Marseille, France, is situated (NW Mediterranean). In parallel, the activity rates of some phase I enzymes (ethoxyresorufin-0-dealkylase, EROD; pentoxyresorufin-0-dealkylase, PROD) and phase II enzymes (glutathione-S-transferase, GST) were determined in the livers of both species of fish. Cadmium and copper concentrations were highly variable for both species. Two sampling stations situated in the dispersion area of waste waters seemed affected by chemical pollution. At these...
Tipo: Text
Palavras-chave: Heavy metal; Biotransformation enzymes; Fish.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00196/30736/29393.pdf

Preliminary biological characterization of the Saldanha hydrothermal field at the Mid-Atlantic Ridge (36 degrees 34 ' N, 32 degrees 26 ' W, 2200 m)
Provedor de dados: 5
Autores: Biscoito, M; Almeida, A; Segonzac, Michel.
A preliminary description of the biology of the Saldanha hydrothermal field in the Mid-Atlantic Ridge (36 degrees 34'N, 32 degrees 26'W, 2200 m) is given, based on direct observation, video images and samples. Venting occurs mainly in a diffuse way through sediment, but hydrothermal fluid discharges are visible through centimeter-long orifices, scattered on the sediment, over an area of approximately 400 m(2), at depths between 2,200 and 2,220 metres. Emitted fluids are transparent, with a temperature of 7-9 degrees C. An almost complete absence of macro- and megafauna around the venting orifices was found. The only vent invertebrate identified was the gastropod Phymorhynchus sp., with only two juvenile specimens caught. A careful examination of the images...
Tipo: Text
Palavras-chave: New records; Antimora; Acanthonus; Fish; Sponge; Bathyal megafauna; Gastropoda; Fauna assemblage; Mid Atlantic Ridge; Hydrothermal vents.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-3610.pdf

The role of microalgae in aquaculture: situation and trends
Provedor de dados: 5
Autores: Muller-feuga, Arnaud.
Algae are utilized diversely in aquaculture, but their main applications are related to nutrition. They are used in toto, as a sole component or as a food additive to supply basic nutrients, color the flesh of salmonids or for other biological activities. The need for nutritional sources safer than traditional animal products has renewed interest in plants in general and algae in particular. This report deals principally with the nutritional role of microalgae in aquaculture.The larvae of molluscs, echinoderms and crustaceans as well as the live prey of some fish larvae feed on microalgae. Though attempts have been made to substitute inert particles for these micro-organisms which are difficult to produce, concentrate and store, only shrimp and live prey...
Tipo: Text
Palavras-chave: Shrimp; Post larvae; Phytoplankton; Molluscs; Microalgae; Hatchery; Fish; Aquaculture.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-497.pdf

Trace metal concentrations in the muscle of seven marine species: Comparison between the Gulf of Lions (North-West Mediterranean Sea) and the Bay of Biscay (North-East Atlantic Ocean)
Provedor de dados: 5
Autores: Mille, Tiphaine; Cresson, Pierre; Chouvelon, Tiphaine; Bustamante, Paco; Brach-papa, Christophe; Bruzac, Sandrine; Rozuel, Emmanuelle; Bouchoucha, Marc.
Concentrations of 6 trace metals (Ag, Cd, Cu, Ni, Pb, Zn) in the muscle of 2 sharks (Galeus melastomus and Scyliorhinus canicula), 4 teleosts (Helicolenus dactylopterus, Lepidorhombus boscii, Micromesistius poutassou and Phycis blennoides) and 1 crustacean (Nephrops norvegicus) were compared between the Bay of Biscay (Atlantic Ocean) and the Gulf of Lions (Mediterranean Sea). Although average concentrations and the trace element pollution index were generally higher in the Gulf of Lions, significant differences between the two ecosystems were only found for Zn for Helicolenus dactylopterus, and for Ag and Cu for the crustacean N. norvegicus. Moreover, some relationships between trophic level or size and metal concentrations were found for these two...
Tipo: Text
Palavras-chave: Inorganic elements; Contamination; Bioaccumulation; Fish; Shark; Norway lobster.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00448/55958/57497.pdf

Genetical improvement of marine fish and shellfish : a french perspective
Provedor de dados: 5
Autores: Boudry, Pierre; Chatain, Beatrice; Naciri-graven, Yamama; Lemaire, Christophe; Gerard, Andre.
In France, marine fish and shellfish farming is based mainly on the breeding of wild species, whose natural populations are traditionally exploited. Research programs are conducted by IFREMER, in co-operation with INRA and Universities. French research programs for the genetical improvement of marine fish and shellfish concern primarily seabass (Dicentrarchus labrax) and oysters (Ostrea edulis and Crassostrea gigas). The following programs are developed:  •The knowledge of wild and farmed populations. The most recent prodjects involve the highly variable microsatellite markers. Seven markers are presently available for seabass and the work is now initiated on turbot (Scophthalmus maximus). In molluscs, microsatellite markers have been developed for the...
Tipo: Text
Palavras-chave: Selection; Triploid; Shellfish; Fish; Genetic.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/acte-3206.pdf

The time course of fish oil wash-out follows a simple dilution model in gilthead sea bream (Sparus aurata L.) fed graded levels of vegetable oils
Provedor de dados: 5
Autores: Benedito-palos, Laura; Navarro, Juan C.; Bermejo-nogales, Azucena; Saera-vila, Alfonso; Kaushik, Sadasivam; Perez-sanchez, Jaume.
The aim of the study was to determine whether changes in the tissue fatty acid (FA) profile follows a simple test dilution model after changing the dietary oil sources in gilthead sea bream. A 14-month trial was conducted with juvenile fish of 18 g initial body weight fed either a fish oil-based diet (FO diet) or vegetable oils replacing 33% (33VO) and 66% (66VO) of fish oil. The trial included 3 months feeding a fish oil finishing diet to follow the restoration of the FA profile with the FO diet. Fish oil replacement with/without a finishing phase of fish oil re-feeding did not affect growth and all groups reached 520-531 g body weight. Changes in body composition with weight gain did not modify the FA profile of fish continuously fed FO, 33VO or 66VO...
Tipo: Text
Palavras-chave: Plant proteins; Fatty acids; Flesh; Growth; Fish.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6318.pdf

Composition of the fish fauna in a tropical estuary: the ecological guild approach
Provedor de dados: 5
Autores: Ferreira, Valdimere; Le Loc'H, Francois; Menard, Frederic; Fredou, Thierry; Fredou, Flavia L.
Ecological guilds have been widely applied for understanding the structure and functioning of aquatic ecosystems. This study describes the composition and the spatio-temporal changes in the structure of the fish fauna and the movements between the estuary and the coast of a tropical estuary, the Itapissuma/Itamaraca Complex (IIC) in northeastern Brazil. Fish specimens were collected during the dry and rainy seasons in 2013 and 2014. A total of 141 species of 34 families were recorded. Almost half of the species (66 species, 47%) were exclusive to the estuary and 50 species (35%) to the coast; 25 (18%) were common to both environments. Marine species were dominant in both richness and biomass as they explore the environment during part of their life cycle,...
Tipo: Text
Palavras-chave: Fish; Functional attribute; Habitat; Pernambuco; Spatial-temporal distribution.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00505/61650/65569.pdf

Fiches d’aide à l’identification. Poissons et céphalopodes de Manche et de mer du Nord
Provedor de dados: 5
Autores: Garren, Francois; Verin, Yves; Dufour, Jean-louis; Mahe, Kelig; Le Roy, Didier; Rostiaux, Emilie.
This document present identification fact sheets of fishes and cephalopods species frequently captured during scientific surveys in the English Channel and the North Sea. Simple and concise description of the morphological criteria enable a fast and easy discrimination between species that may be confused.
Tipo: Text
Palavras-chave: Identification; Poisson; Céphalopode; Manche; Mer du Nord; Identification; Fish; Cephalopod; English Channel; North Sea.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00326/43758/43302.pdf

Are red mullet efficient as bio-indicators of mercury contamination? A case study from the French Mediterranean
Provedor de dados: 5
Autores: Cresson, Pierre; Bouchoucha, Marc; Miralles, F.; Elleboode, Romain; Mahe, Kelig; Marusczak, Nicolas; Thebault, Herve; Cossa, Daniel.
Mercury (Hg) is one of the main chemicals currently altering Mediterranean ecosystems. Red mullet (Mullus barbatus and M. surmuletus) have been widely used as quantitative bio-indicators of chemical contamination. In this study, we reassess the ability of these species to be used as efficient bio-indicators of Hg contamination by monitoring during 18 months Hg concentrations in muscle tissue of mullet sampled from 5 French Mediterranean coastal areas. Mean concentrations ranged between 0.23 and 0.78 μg g−1 dry mass for both species. Values were consistent with expected contamination patterns of all sites except Corsica. Results confirmed that red mullets are efficient bio-indicators of Hg contamination. Nevertheless, the observed variability in Hg...
Tipo: Text
Palavras-chave: Mercury; Bio-indicator; Fish; Mullus spp.; Mediterranean.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00244/35514/34083.pdf

Towards an Autonomous Pelagic Observatory: Experiences from Monitoring Fish Communities around Drifting FADs
Provedor de dados: 5
Autores: Brehmer, Patrice; Sancho, Gorka; Trygonis, Vasilis; Itano, David; Dalen, John; Fuchs, Ariel; Faraj, Abdelmalek; Taquet, Marc.
This work presents a methodological synthesis for the in situ monitoring of fish aggregating devices (FADs) using a combination of optical, echosounder and SCUBA observations conducted in the vicinity of drifting FADs. The acoustic methods allowed, according to the devices used, the description of the spatial organisation and dynamics of biotic scattering layers, individual fishes, schools, shoals and mammals, while visual, photographic and video observations permitted species identification within a range of 0 to ~ 25 m. Based on these results, we elaborate on the interest to combine acoustic and visual methods, and present an autonomous instrumented drifting buoy for remotely monitoring fish diversity and abundance in the pelagic ecosystems. The...
Tipo: Text
Palavras-chave: Optical; Census; Acoustics; Buoy; Seaorbiter; Biomonitoring; Conservation; Environmental monitoring; Fish; Pelagic.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00461/57252/59265.pdf

Biorheological properties of intertidal organic fluff on mud flats and its modification of gill ventilation in buried sole Solea solea
Provedor de dados: 5
Autores: Jenkinson, Ian; Claireaux, Guy; Gentien, Patrick.
Intertidal mudflats are important nursery grounds for juveniles of many fish species. However, they are being used increasingly to farm bivalve molluscs, which produce large amounts of organic "fluff", overlying the mud. Fish such as sole, Solea solea, hide in this fluff from potential predators, but the energy consumed by respiring the fluff may be high due to its biorheological properties. We developed an ichthyoviscometer. It incorporates a freshly killed fish as a viscometer, and we developed it to measure the rheological properties of fluids and suspensions, including fluff, at scales encompassing those in gill ventilation. We have shown that the rheological behaviour of fluff is close to that of a gel with a yield stress strongly dependent on...
Tipo: Text
Palavras-chave: Fish; Organic matter; Gill ventilation; Biorheology; Organic fluff; Mud flats.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2219.pdf

Zebrafish      Danio rerio     shows behavioural cross‐context consistency at larval and juvenile stages but no consistency between stages
Provedor de dados: 5
Autores: Alfonso, Sebastien; Peyrafort, Manon; Cousin, Xavier; Bégout, Marie-laure.
Coping style is defined as a set of individual physiological and behavioural characteristics consistent across time and context. In the zebrafish Danio rerio, as well as in many other animals, several covariations have been established between behavioural, physiological, and molecular responses. However, not many studies have addressed the consistency of behavioural responses over time starting at the larval stage. Therefore, we aimed to improve our understanding of behavioural consistency across context and over time in zebrafish from the larval to juvenile stages. We conducted two distinct experiments: a larval stage experiment (from 8 to 21 days post fertilization, dpf) and a juvenile stage experiment (from 21 to 60 dpf). On one hand, the larval...
Tipo: Text
Palavras-chave: Coping style; Fish; Personality; Vital staining.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00614/72598/71598.pdf

Proteins and proteolytic activity changes during refrigerated storage in sea bass (Dicentrarchus labrax L.) muscle after high-pressure treatment
Provedor de dados: 5
Autores: Cheret, Romuald; Hernandez Andres, Aránzazu; Delbarre Ladrat, Christine; De Lamballerie, Marie; Verrez-bagnis, Veronique.
Contrary to other preservation methods like thermal treatments, high pressure can destroy microorganisms without affecting the nutritional quality, color, or food texture. The firm texture of fish flesh is an important quality parameter. During the refrigerated storage, the tissue becomes softer and the muscle is deteriorated by different proteases. The aim of this study was to study the modification of the fish muscle proteins after high-pressure treatment during the refrigerated storage and to evaluate the effect of high-pressure treatment level on the post-mortem protein changes and enzyme activities. The calpain activity decreased with the high-pressure treatment and evolved differently during the refrigerated storage, depending on the level of...
Tipo: Text
Palavras-chave: Cathepsins; Calpains; Sarcoplasmic proteins; Myofibrillar proteins; Post mortem denaturation; High pressure; Fish.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1708.pdf

Echantillonnage des debarquements en criee pour l'etude des structures demographiques. Sources de variabilite et optimisation du plan de sondage
Provedor de dados: 5
Autores: Chevalier, Robert.
The author analyzed problems encountered in selecting a sampling design for estimating the age structures of landings. He studied the effects of various factors of variability on the optimal values of the sampling rates. The method used for this analysis could be employed to define an optimal sampling strategy to assess the age structures of landings from fish markets.
Tipo: Text
Palavras-chave: Statistical sampling; Fish; Population structure; Age composition; Landing statistics.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/publication-1772.pdf

Variability in natural behaviour, and observed reactions to an ROV, by mid-slope fish species
Provedor de dados: 5
Autores: Lorance, Pascal; Trenkel, Verena.
The behaviour of eight large benthopelagic fish taxa was analysed using video records collected with an ROV on the mid-slope of the Bay of Biscay. The studied species were roundnose grenadier (Coryphaenoides rupestris), orange roughy (Hoplostethus atlanticus), deep-sea scorpionfish (Trachyscorpia cristulata echinata), and black scabbardfish (Aphanopus carbo), as well as individuals belonging to the families Alepocephalidae, Chimaeridae, and Scyliorhinidae, and to the order Squaliformes. Some of the observed fish were grouped at the family taxonomical level due to visual identification to species being unreliable. Assumed natural (undisturbed) behaviour was categorised in terms of (i) body position with respect to the bottom sea floor, (ii) locomotion and...
Tipo: Text
Palavras-chave: ROV; Life strategies; Fish; Diversity; Continental slope; Behaviour; Bay of Biscay.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1228.pdf

Correlations between dioxin-like and indicators PCBs: Potential consequences for environmental studies involving fish or sediment
Provedor de dados: 5
Autores: Babut, M.; Miege, C.; Villeneuve, B.; Abarnou, Alain; Duchemin, J.; Marchand, P.; Narbonne, J. F.
Among the numerous PCB congeners, most of the dioxin-like PCBs (DL-PCBs) need to be characterized by hyphenated techniques. It has been shown in several instances that these congeners are well related to the total PCB content in fish. We examined datasets collected mainly in France, on freshwater and marine fish and sediments. A statistical model linking DL- and indicator PCBs was developed for a dataset composed of freshwater fishes, and proved to predict well DL-PCBs from indicator PCBs in all other fish sets, including marine ones. Type II error rates remained low in almost all fish sets. A similar correlation was observed in sediments. Non-dioxin-like PCBs elicit various adverse effects and represent 95% of the total PCBs. A European guideline for them...
Tipo: Text
Palavras-chave: Sediment; Fish; Correlations; Indicator PCB; Dioxin like PCB.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6979.pdf

Is avoiding full sib matings really worthwhile in a breeding program?
Provedor de dados: 5
Autores: Dupont-nivet, Mathilde; Vandeputte, Marc.
Stochastic simulations were used to compare genetic progress and inbreeding depending on whether full sib matings were allowed or not when applying individual selection. Fifteen selection cycles were considered, using a single pair mating design. Two levels of heritability (h(2)) were studied (0.1; 0.5) as well as four different proportions of selected animals (2, 5, 10 and 20%), four population sizes (1000, 2,000, 4,000 and 10,000 candidates) and two levels of inbreeding depression (0 and 5% decrease of phenotype for 10% increase in inbreeding). Fifty replicates were generated for each set of parameters. The simulations revealed that avoiding full sib matings became less and less relevant as population size and proportion of selected animals increased and...
Tipo: Text
Palavras-chave: Selection; Sib mating; Inbreeding; Genetic variability; Stochastic simulations; Fish.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00035/14587/11952.pdf

Méthode de dosage du cadmium, du cuivre, du plomb et du zinc dans la chair de poissons
Provedor de dados: 5
Autores: Auger, Dominique.
An analytical technique for cadmium, copper, lead and zinc determination in fish tissue used in monitoring programmes is described. Atomic absorption spectrophotometry on nitric digested samples is performed.
Tipo: Text
Palavras-chave: Cadmium; Cuivre; Poisson; Plomb; Zinc; Analyse; Cadmium; Copper; Lead; Zinc; Fish; Determination.
Ano: 1989
URL: https://archimer.ifremer.fr/doc/00489/60059/63343.pdf

Etat de santé des habitats et peuplements de poissons des atolls d’Entrecasteaux, zone inscrite au Patrimoine Mondial de l’Humanité et Parc naturel de la mer de Corail. Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: 5
Autores: Schohn, Thomas; Pelletier, Dominique; Carpentier, Liliane.
The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. Observation relies on remote unbaited underwater video, using the STAVIRO rotating technique (Pelletier et al. 2012).  This survey was conducted in 2015 in Entrecasteaux Reefs, both located within the Coral Sea Natural Park, and part of World Heritage site. 109 STAVIRO were validated in 9 days, covering the reefs and geomorphological units in the area. Images were analyzed to characterize the habitat surrounding each station, and fishes based on a list of 565 species (Pelletier et al. 2016).  28 indicators were computed and represented on maps (Sextant server). Indicators were analyzed using the...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Aire Marine Protégée; Patrimoine mondial; Parc de la mer de Corail; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map; Sextant; PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51760/52357.pdf

Effect of temperature, volume of ova batches, and addition of a diluent, an antibiotic, oxygen and a protein inhibitor on short-term storage capacities of turbot, Psetta maxima, ova
Provedor de dados: 5
Autores: Suquet, Marc; Chereguini, Olvido; Omnes, Marie-helene; Rasines, Inmaculada; Normant, Yvon; Souto, Isabel; Quemener, Loic.
The effect of different parameters on shea-term storage capacity of turbot ova was assessed over a 45-h period after ova collection for fertilization rates and over a 9-h period after ova collection for hatching rates. Increasing the volume of ova sampling from 0.5 to 2.5 mt, as well as adding an antibiotic-antimicotic solution or oxygen did not significantly change the storage capacity of ova. Regarding the hatching rates, a higher storage ability was recorded at 8 and 13 degrees C, compared to 3 degrees C. The mean composition of the ovarian fluid was determined (n = 57 spawns). Use of a diluent mimicking the ovarian fluid significantly decreased the storage ability as assessed by the fertilization rates but did not modify the hatching rates. Diluting...
Tipo: Text
Palavras-chave: Psetta maxima; Turbot; Calcium; Ovarian fluid; Short term storage; Ova; Fish; Psetta maxima; Turbot; Calcium; Liquide ovarien; Conservation à court terme; Ovules; Poisson.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-857.pdf

Testing Protein Digestibility in Red Grouper Epinephelus Morio using In Vitro and In Vivo Methods
Provedor de dados: 5
Autores: Silva, A. F.; Escalante, Karla; Alvarez-gonzalez, C. A.; Guerrero-olazaran, M.; Cuzon, Gerard; Gaxiola, Gabriela.
The digestibility of pre-selected ingredients was evaluated for Epinephelus morio using pH-stat and multi-enzyme extract (stomach, intestine, and ceca). The degree of hydrolysis (DH) was tested with acid and alkaline proteases using crustacean meals, squid meal, fish protein concentrate (FPC), fish meal, dried whey, as well as canola paste (w/or w/o phytase), soybean meal (w/or w/o phytase), soyprotein concentrate (SPC), and wheat gluten. SPC produced DH values between 3.6-4.1%, obtained from the three different parts of the digestive tract. Canola paste produced high DH in the stomach by adding phytase to 0.8 and 2% feed. This process was repeated under alkaline conditions for DH, with 0.6-2.6% in the pyloric ceca, and 1-2.2% in the intestine. The DH from...
Tipo: Text
Palavras-chave: ADC; In vitro digestibility; Enzymes; Fish; Feedstuffs.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00248/35930/80189.pdf

Traitement par lagunage a haut rendement algal (LHRA) des effluents piscicoles marins recycles: évaluation chimique et écotoxicologique
Provedor de dados: 5
Autores: Deviller, Genevieve.
World aquaculture is a fast growing activity and the control of its waste becomes a key issue. Compared to traditional systems, recirculating systems allow to reduce replacement water and waste volumes. Nevertheless their effluents are more concentrated in dissolved nutrients (nitrate, phosphate). The high rate algae pond (HRAP) is one of the possible treatment technique to remove those nutrients. During this work, three rearing systems: one recycled, one recycled with HRAP and one open as a standard, were operated for one year to assess the impact of: (1) the reuse of treated effluent on survival, growth and nutrition of sea bass (2) the rearing system on fish health using multibiomarkers and trace metals accumulation responses and (3) best conditions for...
Tipo: Text
Palavras-chave: Aquaculture; Fish; Growth; Metals; Biomarker; Water treatment; Recirculating effluent; High rate algal pond; Aquaculture; Poisson; Croissance; Métaux; Biomarqueur; Epuration; Effluent recyclé; Lagunage à haut rendement algal.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2004/these-163.pdf

Introduction: status and future of modelling physical-biological interactions during the early life of fishes
Provedor de dados: 5
Autores: Gallego, A; North, E; Petitgas, Pierre.
Modelling physical-biological interactions in the early life of fish is becoming an integral part of theoretical and applied marine ecology. A workshop on 'Advancements in modelling physical-biological interactions in fish early-life history' (WKAMF) was held in April 2006 to review recent developments and identify future research directions. Here we provide an overview of the information presented at WKAMF (some of which is published in this Theme Section), discussions that took place at the workshop, and the authors' perspectives as workshop co-Chairs. The major themes identified at the workshop were the need for enhanced model validation and sensitivity methods and improved understanding of physical and biological processes. Using the appropriate level...
Tipo: Text
Palavras-chave: Workshop; Individual based methods; Larvae; Eggs; Fish; Biophysical modelling.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-4311.pdf

Caractérisation du comportement chimique du complexe otosac-otolithe et réaction à des perturbations induites.
Provedor de dados: 5
Autores: Edeyer, Anaick.
Teleost fish have the capacity to record in their otoliths, calcareous concretions located in the inner ear, the principal events (environmental and physiological) which punctuate their life. Otolith is made of CaC03 deposits on a protein matrix according to a circadian rhythm. Due to the quasi irreversibility of this process, otoliths can be compared to biological archives largely used to apprehend the fish ecology.   The otolith bathes in the endolymph, a medium in which all the precursors of otolith formation forward. The endolymph chemical analysis revealed a heterogeneity of its principal components (proteins, total C02 and total Ca) which origin lies in the non uniform spatial distribution of the ionocytes in the saccular epithelium. Thus, in...
Tipo: Text
Palavras-chave: Environmental disturbances; Microchemistry; Biomineralisation; Psetta maxima; Fish; Calcification; Endolymph; Otolith; Perturbations environnementales; Microchimie; Biominéralisation; Psetta maxima; Poisson; Calcification; Endolymphe; Otolithe.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/rapport-1123.pdf

Temporal partitioning of diurnal behavioural patterns of Coris julis and Diplodus vulgaris (Actinopterygii: Perciformes) in Mediterranean coralligenous habitats.
Provedor de dados: 5
Autores: Witkowski, Fanny; Vion, Aurelie; Bouchoucha, Marc.
Background. There is need for more information on behavioural rhythms of fishes in relation to their habitat use in few or not previously monitored areas, such as coralligenous habitats. Some studies have compiled inventories of observable fish species in this habitat, but no studies have been performed on the temporal patterning of fish behaviour, especially at the scale of the day. The presently reported study aims at providing knowledge on finescale fluctuations of abundances and behaviour of two fish species in coralligenous habitats throughout the diurnal period. Materials and methods. Fish fauna was filmed hourly, for several days, from dusk to dawn, with autonomous, programmable, and rotating video systems. Diurnal variations in abundances per...
Tipo: Text
Palavras-chave: Activity rhythms; Ethology; Fish; Bioherm; Underwater video.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00359/47038/46944.pdf

Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands
Provedor de dados: 5
Autores: Jaffal, Ali; Betoulle, Stephane; Biagianti-risbourg, Sylvie; Terreau, Alexandre; Sanchez, Wilfried; Paris-palacios, Severine.
The Kerguelen Islands include various species of freshwater fish such as brown trout (Salmo trutta). These trout are among the most isolated from direct anthropogenic impact worldwide. This study was designed to analyse cadmium (Cd) and copper (Cu) concentrations in the liver of Kerguelen brown trout, and to assess the possible impacts of these metals on hepatic histopathology and oxidative stress parameters (superoxide dismutase and catalase activity and glutathione levels). Trout were caught in the Chateau River, the Studer Lakes and the Ferme Pond, close to the scientific station of the Kerguelen Islands, corresponding to three morphotypes (river, lake and station). Kerguelen trouts' hepatic concentrations of Cd and Cur were similar to those reported in...
Tipo: Text
Palavras-chave: Brown trout; Freshwater; Fish; Sub-Antarctic; Liver; Biomarkers.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00499/61109/64571.pdf

Fish as bioindicators of brackish ecosystem health: integrating biomarker responses and target pollutant concentrations
Provedor de dados: 5
Autores: Corsi, I; Mariottini, M; Sensini, C; Lancini, L; Focardi, S.
Biological responses and contaminant levels in biological tissues were investigated in fish specimens of grass goby (Zosterisessor ophiocephalus) collected in spring 2000 in a moderately polluted brackish ecosystem, the Orbetello lagoon (southern coast of Tuscany, Italy). The complexity of harmful effects that contaminants may cause in fish over time was assessed. General condition indices (somatic liver index, and gonadal somatic index), cytochrome P450 enzymes, acetylcholinesterase activity and ovarian morphology were integrated with the content of organochlorines (OCs-hexachlorobenzene, DDTs and polychlorinated biphenyls) in liver and ovaries and p-nonylphenol (NP) and lower ethoxylate (NPE(1-2)) content in muscle and ovaries as well. Samples collected...
Tipo: Text
Palavras-chave: Biomarqueurs; Lagunes; Poissons; Histologie des ovaires; Organochlorés; Biomarkers; Lagoon; Fish; Ovarian histology; Organochlorines; Nonylphenols.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00322/43293/43028.pdf

A step toward the definition of ecological indicators of the impact of fishing on the fish assemblage of the Abore reef reserve (New Caledonia)
Provedor de dados: 5
Autores: Amand, Marion; Pelletier, Dominique; Ferrari, Jocelyne; Kulbicki, Michel.
Marine Protected Areas (MPA) are often contemplated as a tool for the sustainable management of exploited resources and ecosystem conservation. This paper proposes an approach to establish a statistical diagnostic of the effects of MPAs on fish assemblages, and define corresponding ecological indicators. This requires choosing relevant variables (abundance, diversity, demographic parameters..) and appropriate statistical methods. The study was based on data from the Abore reef Reserve in New Caledonia. Two sets of methods: 1-inferential linear models (ANOVA, GLM): 2- Partial Least Squares (PLS) methods of regression, were used to test the effects of this MPA. PLS enabled us to test simultaneously within a model, density, species richness, biomass and mean...
Tipo: Text
Palavras-chave: New Caledonia; PLS regression; Ecological indicators; Fishing impact; Coral reef; Fish; Marine Protected Areas.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-398.pdf

Comparing growth in surface and cave morphs of the species Astyanax mexicanus: insights from scales
Provedor de dados: 5
Autores: Simon, Victor; Elleboode, Romain; Mahe, Kelig; Legendre, Laurent; Ornelas-garcia, Patricia; Espinasa, Luis; Retaux, Sylvie.
Background Life in the darkness of caves is accompanied, throughout phyla, by striking phenotypic changes including the loss or severe reduction in eyes and pigmentation. On the other hand, cave animals have undergone constructive changes, thought to be adaptive, to survive in this extreme environment. The present study addresses the question of the evolution of growth in caves, taking advantage of the comparison between the river-dwelling and the cave-dwelling morphs of the Mexican tetra, Astyanax mexicanus. Results A sclerochronology approach was undertaken to document the growth of the species in these two very distinct habitats. Scales from 158 wild Astyanax mexicanus specimens were analyzed from three caves (Pachón, Tinaja and Subterráneo) and two...
Tipo: Text
Palavras-chave: Cave; Fish; Size; Age; Scales; Growth; Food; Comparative biology; Life history traits.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00412/52337/53124.pdf

Intraspecific individual variation of temperature tolerance associated with oxygen demand in the European sea bass (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Ozolina, Karlina; Shiels, Holly A.; Ollivier, Helene; Claireaux, Guy.
The European sea bass (Dicentrarchus labrax) is an economically important fish native to the Mediterranean and Northern Atlantic. Its complex life cycle involves many migrations through temperature gradients that affect the energetic demands of swimming. Previous studies have shown large intraspecific variation in swimming performance and temperature tolerance, which could include deleterious and advantageous traits under the evolutionary pressure of climate change. However, little is known of the underlying determinants of this individual variation. We investigated individual variation in temperature tolerance in 30 sea bass by exposing them to a warm temperature challenge test. The eight most temperature-tolerant and eight most temperature-sensitive fish...
Tipo: Text
Palavras-chave: Aerobic scope; Climate change; Fish; Heart; Individual variability; Swimming.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00337/44827/44369.pdf

Projected impacts of warming seas on commercially fished species at a biogeographic boundary of the European continental shelf
Provedor de dados: 5
Autores: Maltby, Katherine M.; Rutterford, Louise A.; Tinker, Jonathan; Genner, Martin J.; Simpson, Stephen D.; Punt, Andre.
Projecting the future effects of climate change on marine fished populations can help prepare the fishing industry and management systems for resulting ecological, social and economic changes. Generating projections using multiple climate scenarios can provide valuable insights for fisheries stakeholders regarding uncertainty arising from future climate data. Using a range of climate projections based on the Intergovernmental Panel on Climate Change A1B, RCP4.5 and RCP8.5 climate scenarios, we modelled abundance of eight commercially important bottom dwelling fish species across the Celtic Sea, English Channel and southern North Sea through the 21st century. This region spans a faunal boundary between cooler northern waters and warmer southern waters,...
Tipo: Text
Palavras-chave: Celtic Sea; Climate change; English Channel; Fish; Fisheries; North Sea; Regional projections; Uncertainty.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00643/75490/76341.pdf

In modelling effects of global warming, invalid assumptions lead to unrealistic projections
Provedor de dados: 5
Autores: Lefevre, Sjannie; Mckenzie, David J.; Nilsson, Goeran E.
Tipo: Text
Palavras-chave: Climate change; Fish; Growth; Metabolism; Modelling; Oxygen uptake; Scaling; Warming.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00426/53762/54697.pdf

Courantométrie du site d'élevage de salmonides en grande rade de Cherbourg
Provedor de dados: 5
Autores: Merceron, Michel; Gaffet, Jean-dominique.
Current recordings were performed near the middle of the great breakwater of Cherbourg ("Grande Digue", inner side) during two months of the 1993 summer. The data show that, in this site, the currents drive mostly westwards. They are driving eastwards only during the first half of flood. In the tidal cycle, there is only one current slack, at law tide. The most important velocities are observed during the high tides : 0.5 to 0.6 m.s-1• The fish net pens, which are located there, tend to speed up the undemeath currents and, thus, contribute to scatter the farm effluents. The temperature and salinity records are also displayed. _
Tipo: Text
Palavras-chave: Courant; Cage; Élevage; Poisson; Cherbourg; Current; Net pen; Farm; Fish; Cherbourg.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00082/19330/16924.pdf

Etat de santé des habitats et peuplements de poissons des îles et récifs de l’Astrolabe, Pétrie et Walpole, Parc Naturel de la Mer de Corail. Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: 5
Autores: Schohn, Thomas; Bockel, Thomas; Carpentier, Liliane; Pelletier, Dominique.
- The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The survey relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  - The study pertains to the reefs of Astrolabe, Pétrie and Walpole Island, located within the Coral Sea Natural Park. The survey conducted in 2014 covers the entire area, and the sampling design was stratified according to reef type. 95 stations were validated. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1).  - 28 indicators were computed and mapped (maps available on a Sextant server)....
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc naturel mer de Corail; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Ecosystème corallien; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51738/52324.pdf

Evaluation of the impact of polyethylene microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae
Provedor de dados: 5
Autores: Mazurais, David; Ernande, Bruno; Quazuguel, Patrick; Severe, Armelle; Huelvan, Christine; Madec, Lauriane; Mouchel, Olivier; Soudant, P.; Robbens, J.; Huvet, Arnaud; Zambonino-infante, J.
Microplastics are present in marine habitats worldwide and may be ingested by low trophic organisms such as fish larvae, with uncertain physiological consequences. The present study aims at assessing the impact of polyethylene (PE 10-45µM) microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae. Fish were fed an inert diet including 0, 104 and 105 fluorescent microbeads per gram from 7 until 43 days post-hatching (dph). Microbeads were detected in the gastrointestinal tract in all fish fed diet incorporating PE. Our data revealed an efficient elimination of PE beads from the gut since no fluorescent was observed in the larvae after 48h depuration. While the mortality rate increased significantly with the amount of microbeads scored per...
Tipo: Text
Palavras-chave: Microplastic; Fish; Larvae; Ingestion; Survival.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00279/39057/37621.pdf

Effect of high pressure on the calpain-calpastatin system in fish muscle
Provedor de dados: 5
Autores: Cheret, Romuald; Delbarre Ladrat, Christine; Verrez-bagnis, Veronique; De Lamballerie, Marie.
Calpains (calcium-activated neutral proteases) of sea bass (Dicentrarchus labrax L.) muscle may participate in the degradation of muscle tissue during postmortem storage. These enzymes are regulated by calpastatin, their endogenous specific inhibitor. The objective of this study was to evaluate the changes encountered by the calpain system during the postmortem storage of fish muscle after high-pressure treatment. From 100 MPa, high-pressure treatment of purified calpains results in a loss of their activity as well as in the dissociation of the heterodimeric form. In muscle, the high-pressure processing decreases the initial activity of calpain. This loss in activity may be due to an inactivation by a change of structure. Initial calpastatin activity is...
Tipo: Text
Palavras-chave: Postmortem denaturation; High pressure; Fish; Calpain system.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2786.pdf

Détection de la flore d'altération du poisson réfrigéré : évaluation d'un milieu de culture
Provedor de dados: 5
Autores: Joffraud, Jean-jacques; Chevalier, Frederique.
The study submitted in this paper intendent to assess the ability of a culture medium for the detection and counting of chilled fish spoilage flora. Some authors used a medium allowing the detection of the whole spoilage bacteria on the basis of H2S production but this medium as been only used for cod flora analysis (Gadus morhua) coming from north sea or baltic sea. Therefore this study aimed to assess the efficiency of medium on withing flesh (Merlangius merlangus), gadidae of temperate sea water, on the one hand and salmon flesh (Salmo salar), aquacultural salmonidae, on the other hand. During this study, about 120 bacterial strains (half of them being H2S producing) were isolat respectively from whiting and salmon flesh stored in air or under vacuum....
Tipo: Text
Palavras-chave: Bacteriologie alimentaire; Alteration du poisson; Flore d'alteration; Refrigeration; Food bacteriology; Spoilage; Fish; Spoilage flora; Chilling.
Ano: 1993
URL: https://archimer.ifremer.fr/doc/00462/57407/59499.pdf

What role for genomics in fisheries management and aquaculture?
Provedor de dados: 5
Autores: Wenne, Roman; Boudry, Pierre; Hemmer-hansen, Jakob; Lubieniecki, Krzysztof P.; Was, Anna; Kause, Antti.
The development and application of genomics has been facilitated in a number of fields by the availability of new methodologies and tools, such as high throughput DNA sequencing and complementary DNA (cDNA) microarrays. Genomic tools are already used in research on commercially important fish and shellfish species. Thousands of expressed sequence tags (EST) are now available for some of these species, and the sequencing of complete genomes of tilapia, cod, salmonids, flatfishes, sea bass and Pacific oyster has been proposed. Microarray technology through simultaneous analysis of the expression of thousands of genes allows the identification of candidate genes involved in the function of multiple physiological, morphological and behavioural traits of...
Tipo: Text
Palavras-chave: Oyster; Fish; Quantitative trait loci; Mariculture; Fisheries; Genetics; Genomics.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2927.pdf

Estimating effective population size of large marine populations, is it feasible?
Provedor de dados: 5
Autores: Marandel, Florianne; Lorance, Pascal; Berthele, Olivier; Trenkel, Verena; Waples, Robin S.; Lamy, Jean-baptiste.
stainable exploitation of marine populations is a challenging task relying on information about their current and past abundance. Fisheries‐related data can be scarce and unreliable making them unsuitable for quantitative modelling. One fishery independent method that has attracted attention in this context consists in estimating the effective population size (Ne), a concept founded in population genetics. We reviewed recent empirical studies on Ne and carried out a simulation study to evaluate the feasibility of estimating Ne in large fish populations with the currently available methods. The detailed review of 26 studies found that published empirical Ne values were very similar despite differences in species and total population sizes (N). Genetic...
Tipo: Text
Palavras-chave: Census population size; Effective population size; Fish; Linkage disequilibrium; Management; Simulation.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00470/58162/60678.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo‐lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs. Annexe 2 : Fiches métriques : Influences du statut de protection (Réserve de la passe Longogori), du type géomorphologique et de l’habitat
Provedor de dados: 5
Autores: Roman, William; Pelletier, Dominique; Wickel, Julien; Giannasi, Paul.
• This work deals with coral reef fish resources and communities in the Natural Marine Park of Mayotte, Western Indian Ocean). It relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  • This document is complementary to the main assessment report:  William Roman and Dominique Pelletier, 2016. The STAVIRO video technique for monitoring fish resources and reef ecosystems in the Natural Marine Park of Mayotte (Western Indian Ocean). Pilot study and recommendations for monitoring. EXPLOCEAN-IFREMER Report.  • It pertains to the assessment of resources with respect to protection status and factors related to local habitat and reef geomorphology. • It comprises the description of the metrics used for the assessment:...
Tipo: Text
Palavras-chave: Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Indicateur; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Indicator; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48423/48644.pdf

L'éthoxyrésorufine-o-déethylase, les adduits à l'ADN et les mocronuclei dans les organismes marins. Application à la surveillance des effets biologiques sur les côtes françaises
Provedor de dados: 5
Autores: Burgeot, Thierry.
Three biomarkers [ethoxyresorufm-o-deethylase (EROD), DNA adducts and micronuclei (MN) were studied for biomonitoring applications along French coasts. EROD was developed at an experirnental stage in two pilot sites, Seine Bay and Fos sur Mer, using the dab (Limanda limanda), dragon et (Callionymus lyra), red mullet (Mullus barbatus) and comber (Serranus hepatus) as target species. Higbest EROD activity was observed in the subestuarial part of Seine Bay and at the stations closest to sources of pollution from Cortiou and Fos sur Mer. The suitable number of fish for detection of a significant difference between two EROD activities was deterrnined as a function of sampling variance and a preselected statistical power. A preliminary study on hepatocytes in a...
Tipo: Text
Palavras-chave: Ethoxyrésorufine-o-déethylase; Adduits à l'ADN; Micronuclei; Poisson; Moule; Huître; Biosurveillance; Ethoryresorufin-o-deethylase; DNA adducts; Micronuclei; Fish; Mussel; Oyster; Biomonitoring.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00443/55462/56984.pdf

Jellyfish as an alternative source of food for opportunistic fishes
Provedor de dados: 5
Autores: Marques, Raquel; Bouvier, Corinne; Darnaude, Audrey M.; Molinero, Juan-carlos; Przybyla, Cyrille; Soriano, Solenn; Tomasini, Jean-antoine; Bonnet, Delphine.
Although scientific interest on jellyfish ecology has substantially increased in the last decades, little is known on the role of potential predators shaping their population dynamics. Jellyfish were long considered as ‘dead ends’ within food webs, and therefore overlooked as potential food source for higher trophic levels, e.g. fishes. Here this question is tackled by using comprehensive laboratory experiments assessing fish predation on jellyfish. The approach included all the life stages (polyps, ephyrae and medusa) of Aurelia sp. versus more traditional aquaculture feeds in an easily farmed opportunistic fish, the gilthead seabream Sparus aurata (L.). Results revealed that all life stages of Aurelia sp. were accepted as a source of food by S. aurata,...
Tipo: Text
Palavras-chave: Aurelia sp.; Predation; Fish; Sparus aurata; Ingestion rate; Energy pathways.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00349/46018/46026.pdf

CHARM : Atlas des Habitats des Ressources Marines de la Manche Orientale
Provedor de dados: 5
Autores: Carpentier, Andre; Coppin, Franck; Dauvin, Jean-claude; Desroy, Nicolas; Dewarumez, Jean-marie; Eastwood, Paul D.; Ernande, Bruno; Harrop, Stuart; Kemp, Zarine; Koubbi, Philippe; Williams, Nigel Leader; Lefebvre, Alain; Lemoine, Michel; Loots, Christophe; S. Martin, Corinne; Meaden, Geoff J.; Ryan, Nick; Tan, Lei; Vaz, Sandrine; Walkey, Mike.
INTRODUCTION:  The Dover Strait (Figure 1) connects the North Sea to the English Channel. Here, northern France and South-East England are at their closest. This narrow corridor, one of the world's busiest straits for maritime shipping, is a key economic area for numerous activities, such as leisure and tourism, international ports and shipping, plus the exploitation of living or abiotic marine resources. This area is a significant resource for fisheries because many commercial fish species are abundant there, but also because of the presence of nursery and spawning areas and migratory routes linked to specific environmental characteristics. The vulnerability of these resources, which are subjected to strong anthropogenic pressures, has brought together...
Tipo: Text
Palavras-chave: Survey; Landings; Larvae; Eastern channel; Benthos; Fish; Sig; Policy analysis; Species protection; Habita protection; Protected areas; Marine biodiversity conservation.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/rapport-2350.pdf

Liste des « poissons » capturés dans les Pertuis charentais de 2005 à 2012. Cartes de distribution annuelles pour 18 espèces
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Quero, Jean-claude.
From 2005 to 2012, during the 8 annual summer beam trawl fishing surveys in the Pertuis charentais to assess the abundance of young soles, 59 species of fish were caught : 2 Elasmobranchii and 57 Actinopterygii. The list of these and the annual distribution maps of the more or less 18 plentiful species are given.
Tipo: Text
Palavras-chave: Poisson; Cartes de repartition; Pertuis charentais; Fish; Distribution maps; Pertuis charentais.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00240/35119/36067.pdf

Growth, condition and metal concentration in juveniles of two Diplodus species in ports
Provedor de dados: 5
Autores: Bouchoucha, Marc; Brach-papa, Christophe; Gonzalez, Jean-louis; Lenfant, P.; Darnaude, A. M.
High abundances of juvenile fish in certain ports suggest they might provide alternative nursery habitats for several species. To further investigate this possibility, post-settlement growth, metal uptake and body condition were estimated in 127 juveniles of two seabream species, collected in 2014–15, inside and outside the highly polluted ports of the Bay of Toulon. This showed that differences in local pollution levels (here in Hg, Cu, Pb and Zn) are not consistently mirrored within fish flesh. Muscle metal concentrations, below sanitary thresholds for both species, were higher in ports for Cu, Pb and V only. Otherwise, fish muscle composition principally differed by species or by year. Juvenile growth and condition were equivalent at all sites. Higher...
Tipo: Text
Palavras-chave: Coastal areas; Nursery habitats; Fish; Contamination; Otoliths.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00408/51932/52609.pdf

Influence of crude oil exposure on cardiac function and thermal tolerance of juvenile rainbow trout and European sea bass
Provedor de dados: 5
Autores: Anttila, Katja; Mauduit, Florian; Le Floch, Stephane; Claireaux, Guy; Nikinmaa, Mikko.
Oil spills pose a threat to aquatic organisms. However, the physiological effects of crude oil on cardiac function and on thermal tolerance of juvenile fish are still poorly understood. Consequently, in this paper, we will present results of two separate experiments where we exposed juvenile rainbow trout and European sea bass to crude oil and made cardiac thermal tolerances and maximum heart rate (fHmax) measurements after 1 week (rainbow trout) and 6-month recovery (sea bass). In both species, the fHmax was lower in crude oil-exposed fish than in the control ones at temperatures below the optimum but this difference disappeared at higher temperatures. More importantly, the oil-exposed fish had significantly higher Arrhenius break point temperature for...
Tipo: Text
Palavras-chave: Arrhenius break point temperature; Critical thermalmaximum; CTMAX; Fish; Heart rate; Oil spill; PAH.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00391/50271/50970.pdf

Suivi de la biodiversité par vidéo sous-marine : analyse d’images et analyse des données recueillies dans la zone de Koné, Province Nord de Nouvelle-Calédonie
Provedor de dados: 5
Autores: Jac, Cyrielle.
This study describes my work within the AMBIO project at the IFREMER center of Noumea. The aim of this study is to analyze and to treat underwater video to make a short ecological report of Koné lagoon. After an explanation of the video technics used (STAVIRO) and of the pictures analyze protocols, you will find a description of the working area. Next, this report presents ecological status of this place.
Tipo: Text
Palavras-chave: Stations Vidéos Rotatives; Ichtyofaune; Habitat; Réserve; SIG; Statistiques; STAVIRO; Fish; Habitat; Reserve; SIG; Statistics.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00250/36078/34629.pdf

Side effects of sexual maturation on heritability estimates in rainbow trout (Oncorhynchus mykiss)
Provedor de dados: 5
Autores: Dupont-nivet, Mathilde; Chevassus, Bernard; Mauger, Stephane; Haffray, Pierrick; Vandeputte, Marc.
Tipo: Text
Palavras-chave: Fish; Genetic parameters; Sex effect; Growth.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00016/12690/9656.pdf

Characterization of the spoilage potential of pure and mixed cultures of bacterial species isolated from tropical yellowfin tuna (     Thunnus albacares     )
Provedor de dados: 5
Autores: Silbande, A.; Cornet, Josiane; Cardinal, Mireille; Chevalier, Frederique; Rochefort, K.; Smith-ravin, J.; Adenet, S.; Leroi, Francoise.
Aim The spoilage potential of 28 bacterial strains isolated from spoiled raw yellowfin tuna was evaluated. Methods and Results Bacterial species were inoculated in irradiated tuna matrix. Chemical changes, bacterial growth and sensory quality were monitored during aerobic storage at 8°C. Pseudomonas spp., Enterobacter spp. and Escherichia hermanii had no spoiling effect. Brochothrix thermosphacta and Carnobacterium divergens/maltaromaticum developed moderate unpleasant odors. Hafnia paralvei and Serratia spp. released strong off-odors (pyrrolidine, sulfur/cabbage). No bacterial group (except H. paralvei) combined with Pseudomonas spp. deteriorated the sensory quality of tuna. When C. divergens/maltaromaticum was associated with H. paralvei or B....
Tipo: Text
Palavras-chave: Bacterial interactions; Bacterial species; Fish; Pseudomonas; Sensory quality; Spoilage potential; Tropical; Tuna.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00414/52557/53395.pdf

Environmental drivers explain regional variation of changes in fish and invertebrate functional groups across the Mediterranean Sea from 1994 to 2012
Provedor de dados: 5
Autores: Brind'Amour, Anik; Rochet, Marie-joelle; Ordines, Francesc; Hosack, Geoff; Berthele, Olivier; Merigot, Bastien; Carbonara, Pierluigi; Follesa, Maria Cristina; Jadaud, Angelique; Lefkaditou, Evgenia; Maiorano, Porzia; Peristeraki, Panagiota; Mannini, Alessandro; Rabiller, Manuella; Spedicato, Maria Teresa; Tserpes, George; Trenkel, Verena.
Functional groups are sets of species that play a similar role in a food web. We defined functional groups of fish species based on their morphological characteristics, while using expert knowledge for invertebrates. We measured 9 morphological traits of 72 fish species, and carried out multivariate analyses to assign fish species to functional groups. The analysis identified 9 trait-based fish functional groups to which were added 3 expert-based invertebrate functional groups. The habitat (position in the water column) and potential diet of each group were identified from the literature. Using the MEDITS bottom trawl survey data collected at 10 to 800 m depth, we calculated relative change in the 12 fish and invertebrate functional group biomasses for 12...
Tipo: Text
Palavras-chave: Morphological traits; Community models; Functional network; Functional groups; Mediterranean Sea; Temporal trends; Fish; Shellfish.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00363/47382/47475.pdf

Temperature induced variation in gene expression of thyroid hormone receptors and deiodinases of European eel ( Anguilla anguilla ) larvae
Provedor de dados: 5
Autores: Politis, Sebastian Nikitas; Servili, Arianna; Mazurais, David; Zambonino-infante, Jose-luis; Miest, J. J.; Tomkiewicz, J.; Butts, I. A. E.
Thyroid hormones (THs) are key regulators of growth, development, and metabolism in vertebrates and influence early life development of fish. TH is produced in the thyroid gland (or thyroid follicles) mainly as T4 (thyroxine), which is metabolized to T3 (3,5,3’-triiodothyronine) and T2 (3,5-diiodothyronine) by deiodinase (DIO) enzymes in peripheral tissues. The action of these hormones is mostly exerted by binding to a specific nuclear thyroid hormone receptor (THR). In this study, we i) cloned and characterized thr sequences, ii) investigated the expression pattern of the different subtypes of thrs and dios, and iii) studied how temperature affects the expression of those genes in artificially produced early life history stages of European eel (Anguilla...
Tipo: Text
Palavras-chave: Aquaculture; Fish; Early life history.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00409/52020/52678.pdf

Poissons et invertébrés au large des côtes de France. Indicateurs issus des pêches scientifiques. Bilan 2004
Provedor de dados: 5
Autores: Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lobry, Jeremy; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Verin, Yves; SIH-C.
The integration of fishing management into the ecosystemic approach has been recommended for many years by international consultative bodies; it is also written into international conventions and agreements. The implementation of the ecosystemic approach involves the development of programmes for monitoring exploited ecosystems in order to measure the effects of management steps. Plotting the results of these observations for operational reasons requires formalizing summary performance indicators.  IFREMER has carried out halieutic observation campaigns for some twenty years along the coasts of France from oceanographic ships and chartered ships. The objective of these campaigns is to produce abundance indices of species that are of halieutic interest....
Tipo: Text
Palavras-chave: Ecosystem; Indicating; Scientific survey; Scientific research; Fishing; English Channel; Bay of Biscay; France; Shellfish; Fish; Invertébrés; Poissons; Ecosystème; Indicateur; Campagne océanographique; Recherche scientifique; Pêche halieutique; Pêche; Mer du nord; Golfe de gascogne; Manche; France.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/rapport-2327.pdf

Trade-off between thermal sensitivity, hypoxia tolerance and growth in fish
Provedor de dados: 5
Autores: Roze, Thomas; Christen, Felix; Amerand, Aline; Claireaux, Guy.
One outcome of contemporary climate trends is that the involvement of hypoxia and heat tolerance in determining individual fitness will increase in many fish populations. Large fish are believed to be more tolerant to hypoxia than small fish (Nilsson and Ostlund-Nilsson, 2008) whereas thermal sensitivity is thought to decrease with body size (Clark et al., 2008). To better understand the bases of inter-individual variation in environmental adaptation performance, the current study examined hypoxia and heat tolerance in a fast growing (FGS; 288.3 +/- 14.4 g, 26.04 +/- 0.49 cm) and a slow growing (SGS; 119.95 +/- 6.41 g; 20.98 +/- 0.41 cm) strain of 1-year old rainbow trout (Oncorhynchus mykiss). This examination was conducted using two standardized...
Tipo: Text
Palavras-chave: Fish; Hypoxia; Temperature; Trade-off; Growth; Body size.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00130/24104/22371.pdf

Contamination chimique du milieu marin : de la mesure à l'évaluation des risques
Provedor de dados: 5
Autores: Abarnou, Alain.
This activity report entitled (“Chemical contamination of the marine environment: from measurement to risk assessment”) summarizes the main stages my career at Ifremer from November 1975 to june 2013. The first chapter deals with the seawater chlorination and chlorinated waters released into the sea, the identification and the conditions of the formation of various by-product of these processes. The second chapter concerns PCBs, their nature, their chemical analysis in environmental matrices. PCBs are considered as the best examples of persistant and bioaccumulable compounds and therefore, in all this report they are flagship contaminants to which other groups of studied substances are compared. The third chapter refers to studies performed within marine...
Tipo: Text
Palavras-chave: Chlore; Chloration de l’eau de mer; Oxydant; Bromoforme; Impact environnemental; Mécanismes réactionnels; Désinfection; Polluants organiques persistants (POP); PCB; Dioxines; HAP; PBDE; Chlordécone; Baie de Seine; Organismes marins; Moules; Poissons; Surveillance environnementale; Analyse; Bioaccumulation; Chlorine; Seawater chlorination; Oxidizing agent; Bromoform; Environmental impact; Reaction mechanisms; Disinfection; Persitsent organic pollutants (POPs); PCBs; Dioxins; PAHs; PBDEs; Chlordecone (kepone); Baie de Seine; Marine organisms; Mussel; Fish; Environmental monitoring; Chemical analysis; Bioaccumulation.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00168/27946/26237.pdf

Impact of the sampling protocol in assessing ecological trends in an estuarine ecosystem: The empirical example of the Gironde estuary
Provedor de dados: 5
Autores: Pasquaud, Stephanie; Brind'Amour, Anik; Berthele, Olivier; Girardin, Michel; Elie, Pierre; Boet, Philippe; Lepage, Mario.
In view of the European Union (EU) requirements to diagnose and monitor the ecological status of estuarine ecosystems using fish-based indicators, we assessed the effect of the sampling protocol in meeting these objectives. Using three different sampling surveys, we evaluated the impact of four components, i.e. sampling gear, spatial extent, length of time series and temporal window analysed, on the detection of ecological trends in the Gironde estuary, estimated by different types of fish-based indicator. For each component, temporal trends of several fish-based indicators were analysed and for the final diagnosis these temporal trends were combined. The results showed that sampling gear had significant effects on the assessment of ecological trends, as...
Tipo: Text
Palavras-chave: Protocol effects; Fishing gear; Ecological trend; Fish; Indicators; Estuarine ecosystem.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00049/15976/14533.pdf

Selection for muscle fat content and triploidy affect flesh quality in pan-size rainbow trout, Oncorhynchus mykiss
Provedor de dados: 5
Autores: Lefevre, Florence; Cardinal, Mireille; Bugeon, Jerome; Labbe, Laurent; Medale, Francoise; Quillet, Edwige.
A lean muscle line (L) and a fat muscle line (F) of rainbow trout were established (Quillet et al., 2005) by a two-way selection for muscle lipid content performed on pan-size rainbow trout using a non-destructive measurement of muscle lipid content (Distell Fish Fat Meter®). The aim of the present study was to evaluate the consequences of this selective breeding on flesh quality of pan size (290 g) diploid and triploid trout after three generations of selection. Instrumental evaluations of fillet color and pH measurement were performed at slaughter. Flesh color, pH, dry matter content and mechanical resistance were measured at 48 h and 96 h postmortem on raw and cooked flesh, respectively. A sensorial profile analysis was performed on cooked fillets....
Tipo: Text
Palavras-chave: Flesh quality; Lipid content; Muscle fiber; Triploid; Fish; Texture.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00271/38246/36431.pdf

Etat de santé initial des habitats et peuplements de poissons des récifs de Chesterfield-Bellona, Parc Naturel de la Mer de Corail, Campagne de stations vidéo rotatives STAVIRO 2013
Provedor de dados: 5
Autores: Pelletier, Dominique; Bockel, Thomas; Roman, William; Carpentier, Liliane; Laugier, Thierry.
- The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The surveys rely on remote unbaited underwater video observations, using the STAVIRO rotating technique. Chesterfield and Bellona remote reefs and atolls are located in the Coral Sea Marine Park, northwest of New Caledonia. -This 2013 survey is the first scientific survey covering the entire area, with a sampling design stratified according to reef type. 203 stations were validated within 10 days. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1). - 34 indicators were computed and mapped (maps...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc de la Mer de Corail; Aire Marine Protégée; AMP; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Coral Sea Marine Park; Marine Protected Area; MPA; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00381/49247/49700.pdf

Improving feed efficiency in fish using selective breeding: a review
Provedor de dados: 5
Autores: De Verdal, Hugues; Komen, Hans; Quillet, Edwige; Chatain, Beatrice; Allal, Francois; Benzie, John A. H.; Vandeputte, Marc.
Improving feed efficiency (FE) is key to reducing production costs in aquaculture and to achieving sustainability for the aquaculture industry. Feed costs account for 30–70% of total production costs in aquaculture; much work has been done on nutritional and husbandry approaches to improve FE but only a limited amount of research has been devoted to using genetics, despite its potential. This paper reviews past work to improve FE in fish using selective breeding and assess future directions. Direct selection on FE traits requires methods to measure individual feed consumption and estimate FE efficiently and accurately. This is particularly difficult to do in fish because of the environment in which they live. Many of the published studies on FE were found...
Tipo: Text
Palavras-chave: Feed conversion ratio; Feed efficiency; Feed intake; Fish; Genetics; Selection.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00415/52675/53771.pdf

La variabilité des tailles individuelles à l'intérieur des cohortes et des bancs de poissons I : Observations et interprétation
Provedor de dados: 5
Autores: Freon, Pierre.
Body length variability bas been studied in fish schools and eohorts of two tropical pelagie species. The data, and simulations associated with them allow the variations in standard deviation of cohorts to be followed, and hypotheses on spawning duration or population structure ean thus be tested. As the fish grow, the variability increases more rapidly in young eohorts than in schools with the same mean length. For older fish, the inverse phenomenon is observed: while the standard deviation of individual lengths deereases in a cohort as it gets older, this parameter continued to inerease in sehools as the mean length increases. This shows that schools of young fish eannot be eonsidered as representative of the cohort length frequency distribution, whereas...
Tipo: Text
Palavras-chave: Poissons; Pélagiques côtiers:; Variabilité des tailles; Cohortes; Bancs; Fish; Coastal pelagic; Length variability; Cohorts; Schools.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/00113/22444/20131.pdf

Assessing chronic fish health: An application to a case of an acute exposure to chemically treated crude oil
Provedor de dados: 5
Autores: Mauduit, Florian; Domenici, P.; Farrell, A. P.; Lacroix, C.; Le Floch, S.; Lemaire, P.; Nicolas-kopec, A.; Whittington, M.; Zambonino-infante, Jose-luis; Claireaux, Guy.
Human alteration of marine ecosystems is substantial and growing. Yet, no adequate methodology exists that provides reliable predictions of how environmental degradation will affect these ecosystems at a relevant level of biological organization. The primary objective of this study was to develop a methodology to evaluate a fish’s capacity to face a well-established environmental challenge, an exposure to chemically dispersed oil, and characterize the long-term consequences. Therefore, we applied high-throughput, non-lethal challenge tests to assess hypoxia tolerance, temperature susceptibility and maximal swimming speed as proxies for a fish’s functional integrity. These whole animal challenge tests were implemented before (1 month) and after (1 month)...
Tipo: Text
Palavras-chave: Fish; Oil spill; Dispersant; Biomarkers; Physiological integrity; Ecological performance; Temperature; Hypoxia; Swimming; Growth.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00347/45828/45916.pdf

Environment and immunomodulation : effects of the soluble fraction of Norwegian heavy fuel on the immune system of Sea bass, Dicentrarchus labrax
Provedor de dados: 5
Autores: Bado-nilles, Anne; Quentin, Claire; Le Floch, Stéphane; Arzel, Jacqueline; Auffret, Michel; Gagnaire, Beatrice; Renault, Tristan; Thomas-guyon, Hélène.
Estuaries and coastal areas are often subjected to much pollution, including pesticides and polycyclic aromatic hydrocarbons (PAHs) produced by anthropic activities. Bay of Marennes-Oléron is an estuarine coastal zone in which there is a high level of aquacultural production and this has adverse effects in aquatic organisms. In fact, PAHs, which are widely spread throughout aquatic ecosystems, have a low polarity and so there is a clear tendency to bioaccumulate in marine organisms (1). The harmful effects of such contaminants on the organism's immune system, leading to a decreased resistance to pathogens, is a relatively new area of research and it still poorly understood.  The aim of the present work was to detect the impact in vivo of PAHs on the immune...
Tipo: Text
Palavras-chave: PaHs; Fish; Contamination; Dicentrarchus labrax.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3427.pdf

Genetic catalogue, biological reference collections and online database of European marine fishes
Provedor de dados: 5
Autores: Bautista, José M.; Verrez-bagnis, Veronique; Kourti, Naouma.
Taxonomy and systematics of most animal species have been described in sufficient detail to permit the classification of practically any organism and, in particular, may be of use in the identification of the species and subspecies for the fish trade and ecological concerns regarding fisheries. However, before FishTrace started there was a lack of fast reference tools that hindered the efficient identification and differentiation of teleosts required in fisheries management, biological and ecological research, and human consumption. This problem could affect several of the socio-economic activities related to Fisheries Policies and therefore, the constitution of a database for identification of fish species of commercial, ecological and zoological interest...
Tipo: Text
Palavras-chave: Database; Fish; Genetics.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-6595.pdf

Non-native aquatic animals introductions have driven disease emergence in Europe
Provedor de dados: 5
Autores: Peeler, Edmund J.; Oidtmann, Birgit C.; Midtlyng, Paul J.; Miossec, Laurence; Gozlan, Rodolphe E.
In this paper it is argued, using examples of disease emergence in aquatic animals in Europe, that the introduction of non-native species drives disease emergence by both extending the geographic range of parasites and pathogens and facilitating host-switching. Enteric red mouth disease and infectious haematopoietic necrosis of salmonids have extended their geographic range from North America to Europe with the import of live fish (Pimephales promelas) and rainbow trout eggs, respectively. Host-switching results in disease emergence when previously unidentified commensal organisms or known pathogen switch to new naïve hosts. The most serious endemic diseases of wild aquatic animals in Europe in recent years can be traced to the introduction of non-native...
Tipo: Text
Palavras-chave: Aquaculture; Transmission; Control; Pathways; Virulence; Fish.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00033/14431/14066.pdf

Electronic individual identification of zebrafish using radio frequency identification (RFID) microtags
Provedor de dados: 5
Autores: Cousin, Xavier; Daouk, Tarek; Pean, Samuel; Lyphout, Laura; Schwartz, Marie-elise; Begout, Marie-laure.
Although individual electronic tagging using passive integrated acoustic (PIT) tags is established, it is mainly for fish &gt;60. mm in length and is unsuitable for fish of &lt;30. mm, like zebrafish. We used radio frequency identification (RFID) microtags (1 mm in diameter and 6 mm in length, with a mass of similar to 10 mg) to individually identify juvenile zebrafish (length 16-42 mm, mass 138-776 mg) for the first time, and studied the effects of intracoelomic implantation on fish survival and microtag loss, growth, spawning and exploratory behaviour. After 5.5 months, both high survival (82%) and low microtag loss (11%) were achieved. The smallest surviving fish weighed 178 mg, and success in microtag reading was 73% for the size class 350-450 mg (26...
Tipo: Text
Palavras-chave: Effects; Fish; Marking.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00089/20066/17835.pdf

Spatial distribution and activity patterns as welfare indicators in response to water quality changes in European sea bass, Dicentrarchus labrax
Provedor de dados: 5
Autores: Alfonso, Sebastien; Sadoul, Bastien; Cousin, Xavier; Bégout, Marie-laure.
In aquaculture, fish are exposed to unavoidable stressors that can be detrimental for their health and welfare. However, welfare in farmed fish can be difficult to assess, and, so far, no standardized test has been universally accepted as a welfare indicator. This work contributes to the establishment of behavioural welfare indicators in a marine teleost in response to different water quality acute stressors. Groups of ten fish were exposed to high Total Ammonia Nitrogen concentration (High TAN, 18 mg.L-1), Hyperoxia (200 % O2 saturation), Hypoxia (20 % O2 saturation), or control water quality (100% O2 saturation and TAN &lt; 2.5 mg.L-1) over 1 hour. Fish were then transferred in a novel environment for a group behaviour test under the same water quality...
Tipo: Text
Palavras-chave: Fish; Welfare; Water quality; Behaviour; Stress.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00612/72399/71344.pdf

Effluents from land based marine farms: nature, treatment, valorisation, modelisation. Applications to fish and shrimp rearing
Provedor de dados: 5
Autores: Hussenot, Jerome; Lefebvre, Sebastien; Martin, Jean-louis.
Fish culture (seabass, turbot...) on the French metropolitan coast, and shrimp culture in the overseas territories (essentially New Caledonia and Tahiti) are subject to a regular development through land based farms. Three thematic of research on aquaculture ponds are carried out in CREMA-L’Houmeau, in collaboration with producers. The aim of the first one is to determine the optimal rearing conditions (stocking density, water renewal rate, input of oxygen, rate of feeding...) which allow to minimise the quantity of wastes for a similar final biomass. The second part aims to reduce the nutrient loading in the effluent, through open-air treatments: sedimentation ponds, foam fractionation, mass production of phytoplankton, and rearing of molluscs on the...
Tipo: Text
Palavras-chave: Fish; Shrimp; Pond management; Effluents; Treatment.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00016/12728/9650.pdf

Avoidance threshold to oil water soluble fraction by a juvenile marine teleost fish
Provedor de dados: 5
Autores: Claireaux, Guy; Queau, Pierre; Marras, Stefano; Le Floch, Stephane; Farrell, Anthony P.; Nicolas-kopec, Annabelle; Lemaire, Philippe; Domenici, Paolo.
When oil spills occur, behavior is the first line of defense for a fish to avoid being contaminated. Here, we determined the avoidance threshold of the European seabass (Dicentrarchus labrax) to the water-soluble fraction (WSF) of oil using a dual flow choice box. Our experiment revealed that a plume of 20%-diluted WSF (total PAH concentration: 8.54 μg L-1) triggered a significant avoidance response that was detected within 7.5 minutes of introducing WSF-contaminated water in the experimental set-up. However, the ecological relevance of seabass capacity to detect and avoid WSF remains to be established. In the short term, such response is indeed liable to reduce sea bass contact time with oil-contaminated water and thus preserve their functional integrity....
Tipo: Text
Palavras-chave: Fish; Oil; Behavior; Avoidance reaction; Water-soluble fraction.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00407/51899/52522.pdf

Sprint swimming performance of juvenile European sea bass
Provedor de dados: 5
Autores: Nelson, J; Claireaux, Guy.
Despite its potential for determining animal success in a variety of ecologically important situations, very little is known about the sprint swimming performance of fishes. To evaluate whether selection on sprint swimming performance occurs in the wild, one must first demonstrate measurable and reproducible variation of sprint performance. In this study, we employ a computer-controlled laser detection system to study the sprint performance of 75 juvenile European sea bass Dicentrarchus labrax raised under uniform conditions in the laboratory. This percichthyid is a prized sport and food fish in Europe and similar ecologically to the North American striped bass Morone saxatilis. Individual European sea bass were subjected to endurance swimming performance...
Tipo: Text
Palavras-chave: Dicentrarchux labrax; Juveniles; Computer laser detection; Endurance; Metabolism; Swimming performance; Fish.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-887.pdf

Low temperature has opposite effects on sex determination in a marine fish at the larval/postlarval and juvenile stages
Provedor de dados: 5
Autores: Vandeputte, Marc; Clota, Frederic; Sadoul, Bastien; Blanc, Marie-odile; Blondeau-bidet, Eva; Bégout, Marie-laure; Cousin, Xavier; Geffroy, Benjamin.
Temperature‐dependent sex determination (TSD) can be observed in multiple reptile and fish species. It is adaptive when varying environmental conditions advantage either males or females. A good knowledge of the thermosensitive period is key to understand how environmental changes may lead to changes in population sex ratio. Here, by manipulating temperature during development, we confirm that cold temperature (16°C) increases the proportion of fish that develop as females in European sea bass (Dicentrarchus labrax) until 56 days posthatching, but show that it has an opposite effect at later stages, with the proportion of males reaching ~90% after 230 days at 16°C. This is the first observation of opposite effects of temperature at different time periods...
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Fish; Sex ratio; Temperature-dependent sex determination; Thermosensitive period; TSD.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00658/76965/78184.pdf

Mapping habitats in a marine reserve showed how a 30-year trophic cascade altered ecosystem structure
Provedor de dados: 5
Autores: Leleu, Kevin; Remy-zephir, Brice; Grace, Roger; Costello, Mark J.
Time-series studies have reported trophic cascades in land, freshwater and marine environments in many geographic areas. However, the spatial extent of habitats, a key metric of ecosystem structure, has not been mapped in these studies. Marine reserves can provide experimental, before-after and inside-outside (control-impacted), situations for assessing the impact of fishing on ecosystems. We mapped seabed habitats and their associated communities (biotopes) in New Zealand's oldest marine reserve for comparison with pre-reserve maps created about 30 years previously. Areas grazed bare by sea urchins were entirely replaced in the centre of the reserve by kelp, or alga turf, an intermediate biotope between heavily grazed encrusting algae and lightly grazed...
Tipo: Text
Palavras-chave: Kelp forest; Ecosystem change; Predator release; Subtidal mapping; Urchin Barren; New Zealand; Lobster; Fish; Time-series.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00107/21842/20067.pdf

Updating the importance of lactic acid bacteria in fish farming: natural occurrence and probiotic treatments
Provedor de dados: 5
Autores: Gatesoupe, Joel.
Many recent papers have deepened the state of knowledge about lactic acid bacteria (LAB) in fish gut. In spite of high variability in fish microbiota, LAB are sometimes abundant in the intestine, notably in freshwater fish. Several strains of Streptococcus are pathogenic to fish. S. iniae and Lactococcus garvieae are major fish pathogens, against which commercial vaccines are available. Fortunately, most LAB are harmless, and some strains have been reported for beneficent effects on fish health. A major step forward of the recent years was those converging evidences that LAB can stimulate the immune system in fish. An open question is whether viability can affect immunostimulation. The issue is crucial to commercialise live probiotics rather than...
Tipo: Text
Palavras-chave: Probiotic; Pathogen; Lactic acid bacteria; Gastrointestinal microbiota; Fish.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2007/publication-2589.pdf

Fatty acid profile of fish following a change in dietary fatty acid source: model of fatty acid composition with a dilution hypothesis
Provedor de dados: 5
Autores: Robin, Jean; Regost, Christelle; Arzel, Jacqueline; Kaushik, Sadasivam.
The fatty acid (FA) content of fish is generally said to reflect fatty acid composition of the diet. In fact, incorporation of FA into tissues is modulated by various metabolic factors, and final composition will depend upon the initial FA content, cumulative intake of dietary fatty acids, growth rate and duration. Analysis of time course of changes in FA composition should be easier with animals having different initial FA profiles, which are subsequently fed a diet with the same FA composition.   Data from two studies, one with brown trout and another with turbot were used. Fish were first fed with diets containing one of three different oils (soybean oil (SO), linseed oil (LO) and fish oil (FO)), and subsequently fed the same fish oil-based diet...
Tipo: Text
Palavras-chave: Dietary change; Model; Fish; Fatty acids.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-498.pdf

Polyploid fish and shellfish: Production, biology and applications to aquaculture for performance improvement and genetic containment
Provedor de dados: 5
Autores: Piferrer, Francesc; Beaumont, Andy; Falguiere, Jean-claude; Flajshans, Martin; Haffray, Pierrick; Colombo, Lorenzo.
Polyploids can be defined as organisms with one or more additional chromosome sets with respect to the number most frequently found in nature for a given species. Triploids, organisms with three sets of homologous chromosomes, are found spontaneously in both wild and cultured populations and can be easily induced in many commercially relevant species of fish and shellfish. The major consequence of triploidy is gonadal sterility, which is of advantage in the aquaculture of molluscs since it can result in superior growth. In fish, the induction of triploidy is mainly used to avoid problems associated with sexual maturation such as lower growth rates, increased incidence of diseases and deterioration of the organoleptic properties. Triploidy can also be used...
Tipo: Text
Palavras-chave: GMO; Transgenic containment; Genetic containment; Reproductive containment; Hybridisation; Sterility; Fish; Shellfish; Fish farming; Aquaculture; Tetraploidy; Triploidy; Polyploidy.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6648.pdf

Natural factors to consider when using acetylcholinesterase activity as neurotoxicity biomarker in Young-Of-Year striped bass (Morone saxatilis)
Provedor de dados: 5
Autores: Durieux, Eric; Farver, Thomas B.; Fitzgerald, Patrick S.; Eder, Kai J.; Ostrach, David J.
Acetylcholinesterase (AChE) activity is one of the most common biomarkers of neurotoxicity used in aquatic organisms. However, compared to its extensive use as biomarker, the effects of natural factors onAChE activity remain unclear especially in estuarine fishes. The aim of this study was to evaluate the effects of natural factors on AChE activity of striped bass (Morone saxatilis) juveniles. Brain AChE activity was measured in YOY (Young-Of-Year) individuals collected monthly from August 2007 to January 2008 at 12 different sites in the San Francisco Estuary system. The spatio-temporal variability of AChE was analyzed relative to water temperature and salinity as well as fish size. AChE activity was highly positively correlated with water temperature and...
Tipo: Text
Palavras-chave: Fish; Biomarker; Acetylcholinesterase; Brain; Temperature; Salinity; Size.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00008/11939/8642.pdf

Responses of the European flounder (Platichthys flesus) to a mixture of PAHs and PCBs in experimental conditions
Provedor de dados: 5
Autores: Dupuy, Celie; Galland, Claire; Devaux, Alain; Bony, Sylvie; Loizeau, Veronique; Danion, Morgane; Pichereau, Vianney; Fournier, Michel; Laroche, Jean.
A multibiomarker approach was developed to evaluate the juvenile European flounder responses to a complex mixture of 9 polycyclic aromatic hydrocarbons (PAHs) and 12 polychlorinated biphenyls (PCBs). Exposure was performed through contaminated food pellets displaying: (1) PAH and PCB levels similar to those detected in the heavily polluted Seine estuary, respectively in sediments and in flatfish and (2) ten times these concentrations. Several biomarkers of the immune system (e.g., lysozyme concentration and gene expression of complement component C3 and TNF-receptor), DNA damage (e.g., Comet assay), energetic metabolism (e.g., activity of cytochrome C oxidase), detoxification process (e.g., cytochrome P450 1A1 expression level: CYP1A1; betaine homocysteine...
Tipo: Text
Palavras-chave: Mixture of contaminants; Fish; Biomarker; Immunotoxicity; Detoxification process; DNA damage; PAHs; PCBs.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00188/29914/28374.pdf

Occurrence and role of lactic acid bacteria in seafood products
Provedor de dados: 5
Autores: Leroi, Francoise.
Lactic acid bacteria (LAB) in fish flesh has long been disregarded because the high post-mortem pH, the low percentage of sugars, the high content of low molecular weight nitrogenous molecules and the low temperature of temperate waters favor the rapid growth of pH-sensitive psychrotolerant marine Gram-negative bacteria like Pseudomonas, Shewanella and Photobacterium. In seafood packed in both vacuum (VP) and modified atmosphere (MAP) packaging commonly CO2 enriched, the growth of the Gram-negative aerobic bacteria group (predominantly pseudomonads) is effectively inhibited and the number reached by LAB during storage is higher than that achieved in air but always several log units lower than the trimethylamine oxide (TMA-O) reducing and CO2-resistant...
Tipo: Text
Palavras-chave: Lactic acid bacteria; Fish; Spoilage; Biopreservation; Probiotic; Fermentation.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00006/11750/8447.pdf

Modeling larval dispersal for the gilthead seabream in the northwestern Mediterranean sea
Provedor de dados: 5
Autores: Lett, Christophe; Barrier, Nicolas; Ourmières, Yann; Petit, Cécile; Labonne, Maylis; Bourjea, Jerome; Darnaude, Audrey M.
To investigate dispersal and connectivity between spawning and lagoon nursery habitats of the gilthead seabream, Sparus aurata, in the Gulf of Lions (northwestern Mediterranean Sea), we modeled the potential transport of the species’ larvae between its supposed main spawning site in the region (the Planier Island) and two of its main local nursery areas (the coastal lagoons of Thau and Salses-Leucate). Passive larval drift simulations using a dispersal biophysical model showed a large variability in the possible trajectories from spawning to nursery areas and in the predicted ages for larvae arrival on the two nursery sites. The most common ages at arrival obtained in the simulations (20–60 days) are broadly consistent with previous modeling studies but...
Tipo: Text
Palavras-chave: Sparus aurata; Gulf of Lions; Fish; Larvae; Models-hydrodynamic; Biophysical model; Connectivity; Otolith.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00513/62470/66903.pdf

Otolith fingerprints as natural tags to identify juvenile fish life in ports
Provedor de dados: 5
Autores: Bouchoucha, Marc; Pecheyran, C.; Gonzalez, Jean-louis; Lenfant, P.; Darnaude, A. M.
The construction of ports has caused substantial habitat destruction in coastal areas previously used as nursery grounds by many fish species, with consequences to fish stocks. These artificial coastal areas might provide alternative nursery habitats for several species for juvenile fish abundances and growth in ports, although their contribution to adult stocks had never been estimated. The variability of otolith composition in the juveniles of two Diplodus species was investigated in three contrasting port areas and two adjacent coastal juvenile habitats of the Bay of Toulon (northwestern Mediterranean) in order to determine the possible use of otolith fingerprints as natural tags for the identification of juvenile fishes in ports. The global accuracy of...
Tipo: Text
Palavras-chave: Coastal areas; Nursery habitats; Fish; LA-ICPMS; Contamination.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00449/56051/57571.pdf

Intensive larval rearing trials of red drum (Sciaenops ocellata ) in Martinique (F.W.I.).
Provedor de dados: 5
Autores: Soletchnik, Patrick; Thouard, Emmanuel; Goyard, Emmanuel.
The red drum Sciaenops ocellata (Linneaus, 1766) was introduced in Martinique (F.W.I.) from the United States (Texas and Florida). Thirteen intensive larval rearing attempts, from 7 batches of imported eggs, have been conducted for two years.
Tipo: Text
Palavras-chave: Pisces; Growth; Larval development; Rearing; Hatching; Nutrition; Stocking density; Food conversion; Growth rate; Survival; Fingerlings; Fish; Eggs.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1434.pdf

Physiological responses during acute stress recovery depend on stress coping style in European sea bass, Dicentrarchus labrax.
Provedor de dados: 5
Autores: Ferrari, Sebastien; Rey, Sonia; Høglund, Erik; Øverli, Øyvind; Chatain, Beatrice; Mackenzie, Simon; Bégout, Marie-laure.
Individual stress coping style (reactive, intermediate and proactive) was determined in 3 groups of 120 pit tagged European seabass using the hypoxia avoidance test. The same three groups (no change in social composition) were then reared according to the standards recommended for this species. Then, 127 days later, individuals initially characterized as reactive, intermediate or proactive were submitted to an acute confinement stress for 30 min. Blood samples were taken to measure plasma cortisol levels 30 min (Stress30) or 150 min (Stress150) after the end of the confinement stress. Individuals were then sacrificed to sample the telencephalon in order to measure the main monoamines and their catabolites (at Stress30 only). Individuals from Stress150 were...
Tipo: Text
Palavras-chave: Fish; Behavior; Physiology; Personality; Brain; Transcriptomic.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00601/71330/69760.pdf

Trace element contamination in fish impacted by bauxite red mud disposal in the Cassidaigne canyon (NW French Mediterranean)
Provedor de dados: 5
Autores: Bouchoucha, Marc; Chekri, R.; Leufroy, A.; Jitaru, P.; Millour, S.; Marchond, N.; Chafey, C.; Testu, C.; Zinck, J.; Cresson, Pierre; Mirallès, F.; Mahe, A.; Arnich, N.; Sanaa, M.; Bemrah, N.; Guérin, T.
From 1966 to 2015, the Gardanne alumina refinery discharged some 20 million tons of bauxite residue (called red mud) into the Cassidaigne Canyon (northwest French Mediterranean) with impacts on local ecosystem functioning. Although these red muds contained high levels of trace elements (TE), in particular titanium (Ti), vanadium (V), aluminum (Al) and arsenic (As), surprisingly, their impacts on fish contamination levels and the risk related to fish consumption have been little studied until now. Here, 11 trace elements (Al, As, Cd, Cr, Co, Cr, Mn, Ni, Pb, Ti and V) were analyzed in muscle and, when possible, liver, from 1308 fish of 26 species from an impacted zone in the vicinity of the Cassidaigne Canyon and a reference zone, unaffected by red mud...
Tipo: Text
Palavras-chave: Trace element; Bioaccumulation; Arsenic speciation; ICP-MS; Fish; Industrial discharge.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00505/61618/65529.pdf

Traceability of aquatic animals
Provedor de dados: 5
Autores: Hastein, T; Hill, Bj; Berthe, Franck; Lightner, Dv.
Effective methods of traceability are urgently required for use in research as weil as in different types of aquaculture operations and to control trade in aquatic animais and praducts. In regard to the marking of fish, many different tagging methods have been described and the method to be used depends on the purpose and need for tagging. In contrast, for molluscs and crustaceans, only a few methods of marking such animais have been described, due to the practical difficulties. The authors first describe the different methods for tracing fish and fishery products, by means of external tags, such as Floy tags, Carlin tags and passive integrated transponder tags; chemical marking using inorganic substances su ch as silver nitrate or potassium nitrate,...
Tipo: Text
Palavras-chave: Aquatic animals; Crustacea; Fish; Genetic markers; Molluscs; Tags; Traceability.
Ano: 2001
URL: https://archimer.ifremer.fr/doc/2001/publication-2701.pdf

Nature-Based Tourism Elicits a Phenotypic Shift in the Coping Abilities of Fish
Provedor de dados: 5
Autores: Geffroy, Benjamin; Sadoul, Bastien; Bouchareb, Amine; Prigent, Sylvain; Bourdineaud, Jean-paul; Gonzalez-rey, Maria; Morais, Rosana N.; Mela, Maritana; Carvalho, Lucelia Nobre; Bessa, Eduardo.
Nature-based tourism is gaining extensive popularity, increasing the intensity and frequency of human-wildlife contacts. As a consequence, behavioral and physiological alterations were observed in most exposed animals. However, while the majority of these studies investigated the effects of punctual exposure to tourists, the consequences of constant exposition to humans in the wild remains overlooked. This is an important gap considering the exponential interest for recreational outdoor activities. To infer long-term effects of intensive tourism, we capitalized on Odontostilbe pequira, a short-lived sedentary Tetra fish who spends its life close to humans, on which it feeds on dead skin. Hence, those fish are constantly exposed to tourists throughout their...
Tipo: Text
Palavras-chave: Coping style; Ecotourism; Conservation; Behavior; Gene expression; Cortisol; Neurogenesis; Fish.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00423/53470/54366.pdf

Does broodstock nutritional history affect the response of progeny to different first-feeding diets? A whole-body transcriptomic study of rainbow trout alevins
Provedor de dados: 5
Autores: Lazzarotto, Viviana; Corraze, Genevieve; Larroquet, Laurence; Mazurais, David; Medale, Francoise.
The whole-body transcriptome of trout alevins was characterised to investigate the effects of long-term feeding of rainbow trout broodstock females a diet free of fishmeal and fish oil on the metabolic capacities of progeny. Effects were studied before first feeding and after 3 weeks of feeding diets containing different proportions of marine and plant ingredients. Feeding alevins plant-based diets resulted in lower fish body weight, irrespective of maternal nutritional history. No differences in whole-body lipids were found between treatments, and the tissue fatty acid profile strongly reflected that of the respective broodstock or first-feeding diets. We showed that the maternal diet history did not significantly affect expressions of any genes before...
Tipo: Text
Palavras-chave: Fish; Nutrition; Plant products; Fatty acids; Gene expression; Microarrays; Early stages.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00344/45552/46610.pdf

Impact of acute cadmium exposure on the trunk lateral line neuromasts and consequences on the "C-start" response behaviour of the sea bass (Dicentrarchus labrax L.; Teleostei, Moronidae)
Provedor de dados: 5
Autores: Faucher, Karine; Fichet, Denis; Miramand, Pierre; Lagardere, Jean-paul.
Behavioural responses of sea bass Dicentrarchus labrax were investigated after exposure to cadmium ions in laboratory-controlled conditions. The aim of this study was to discover whether environmental exposure to cadmium ions inactivates fish lateral line system neuromasts, and to determine the behavioural consequences of such a sensory blockage. For this, fish escape behaviour in response to an artificial water jet was recorded using a 25-frames s(-1) analog video camera before and after cadmium exposure. Experimental set up was tested with fish whose lateral line system was artificially inactivated by antibiotics (gentamicin and streptomycin). Histological analyses with scanning electron microscopy showed antibiotic treatment destroyed lateral line...
Tipo: Text
Palavras-chave: Escape behaviour; C start; Acute cadmium exposure; Neuromast; Lateral line system; Sea bass; Fish.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2283.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo-lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs
Provedor de dados: 5
Autores: Roman, William; Pelletier, Dominique.
• In order to assess the sustainability of fish resources in the Natural Marine Park of Mayotte (Western Indian Ocean), indicators and monitoring protocols must be determined. • This study relied on the underwater video technique STAVIRO for assessing fish communities and resources. A pilot survey was conducted in Nov. 2014 in the south-east quarter of the Mayotte lagoon, an area encompassing the marine reserves of Longogori, M’Bouzi and the Saziley Marine Park. Out of 115 stations collected, 104 were analysed for habitat and fish, based on a list of 527 species with fishing, ecological, or emblematic interest (cf. AMBIO/A/1). • 43 indicators were computed, analysed, and for some mapped. The PAMPA computing tool was used in this purpose. • 130 fish species...
Tipo: Text
Palavras-chave: Ichtyofaune; Pêche; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Océan Indien; Indicateur; Tableau de bord; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Western Indian Ocean; Indicator; Dashboard; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48421/48642.pdf

Does coastal lagoon habitat quality affect fish growth rate and their recruitment? Insights from fishing and acoustic surveys
Provedor de dados: 5
Autores: Brehmer, Patrice; Laugier, Thierry; Kantoussan, J.; Galgani, Francois; Mouillot, D.
Ensuring the sustainability of fish resources necessitates understanding their interaction with coastal habitats, which is becoming ever more challenging in the context of ever increasing anthropogenic pressures. The ability of coastal lagoons, exposed to major sources of disturbance, to provide resources and suitable habitats for growth and survival of juvenile fish is especially important. We analysed three lagoons with different ecological statuses and habitat quality on the basis of their eutrophication and ecotoxicity (Trix test) levels. Fish abundances were sampled using fishing and horizontal beaming acoustic surveys with the same protocols in the same year. The relative abundance of Anguilla anguilla, Dicentrarchus labrax or the Mugilidae group was...
Tipo: Text
Palavras-chave: Fish; Shallow water; Ecotoxicity; Lagoon; Habitat quality; Amphidromous.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00148/25963/24083.pdf

Review and practical use of genome mapping in aquacultured organisms. Position paper by the Working Group on the Application of Genetics in Fisheries and Mariculture (WGAGFM)
Provedor de dados: 5
Autores: Boudry, Pierre; Lapegue, Sylvie; Guyomard, R.
The Working Group on the Application of Genetics in Fisheries and Mariculture (WGAGFM) met in La Rochelle, France from 10-12 March, 2003. Seven persons representing six countries were present. Three terms of reference (ToR) were addressed, while one was deferred until the appropriate information was available for review. WGAGFM first considered ToR a) Review and report on the practical use of genome mapping in aquacultured organisms. Genome maps are used extensively in the production of selected strains of agriculture plants and livestock. Studies on the genome of aquatic animais have been summarised in the WG report. Genome mapping projects in aquaculture exist for most major species and linkage maps are now becoming available. WGAGFM produced four...
Tipo: Text
Palavras-chave: Conservation of genetic diversity; Triploids; Recommandation; Aquaculture; Fish; Genome mapping; Genetic.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/acte-3301.pdf

Quality assessment of ice-stored tropical yellowfin tuna (Thunnus albacares) and influence of vacuum and modified atmosphere packaging
Provedor de dados: 5
Autores: Dauchy Silbande, Adele; Adenet, Sandra; Smith-ravin, Juliette; Joffraud, Jean-jacques; Rochefort, Katia; Leroi, Francoise.
Metagenomic, microbial, chemical and sensory analyses of Thunnus albacares from Martinique and stored in ice (AIR – 0 °C), vacuum (VP – 4/8 °C) and modified atmosphere packaging (MAP – 4/8 °C) (70% CO2 – 30% O2) were carried out. The organoleptic rejection of AIR tuna was observed at day 13 when total bacterial counts equaled 106–107 CFU g−1. No extension of shelf-life was provided by VP and MAP. According to 16S rRNA gene sequence analyzed by Illumina MiSeq and PCR-TTGE, Rhodanobacter terrae was the main species of the freshly caught tuna. At the sensory rejection time, Brochothrix thermosphacta and Pseudomonas dominated the AIR products while B. thermosphacta alone or a mix of B. thermosphacta, Enterobacteriaceae and lactic acid bacteria (LAB) dominated...
Tipo: Text
Palavras-chave: Seafood; Fish; Microbiology; Sensory; NGS; 16S rRNA gene.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00344/45504/45056.pdf

Editorial: Remote Sensing for Aquaculture
Provedor de dados: 5
Autores: Gernez, Pierre; Palmer, Stephanie C. J.; Thomas, Yoann; Forster, Rodney.
Tipo: Text
Palavras-chave: Earth observation; Site selection; HAB risk assessment; Production monitoring; Ecological modeling; Kelp; Fish; Shellfish.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00675/78753/80921.pdf

Variation in Metabolic Rate among Individuals Is Related to Tissue-Specific Differences in Mitochondrial Leak Respiration
Provedor de dados: 5
Autores: Salin, Karine; Auer, Sonya K.; Rudolf, Agata M.; Anderson, Graeme J.; Selman, Colin; Metcalfe, Neil B.
Standard metabolic rate (SMR) and maximum metabolic rate (MMR) typically vary two-or threefold among conspecifics, with both traits assumed to significantly impact fitness. However, the underlying mechanisms that determine such intraspecific variation are not well understood. We examined the influence of mitochondrial properties on intraspecific variation in SMR and MMR and hypothesized that if SMR supports the cost of maintaining the metabolic machinery required for MMR, then the mitochondrial properties underlying these traits should be shared. Mitochondrial respiratory capacity (leak and phosphorylating respiration) and mitochondrial content (cytochrome c oxidase activity) were determined in the liver and white muscle of brown trout Salmo trutta of...
Tipo: Text
Palavras-chave: Brown trout; Fish; Liver; Oxygen consumption; White muscle.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00413/52497/53321.pdf

A polygenic hypothesis for sex determination in the European sea bass - Dicentrarchus labrax
Provedor de dados: 5
Autores: Vandeputte, Marc; Dupont Nivet, M; Chavanne, H; Chatain, Beatrice.
Polygenic sex determination, although suspected in several species, is thought to be evolutionarily unstable and has been proven in very few cases. In the European sea bass, temperature is known to influence the sex ratio. We set up a factorial mating, producing 5.893 individuals from 253 full-sib families, all reared in a single batch to avoid any between-families environmental effects. The proportion of females in the offspring was 18.3%, with a large variation between families. Interpreting sex as a threshold trait, the heritability estimate was 0.62 +/- 0.12. The observed distribution of family sex ratios was in accordance with a polygenic model or with a four-sex-factors system with environmental variance and could not be explained by any genetic...
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Fish; Growth; Heritability; Sex ratio.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3526.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo‐lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs. Annexe 1 : Fiches métriques : Influences du statut de pêche, du type géomorphologique et de l’habitat
Provedor de dados: 5
Autores: Roman, William; Pelletier, Dominique; Wickel, Julien; Giannasi, Paul.
• This work deals with coral reef fish resources and communities in the Natural Marine Park of Mayotte, Western Indian Ocean). It relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  • This document is complementary to the main assessment report:  William Roman and Dominique Pelletier, 2016. The STAVIRO video technique for monitoring fish resources and reef ecosystems in the Natural Marine Park of Mayotte (Western Indian Ocean). Pilot study and recommendations for monitoring. EXPLOCEAN-IFREMER Report.  • It pertains to the assessment of resources with respect to fishing pressure and factors related to local habitat and reef geomorphology. • It comprises the description of the metrics used for the assessment:...
Tipo: Text
Palavras-chave: Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Indicateur; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Indicator; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48422/48643.pdf

Estimation of genetic parameters of feed conversion ratio based on individual phenotypes and genomic data in sea bass
Provedor de dados: 5
Autores: Besson, Mathieu; Allal, Francois; Chatain, Beatrice; Vergnet, Alain; Clota, Frederic; Ferrari, Sebastien; Vandeputte, Marc.
We estimated genetic parameters of feed conversion ratio (FCR) and daily growth coefficient (DGC) using individual phenotypes measured in aquariums under a restricted feeding regime and genomic information on 2,722 SNP markers. The results showed a moderate heritability of both traits (0.26 for FCR and 0.41 for DGC) as well as close to unity negative genetic correlation between them. Thus, FCR of fish in aquariums could be improved by selecting fish for higher DGC. Nevertheless, these results must be taken with caution until we know whether individual FCR measured in aquariums also reflects the FCR of fish reared in groups.    
Tipo: Text
Palavras-chave: Feed efficiency; Fish; Genomics.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00446/55756/57416.pdf

Bioaccumulation of trace elements in pelagic fish from the Western Indian Ocean
Provedor de dados: 5
Autores: Kojadinovic, Jessica; Potier, Michel; Le Corre, Matthieu; Cosson, Richard P.; Bustamante, Paco.
Trace elements were analyzed in fish of commercial interest to determine their importance in marine systems of the Western Indian Ocean and their bioaccumulation patterns. The results are equivalent or lower than levels reported in ichthyofauna worldwide. Certain values of muscular Cd, Hg, Pb and Zn were, however, above thresholds for human consumption. Levels varied among tissues, species and fish length, but were seldom influenced by the nutritional condition of the fish, its gender and its reproductive status. Correlations between hepatic Hg and Se levels in Swordfish (r(2) = 0.747) and Yellowfin Tunas (r(2) = 0.226), and among metallothionein linking metals imply the existence of detoxification processes in these species. Level differences between fish...
Tipo: Text
Palavras-chave: Guidelines; Detoxification; Contamination; Fish; Metals.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2490.pdf

Primers and polymerase chain reaction conditions for DNA barcoding teleost fish based on the mitochondrial cytochrome b and nuclear rhodopsin genes
Provedor de dados: 5
Autores: Sevilla, Rafael G.; Diez, Amalia; Noren, Michael; Mouchel, Olivier; Jerome, Marc; Verrez-bagnis, Veronique; Van Pelt, Hilde; Favre Krey, Laurence; Krey, Grigorios; Bautista, José M.
This report describes a set of 21 polymerase chain reaction primers and amplification conditions developed to barcode practically any teleost fish species according to their mitochondrial cytochrome b and nuclear rhodopsin gene sequences. The method was successfully tested in more than 200 marine fish species comprising the main Actinopterygii family groups. When used in phylogenetic analyses, its combination of two genes with different evolutionary rates serves to identify fish at the species level. We provide a flow diagram indicating our validated polymerase chain reaction amplification conditions for barcoding and species identification applications as well as population structure or haplotyping analyses, adaptable to high-throughput analyses.
Tipo: Text
Palavras-chave: Teleost; Rhodopsin; PCR primers; Mitochondrial cytochrome b; Fish; DNA barcoding.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3034.pdf

The PPEAO experimental fishing dataset: Fish from West African estuaries, lagoons and reservoirs
Provedor de dados: 5
Autores: Simier, Monique; Ecoutin, Jean-marc; Tito De Morais, Luis.
Background This paper describes a dataset of fish, crustacean and mollusc occurrences extracted from the “Experimental Fishing” section of the IRD's PPEAO information system. PPEAO stands for “Fish communities and artisanal fisheries of West African estuarine, lagoon and freshwater ecosystems”. This database contains information collected using two different methods: experimental fishing and surveys of the artisanal fisheries that exploit these ecosystems. The database is accessible at http://ppeao.ird.fr. New information The current dataset is available on GBIF.org at 10.15468/ra4voa. It comprises the occurrences of 314 fish, crustacean and mollusc taxa collected in experimental sampling surveys of different aquatic ecosystems in West Africa between 1979...
Tipo: Text
Palavras-chave: Coastal area; Crustacean; Estuary; Experimental fishing; Fish; Lagoon; Mollusc; Reservoir lake; Tropical area; West Africa.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00482/59324/62086.pdf

Morphometric Differentiation of Two Nigerian Fish Species (Oreochromis niloticus and Lates niloticus) Using Principal Components and Discriminant Analysis
Provedor de dados: 77
Autores: Yakubu,A; Okunsebor,S. A.
Morphological differences between two close fish populations were investigated in Doma Dam, north central Nigeria using principal component and discriminant analyses. The purpose was to identify the two species correctly and assign them into distinct genetic groups. To achieve this, seven morphometric measurements (body weight, standard length, total length, head length, body depth, dorsal fin length and caudal fin length) were made on each of the studied 252 fish specimens (153 Oreochromis niloticus and 99 Lates niloticus). The analysis of variance showed that significantly (P&lt;0.05) higher values were recorded for Lates niloticus in all the body traits examined, except dorsal fin length. From the principal component analysis, the differences between...
Tipo: Journal article
Palavras-chave: Fish; Genotypes; Conservation; Morphological traits; Multivariate analysis; Nigeria.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400060

Embryonic Development of Bryconamericus caucanus (Characidae: Tetragonpterinae) under Laboratory Conditions
Provedor de dados: 77
Autores: Montoya,Andrés; Arias,Mauricio; Olivera-Angel,Martha.
In this study we describe the early stages of development of Bryconamericus caucanus under laboratory conditions. Mature females (mean weight 8.12 g) received two intraperitoneal doses of Carp Pituitary Extract (1st dose of 0.5 mg / kg at time 0 and 2nd dose of 5 mg / kg 12 h later), and mature males received a single dose of 0.5 mg / kg at the time of the 2nd dose to the females. Extrusion of eggs was performed at 152.25 Accumulated Thermal Units. Eggs of B. caucanus were yellow, round shaped, non-adhesive, and the perivitelline space after hydratation was moderate. Hatching occurred 28 h 20 min after fertilization (21C, 594.3 Accumulated Thermal Units). The morphological features of the egg and early embryo of B. caucanus were similar to previous reports...
Tipo: Journal article
Palavras-chave: Artificial breeding; Fish; Characiforms.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000300032

Some notes on the associated occurrence of the crab Cycloes Cristata (Brullé, 1837) (Brachyura: Calappidae) and two types of Benthic fish in the Canary Islands
Provedor de dados: 16
Autores: Hartog, J.C. den.
A concise survey is presented of the species of the crab genus Cycloes De Haan, 1837 (Brachyura: Calappidae). Notes are presented on the associated ocurrence, on shallow sandy bottoms in the Canary Islands (Lanzarote, Gran Canaria), of the eastern Atlantic Cycloes cristata (Brullé, 1837) and the fishes Bothus podus (De la Roche, 1809) (Bothidae), Trachinus draco L., 1758 and T. cf. araneus Cuvier, 1829 (Trachinidae).
Tipo: Article / Letter to the editor
Palavras-chave: Cycloes cristata (Brachyura; Calappidae); Associated occurrence; Fish; Bothus podus; Trachinus ssp; 42.74.
Ano: 1987
URL: http://www.repository.naturalis.nl/record/319393

Some helminth parasites of Epinephelus morio (Pisces: Serranidae) from the peninsula of Yucatan, Mexico
Provedor de dados: 16
Autores: Moravec, F.; Vidal-Martínez, V.M.; Aguirre-Macedo, M.L.
Moravec, F., V.M. Vidal-Martinez &amp; M.L. Aguirre-Macedo, 1995. Some helminth parasites of Epinephelus morio (Pisces: Serranidae) from the Peninsula of Yucatan, Mexico. Studies Nat. Hist. Caribbean Region 72: 55-68. One nematode species, Hysterothylacium eurycheilum, the acanthocephalan Gorgorhynchus clavatus and three larval nematodes, Anisakis typica, Hysterothylacium sp. and Capillariidae gen. sp. parasitizing the red grouper Epinephelus morio, from the Peninsula of Yucatán, South Mexico are described for the first time. New localities, a new host, and the parameters of infection for the five species of helminths are recorded in this paper.
Tipo: Article / Letter to the editor
Palavras-chave: Mexico.; Capillariidae; Gorgorhynchus; Helminths; Anisakis; Hysterothylacium; Fish.
Ano: 1995
URL: http://www.repository.naturalis.nl/record/503180

Acclimation of juvenile Mugil liza Valenciennes, 1836 (Mugiliformes: Mugilidae) to different environmental salinities
Provedor de dados: 83
Autores: Lisboa,Viviana; Barcarolli,Indianara F.; Sampaio,Luís A.; Bianchini,Adalto.
Survival and physiological parameters associated with metabolism and osmoregulation were evaluated in juveniles of the Lebranche mullet Mugil liza acclimated to different water salinities (5, 10, 20, 30, and 40‰) for 15 days. Room temperature (25ºC) and photoperiod (12L:12D) were fixed. Fish were fed twice-a-day with commercial diet (28% crude protein) until satiation. After acclimation, whole body oxygen consumption was measured and fish were euthanized and sampled for blood, gills, and liver. Whole body oxygen consumption and plasma osmolality did not change in the range of salinities tested. The isosmotic point was estimated as 412.7 mOsmol kg-1 (13.5‰). Gill Na+,K+-ATPase activity tended to be lower at 20 and 30‰, while liver glycogen content was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Glycogen; Na+; K+-ATPase; Osmoregulation; Oxygen consumption.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000300591

Spermiogenesis and spermatozoa ultrastructure in five species of the Curimatidae with some considerations on spermatozoal ultrastructure in the Characiformes
Provedor de dados: 83
Autores: Quagio-Grassiotto,Irani; Gameiro,Maria Carolina; Schneider,Tatiana; Malabarba,Luiz Roberto; Oliveira,Claudio.
Spermiogenesis in the curimatid species, Steindachnerina insculpta, Cyphocharax gillii, C. modestus, C. spilotus, and Potamorhina altamazonica, is characterized by lateral development of the flagellum, nuclear rotation, eccentric nuclear fossa formation, and chromatin compacted into thick fibers. These spermatozoa exhibit a spherical head containing a nucleus with the chromatin highly condensed into thick fibers with small electron-lucent areas, and no acrosome. The nuclear fossa is of the moderate type and eccentric and penetrated by the centriolar complex. The midpiece is small, has many elongate vesicles, and a short cytoplasmic channel. Mitochondria may be elongate, branched or C-shaped, and are separated from the initial segment of the axoneme by the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Spermatid; Sperm; Ultrastructure.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252003000100004

Comparative cytogenetics of Astyanax (Teleostei: Characidae) from the upper Paraguay basin
Provedor de dados: 83
Autores: Teixeira,Thais K. S. S.; Venere,Paulo C.; Ferreira,Daniela C.; Mariotto,Sandra; Castro,Jonathan P.; Artoni,Roberto F.; Centofante,Liano.
ABSTRACT Astyanax is one of the most abundant and diverse taxa of fishes in the Neotropical region. In order to increase the amount of cytogenetic information for Astyanax as well as to exhibit data to subsidize future taxonomic studies, this work analyzed three species of Astyanax: two species are cryptic, and are here reported to live in syntopy (A. abramis and A. lacustris); the first karyotype description for A. pirapuan is also presented. Cytogenetic analyzes reveal a diploid number of 2n=50 chromosomes for three species, yet with differences in their karyotype morphology. The physical mapping of 18S rDNA showed up to thirteen sites in A. pirapuan and two in A. abramis and A. lacustris. The physical mapping of 5S rDNA has proven to be an effective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryptic species; Fish; Karyotype; Species complex.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100214

A new species of Moenkhausia Eigenmann (Characiformes: Characidae) from the upper rio Machado at Chapada dos Parecis, rio Madeira basin, Brazil
Provedor de dados: 83
Autores: Ohara,William M.; Marinho,Manoela M. F.
ABSTRACT A new species of Moenkhausia is described from the upper rio Machado at Chapada dos Parecis, rio Madeira basin, Rondônia State, Brazil. Among congeners, the new species is similar to Moenkhausia chlorophthalma, M. cotinho , M. lineomaculata , M. plumbea, and M. petymbuaba by having dark blotches on the anterior portion of the body scales, which are absent in the remaining species of the genus. The new speciesdiffers from aforementioned species by possessing blue eyes in life, 15-18 branched anal-fin rays, and a well-defined, round caudal-peduncle spot that does not reach the upper and lower margins of the caudal peduncle and does not extend to the tip of the middle caudal-fin rays.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon basin; Fish; Moenkhausia cotinho; Ostariophysi; Taxonomy.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100001

Astyanax henseli, a new name for Tetragonopterus aeneus Hensel, 1870 from southern Brazil (Teleostei: Characiformes)
Provedor de dados: 83
Autores: Melo,Filipe A. G. de; Buckup,Paulo A.
Tetragonopoterus aeneus Hensel (1870) is removed from synonymy with Astyanax fasciatus (Cuvier, 1819), revalidated and redescribed as A. henseli to avoid homonymy. Astyanax henseli differs from A. fasciatus stricto sensu and other Astyanax species by the presence of two to four maxillary teeth, two vertically-elongated humeral spots, dentary tooth cusps positioned close to one another, and the slender form of the dentary teeth.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Astyanax fasciatus; Species complex; Rio Jacuí; Fish; Freshwater.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000100003

Estimating size at first maturity (L50) from Gonadossomatic Index (GSI) data
Provedor de dados: 83
Autores: Fontoura,Nelson F.; Braun,Aloísio S.; Milani,Paulo Cesar C.
Correct estimates of size at first maturity (L50) are useful for fish stock management and different methods have been proposed. In this study we propose the use of a modified logistic to estimate L50, including a variable asymptote (A). We also test the use of the Gonadossomatic Index (GSI) as a flag to establish the reproductive status of each female fish. The method is demonstrated using GSI data for four Neotropical fish species: Characiformes: Astyanax fasciatus (n = 473) and Oligosarcus robustus (n = 297); Siluriformes: Loricariichthys anus (n = 427) and Trachelyopterus lucenai (n = 195). The results were stable enough to propose this method be used for other fish species with different life histories and with a relatively unconstrained sampling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Reproduction; Patos lagoon; Logistic function.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200013

Karyotype differentiation and cytotaxonomic considerations in species of Serrasalmidae (Characiformes) from the Amazon basin
Provedor de dados: 83
Autores: Nakayama,Celeste Mutuko; Feldberg,Eliana; Bertollo,Luiz Antonio Carlos.
Six species of Serrasalmidae from the central Amazon, representatives of the genera Serrasalmus (S. elongatus, S. maculatus, S. cf. rhombeus, and S. rhombeus), Pygocentrus (P. nattereri), and Colossoma (C. macropomum), were analyzed regarding the distribution of the Ag-NORs, C-positive heterochromatin and 18S and 5S rRNA genes on the chromosomes. All specimens had 2n = 60 chromosomes, except S. cf. rhombeus, with 2n = 58, and C. macropomum with 2n = 54 chromosomes. The Ag-NORs were multiple and located on the short arms of subtelo-acrocentric chromosomes in all Serrasalmus species and in P. nattereri, but were found on metacentric chromosomes in C. macropomum. The 18S rDNA sites were usually coincident with Ag-NORs, although some species had a higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosomal evolution; Fish; Heterochromatin; Piranhas; Ribosomal genes.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100005

Analysis of artisanal fisheries in two reservoirs of the upper Paraná River basin (Southeastern Brazil)
Provedor de dados: 83
Autores: Novaes,José Luís Costa; Carvalho,Edmir Daniel.
We compared the artisanal fisheries, in terms of catch strategies, productivity, and gross per capita income, at two reservoirs: the Barra Bonita (an eutrophic reservoir with some introduced species), and the Jurumirim (an oligotrophic reservoir, with no introduced species). Published data and structured interviews with fishers were used to evaluate fishing activity, fish biomass, and the financial performance of the fisheries. In the Barra Bonita Reservoir we analysed data from 745 fishing trips, from which 86,691.9 kg of fish were landed, with a mean CPUE of 62.4 kg/fisher-1 day-1. The main type of fish caught was tilapia (71,513.5 kg; CPUE of 51.5 kg/fisher-1 day-1), which constituted 82.5% of the biomass caught. In the Jurumirim Reservoir, we analysed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Barra Bonita Reservoir; Fish; Jurumirim Reservoir; Paranapanema River; Tietê River.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200403

New Astyanax from the upper rio Tapajós drainage, Central Brazil (Characiformes: Characidae)
Provedor de dados: 83
Autores: Bertaco,Vinicius A.; Garutti,Valdener.
Astyanax utiariti, new species, is described from the upper rio Tapajós drainage, Mato Grosso, Brazil. Astyanax utiariti has a horizontally oval black humeral spot, a lozenge-shaped caudal-peduncle spot, continuing to the tip of the middle caudal-fin rays, and two brown bars in the humeral region that allows its inclusion in the A. bimaculatus species group. It also possesses a black stripe extending along midlateral body. The new species is distinguished from its congeners by a reticulate scale pattern, a black longitudinal stripe, toothless maxilla, larger dentary teeth and teeth of the inner row of the premaxilla with five to seven cusps, body depth 33.3-39.9% of standard length (SL), head length (HL) 23.9-26.4% of SL, caudal-peduncle depth 12.0-13.4%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical; Amazon basin; Astyanax bimaculatus; Taxonomy; Fish.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000100003

Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streams
Provedor de dados: 83
Autores: Nimet,Jardel; Amorim,João Paulo de Arruda; Delariva,Rosilene Luciana.
ABSTRACT This study evaluated gills and liver of Astyanax bifasciatus as histological biomarkers for biomonitoring of streams along areas with different land uses. The fish were collected by electrofishing in six streams in the basin of the lower Iguaçu River. The objective was to correlate the presence and degree of histopathological alterations of gills and liver with the environmental variables among streams along different land uses. The low frequency of histopathological alterations found in fish from the forest streams suggested normal organ functioning. In fish from the rural and urban streams, the histopathological alterations occurred were in higher frequency, indicated light to moderate damage in gills and liver of fish from the rural streams,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomarkers; Fish; Histopathology; Lotic environments; Urban impact.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100216

Biogeography and comparative cytogenetics between two populations of Hoplias malabaricus (Bloch, 1794) (Ostariophysi: Erythrinidae) from coastal basins in the State of Bahia, Brazil
Provedor de dados: 83
Autores: Jacobina,Uedson Pereira; Affonso,Paulo Roberto Antunes de Mello; Carneiro,Paulo Luiz Souza; Dergam,Jorge Abdala.
The species Hoplias malabaricus is a predator fish found in nearly all cis-Andean basins. From a cytogenetic point of view, this species comprises, at least, seven differentiated karyomorphs. Several localities have been formerly analyzed in Brazil, however, some regions, such as Bahia State, remain underrepresented. Recently, the Brazilian Environment Ministry classified both Itapicuru and Contas river basins (entirely located within Bahia territory) as priority conservation areas, whose biodiversity status lacks enough information. Therefore, the goal of the present work was to characterize, cytogenetically, populations of H. malabaricus from both basins, by using conventional staining, Ag-NOR and C-banding techniques. All specimens presented a diploid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Karyomorphs; Brazilian coastal rivers; Geographic distribution.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400009

Microsatellite variation and population genetic structure of a neotropical endangered Bryconinae species Brycon insignis Steindachner, 1877: implications for its conservation and sustainable management
Provedor de dados: 83
Autores: Matsumoto,Cristianne Kayoko; Hilsdorf,Alexandre Wagner Silva.
Piabanha (Brycon insignis) is a freshwater fish species from the drainages in Southeastern Brazil. During the 1950s, it was an important economic and food resource for local populations, but dramatic and continuous environmental degradation seriously jeopardized the B. insignis populations in the region. Microsatellite markers were used to assess the genetic structure of wild populations of B. insignis and compare the genetic variability and integrity of the wild populations with a captive population. Samples of DNA from 208 specimens from geographically isolated populations were analyzed. Population genetic structure was investigated using F ST, R ST estimates as well as AMOVA. All five loci used in this study were polymorphic with observed heterozygosity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piabanha; Paraíba do Sul basin; Conservation; STR; Fish.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000300006

Cytogenetic and molecular markers reveal the complexity of the genus Piabina Reinhardt, 1867 (Characiformes: Characidae)
Provedor de dados: 83
Autores: Pazian,Marlon Felix; Pereira,Luiz Henrique Garcia; Shimabukuru-Dias,Cristiane Kioko; Oliveira,Claudio; Foresti,Fausto.
Cytogenetic and molecular analyses were carried out in fish representative of the genus Piabina. This study specifically involved the species P. argentea and P. anhembi collected from areas of the Paranapanema and Tietê River basins, Brazil. Our findings suggest that fish classified as Piabina argentea in the Paranapanema and Tietê Rivers may represent more than one species. The samples analyzed differed by cytogenetic particularities and molecular analyses using partial sequences of the genes COI and CytB as genetic markers revealed three distinct groups of P. argentea with genetic distances sufficient to support the conclusion that the three samples analyzed are three distinct taxonomic units.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA Barcoding; Freshwater fishes; Fish; MtDNA; 18S rDNA; 5S rDNA.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200008

NTPDase and acetylcholinesterase activities in silver catfish, Rhamdia quelen (Quoy &amp;amp; Gaimard, 1824) (Heptapteridae) exposed to interaction of oxygen and ammonia levels
Provedor de dados: 83
Autores: Kaizer,Rosilene Rodrigues; Loro,Vania Lúcia; Schetinger,Maria Rosa Chitolina; Morsch,Vera Maria; Tabaldi,Luciane Almeri; Rosa,Cíntia Saydelles da; Garcia,Luciano de Oliveira; Becker,Alexssandro G.; Baldisserotto,Bernardo.
The effects of various levels of oxygen saturation and ammonia concentration on NTPDase (ecto-nucleoside triphosphate diphosphohydrolase, E.C. 3.6.1.5) and acetylcholinesterase (AChE, E.C. 3.1.1.7) activities in whole brain of teleost fish (Rhamdia quelen) were investigated. The fish were exposed to one of two different dissolved oxygen levels, including high oxygen (6.5 mg.L-1) or low oxygen (3.5 mg.L-1), and one of two different ammonia levels, including high ammonia (0.1 mg.L-1) or low ammonia (0.03 mg.L-1) levels. The four experimental groups included the following (A) control, or high dissolved oxygen plus low NH3; (B) low dissolved oxygen plus low NH3; (C) high dissolved oxygen plus high NH3; (D) low dissolved oxygen plus high NH3. We found that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; ATP; ADP; AChE.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400012

Intermittent sustained swimming in 'matrinxã' Brycon amazonicus (Bryconidae: Bryconinae): hematological and metabolic responses
Provedor de dados: 83
Autores: Fabrizzi,Fernando; Moraes,Gilberto; Hackbarth,Araceli; Almeida,Luciana Cristina de; Arbeláez-Rojas,Gustavo; Nunes,Cleujosí da Silva.
In fish, studies on a wide variety of physiological effects of exercise have been reported since a long time. It has been attributed special attention to some types of exercise, however, its application as a healthful practice in the rearing and welfare of farming fish is rising in last few years. In this particular, long-term intermittent sustained swimming (ISS) has been not yet explored. In this work, the freshwater fish Brycon amazonicus was submitted to (ISS) for 30 days at velocity of 1.0 body-length sec-1 for 12h interspaced by 12h under still water. Hematology and metabolism were evaluated. Exercised fish decreased 30% the erythrocyte number and hemoglobin was unvaried. The stores of liver glycogen and muscular triacylglycerol (TAG) were increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adaptation; Exercise; Fish; Glycogen; Metabolism; Triacylglycerol.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200425

Glyphosate-based herbicide affects biochemical parameters in Rhamdia quelen (Quoy &amp;amp; Gaimard, 1824 and) Leporinus obtusidens (Valenciennes, 1837)
Provedor de dados: 83
Autores: Loro,Vania Lucia; Glusczak,Lissandra; Moraes,Bibiana S.; Leal,Claudio A. M.; Menezes,Charlene; Murussi,Camila R.; Leitemperger,Jossiele; Schetinger,Maria Rosa C.; Morsch,Vera Maria.
Rhamdia quelen (silver catfish) and Leporinus obtusidens (piava) were exposed to a commercial formulation Roundup(r), a glyphosate-based herbicide at concentrations of 0.2 or 0.4 mg/L for 96 h. The effects of the herbicide were analyzed on the alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities and glucose in plasma, glucose and protein in the mucus layer, nucleotide hydrolysis in the brain, and protein carbonyl in the liver. The parameters were chosen, owing to a lack of information concerning integrated analysis, considering oxidative damage parameters, liver damage, and effects on the mucus layer composition and triphosphate diphosphohydrolase (NTPDase) activities. Plasmatic glucose levels were reduced in both species, whereas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Mucus; Nucleotidases; Plasma; Protein carbonyl.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100229

Kidney anatomy, histology and histometric traits associated to renosomatic index in Gymnotus inaequilabiatus (Gymnotiformes: Gymnotidae)
Provedor de dados: 83
Autores: Fernandes,Carlos Eurico; Marcondes,Sandrieley Fernanda; Galindo,Gizela Melina; Franco-Belussi,Lilian.
ABSTRACT The Gymnotus inaequilabiatus is a Neotropical fish widely distributed in marginal areas of bays. The aim of this study was to describe the main histological and histopathological traits in the head and exocrine kidney. Here, histometric and structural density techniques were associated with renosomatic index (RSI). The kidney was processed for light microscopy. Lipofuscin and hemosiderin content were visually estimated in the melonomacrophages centers (MMCs). All the biometric body variables were correlated with RSI, especially the kidney weight and gross lesions count. The general architecture of head and exocrine kidney was similar to that described for other teleost species. MMCs were prevalent in both portions and correlated with RSI in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Pathology; Renal morphology; Stereology; Teleost.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500207

Genetic identification of interspecific hybrid of Neotropical catfish species (Pseudoplatystoma corruscans vs. Pseudoplatystoma reticulatum) in rivers of Mato Grosso do Sul State, Brazil
Provedor de dados: 83
Autores: Vaini,Jussara Oliveira; Grisolia,Alexéia Barufatti; Prado,Fernanda Dotti do; Porto-Foresti,Fábio.
Hybrids of the species Pseudoplatystoma corruscansvs.Pseudoplatystoma reticulatum are extensively traded because they are more docile and precocious compared to their parents. This study aimed to identify the occurrence of hybrid 'Surubim' in rivers of the State of Mato Grosso do Sul, applying molecular techniques. Pseudoplatystoma corruscans, Pseudoplatystoma reticulatum and hybrid 'Surubim' were detected using multiplex PCR and PCR-RFLP in RAG2, GLOBIN, EF1α, 18S rRNA nuclear genes, and mitochondrial 16S rRNA gene. The results revealed the presence of F1 hybrids in rivers and the occurrence of genetic introgression, evidenced by the Post-F1 hybrids. Furthermore, discrepancies between the morphological and genetic identification were observed,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Fish; Hybridization; Introgression; Molecular markers.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000300635

The introduction of the African catfish Clarias gariepinus (Burchell, 1822) into Brazilian inland waters: a growing threat
Provedor de dados: 83
Autores: Rocha,Gecely Rodrigues Alves.
The biology of the introduced species Clarias gariepinus in lagoa Encantada (Ilhéus, Bahia State) was studied. Samples were obtained with gillnets between May 2002 and February 2004. All individuals caught exceeded the average length at first maturity cited in literature. Males and females in maturation stages indicate that the species is already established in the lake.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater; Fish; Exotic species; Sharptooth catfish.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400020

Can weight/length relationship predict size at first maturity? A case study with two species of Characidae
Provedor de dados: 83
Autores: Fontoura,Nelson F.; Jesus,Anamélia S.; Larre,Gabriel G.; Porto,Juliana R.
A weight/length relationship was established for Astyanax jacuhiensis (Cope, 1894) (n = 370) and Cheirodon ibicuhiensis Eigenmann, 1915 (n = 701), from samples taken monthly in Fortaleza Lagoon, Cidreira, Rio Grande do Sul, from December 1991 through November 1992. Both species showed a polyphasic allometric growth pattern, each stanza described by an independent power equation controlled by a switch function. For C. ibicuhiensis, this change in the growth pattern occurred at 2.948 cm standard length (SL), close to published sizes for the attainment of female maturity. The change in the growth pattern of A. jacuhiensis (SL = 3.481 cm) was below the predicted size at first maturity, and merits further investigation. Although not conclusive, our data suggest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allometric growth; Polyphasic growth; Growth stanza; Reproduction; Fish.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000400013

Anesthesia and transport of fat snook Centropomus parallelus with the essential oil of Nectandra megapotamica(Spreng.) Mez
Provedor de dados: 83
Autores: Tondolo,Juliana Simoni Moraes; Amaral,Lúcio de Paula; Simões,Larissa Novaes; Garlet,Quelen Iane; Schindler,Bianca; Oliveira,Teodoro Martins; Silva,Bruno Ferreira da; Gomes,Levy de Carvalho; Baldisserotto,Bernardo; Mallmann,Carlos Augusto; Heinzmann,Berta Maria.
This study analyzed the chemical composition and anesthetic potential of essential oil (EO) of Nectandra megapotamica in fat snook (Centropomus parallelus). For the extraction of EO by hydrodistillation, leaves were separated in young (EO-Y) or old (EO-O), and the chemical composition of the EOs was determined by CG-MS. The anesthetic potential was assessed by the evaluation of induction and recovery time of anesthesia and stress response from anesthesia and transport. Three experiments were carried out: i) four different concentrations of each EO were tested to evaluate anesthesia induction and recovery time; ii) two concentrations of EO-O were tested for the evaluation of its effects on stress parameters (glucose, lactate, and Na+ and K+ plasma levels)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Ionoregulation; Sedation; Stress; Terpenoids.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300667

Life-history of the South American darter, Characidium pterostictum (Crenuchidae): evidence for small scale spatial variation in a piedmont stream
Provedor de dados: 83
Autores: Becker,Fernando Gertum; Carvalho,Silene de; Hartz,Sandra Maria.
The present study compares the reproduction, condition and size of the small characiform fish, Characidium pterostictum, sampled at close sites differing in severity of flash flood effects. Data were obtained from seasonal samples in two sites situated 8 km apart in the same stream. In the upstream site, habitat is more severely affected by flash floods than in the downstream site, and this difference was hypothesized to produce differences in life history and individual reproduction trade-off patterns, as predicted by life-history theory. The results provided evidence for small-scale spatial variation in life-history and trade-off patterns within the studied population. At the most severely disturbed site, C. pterostictum displayed a trade-off pattern...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Condition; Reproductive trade-off; Natural disturbance.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400007

Temporal distribution of ichthyoplankton in the Ivinhema River (Mato Grosso do Sul State/ Brazil): influence of environmental variables
Provedor de dados: 83
Autores: Reynalte-Tataje,David Augusto; Nakatani,Keshiyu; Fernandes,Rodrigo; Agostinho,Angelo Antônio; Bialetzki,Andréa.
Information on ichthyoplankton is an important tool in determining reproduction periods that - if associated to environmental variables - allows for inferences about the factors that regulate their intensity, beginning, and ending. In this context, this study aims to establish (i) ichthyoplankton composition; (ii) temporal variations in the overall density of eggs and larvae and among the most important taxa; and (iii) the influence of some abiotic and biotic variables on these organisms' abundance. Ichthyoplankton sampling was undertaken during the period between April 2005 and March 2006 at the Ivinhema River, upper Paraná River basin (MS/Brazil). Differences in the ichthyoplankton's temporal variation were evaluated using unifactorial ANOVAs. Principal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryconamericus stramineus; Fish; Floodplain; Larvae; Plagioscion squamosissimus.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200021

Feeding ecology of Leporinus taeniofasciatus (Characiformes: Anostomidae) before and after installation of a hydroelectric plant in the upper rio Tocantins, Brazil
Provedor de dados: 83
Autores: Albrecht,Miriam P.; Pellegrini-Caramaschi,Erica.
The feeding ecology of Leporinus taeniofasciatus in the upper rio Tocantins was characterized before (river phase) and after (reservoir phase) its impoundment by the Serra da Mesa Hydroelectric Dam. The importance of each food item was given by the Alimentary Index (IAi), which combines the frequency of occurrence and volumetric methods. A significant difference in the diet of L. taeniofasciatus between seasons in the river phase, detected by a multivariate analysis of variance, was not kept when the reservoir was formed. Its feeding activity, verified through the percentage of stomachs with different degrees of fullness, was not affected by the impoundment. Leporinus taeniofasciatus was able to incorporate terrestrial food items to its diet when they...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Fish; Neotropical; Reservoir.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252003000100006

Karyotype description and evidence of multiple sex chromosome system X1X1X2X2/X1X2Y in Potamotrygon aff. motoro and P. falkneri (Chondrichthyes: Potamotrygonidae) in the upper Paraná River basin, Brazil
Provedor de dados: 83
Autores: Cruz,Vanessa Paes da; Shimabukuro-Dias,Cristiane Kioko; Oliveira,Claudio; Foresti,Fausto.
Cytogenetic analysis of Potamotrygon aff. motoro and P. falkneri indicated the occurrence of an X1X1X2X2/X1X2 Y multiple sex chromosome system in both species, with 2n = 66 chromosomes for females and 2n = 65 chromosomes for males. The nucleolus organizer regions (NORs) identified using Ag-NOR technique showed that both species have multiple Ag-NORs (5 to 7 chromosomes stained). C-banding technique indicated the presence of heterochromatic blocks in the centromeric regions of almost all chromosomes in both species. Through this study there was evidence of heterogeneity in the karyotypes, which suggests that chromosomal rearrangements such as inversions and/or translocations occurred during the chromosomal evolution in two species of this genus.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytogenetic; NOR; C-band; Fish; Stingrays.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000100020

Astyanax paranae Eigenmann, 1914 (Characiformes: Characidae) in the Alagados Reservoir, Paraná, Brazil: diet composition and variation
Provedor de dados: 83
Autores: Abelha,Milza Celi Fedatto; Goulart,Erivelto; Kashiwaqui,Elaine Antoniassi Luiz; Silva,Marlene Rodrigues da.
Aspects of the feeding ecology of a small characin, Astyanax paranae, were studied during 1996/1997 and 1998/1999 in the Alagados Reservoir, Paraná, Brazil (25º01'50.0'' S; 050º03'41.9'' W). Fishes were quarterly captured from the reservoir's riverine and lacustrine zones and stomachs contents of 711 adult individuals were analyzed by volumetric method. Species' feeding spectrum and spatial, temporal and sexual variations on diet were evaluated. Data matrix was summarized by detrented correspondence analysis (DCA) and the axes scores from DCA were used as variables in one-way ANOVA of null models to test diet variations. Astyanax paranae fed on detritus/sediment, plant matter, algae and aquatic and terrestrial invertebrates. The time-space prevalence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Feeding; Dam; Detritivory; Freshwater.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000300006

Two new species of Hyphessobrycon (Teleostei: Characidae) from upper rio Tapajós basin on Chapada dos Parecis, central Brazil
Provedor de dados: 83
Autores: Carvalho,Tiago Pinto; Bertaco,Vinicius Araújo.
Two new species of Hyphessobrycon are described from the upper rio Tapajós basin, Mato Grosso, Brazil. Hyphessobrycon melanostichos is distinguished from its congeners by the combination of a conspicuous longitudinal broad black band beginning on the posterior margin of orbit and reaching the tip of middle caudal fin rays, a distinct vertically elongate humeral spot, and 16 to 18 branched anal-fin rays. Hyphessobrycon notidanos is distinguished from its congeners by the combination of an elongate dorsal fin in mature males, a vertically elongate humeral spot, 2-4 maxillary teeth, iii,8 dorsal-fin rays, and 16 to 21 branched anal-fin rays.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical; Characiformes; Amazon; Taxonomy; Endemism; Fish.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000300001

Age-associated hemogram and ultrastructural leukocyte morphology in Pygocentrus nattereri (Characiformes: Serrasalmidae) from the Brazilian Pantanal
Provedor de dados: 83
Autores: Siqueira,Mayara S.; Leão,Taynara R. F.; Rodrigues,Robson A.; Farias,Karine N. N.; Silva,André L. N.; Marcondes,Sandriely F.; Veiga,Marcelo L.; Franco-Belussi,Lilian; Fernandes,Carlos E.
ABSTRACT Pygocentrus nattereri is a carnivorous fish widely distributed in the Brazilian wetland and occupies different river strata. Based on the sexual maturity, the standard length (SL) has been used to categorize age and physiological attributes. However, hematological parameters and their relationship with age and growth features are unknow. Here, the aim was to evaluate the hematological profile and leukocyte data of juvenile and adult specimens, associating it with SL. Specimens of both sexes were weighted, and SL were measured for classify as juveniles (SL ≤16.0 cm) and adults (SL ≥16.1 cm). Blood was collected to perform the hemogram, for leukocyte quantification and ultrastructural descriptions. In general, hemogram values and leukocyte,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Hematology; Leukocyte ultrastructural morphology; Standard length.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000100216

Two new species of Apistogramma Regan (Teleostei: Cichlidae) from the rio Trombetas, Pará State, Brazil
Provedor de dados: 83
Autores: Kullander,Sven O; Ferreira,Efrem J. G.
Apistogramma angayuara is described from the rio Trombetas close to the cachoeira Vira Mundo where it is found in association with rapids. It is assigned to the A. pertensis species group, distinguished by the following characters in combination: three prominent stripes composed of dark spots along the sides of the abdomen, 2 vs. 3 postlachrymal infraorbital pores, 5 vs. 4 dentary pores, low dorsal fin in adult males, and presence of a caudal spot. It is the smallest species of Apistogramma reported so far, with the largest male 24.7 mm SL and the largest female 22.7 mm SL, and the first cichlid species found with a significant proportion of rhizopods in the stomach content. Apistogramma salpinction is described from lentic habitats at the margin of road...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonia; Fish; Microphagy; Neotropical; Rheophily; Taxonomy.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000300003

Divergence in energy sources for Prochilodus lineatus (Characiformes: Prochilodontidae) in Neotropical floodplains
Provedor de dados: 83
Autores: Benedito,Evanilde; Santana,Ana Rute A.; Werth,Martin.
ABSTRACT The stable carbon isotopic variability and the contributions of autochthonous (sediment microbial biomass, phytoplankton, and periphyton) and allochthonous (soil microbial biomass) sources available to the detritivorous fish Prochilodus lineatus were investigated in three environments of the floodplain of the Upper Paraná River. The isotopic composition of carbon sources and fish varied significantly among the studied environments. The autochthonous resources, represented by the phytoplankton, were the most assimilated by the species, followed by periphyton and sediment microbial biomass. The species used the sources differently in each environment. This study suggests that the inherent characteristics of this area, as well as the size of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic ecosystems; Carbon sources; Fish; Organic matter; Stable isotopes.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000400204

Présentation du conjoint d'introduction de mesure de maintien et d'augmentation des ressources halieutiques
Provedor de dados: 20
Autores: Coly, K.
En procédant au lancement du programme d'immersion des récifs artificiels le 24 juin 2002 lorsque le projet conjoint d'introduction de mesures de maintien et d'augmentation des ressources halieutiques dans la zone côtière du Sénégal entrait dans sa phase active, le ministre des pêches d'alors avait conscience que bien avant ce projet. La fédération sénégalaise de pêche sportive était résolument engagée à côté d'autres institutions.
Tipo: Report
Palavras-chave: Saline water; Salinity effects; Fee fishing; Fish; Fish culture; Artificial reefs; Habitat improvement; Fish; Fish culture; Saline water; Artificial reefs; Habitat improvement; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_2918; Http://aims.fao.org/aos/agrovoc/c_16376; Http://aims.fao.org/aos/agrovoc/c_25395; Http://aims.fao.org/aos/agrovoc/c_3455.
Ano: 2004
URL: http://hdl.handle.net/1834/1714

Efectos del ENOS sobre la temperatura superficial  del mar y la abundancia de larvas de peces en las  aguas oceánicas de Cuba
Provedor de dados: 20
Autores: Gutiérrez Delgado, A. R.; Alvarez Cruz, A.; Frías, M. del P.; Alfonso, I.
Esta investigación muestra los efectos del evento ENOS 1997-1998 en la temperatura  superficial del mar (TSM) y en la abundancia de larvas  de peces de las familias  Thunnidae, Carangidae y Lutjanidae en las aguas oceánicas adyacentes a Cuba. La data  histórica está integrada por 37 cruceros oceanográficos realizados entre los años 1966  y 1999. De ellos, 3 cruceros fueron realizados bajo el efecto del ENOS 1997-1998 en  los meses de diciembre de 1997, septiembre de 1998 y mayo de 1999. También fue  utilizada la serie de TSM desarrollada en  el Centro Meteorológico Nacional de la  NOAA para la cuadrícula de Cuba 23º-24ºN y 74º-85ºO entre los años 1966 y 1999.  Las anomalías térmicas de la TSM, durante septiembre de 1998, provocaron un  aumento tanto de la...
Tipo: Book
Palavras-chave: Temperature; Water levels; Spawning; Pelagic fish; Fish.
Ano: 2008
URL: http://hdl.handle.net/1834/5789

Estimación del crecimiento y mortalidad del chivo cabezón Ariopsis bonillai (Miles, 1945) (Pisces: Siluriformes: Ariidae), en la Ciénaga Grande de Santa Marta, Colombia
Provedor de dados: 20
Autores: Galvis-Cortés, O.D.
A partir de septiembre de 1981 y durante 14 meses consecutivos de muestreo en la Ciénaga Grande de Santa Marta, se capturaron 3477 ejemplares de chivo cabezón Ariopsis bonillai (Miles, 1945). Con base en estas capturas, se estimó la relación tallapeso para hembras y machos en forma separada y en conjunto. Se obtuvieron las curvas de crecimiento según von Bertalanffy en talla y peso para ambos sexos y también los valores preliminares de las tasas de mortalidad natural (M), total (Z) y por pesca (F) Se analiza la variación de estos resultados entre sexos como una función causaefecto, originada por el fenómeno de la incubación oral característico en la especie.
Tipo: Journal Contribution
Palavras-chave: Fish; Fishing; Growth curves; Size; Weight; Fish; Fishing; Size; Weight; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_26950; Http://aims.fao.org/aos/agrovoc/c_7093; Http://aims.fao.org/aos/agrovoc/c_8349.
Ano: 1984
URL: http://hdl.handle.net/1834/4033

Impactos del Huracán Ike sobre los peces arrecifales en el área turística Santa Lucía, Camagüey, Cuba.
Provedor de dados: 20
Autores: Durán Rodríguez, A.; Claro Madruga, R.
El Huracán Ike azotó la provincia de Camagüey, Cuba, el 8 de septiembre de 2008 con categoría II de la escala Saffir – Simpson, y el área de Santa Lucía fue una de las áreas más afectadas. Con el objetivo de evaluar los probables daños causados a las asociaciones de peces, del 21 al 28 de octubre de 2008 se repitieron muestreos en cuatro estaciones de la pendiente arrecifal (18-22 m de profundidad), que habían sido estudiadas poco antes del huracán (del 16 al 21 de julio de 2008). En cada estación se realizaron censos visuales de todas las especies, en seis transectos lineales de 50 m de largo por dos de ancho. Antes del ciclón, se encontró similar densidad de peces que en otras regiones del Archipiélago. Después del evento meteorológico se observó una...
Tipo: Journal Contribution
Palavras-chave: Fish; Population density; Hurricanes; Fish; Hurricanes; Population density; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_11650; Http://aims.fao.org/aos/agrovoc/c_6112.
Ano: 2009
URL: http://hdl.handle.net/1834/3406

Vergleich des Fortpflanzungsverhaltens einiger Pomacentriden, Cichliden und Centrarchiden (Pisces: Perciformes)
Provedor de dados: 20
Autores: Albrecht, H.
Comparando el comportamiento de reproducción de las tres familias percomorfas, Cichlidae, Pomacentridae y Centrarchidae, resultan relaciones claras entre las dos familias últimamente mencionadas. Las Cichlidae son diferentes de ellas. Sin embargo todavía no se deduce relaciones parentescas, basando en el material observado.
Tipo: Journal Contribution
Palavras-chave: Behaviour; Fish; Fish; Behaviour; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_868.
Ano: 1968
URL: http://hdl.handle.net/1834/3312

Caractérisation et variation phénotypique et biologique des deux sexes du sandre &lt; Sander lucioperca (l., 1758) &gt; (Teleosteen, Percidae) dans la retenue de barrage de Nebhana (Tunisie Centrale).
Provedor de dados: 20
Autores: Turki, O.; M' Hetli, M.; Kraiem, M.M.; Chriki, A.
Dans le but de caractériser phénotypiquement et biologiquement la population de sandre (Sander lucioperca (L, 1758)), et de détecter une éventuelle variabilité entre les sexes, une étude des variables méristiques et morphométriques ainsi que la croissance, a concerné 133 mâles et 166 femelles issus de la retenue de barrage de Nebhana. Le choix des variables méristiques et morphométriques a été décelé à partir de travaux bibliographiques montrant un taux important de variabilité chez les poissons marins et d'eau douce. Ainsi 9 caractères méristiques et 23 variables morphométriques ont été retenus. Les résultats ont montré une invariance des caractères méristiques entre les mâles et les femelles. Quant aux rapports morphométriques, les mâles diffèrent des...
Tipo: Journal Contribution
Palavras-chave: Fish; Fish; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2009
URL: http://hdl.handle.net/1834/3788

Guía para los tiburones de aguas  cubanas
Provedor de dados: 20
Autores: Guitart Manday, Darío.
Importante guía para identificar distintas especies de tiburones de las aguas cubanas, Golfo de México, Mar Caribe y Océano Atlántico cercano a Cuba. Posee ilustraciones.
Tipo: Journal Contribution
Palavras-chave: Taxonomy; Fish; Taxonomy; Cartilaginous fishes.
Ano: 1968
URL: http://hdl.handle.net/1834/5009

La Pêche artisanale maritme au Sénégal
Provedor de dados: 20
Evolution des captures - Les ressources halieutiques - Moyens de production de la pêche artisanale - Commerce du poisson - Politique de développement et d'aménagement des pêches - Contraintes - Perspectives
Tipo: Book
Palavras-chave: Fish; Fishery biologists; Marine fisheries; Marine fish; Artisanal fishing; Fish; Marine fisheries; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_4611.
Ano: 1995
URL: http://hdl.handle.net/1834/1744

A River Story: Waters in the Godineau Swamp
Provedor de dados: 20
Tipo: Other
Palavras-chave: Swamps; Fish; Aquatic environment; Rivers; Wetlands; Swamps; Fish; Rivers; Wetlands; Aquatic environment; Http://aims.fao.org/aos/agrovoc/c_7544; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_8371; Http://aims.fao.org/aos/agrovoc/c_554.
Ano: 2003
URL: http://hdl.handle.net/1834/2916

Pontinus clemensi (Pisces: Scorpaenidae) at Malpelo Island, Colombia: new specimen and Geographic range extension
Provedor de dados: 20
Autores: Mora, C.; Jiménez, J.M.; Zapata, F.A.
Pontinus clemensi es una especie descrita con un reducido número de especímenes. En Junio de 1999, un espécimen adicional de P. clemensi fue colectado en la isla Malpelo, Colombia (3º 59' N, 81º 35' W). Este ejemplar permitió ampliar la descripción original de la especie y su ámbito geográfico en el Pacifico Oriental.
Tipo: Journal Contribution
Palavras-chave: Fish; Geographical distribution; Fish; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 2000
URL: http://hdl.handle.net/1834/3315

Peces de las Islas del Rosario y de San Bernardo (Colombia) III. Comparación con otras regiones del Atlántico Oeste Tropical
Provedor de dados: 20
Autores: Garzón-Ferreira, J.; Acero-P., A.
Se presenta una comparación de fa ictiofauna de arrecifes coralinos de las regiones de Cartagena (Islas del Rosario e Islas de San Bernardo) y de Santa Marta (incluyendo el Parque Nacional Tayrona), Caribe colombiano, con base en los resultados de más de cinco años de muestreo en esta última y de 76 horas de observaciones y colectas subacuáticas en las islas cercanas a Cartagena. Se ha encontrado que numerosas especies que existen en la región de Cartagena no habitan o tienen poblaciones muy reducidas en los arrecifes adyacentes a Santa Marta, mientras que sí habitan en las Islas Bahamas, separadas geográficamente de Cartagena por una distancia casi 8 veces mayor. Factores como la relativa inestabilidad ambiental, la influencia de corrientes de aguas...
Tipo: Journal Contribution
Palavras-chave: Fauna; Fish; Sampling; Fauna; Fish; Sampling; Http://aims.fao.org/aos/agrovoc/c_2821; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_6774.
Ano: 1986
URL: http://hdl.handle.net/1834/4047

Species Diversity and Relative Abundance of Fisheries Resources Found in Beach Seine along the Central Coast of Ghana
Provedor de dados: 20
Autores: Aggrey-Fynn, J.; Sackey-Mensah, R.
The diversity and relative species abundance of fisheries resources were studied from Winneba to Cape Coast on the central coast of Ghana during December 2007 to May 2009. Samples of organisms were collected at random from beach seine landings during the study period. The fishes were counted and identified to the family and species levels. Ecological indices such as Shannon-Wiener diversity index, equitability and Sørenson’s similarity index were used to analyse the data. Specimens from Winneba, Saltpond and Cape Coast comprise 56 species belonging to 30 families. Carangidae, Haemulidae, Clupeidae and Sciaenidae were some of the families, where key species occurred during the study. The relative abundance of key organisms in the beach seine landings...
Tipo: Report
Palavras-chave: Fish; Biodiversity; Relative abundance; Coastal fisheries; Carangidae; Haemulidae; Sciaenidae; Marine resources.
Ano: 2012
URL: http://hdl.handle.net/1834/5323

lagoonal sand smelts ( &lt;Atherina lagunaea&gt;, teleostei, atherinidae) inhabit marine shallow waters of the coasts of djerba island (Tunisia)
Provedor de dados: 20
Autores: Bouriga, N.; Selmi, S.; Aurelle, D.; Barthelemy, R.; Quignard, J-P.; Trabelsi, M.
Atherina boyeri de la Méditerranée est un complexe hautement polymorphe ayant un génotype capable d’une réponse phénotypique flexible. Elle peut rapidement adapter les traits  de sa morphologie à des environnements allant des eaux douces aux eaux saumâtres côtières polyhalines et aux eaux océaniques. Les travaux de recherche réalisés, en Méditerranée, sur ce complexe ont permis de le scinder en trois espèces. Deux espèces marines (Atherina boyeri et Atherina punctata) et une espèce qui peuplent les lagunes et les côtes des îles Kerkennah (Atherina lagunae) (Trabelsi et al. 2009). Dans le présent travail l’analyse d’une portion du gène cytochrome b a  été utilisée  pour étudier les variations génétiques d’une population d’athérine, prélevée des côtes de...
Tipo: Journal Contribution
Palavras-chave: Fish; Lagoon fisheries; Fish; Lagoon fisheries; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_4157.
Ano: 2009
URL: http://hdl.handle.net/1834/3781

Los habitats costeros de los juveniles de peces en la Región de Punta Gloria a la Isla de Salamanca, Caribe colombiano
Provedor de dados: 20
Autores: González-Afanador, E.
Se presentan y discuten algunos resultados del estudio ecológico de los habitáis costeros ocupados por juveniles de peces, realizado entre junio de 1979 y mayo de 1980, en el trayecto comprendido entre Punta Gloria al SE de Santa Marta y la Isla de Salamanca en la costa Caribe colombiana. Los cuatro habitáis estudiados fueron riberas marinas someras, lagunas costeras (Punta Gloría y Costa Verde) y boca del estuario (Ciénaga Grande). Los factores abióticos considerados fueron la temperatura y salinidad del agua superficial; se analiza su relación con el régimen climático e hidrológico regional del área. Se describen cambios en tamaño y forma de los habitáis estudiados.  Por otra parte se presenta una lista sistemática de los peces colectados, una estimación...
Tipo: Journal Contribution
Palavras-chave: Fish; Juveniles; Coastal lagoons; Abiotic factors; Fish; Juveniles; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_25393; Http://aims.fao.org/aos/agrovoc/c_1697.
Ano: 1984
URL: http://hdl.handle.net/1834/4038

Capacité des moules dans la réduction des teneurs en nutriments et la charge bactérienne dans les effluents piscicoles
Provedor de dados: 20
Autores: Romdhane, M.S.; Chebil Ajjabi, L.; El Abed, O.
L’effluent des élevages de poissons renferme des concentrations plus élevées en nutriments dissous et en particules en suspension que celles présentes dans l’eau entrante. Cet état entraine par conséquent, des problèmes d’ordre environnementaux affectant les eaux côtières dues à l’eutrophisation et l’augmentation de la turbidité. Afin d’améliorer la qualité de l’effluent avant son déversement dans le milieu naturel, l’utilisation des bivalves comme filtre biologique est une alternative adéquate. Cette étude analyse la capacité de la moule Mytilus galloprovincialis de réduire les teneurs en sels nutritifs et la charge bactérienne dans les effluents de loups Dicentrarchus labrax en élevage. L’effluent issu des bassins de grossissement est pompé directement...
Tipo: Journal Contribution
Palavras-chave: Aquaculture effluents; Bacteria; Biofilters; Chlorophylls; Culture effects; Density; Effluents; Filtration; Fish; Mussel fisheries; Nitrogen; Nutrients (mineral); Phosphorus; Suspended particulate matter; Wastewater treatment; Water quality; Mytilus galloprovincialis; Wastewater treatment; Mussels; Nutrients; Http://aims.fao.org/aos/agrovoc/c_31155; Http://aims.fao.org/aos/agrovoc/c_25312; Http://aims.fao.org/aos/agrovoc/c_5010; Http://aims.fao.org/aos/agrovoc/c_5274.
Ano: 2008
URL: http://hdl.handle.net/1834/4154

Preliminary investigations on the ichthyodiversity of Kilifi Creek, Kenya
Provedor de dados: 20
Autores: Oyugi, D.
In order to determine fish spatial variation, the Kilifi Creek was divided into three sampling zones: entrance, middle zone, and Creek end. Sampling was by both gill and cast nets. Hill’s diversity indices were used as a measure of spatial diversity variance. A total of 95 species from 45 families were recorded. Gerres filamentosus, Pomadasys multimaculatum, Leiognathus equula, and Terapon theraps occurred commonly. Highest species richness (No = 68) and diversity (N1 = 31.09) was recorded at the entrance and Creek middle respectively. Most of the species overlap with the highest overlap index (L = 2.52) recorded between Cynoglossus gilchristi and Scombroides lysan. The creek’s ichthyodiversity show considerable variability, with the high richness at the...
Tipo: Journal Contribution
Palavras-chave: Ichthyodiveristy; SCOMBROIDES LYSAN; CYNOGLOSSUS GILCHRISTI; TERAPON THERAPS; GERRES FILAMENTOSUS; POMADASYS MULTIMACULATUN; LEIOGNATHUS EQUULA; Sampling; Fish; Water; Sampling; Http://aims.fao.org/aos/agrovoc/c_6774.
Ano: 2005
URL: http://hdl.handle.net/1834/1127

Hallazgo del pargo Cunaro Rhomboplites aurorubens (Cuvier) (Pisces: Lutjanidae) en un arrecife coralino somero
Provedor de dados: 20
Autores: Acero-P., A.; Garzón-Ferreira, J.
Varios individuos del pargo cunaro Rhomboplites aurorubens fueron observados formando cardúmenes heteroespecíficos entre 10 y 20 m de profundidad en un arrecife coralino en Isla Tesoro (Archipiélago del Rosario, Caribe colombiano). Uno de esos ejemplares fue colectado y examinados sus caracteres meristicos y morformétricos, así como su contenido estomacal y madurez sexual. Se compara con la literatura existente sobre la biología y ecología de este pargo para tratar de explicar su presencia en esas condiciones.
Tipo: Journal Contribution
Palavras-chave: Fish; Stomach content; Fish; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 1984
URL: http://hdl.handle.net/1834/4036

Effect of ecological and biological factors on the uptake and concentration of trace elements by aquatic organisms at Edku lake
Provedor de dados: 20
Autores: Abbas, M.M.; Shakweer, L.
The effect of temperature, pH and trace elements concentration in the ambient water on the uptake and accumulation of Cu, Zn, Ni and Pb in various organs of fish and parts of aquatic plants of Edku Lake were studied. It was found that higher water temperature and lower pH during summer increased the rates of trace metals uptake by the most common fish species Oreochromis niloticus. The concentrations of Cu, Zn, and Ni in the various organs of fish were affected by the concentrations of these elements in the water. Cu, Zn, Ni and Pb attained higher concentrations in the roots of Eichormia crassipes if compared with their concentrations in the other parts of this aquatic plant. Sex of fish can be considered as an important factor affecting the accumulation...
Tipo: Journal Contribution
Palavras-chave: Trace elements; Fish; Aquatic plants; Pollution Accumulation Environments Lake fisheries Lakes Lake fisheries Lakes Environment http://aims.fao.org/aos/agrovoc/c_4159 http://aims.fao.org/aos/agrovoc/c_4160 http://aims.fao.org/aos/agrovoc/c_2593.
Ano: 2005
URL: http://hdl.handle.net/1834/1249

Hábitos alimentarios de los peces del género Haemulon (Pisces: Haemulidae) de los arrecifes de la región de Santa Marta, Colombia
Provedor de dados: 20
Autores: Estrada-R., M.
£1 hábito alimentario de las especies del género Haemulon varía a lo largo de su ciclo de vida, de tal manera que los juveniles menores de 80 mm de longitud total en H, aurolineatum, H. chrysargyreum, H. raelanurum y H. srriatum son planctófagos y se aumentan durante las horas de luz (excepto H- chrysargyreum que se alimenta de noche). H. flavolineatum en estado juvenil se alimenta de organismos tanto planctónicos como bemónicos. En la fase adultade H. aurolineatum, H. carbonaríum. H. flavolineatum, H. melanurum, H. macrostomum, H. parrai, H. plumierí y H. sdurus la alimentación cambia a una dieta constituida por organismos bentónicos, siendo más frecuentes los crustáceos decápodos, moluscos y poliquetos. El cambio de hábito alimentario de planctófago a...
Tipo: Journal Contribution
Palavras-chave: Feeding behaviour; Life cycle; Fish; Reefs; Feeding behaviour; Fish; Life cycle; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_4317.
Ano: 1986
URL: http://hdl.handle.net/1834/4046

Poliploidía y ginogénesis en abulón rojo (Haliotis rufescens), certificación genética de presuntos híbridos de abulón rojo y azul (Haliotis fulgens), y cariotipos de las especies parentales
Provedor de dados: 20
Autores: Hernández, N.
La producción de triploides mediante la manipulación de ploidías por métodos químicos ha demostrado ser un éxito en la producción comercial de varias especies, siendo el caso más conocido el del ostión japonés Crassostrea gigas. La ventaja de los triploides de moluscos sobre los organismos diploides se debe a su alta tasa de crecimiento, resultado de ser total o parcialmente estériles. Los triploides son incapaces de realizar la meiosis I debido a que sus cromosomas (impares) no pueden completar la sinapsis durante la profase, fallan en la producción de gametos y la energía que sería utilizada para la gametogénesis se invierte alternativamente en crecimiento somático. Actualmente la investigación en este campo se enfoca hacia mejorar el éxito en la...
Tipo: Theses and Dissertations
Palavras-chave: 1016; Genetics; Fish; Electrophoresis; Genetics; Fish; Electrophoresis; Http://aims.fao.org/aos/agrovoc/c_3222; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_2523.
Ano: 2004
URL: http://hdl.handle.net/1834/3684

Heavy metals concentrations in certain tissues of five commercially important fishes from El-Mex Bay, Alexandria, Egypt
Provedor de dados: 20
Autores: Khaled, A.
The distribution of eight heavy metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb nd Zn) were detected in muscles, gills, livers and bones of five fish species namely, Sargus sargus, Siganus rivulatus, Mugil cephalus, Caranx crysos and Scomberomorus commerson collected from El-Mex Bay, Alexandria during January 2003. Iron and zinc were most abundant in all fish tissues under investigation. Iron, zinc and copper recorded highest concentration levels in liver while cadmium, cromium and lead recorded their highest values in gills and bones. Provisional Tolerable Weekly Intake (PTWI) demonstrated that the concentration of metals (Cd, Cu, and Pb) in muscles of the five fishes are lower than the PTWI values, and accordingly there is no risk yet for human consumption of flesh...
Tipo: Journal Contribution
Palavras-chave: Heavy metals; Pollution; Fish; El-Mex Bay; Alexandria; Egypt Accumulation Fish consumption.
Ano: 2004
URL: http://hdl.handle.net/1834/1086

The Chaenopsine blennies of the Southwestern Caribbean (Pisces: Clinidae: Chaenopsinae) I. Systematic analysis of zoogeography
Provedor de dados: 20
Autores: Acero-P., A.
The chaenopsine blennies are an homogeneous group which may be considered a subfamily of the Clinidae, since the existing evidence is not enough to give them familial status. The subfamily includes eight genera: Mccoskerichthys, Coralliozetus, Acanthemblemaria, Ekemblemaria, Emblemaria, Hemiemblemaria, Lucayablennius, and Chaenopsis. The nominal genera Protemblemaria and Emblemariopsis are herewith considered synonyms of Coralliozetus, since they share two derived characters: small size and sexual dimorphism in the color of the head, and are rather similar in several other characteristics. The división of the West Indian Zoogeographical Province made by Briggs (1974) is unnatural, since the fish fauna of Belize, Florida and the Bahamas is very similar. I...
Tipo: Journal Contribution
Palavras-chave: Fish; Ichthyology; Endemic species; Fish; Endemic species; Ichthyology; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_26882; Http://aims.fao.org/aos/agrovoc/c_3788.
Ano: 1984
URL: http://hdl.handle.net/1834/4031

Contribution sur la gestion et la valorisation des ressources au Sénégal
Provedor de dados: 20
Au Sénégal le secteur de la pêche maritime jour un rôle socioéconomique de premier plan comparé aux autres activités du secteur primaire comme l'agriculture et l'élevage la pêche a enregistré une croissance qui a eu un impact important dans l'amélioration des revenus des populations côtères des investissements et des exportations de produits halieutiques.
Tipo: Report
Palavras-chave: Histamines; Ground water; Fertility; Fauna; Fish; Ground water; Fauna; Fish; Fertility; Http://aims.fao.org/aos/agrovoc/c_11367; Http://aims.fao.org/aos/agrovoc/c_2821; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_2862.
Ano: 2003
URL: http://hdl.handle.net/1834/1729

Distribution and community structure of butterflyfishes (Pisces: Chaetodontidae) in southern Mozambique
Provedor de dados: 20
Autores: Pereira, M.A.M.; Videira, E.J.S.
Even though Mozambique has the greatest reported diversity of butterflyfishes (24 species) of the continental states of the Western Indian Ocean region, aspects of the ecology and distribution of this group in Mozambique are poorly documented. The distribution, diversity and community structure of butterflyfishes were studied on nine reefs in southern Mozambique using the point count method. Nineteen species from four genera were identified. Three with generalist feeding habits (i.e. Chaetodon auriga, C. guttatissimus and C. interruptus) were the most abundant with a wide distribution range. The butterflyfish communities of intertidal reefs at Inhaca Island differed from those of the offshore, subtidal reefs, as shown by uni- and multivariate analysis of...
Tipo: Journal Contribution
Palavras-chave: MOZAMBIQUE; CHAETODON AURIGA; CHAETODON GUTTATISSIMUS; CHAETODONTIDAE; Community diversity; Distribution; Fish; Ecology; Distribution; Http://aims.fao.org/aos/agrovoc/c_35773.
Ano: 2005
URL: http://hdl.handle.net/1834/1132

Analyses microbiologiques et chimiques des produits de la pêche et de l'eau
Provedor de dados: 20
Autores: Diouf, Sidiya.
Ce rapport porte principalement sur la microbiologie, la chaîne biochimie des aliments et des eaux au terme d'un stage d'un mois effectué au Laboratoire de Sécurité Alimentaire et d'Hygiène de l'Environnement (LSAHE) de l'Institut Pasteur de Dakar. Nous avons donné quelques notions générales sur: (1) les différents germes recherchés dans: - le poisson (frais ou transformé); germes capables d'altérer la qualité marchande du poisson (la flore totale à 30 ° C); - germes potentiellement pathogènes (ASR, Salmonellea, Staphylococcus); - germes témoins de contamination fécale (coliformes fécaux);  - germes indicateurs technologiques (coliformes totaux entérobactéries). (2) l'eau et la glcae: - germes capables d'altérer la qualité marchande de l'eau (la flore...
Tipo: Report
Palavras-chave: Microbiological analysis; Fish; Water analysis; Ice; Hygiene; Quality control; Fish; Ice; Microbiological analysis; Water analysis; Hygiene; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_3782; Http://aims.fao.org/aos/agrovoc/c_25302; Http://aims.fao.org/aos/agrovoc/c_16064; Http://aims.fao.org/aos/agrovoc/c_3739.
Ano: 2001
URL: http://hdl.handle.net/1834/4074

Rapport statistique des exportations de conserves de thon année 2003
Provedor de dados: 20
En 2003 la production et la commercialisation des produits de thon sont déterminés par le nombre d'établissements et la diversité des produits exportés. Les établissements de production correspondes aux conserveries de sardinelles et de thon. La quantité annuelle de thon  et de sardinelleen 2003 s'éléve à 9747 458 kgs soit 9747, 5 tonnes.
Tipo: Report
Palavras-chave: Fish; Fee fishing; Seafood; Fish; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2003
URL: http://hdl.handle.net/1834/1846

Assessment of heavy metals and nonessential content of some edible and soft tissues
Provedor de dados: 20
Autores: Ahdy, H.H.H.; Abdallah, A.M.; Tayel, F.T.
The level concentrations of heavy metals (essential and nonessential) were measured in different marine biota including cephalopoda, bivalve, crustacean and fish. The results reveal that these organisms show more or less the same order of distribution for each of the metals studied. The average concentrations of heavy metals exhibited the following decreasing order: cephalopoda &gt; bivalve &gt; crustacean &gt; fish. The levels of metals in all studied samples are still comparable to those in their corresponding in the Mediterranean Sea. K (98-181μg/g) and Ca (547-1472 μg/g) were present at the highest concentrations in all investigated samples. Octopus and Sepia do not follow the general pattern. The highest value of Metal Pollution Index (MPI) in...
Tipo: Journal Contribution
Palavras-chave: Field Study; Heavy metals; Marine crustaceans; Fish; Heavy metals; Fish; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2007
URL: http://hdl.handle.net/1834/1898

Peces de las Islas del Rosario y de San Bernardo (Colombia) II. Tres nuevos registros para el Caribe Sur y 16 mas para la Costa Norte continental colombiana
Provedor de dados: 20
Autores: Acero-P., A.; Garzón-Ferreira, J.
Se describen 19 especies de peces colectadas en los archipiélagos coralinos de las islas del Rosario y de San Bernardo, las cuales son nuevos registros para el Caribe continental colombiano. Tres de esas especies (Ichthyapus ophioneus, Calamopteryx goslinei y Apogon leptocaulus) no habían sido colectadas antes en el Caribe sur, por lo que estos récords son nuevos para este sector del Mar de las Antillas. Se incluye información sobre aspectos biológicos y ecológicos de las especies.
Tipo: Journal Contribution
Palavras-chave: Fish; New records; Biology; Ecology; Fish; Ecology; Biology; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_925.
Ano: 1986
URL: http://hdl.handle.net/1834/4044

Séminaire de formation en groupe sur les techniques améliorées de traitement de conservation et de transformation du poisson et des produits halieutiques
Provedor de dados: 20
Autores: DIOP, M. Y.
Tipo: Journal Contribution
Palavras-chave: Fish; Hygiene; Fermentation; Trade; Packing fishery products; Conservation of salt; Fishery economics; Fish; Hygiene; Fermentation; Trade; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_3739; Http://aims.fao.org/aos/agrovoc/c_2855; Http://aims.fao.org/aos/agrovoc/c_7848.
Ano: 2007
URL: http://hdl.handle.net/1834/1716

Peces marinos
Provedor de dados: 20
Autores: Diez de Oñate, G.; Rodríguez Atá, R.
Clasificación, evolución, morfología, alimentación entre otros aspectos son abordados de forma didáctica  y profusamente ilustrado.
Tipo: Other
Palavras-chave: 1341; Education; Fish; Education; Fish; Http://aims.fao.org/aos/agrovoc/c_2488; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2001
URL: http://hdl.handle.net/1834/4004

Séminaire de formation en groupe sur les techniques améliorées de traitement de conservation et de transformation du poisson et des produits halieutiques
Provedor de dados: 20
Autores: DIOP, M. Y.
Tipo: Journal Contribution
Palavras-chave: Fish; Hygiene; Fermentation; Trade; Packing fishery products; Conservation of salt; Fishery economics; Fish; Hygiene; Fermentation; Trade; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_3739; Http://aims.fao.org/aos/agrovoc/c_2855; Http://aims.fao.org/aos/agrovoc/c_7848.
Ano: 2007
URL: http://hdl.handle.net/1834/1716

Efecto de dos alimentos en el desempeño productivo de Clarias gariepinus en tanques de cemento
Provedor de dados: 20
Autores: Llanes, J.; Toledo, J.; Lazo de la Vega, J. M.
El objetivo de este trabajo fue evaluar el efecto de dos alimentos en el desempeño productivo del bagre africano cultivado en tanque de cemento de 1 m3 durante 50 días. Se utilizaron 600 alevines de Clarias gariepinus (10,0 g de peso medio inicial) distribuidos según diseño completamente aleatorizado en dos tratamientos triplicados (100 alevines/tanque): la dieta comercial de tilapia como control (harina de soya como única fuente de proteína) y otra experimental semihúmeda con 40 % de ensilaje de residuos pesqueros y 60 % del control. Se encontraron diferencias estadísticas en el crecimiento, la conversión del alimento, eficiencia proteica y supervivencia a favor de la dieta experimental. Estos resultados demostraron que fue necesaria la inclusión de...
Tipo: Journal Contribution
Palavras-chave: Fish; Diets; Commercial fisheries.
Ano: 2011
URL: http://hdl.handle.net/1834/4623

The implications of wood exploitation for fish smoking on mangrove ecosystem conservation in the South West Province, Cameroon
Provedor de dados: 20
Autores: Mario, G.M.; Njisuh, Z. F.
In this study we investigated how the use of mangrove wood for fish smoking by local people in some localities of the South West (SW) Province of Cameroon may be in conflict with the conservation and sustainability of mangrove ecosystems. With the use of socio-economic surveys, from February to July 2006, we established that the amount of the annual fuel-wood harvest for five study sites was about 102,650 m3 (i.e., an amount equivalent to clearing about 205.3 ha of mangrove forests annually). It is estimated that approximately 62% of this total is used to smoke most of the fish (i.e., about 90.7% of the fish landings) across the five study sites. The quantities of wood seemed to vary proportionately with fish landings across sites, hence indicating a...
Tipo: Journal Contribution
Palavras-chave: Wood; Curing; Fish; Mangroves; Ecosystem management.
Ano: 2008
URL: http://hdl.handle.net/1834/5477

Variación temporal de la comunidad de peces en un canal de  comunicación al mar en Cayo Coco, Cuba
Provedor de dados: 20
Autores: Salvat-Torres, H. M.; González-Sansón, G.; Salvat Quesada, M.; Pina-Amargós, F.
Este trabajo analiza como varía en el tiempo la abundancia y distribución de los peces del canal de comunicación al mar de  Laguna Larga, Cayo Coco, Cuba. El canal se dividió en dos zonas separadas cada una por 30 m. Se realizaron censos visuales  mediante buceo libre, consignándose la abundancia, talla y anotaciones sobre la conducta de peces en tres años. Se  cuantificó el número de individuos y la talla estimada de peces por especies. Para caracterizar el hábitat se midió el área de  sombra y refugio del canal. Se calculó la densidad, talla media, biomasa y la frecuencia relativa de la ictiofauna. Se  determinaron 52 especies pertenecientes a 24 familias de  peces. Las comunidades de peces del canal estudiado varían  espacial y temporalmente. La...
Tipo: Journal Contribution
Palavras-chave: Mangroves; Movement; Fish; Temporal variations.
Ano: 2013
URL: http://hdl.handle.net/1834/4930

Présence de &lt;Sphyraena viridensis&gt; (sphyraenidae) sur les cotes nord de la Tunisie
Provedor de dados: 20
Autores: Draief, M.I.; Chemmam-Abdelkader, B.; Ezzedine-Najai, S.
Au mois d’avril 2007, neuf (9) spécimens de Sphyraena viridensis dont 7 femelles et 2 mâles ont été identifiés pour la première fois dans un lot de Sphyraena sphyraena sur l’étale de vente du marché de Bizerte (Nord de Tunisie). Leur poids variait entre 206g et 936g correspondant à des tailles comprises entre 396mm et 623mm. Selon les informations reçues ces individus ont été capturés au trémail à Ghar el Melh. En mai de la même année, 5 individus femelles de S. viridensis ont été également trouvés et échantillonnés dans la le même port; ils mesuraient entre  421mm et 456mm correspondant à des poids compris entre 258g et 308g. D’après leurs tailles, ils sont adultes. Disséqués, tous les individus étaient matures. L’identification de S. viridensis du Nord...
Tipo: Journal Contribution
Palavras-chave: Animal morphology; Geographical distribution; Fish; Fish; Geographical distribution; Animal morphology; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_421.
Ano: 2008
URL: http://hdl.handle.net/1834/3778

Egyptian Marine Gastrotricha
Provedor de dados: 20
Autores: Leasi, F.; Todaro, M.A.
Order MACRODASYIDA Remane, 1925 [Rao and Clausen, 1970] Family DACTYLOPODOLIDAE Strand, 1929 Genus Dactylopodola Strand, 1929 Dactylopodola baltica Remane, 1926 Mediterranean Sea
Tipo: Working Paper
Palavras-chave: Fish.
Ano: 2004
URL: http://hdl.handle.net/1834/388

Biology and toxicity of the pufferfish Lagocephalus sceleratus (GMELIN, 1789) from  the Gulf of Suez
Provedor de dados: 20
Autores: El-Ganainy, A. A.; Sabrah, M. M.; Zaky, M. A.
Some biological aspects of the pufferfish Lagocephalus sceleratus were studied and correlated with the toxicity of the fish. A sample of 176 fish with total lengths ranging from 18.5 to 78.5 cm were collected from commercial catches at the Attaka fishing harbor between October 2002 and June 2003. Length weight regression parameters for males, females and all individuals were estimated. Modal progression analysis output indicates ten distinct age groups. The parameters of the von Bertalanffy's growth model were L∞ = 81.1 cm and K = 0.26 per year. The overall sex ratio of males to females was 1: 1.3. The spawning takes place during summer and the size at which 50% of fishes are mature is 42.1 cm for males and 43.3 cm for females. Analysis of the diet...
Tipo: Journal Contribution
Palavras-chave: Environmental Studies; Reproduction; Toxicity; Growth; Fish; Toxicity; Growth; Reproduction; Http://aims.fao.org/aos/agrovoc/c_7826; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 2006
URL: http://hdl.handle.net/1834/1452

Puerto artesanal Puerto López
Provedor de dados: 20
Autores: Ayala Velasquez, Daniela; Vinces Gutiérrez, Pedro.
El proyecto está enfocado a mejorar la productividad y mejorar el nivel de pesca artesanal dentro del Ecuador mediante una infraestructura adecuada que esté a nivel de la población, brindando todos los servicios necesarios que el pescador artesanal requiere, tanto para su embarcación, como para su carga en el  desembarco y almacenamiento. En la actualidad, Ecuador brinda la oportunidad para crear proyectos de este tipo ya que cuenta con más de 10 comunidades pesqueras artesanales, que no tienen la facilidad de un puerto  artesanal que pueda ofrecer varios servicios. El Puerto Artesanal tiene como objetivo, tratar de imponer una cultura de organización y eficiencia; por ende, entregar valor agregado a los productos que salen del mar, haciendo que el sector...
Tipo: Theses and Dissertations
Palavras-chave: Ports; Fish.
Ano: 2009
URL: http://hdl.handle.net/1834/5469

Molecular phylogeny and phylogeography of the Cuban cave-fishes of the genus Lucifuga: Evidence for cryptic allopatric diversity
Provedor de dados: 20
Autores: García-Machado, E.; Hernández, D.; García-Debrás, A.; Chevalier-Monteagudo, P.; Metcalfe, C.; Bernatchez, L.; Casane, D.
Underground environments are increasingly recognized as reservoirs of faunal diversity. Extreme environmental conditions and limited dispersal ability of underground organisms have been acknowledged as important factors promoting divergence between species and conspecific populations. However, in many instances, there is no correlation between genetic divergence and morphological differentiation. Lucifuga Poey is a stygobiotic fish genus that lives in Cuban and Bahamian caves. In Cuba, it offers a unique opportunity to study the influence of habitat fragmentation on the genetic divergence of stygobiotic species and populations. The genus includes four species and one morphological variant that have contrasting geographical distributions. In this study, we...
Tipo: Journal Contribution
Palavras-chave: Fish; Phylogeny.
Ano: 2011
URL: http://hdl.handle.net/1834/4138

Etude de la reproduction chez &lt;DIPLODUS SARGUS CADENATI&gt; (sparidae) de la cote de Nouadhibou (Mauritanie)
Provedor de dados: 20
Autores: Dia, M.; Wague, A.; Ghorbel, M.
L’étude de la reproduction de Diplodus sargus cadenati, de la côte de Nouadhibou a porté sur 513 individus de longueurs à la fourche comprises entre 13,2 cm et 32,2 cm. Cette étude a montré que la période de ponte de cette espèce s’étend de janvier à avril, période où la température de l’eau est en moyenne de 18,4°c. La taille (L50) à la laquelle 50% des individus sont matures est de 21,47 ± 0,45 cm de longueur à la fourche (Lf) pour les mâles et de 20,79 ± 0,55 cm pour les femelles. L’étude de la sex-ratio n’a pas montré la dominance de l’un ou de l’autre sexe.
Tipo: Journal Contribution
Palavras-chave: Fish; Fish; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2009
URL: http://hdl.handle.net/1834/3700

Edad, crecimiento y mortalidad de Lutjanus purpureus Poey, 1867 (Pisces: Lutjanidae) de la region de Guyanas
Provedor de dados: 20
Autores: González, L.W.; Eslava, N.; Silva, C,.
Se determinó la edad y se estimaron los parámetros de crecimiento y mortalidad del pargo colorado, Lutjanus purpureus Poey, 1867 con base en la lectura de 152 urohiales de 1561 individuos capturados durante 1988 de la región de Guayanas, comprendida entre los 06º - 10º LN y 54º - 61º LW, mediante la pesca exploratoria del B/I "Dr. Fridtjof Nansen". El recuento de zonas anuales en urohiales permitió establecer siete grupos de edad. La curva teórica de crecimiento en longitud se ajustó de acuerdo con los valores de los parámetros de crecimiento de von Bertalanffy : L∞ = 91.99 cm; K = 0.245 por año; to = -0.499 año. La mortalidad natural obtenida a través de la ecuación de Taylor fue igual a 0.255 por año y la mortalidad total calculada mediante el método de...
Tipo: Journal Contribution
Palavras-chave: Age; Growth; Mortality; Fish; Growth; Fish; Age; Mortality; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_186; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 1998
URL: http://hdl.handle.net/1834/3269

Observations on the diet of Balistes vetula (Pisces: Balistidae) in the Gulf of Salamanca, Colombian Caribbean
Provedor de dados: 20
Autores: Von-Schiller, D.; García, C.B.
Se describe el contenido de lo tractos digestivos de ejemplares de Balistes vetula capturados durante faenas de pesca científica. Los crustáceos representan la presa preferencial de esta especie en el Golfo de Salamanca y dentro de estos destaca el orden Brachyura. Estos resultados se contrastan con la dieta de la especie en otras latitudes.
Tipo: Journal Contribution
Palavras-chave: Diets; Benthos; Digestion; Fish; Benthos; Fish; Digestion; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_2271.
Ano: 2000
URL: http://hdl.handle.net/1834/3321

Ampliación del ámbito geográfico de Notarius grandicassis (Siluriformes: Ariidae) en el Caribe colombiano.
Provedor de dados: 20
Autores: Sánchez-Rodríguez, D.C.; Acero-P., A.
The ariid Notarius grandicassis (Valenciennes, 1840), commonly known as Thomas sea catfish, occurs at northeastern South America, ranging between Colombia and Brasil. It was reported originally from the mouth of the Amazon to the Golfo de Venezuela. In 2002, it was reported from the Colombian Guajira peninsula. Herein, we report the species from the mouth of the Magdalena River (Bocas de Ceniza), where it is rather frequently obtained by fishermen.
Tipo: Journal Contribution
Palavras-chave: Fish; Fish; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2008
URL: http://hdl.handle.net/1834/3512

Inducción del desove, desarrollo embrionario y larval de Chaetodipterus faber (Broussonet) (Pisces, Ephippidae) en la Isla Margarita, Venezuela
Provedor de dados: 20
Autores: Gómez-Gaspar, A.
La paguara Chaetodipterus faber (Broussonet, 1782) tiene cierta importancia económica en países del Caribe sur. En la Isla Margarita (Venezuela) se colectaron juveniles que fueron mantenidos en jaulas flotantes donde lograron el desarrollo de sus gónadas.  Se seleccionaron adultos y en el laboratorio se indujo la puesta mediante inyecciones de hormonas gonadotropas. Los huevos son flotantes y de forma esférica, su diámetro varía entre 0.9 y 1.1 mm y la gota de aceite tiene 0.25 a 0.35 mm de diámetro. A las 26 horas de la fertilización eclosionaron los huevos incubados a temperatura entre 24.5-28.4°C. Las larvas recién nacidas miden de 1.9a 2.1 mm; el saco vitelino tiene una longitud entre l.1 y l.3 mm y  se reabsorbe a los dos o tres días. La fase larval...
Tipo: Journal Contribution
Palavras-chave: Fish; Fish eggs; Gonads; Larval development; Embryonic development; Fish; Embryonic development; Gonads; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_2545; Http://aims.fao.org/aos/agrovoc/c_34291.
Ano: 1984
URL: http://hdl.handle.net/1834/4034

Primer registro del pez diablo Scorpaena afuerae (Pisces: Scorpaenidae) en el Pacífico colombiano
Provedor de dados: 20
Autores: Gómez-C., A.; Zapata-P., L.A.; Gómez-C., G.; Angulo-V., W.
The presence of S. afuerae is registered for first time in Colombian Pacific waters. Considering the period and the relative abundance, the cause to be is presumed the migratory effect by the cold phenomenon “La Niña”, declared in the end of 1998 and/or the few samples in the rocky zones offshore the continental shelf.
Tipo: Journal Contribution
Palavras-chave: Fish; Fish; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2001
URL: http://hdl.handle.net/1834/3201

Atelier de formation sur le code de la pêche à kayar
Provedor de dados: 20
Autores: Dioh, B.; Ndiaye, O.; Sané, K.; Diouf, P.S.
Dans le programme de conservation des écosystèmes marins et côtiers de I'Akique de I'Ouest du World Wide Fund for Nature (WWF), Kayar a été retenu comme site où des activités de terrain doivent être menées. Dans le but de former et de sensibiliser les acteurs chargés de I'application des lois et règlements relatifs à la pêche et ceux à qui cette réglementation s'applique, une séance de vulgarisation des lois et règlements régissant la pêche au Sénégal a été organisée le 26 juillet 2002 à Kayar. Aprés la cérémonie d'ouverture, Messieurs Ousmane NDIAYE, Chef de la division pêche artisanale à la Direction de l'océanographie et des pêches maritimes (DOPM) et Alassane Samba DIOP, Chef du secteur des pêches de Kayar, animateurs de la journée, ont fait une...
Tipo: Report
Palavras-chave: Mackerel fisheries; Marine accidents; Fish; Legislation; Law of the sea; Sea surface; Fish; Legislation; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_4253.
Ano: 2002
URL: http://hdl.handle.net/1834/1741

Au front, bulletin d'information du projet Evaluation et Gestion des Ressources halieutiques de la République du Sénégal
Provedor de dados: 20
Bulletin d'information du projet Evaluation et Gestion des Ressources Halieutiques au Sénégal
Tipo: Other
Palavras-chave: Fish culture; Fish consumption; Fish; Fish conversion factors; Fish catch statistics; Fishery management; Fishery biology; Fish; Fish culture; Fishery management; Fishery biology.
Ano: 2004
URL: http://hdl.handle.net/1834/1483

Biodiversité et stratégies de pêche, exemple des pêcheries du Sénégal
Provedor de dados: 20
Autores: Tidiane, Bousso.
Les implications de la biodiversité sur les pratiques de pêche dans les milieux continentaux en général etestuariens en particulier, sont relativement peu étudiées au Sénégal. les connaissances accumulées sur la bio-écologie des espèces et les modes d’exploitation utilisés par les pêcheurs artisans permettent cependant d’en tirer les grands traits.  Les estuaires du fleuve Sénégal, du Sine Saloum Et de la Casamance ont des systèmes d’alimentation en eau différents. Les variations du régime pluviométrique et l’évolution de la pluviométrie ces trois dernières décennies (succession d’an.nées humides et d’années particulièrement sèches) ont influencé fortement les caractéristiques physico-chimiques de ces cours d’eau. Les espèces de poissons ont développé des...
Tipo: Book
Palavras-chave: Fisheries hydrography; Biodiversity; Estuaries; Inland fisheries; Lake fisheries; Fishing gear; Backwaters; Fish.
Ano: 2000
URL: http://hdl.handle.net/1834/4583

Nuevos registros de peces para la Isla de San Andrés (Mar Caribe de Colombia)
Provedor de dados: 20
Autores: Victoria-D., P.; Gómez-N., D.P.
Se incluyen 34 especies de peces, las cuales constituyen nuevos registros para la isla de San Andrés y 9 de éstas lo son para el oeste del Caribe. Se comenta la abundancia de las capturas obtenidas por los integrantes de la "Cooperativa de Pescadores Roos Carlos Baker" y se hacen algunas observaciones cuando fueron identificados durante buceos a pulmón libre. La presencia de cada especie se relaciona con el tipo de habitat.
Tipo: Journal Contribution
Palavras-chave: New records; Fish; Fishermen; Abundance; Fish; Fishermen; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_2936.
Ano: 1984
URL: http://hdl.handle.net/1834/4037

Les conflits dans les pêches sénégalaise
Provedor de dados: 20
Autores: Bakhayokho, M.
Les conflits opposant les pêcheurs travaillant avec des engins fixes à ceux opérant avec des engins mobiles sur les mêmes zones de pêche ne sont pas rares au Sénégal. On peut citer le cas qui existe entre les pêcheurs artisants pratiquant le filet dormant ou le casier à seiche et les marins des chalutiers de la pêche industrielle.
Tipo: Book
Palavras-chave: Fish; Fish consumption; Ships; Saline water; Water; Fishery disputes; Fishery organizations; Ships; Fish; Water; Saline water; Http://aims.fao.org/aos/agrovoc/c_7040; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_8309; Http://aims.fao.org/aos/agrovoc/c_16376.
Ano: 1990
URL: http://hdl.handle.net/1834/1694

Capacité des moules dans la réduction des teneurs en nutriments et la charge bactérienne dans les effluents piscicoles
Provedor de dados: 20
Autores: Chebil Ajjabi, L.; Romdhane, M.S.; El Abed, A.
L’effluent des élevages de poissons renferme des concentrations plus élevées en nutriments dissous et en particules en suspension que celles présentes dans l’eau entrante. Cet état entraine par conséquent, des problèmes d’ordre environnementaux affectant les eaux côtières dues à l’eutrophisation et l’augmentation de la turbidité. Afin d’améliorer la qualité de l’effluent avant son déversement dans le milieu naturel, l’utilisation des bivalves comme filtre biologique est une alternative adéquate. Cette étude analyse la capacité de la moule Mytilus galloprovincialis de réduire les teneurs en sels nutritifs et la charge bactérienne dans les effluents de loups Dicentrarchus labrax en élevage. L’effluent issu des bassins de grossissement est pompé directement...
Tipo: Journal Contribution
Palavras-chave: Aquaculture effluents; Bacteria; Biofilters; Chlorophylls; Chlorophylls; Culture effects; Density; Effluents; Filtration; Fish; Mussel culture; Nitrogen; Nutrients (mineral); Phosphorus; Suspended particulate matter; Wastewater recycling; Wastewater treatment; Water quality; Fish; Nitrogen; Phosphorus; Water quality; Mussels; Nutrients; Bacteria; Chlorophylls; Density; Effluents; Filtration; Wastewater treatment.
Ano: 2008
URL: http://hdl.handle.net/1834/3756

Estudio taxonómico preliminar de la ictiofauna de Bahía Malaga (Pacífico colombiano)
Provedor de dados: 20
Autores: Rubio-R., E.A.
Se presenta la composición taxonómica preliminar de la fauna ictiológica colectada entres estaciones de la Bahía de Málaga entre marzo de 1980 y marzo de 1981. Los resultados muestran la presencia dentro de la bahía de 123 especies y 84 géneros pertenecientes a 40 familias, la gran mayoría eurihalinas de origen marino. Las especies más abundantes en nuestras capturas fueron LUe stolifera (Clupeidae) y Eucinostomus californiensis (Gerreidae) y las familias Sciaenidae y Carangidae presentan el mayor número de especies. Se presentan los nombres vulgares locales, tallas y estaciones de colecta, así mismo para la mayoría de las especies colectadas se brindan las épocas de abundancia de juveniles dentro de la Bahía.
Tipo: Journal Contribution
Palavras-chave: Taxonomy; Fish; Size; Abundance; Taxonomy; Fish; Size; Http://aims.fao.org/aos/agrovoc/c_7631; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_7093.
Ano: 1984
URL: http://hdl.handle.net/1834/4040

Rediscovery of the holotype of Characidium sanctjohanni Dahl 1960 (Characiformes: Crenuchidae) from the Colombian Pacific slope
Provedor de dados: 84
Autores: Agudelo-Zamora,Henry D.; Ortega-Lara,Armando; Taphorn B.,Donald C.
We report the rediscovery of the holotype of Characidium sanctjohanni Dahl, previously considered as lost in the ICN collections. We present counts, measurements and photographs, also offering a comparison between the holotype and the original description.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: San Juan River; ICZN; South America; Fish.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492014001500001

Cannibalism, growth performance, and body composition of giant trahira juveniles under different photoperiods
Provedor de dados: 86
Autores: Ramos,Shayenne Elizianne; Carvalho,Aline Ferreira Souza de; Castro,Tássia Flávia Dias; Vasconcelos,Ana Carina Nogueira; Veras,Galileu Crovatto; Mourão Júnior,Carlos Alberto; Murgas,Luis David Solis.
Abstract: The objective of this work was to determine the effect of photoperiod on the cannibalism, growth, and body composition of giant trahira (Hoplias intermedius) juveniles. A completely randomized design was employed, with four photoperiods - 0L:24D, 6L:18D, 12L:12D, and 18L:6D, hours of light (L): dark (D) - and four replicates, for a period of 90 days. The analyzed parameters were: cannibalism, growth in weight and length, food consumption, feed conversion, protein efficiency rate, muscle growth, and body composition (moisture, lipid, ash, and crude protein). Fish from the 12L:12D photoperiod showed the highest survival rate and no cannibalism, as well as a great uniformity for length and mass values at the end of the experiment. The best...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hoplias intermedius; Fish; Lipids; Muscle.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600664

Shelf life and sensory assessment of tilapia quenelle during frozen storage
Provedor de dados: 86
Autores: Angelini,Maria Fernanda Calil; Galvão,Juliana Antunes; Vieira,Amanda de Freitas; Savay-da-Silva,Luciana Kimie; Shirahigue,Ligianne Din; Cabral,Ingridy Simone Ribeiro; Modesta,Regina Célia Della; Gallo,Cláudio Rosa; Oetterer,Marília.
The objective of this work was to evaluate the shelf life and sensory attributes of tilapia quenelle. Treatments consisted of two types of packages - polyethylene zipper (retort pouch) (QA) and polyethylene waxed paper box (QB) - stored at -18ºC for 120 days. Tilapia quenelle was stable for all parameters established by Brazilian legislation. Average values of the evaluated attributes in different packages, during storage, showed no significant difference, except for the "refrigeration" flavor. However, during the storage period, there were significant differences for sensory attributes, as "moist appearance", fish and product aroma, and off flavors of "mud" and "refrigeration". Preserving product quality as for its sensory attributes, during storage,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Convenience products; Fast food; Fish; Mechanically separated meat; Minced fish.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800041

Consumer Awareness, Perceptions and Behaviour Towards Farmed Versus Wild Fish
Provedor de dados: 31
Autores: Verbeke,   Wim; Brunso,   Karen.
This study provides empirical evidence about European consumer awareness, perceptions and behavior towards farmed and wild fish.  The evidence is based on three empirical studies: a consumer survey in Belgium in March 2003, focus group discussions with consumers in Belgium and Spain in May 2004, and a pan-European consumer survey with a sample of 4,786 fish consumers in Belgium, the Netherlands, Denmark, Span and Poland in November-December 2004.  Consumer awareness about the farmed or wild origin of fish is rather poor, particular among lighter fish user groups.  Perceptions are quite diverse across Europe.  Furthermore, perceptions often contrast with current scientific evidence, in particular with respect to behalf and nutritional value where consumers...
Tipo: Conference Paper or Presentation
Palavras-chave: Attitude; Aquaculture; Consumer; Fish; SEAFOODplus; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries; D12; M31; Q13; Q22.
Ano: 2005
URL: http://purl.umn.edu/56075

Fish Chain Performance in Madrid Market: An Empirical Analysis
Provedor de dados: 31
Autores: de Felipe,   Isabel; Briz,   Julian.
Food chain analysis is becoming a useful instrument to increase efficiency. We focus the attention in the fish sector looking at the links from consumer to wholesalers in the region of Madrid. In order to get adequate information we developed face to face enquiries to the consumers, retailers and wholesalers. The analysis of the Madrid market give us a useful approach of the national and international sector, due to the fact that Mercamadrid is the biggest fish wholesale market in Europe, and the consumption in Madrid is representative in many ways of the Spanish market. Finally there are some conclusions and recommendations oriented toward the stakeholders.
Tipo: Conference Paper or Presentation
Palavras-chave: Fish; Food chain; Performance; Competition; Agribusiness.
Ano: 2004
URL: http://purl.umn.edu/24987

Consumer Demand for Meat Cuts and Seafood
Provedor de dados: 31
Autores: Davis,   Christopher G.; Lin,   Biing-Hwan; Yen,   Steven T.
Household at-home consumption of different types and cuts of meat and fish products is investigated by estimating a large censored demand system with a two-step procedure using ACNielsen's Homescan data. We find different price and expenditure elasticities between low-income and high-income households. High income households are less responsive to price changes, and the substitution patterns also differ between the low- and high-income households. Whereas the uncompensated elasticities suggest a mixture of gross substitutes and complements among the products for both low- and high-income households, the compensated elasticities suggest net substitution is the obvious pattern for the low-income households.
Tipo: Conference Paper or Presentation
Palavras-chave: Censored dependent variables; Sample selection model; Meat; Fish; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; D12; C34.
Ano: 2007
URL: http://purl.umn.edu/9855

Open Access and Extinction
Provedor de dados: 31
Autores: Berck,   Peter.
Published in Econometrica, v.47:4, July 1979, p.877-882
Tipo: Working or Discussion Paper
Palavras-chave: Biology; Conservation; Economics; Fish; Mathematical models; Natural resources.
Ano: 1977
URL: http://purl.umn.edu/37690

ANÁLISE DO COMÉRCIO DE PESCADO ENTRE BRASIL E OS ESTADOS UNIDOS.NÁLISE DO COMÉRCIO DE PESCADO ENTRE BRASIL E OS ESTADOS UNIDOS.
Provedor de dados: 31
Autores: Carvalho,   Rosemeiry Melo; Kolb,   Pedro Carneiro.
Esse trabalho tem como objetivo estimar as equações de oferta e demanda de pescado comercializado entre o Brasil e os Estados Unidos no período entre 1996 e 2006.  As variáveis incluídas no modelo foram: quantidade comercializada, preço, renda per capita do americano e a taxa de câmbio do período. De acordo com os resultados obtidos pode-se concluir que a demanda e a oferta de pescado são elásticas, de modo que um aumento no preço do produto provoca variações mais que proporcionais na quantidade comercializada. Em relação à renda, verifica-se que, no mercado norte-americano, o pescado brasileiro é considerado um bem inferior. Desde o ano de 2003 o valor das exportações brasileiras de pescado para os Estados Unidos tem diminuído, podendo ser atribuído, a...
Tipo: Conference Paper or Presentation
Palavras-chave: Pescado; Comércio internacional; Brasil; Estados Unidos; Fish; International trade; Brazil; United States; International Relations/Trade; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/108156

Policy consequences of better stock estimates in Pacific halibut fisheries
Provedor de dados: 31
Autores: Berck,   Peter; Johns,   Grace.
Tipo: Working or Discussion Paper
Palavras-chave: Economic aspects; Fish; Marine resources; Public.
Ano: 1985
URL: http://purl.umn.edu/43635

VANTAGENS COMPARATIVAS E DESEMPENHO DAS EXPORTAÇÕES DO SETOR PESQUEIRO BRASILEIRO NO MERCADO NORTE-AMERICANO
Provedor de dados: 31
Autores: Carvalho,   Rosemeiry Melo; Araujo,   Rochele Alves De.
Esse estudo tem como principal objetivo analisar a competitividade das exportações brasileiras de pescado no mercado dos Estados Unidos no período de 2000 a 2006. Para identificar os produtos que apresentam vantagem comparativa revelada e analisar a qualidade de especialização foram utilizados os indicadores de Vantagem Comparativa Revelada (VCR), a Taxa de Cobertura (TC) e indicador de Desempenho Comercial (DES). Com base nos resultados obtidos concluiu-se que os produtos do setor pesqueiro brasileiro apresentam vantagem comparativa no mercado norte-americano, destacando-se os crustáceos e os peixes (fresco, frio e congelado inteiro). Esses produtos estão em situação competitiva ótima, ou seja, têm vantagem comparativa e aumentaram sua inserção no mercado...
Tipo: Conference Paper or Presentation
Palavras-chave: Competitividade; Pescado; Brasil; Estados Unidos; Competitiveness; Fish; Brazilian; United States; International Relations/Trade; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/108155

MEASUREMENT OF SUBSTITUTABILITY BETWEEN U.S. DOMESTIC CATFISH AND IMPORTED FISH
Provedor de dados: 31
Autores: Lee,   Young-Jae; Kennedy,   P. Lynn.
This study examines p-interdependence and quantifies q-substitutability between domestic catfish and different species of imported fish in the U.S. fish market. In doing so, this study uses cointegration analyses for p-interdependence and structural analyses for q-substitutability. Cointegration analysis identifies the long run price equilibria between U.S. domestic catfish and different species of imported fish. The structural analyses show a degree of q-substitutability.
Tipo: Conference Paper or Presentation
Palavras-chave: Cointegration; Structural analyses; Fish; Imports; P-interdependence; And             q-substitutability; International Relations/Trade.
Ano: 2009
URL: http://purl.umn.edu/46782

Complements and Meat Demand in the U.S.
Provedor de dados: 31
Autores: Davis,   Christopher G.; Stefanova,   Stela; Hahn,   William F.; Yen,   Steven T.
In this study we estimated the price elasticities among meats, vegetables, grains, and potatoes and the impact that different levels of income have on the demand for these commodities.  The 2005 Nielsen retail home scan data were used to construct a censored demand system of 14 equations.   Results revealed that the uncompensated cross-price elasticities for both low and high-incomes suggest both substitution and complement relationships, while the compensated price elasticities are dominated primarily by substitution relationships.  Our findings also revealed that expenditure elasticities among both low and high-income households differ for most commodities.
Tipo: Conference Paper or Presentation
Palavras-chave: Censored dependent variables; Meats; Poultry; Fish; Vegetables; Sample selection model; Two-step estimation; Demand and Price Analysis; Livestock Production/Industries; C25; D12; Q11.
Ano: 2008
URL: http://purl.umn.edu/6406

How do affective health-related and cognitive determinants influence fish consumption? A consumer survey in five European countries
Provedor de dados: 31
Autores: Pieniak,   Zuzanna; Verbeke,   Wim; Scholderer,   Joachim; Brunso,   Karen; Olsen,   Svein Ottar.
This paper focuses on exploring whether and to what extent affective health-related and cognitive determinants have an impact on fish consumption behaviour. Cross-sectional data were collected through the SEAFOODplus pan-European consumer survey (n=4,786) with samples representative for age and region in Belgium, the Netherlands, Denmark, Spain and Poland. Consumers’ belief that eating fish is healthy and their interest in healthy eating positively influence fish consumption behaviour. Subjective knowledge is found to be a more important predictor of fish consumption than objective knowledge. Age and education contribute significantly to explaining fish consumption behaviour. However, the age and education effects on fish consumption frequency are indirect...
Tipo: Conference Paper or Presentation
Palavras-chave: Consumer; Fish; Determinants; Model; Food Consumption/Nutrition/Food Safety.
Ano: 2008
URL: http://purl.umn.edu/44326

Land Use Change and Ecosystem Valuation in North Georgia
Provedor de dados: 31
Autores: Ngugi,   Daniel; Mullen,   Jeffrey D.; Bergstrom,   John C.
A model of land allocation at the aggregate watershed level was developed assuming profit/net benefit maximization under risk neutrality. The econometric land use model was analyzed as an equation by equation SURE model as all the independent variables were the same for both equations. In analyzing effect of land use change on water quality, we took year 2005 as our baseline and postulated three land use scenarios. We applied Benefit Transfer techniques to value water quality changes resulting from land use change and estimated lower bounds for WTP to improve water quality to meet the FCB criterion for drinking water supply and fishing waters and BOD (DO) criteria for fishing waters. Water quality modeling revealed that land use change would result in...
Tipo: Conference Paper or Presentation
Palavras-chave: Ecosystem; Economic value; North Georgia; Land use; Land use change; Fish; Water quality; Structural time series; Willingness to pay; Benefit transfer; Forecasting; Vector autoregression; Upper Chattahoochee River; Environmental Economics and Policy; Land Economics/Use.
Ano: 2008
URL: http://purl.umn.edu/6119

Consumer Interest and Marketing Potential of Information on Fish Labels
Provedor de dados: 31
Autores: Pieniak,   Zuzanna; Verbeke,   Wim.
Food labels are an important source of information to consumers. However, little scientific evidence is available on the type of information consumers seek on product labels and how consumers use food labels. The objective of this study is to assess consumers’ use of mandatory information cues and interest in potential information cues placed on fish labels, packages or shelves in five European countries. A cross-sectional consumer survey was carried out in November-December 2004 in five European countries: Belgium, Denmark, the Netherlands, Poland and Spain and a sample representative for age and region within each country has been obtained. Total sample size is 4,786. The results show a high use of on-label information cues; hence, labels were found as...
Tipo: Conference Paper or Presentation
Palavras-chave: Consumer; Fish; Label; Consumer/Household Economics; Marketing.
Ano: 2008
URL: http://purl.umn.edu/44235

DEMAND FOR MEAT AND FISH PRODUCTS IN KOREA
Provedor de dados: 31
Autores: Jung,   Jione; Koo,   Won W.
The Korean livestock industry is currently facing the critical challenge of the market liberalization trend under the World Trade Organization. This study analyzes the consumption behavior of meat and fish products in Korea, by estimating the Linear Approximate Almost Ideal Demand System (LA/AIDS). The empirical results indicate that beef imports in Korea would increase in the future under trade liberalization. If cheap and better quality imported beef are introduced to Korean consumers, Hanwoo (Korean domestic cattle) beef would not maintain its market share.  Key words: Meat, fish, trade liberalization, per capita consumption, demand, separability, and price elasticity.
Tipo: Conference Paper or Presentation
Palavras-chave: Meat; Fish; Trade liberalization; Per capita consumption; Demand; Separability; And price elasticity.; Demand and Price Analysis.
Ano: 2002
URL: http://purl.umn.edu/19895

AN ECONOMETRIC ANALYSIS OF DEMAND FOR MEAT AND FISH PRODUCTS IN KOREA
Provedor de dados: 31
Autores: Jung,   Jione; Koo,   Won W.
This study analyzes the structure of Korean meat and fish product demand.  The Linear Approximate Almost Ideal Demand System (LA/AIDS) is used to estimate Korean meat and fish demand. Since the expenditure term is endogenous, the three-stage least squares (3SLS) estimator is used to estimate the demand system. Empirical results indicate that beef imports would increase with increases in per capita income. If imported beef becomes less expensive as a result of the trade liberalization policy adopted by the Korean government, Hanwoo beef would not be competitive and could lose its market share. Pork and chicken would be able to maintain market shares, but most fish products would lose market shares.
Tipo: Working or Discussion Paper
Palavras-chave: Demand; Almost ideal demand system; Meat; Fish; Endogeneity; Rotterdam model; Separabiilty; Estimator; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2000
URL: http://purl.umn.edu/23122

Reducing fish losses due to Epizootic Ulcerative Syndrome - An Ex Ante Evaluation
Provedor de dados: 31
Autores: Centre for International Economics.
The Australian Centre for International Agricultural Research (ACIAR) project no. 9130 established causes and control measures for epizootic ulcerative syndrome, a major killer of wild and cultured fish. The project cost $1.7 million dollars and, based on conservative assumptions, could yield net benefits (in present value terms) of $56 million. These significant benefits are a result of the importance of fish production in Australia, Indonesia and Thailand, both as a commercial crop and a source of subsistence income.  These benefits are based on the assumption that the knowledge obtained from the project is actually adopted by fish producers and others. There is no guarantee of this, and the results should be interpreted in that light. This also suggests...
Tipo: Book
Palavras-chave: Fish; Production; Australia; Indonesia; Thailand; Epizootic ulcerative syndrome; Disease; Agricultural and Food Policy; Food Security and Poverty; International Development; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/47499

Length-weight relationships and prediction equations of body composition of farm raised Astyanax aff. Fasciatus (Actinopterygii: Characiformes: Characidae)
Provedor de dados: 103
Autores: Furuya,Valéria R.B.; Michelato,Mariana; Cruz,Thais P. da; Furuya,Wilson M.
This study ascertains the length-weight relationship and predicts body composition equations in cultivated Astyanax aff. fasciatus. A total of 300 fish were distributed in five groups according to body weight: 1.19 ± 0.18, 3.7 ± 0.70, 7.55 ± 0.97, 12.28 ± 2.32 and 22.16 ± 2.64 g. The length-weight relationship was elaborated using linear (y i = b0 + b1x i) or second-order (y i = b0 + b1x i + b1x i²) regression analysis. The value of the b slope in the length-weight relationship was 3.6971 and the intercept was 0.0031. The prediction equations obtained for body moisture, crude protein, crude lipid and ash were, y = 71.680 - 0.404BW, y = 17.140 - 0.095BW, y = 8.432 +0.364BW and y = 3.720 - 0.032BW, respectively, where BW is the body weight of fish (g). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Fish; Growth; Mathematical modeling; Regression analysis.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000600001

Morphology, histology and histochemistry of the digestive tract of the Banded tilapia, Tilapia sparrmanii (Perciformes: Cichlidae)
Provedor de dados: 103
Autores: Okuthe,Grace E.; Bhomela,Bongile.
ABSTRACT This study described anatomical, histological and histochemical features of the mucosal layer of the digestive tract of Tilapia sparrmanii Smith, 1840, an omnivorous freshwater fish endemic to Southern Africa. This species exhibited a short thick oesophagus with long deep longitudinal folds (466.68 ± 16.91 µm), and a thick (173.50 ± 10.92 µm) muscular layer that allow the passage of large food items. The mucosa was lined with stratified secretory epithelium rich in goblet cells that secreted neutral and acid mucins. The stomach was a sac-like structure with simple tubular glands surrounded by connective tissue. The mucosa was lined with simple columnar epithelium and the lamina propria exhibited a well-developed layer of gastric glands that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Gastrointestinal tract; Histo-architecture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100325

Composition of gastrointestinal content, protease and lipase activities in summer and winter of four freshwater siluriforms (Teleostei: Actinopterygii) with two different feeding habits
Provedor de dados: 103
Autores: Almeida,Ana Paula Gottlieb; Zardo,Everton Luis; Toni,Candida; Behr,Everton Rodolfo; Silva,Leila Picolli da; Vieira,João Paes; Loro,Vania Lúcia; Baldisserotto,Bernardo.
ABSTRACT The aim of this study was to determine the composition of gastrointestinal content and protease and lipase activities in summer and winter as well as to evaluate the relationship between digestive enzyme activity and centesimal composition of gastrointestinal content and feeding habits of two omnivorous species, Rhamdia quelen (Quoy &amp; Gaimard, 1824) and Pimelodus maculatus (LaCèpede, 1803), and of two detritivorous species, Loricariichthys anus (Valenciennes, 1835) and Hypostomus commersoni (Valenciennes, 1836). The activities of pepsin, trypsin, chymotrypsin, and lipase, and the levels of proteins and lipids in the gastrointestinal tract, were evaluated. The enzyme activities were not related to the centesimal composition of gastrointestinal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chymotrypsin; Fish; Lipase; Pepsin; Trypsin.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100322

Contribution of the CASA system, based on open source software, to the assessment of sperm characteristics: informetric and usage-based approaches
Provedor de dados: 96
Autores: Neumann,Giovano; Bernardes Júnior,Jurandir Joaquim; Sanches,Paulo Vanderlei; Piana,Pitágoras Augusto; Bombardelli,Robie Allan.
ABSTRACT By using informetric tools, we evaluated the contribution and impact of the open source computer-assisted sperm analysis (CASA) software on sperm studies, especially pertaining to fish. The article was cited 125 times between 2007 and 2014 in four publication types (articles, doctoral dissertations, master’s theses, and books). Among articles, the number of citations increased at rate of three citations per year and the calculated h-index was 17. Of the studies that cited Wilson-Leedy and Ingermann (2007), fish were the main group of organisms studied (61 articles); of these, 34 articles used the open source CASA, covering 23 marine or freshwater species. Studies conducted in 12 countries were published in 21 journals. Four ways of knowledge...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Computational analysis; Fish; Motility; Scientometry; Spermatozoa.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000700560

Mathematical models to predict growth, fillet traits, and composition of wild traíra, Hoplias malabaricus
Provedor de dados: 96
Autores: Furuya,Valéria Rossetto Barriviera; Michelato,Mariana; Salaro,Ana Lúcia; Cruz,Thais Pereira da; Urbich,Allan Vinnícius; Ribeiro,Jonathan Willian Andrade; Batista,Dayane Cheritt; Furuya,Wilson Massamitu.
ABSTRACT This study aimed to determine the length-weight relationship and mathematical models to predict dressed and fillet weight and yield and fillet composition of wild traíra, Hoplias malabaricus (Bloch, 1794). A total of 80 marketable-sized fish from 292.28 to 2879.57 g and 32.06 to 61.19 cm were used. The length:weight ratio was estimated using the equation:    W = a ×  L b, in which W is body weight (g) and L is length (cm). The models of dressed and fillet weight and yield and body were elaborated using first-order    (   y ^ i = β 0 + β 1  x i ) or second-order    (   y ^ i = β 0 + β 1  x i + β 1  x i 2 ) linear regression analyses. The value of slope b in the length:weight ratio was 3.3732 and intercept was 0.0029. The prediction equations...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Carcass; Fish; Growth curve; Meat quality.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100158

Phytase in diets for Nile tilapia in the growth period
Provedor de dados: 96
Autores: Bock,Claudio Luiz; Pezzato,Luiz Edivaldo; Cantelmo,Osmar Angelo; Barros,Margarida Maria.
This research was carried out to compare the effect of phytase on performance, in the incorporation and excretion phosphorus in Nile tilápia. Four diets were used: one standard (contol), composed by 3,200 DE kcal ED/kg of ration and 30.0% CP and supplemented with phosphorus (4.0% of dicalcium phosphate), considering the treatment control, and others three, without phosphorus supplementation, with different phytase levels (1,000, 1,500, and 2,000 uf/kg), with four replication, per a period of 82 days. Circular tanks of fiber glass, with constant flow and aeration were used. The results demonstrated that the use of phytase in diets for fish production can reduce the levels of inorganic phosphorus in the diets and minimizing the impacts caused by phosphorus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Excretion; Fish; Growth; Oreochromis niloticus; Phosphorus; Pollution.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007000700001

Dietary phosphorus requirement of pejerrey fingerlings (Odontesthes bonariensis)
Provedor de dados: 96
Autores: Rocha,Cleber Bastos; Portelinha,Mauro Kaster; Fernandes,João Morato; Britto,Aline Conceição Pfaff de; Piedras,Sérgio Renato Noguez; Pouey,Juvêncio Luís Osório Fernandes.
To determine the available phosphorus requirement of pejerrey fish, four semi-purified diets were formulated to contain increasing available phosphorus levels (0.90, 2.7, 5.7 and 8.3 g/kg). Each diet was assigned to groups of 10 fish with average weight of 1.26±0.17 g, distributed into a completely randomized design with four treatments and four replications. Fish were fed at a rate of 10% total biomass four times a day for 60 days. The parameters productive performance, body chemical composition and mineral composition of bones and scales were evaluated. The best productive performance of fingerlings was obtained with the diet containing 4.3 g/kg available phosphorus. The average level of 6.3 g/kg available phosphorus promotes better mineralization of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bone; Fish; Food; Growth; Mineral; Nutrition.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000200001

Reproductive performance of female Nile tilapia ( Oreochromis niloticus ) fed diets with different digestible energy levels
Provedor de dados: 96
Autores: Orlando,Tamira Maria; Oliveira,Marinez Moraes de; Paulino,Renan Rosa; Costa,Adriano Carvalho; Allaman,Ivan Bezerra; Rosa,Priscila Vieira.
ABSTRACT This study aimed to evaluate the reproductive performance of female Nile tilapia (Oreochromis niloticus) fed diets containing different levels of digestible energy (DE). The fish were housed in 15 fiberglass tanks (500 L) in a recirculating system at an average temperature of 27.5 °C. The treatments consisted of five diets with increasing levels of DE (3,200; 3,400; 3,600; 3,800; and 4,000 kcal/kg). The levels of DE did not significantly influence the final weight or the hepatosomatic, gonadosomatic, and visceral fat indices. The absolute fecundity was influenced by the treatments, for which the highest values were observed from the 3,600 kcal/kg DE level and upward. The proximate composition of the fish also had a significant effect on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body composition; Fecundity; Fish; Nutrition; Reproduction.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100001

Genetic variability of tambaqui broodstocks in the Brazilian state of Pará
Provedor de dados: 96
Autores: Ferreira,Leandro de Araújo; Fazzi-Gomes,Paola Fabiana; Guerreiro,Sávio; Rodrigues,Marília Danyelle Nunes; Ribeiro-dos-Santos,Ândrea Kely; Santos,Sidney; Hamoy,Igor.
ABSTRACT The present study evaluated the genetic variability of the broodstocks of tambaqui hatcheries in the Brazilian state of Pará. Samples were obtained from the caudal fin of 110 broodstocks from one hatchery in each of four municipalities (Santarém, Peixe-Boi, Breu-Branco, and Ulianópolis), representing all the individuals of each hatchery stock. The samples were genotyped using the multiplex system microsatellite markers. Data were used to calculate observed and expected heterozygosity, number of alleles per locus, and allelic richness. The effective population size and inbreeding coefficient were also calculated. The genetic differentiation between populations was evaluated by using FST, and population structuring by the most likely number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colossoma macropomum; Fish; Genetic diversity; Hatcheries.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100302

Effects of hot and cold smoking processes on organoleptic properties, yield and composition of matrinxa fillet
Provedor de dados: 96
Autores: Franco,Maria Luiza Rodrigues de Souza; Viegas,Elisabete Maria Macedo; Kronka,Sérgio Nascimento; Vidotti,Rose Meire; Assano,Marcelo; Gasparino,Eliane.
The effects of hot (45-90ºC/5 hours) and cold (27-45ºC/10 hours) smoking processes on the organoleptic properties, yield and composition of matrinxa (Brycon cephalus) fillets are evaluated. No significant differences were observed for fillet yield in both non-smoked and smoked fillets. Smoking process losses were significantly higher for hot smoked (19.37%) when compared to cold smoked (17.08%). Smoking process reduced moisture (in natura = 72.91%, for hot = 58.51% and cold = 59.68%) and increased crude protein, lipid and ash contents. However, there was a significant difference only for protein level between hot smoked (28.07%) and cold smoked (27.14%). Cold smoked process resulted in better fillet appearance and color, while hot smoked presented superior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brycon cephalus; Composition smoking; Fish; Sensory attributes.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000400001

Oil blends with sesame oil in fish diets: oxidative stress status and fatty acid profiles of lambari
Provedor de dados: 96
Autores: Natori,Mariene Miyoko; Oliveira,Ricardo Henrique Franco de; Parisi,Giuliana; Bonelli,Antonio; Melo,Mariza Pires de; Viegas,Elisabete Maria Macedo.
ABSTRACT The objective of this research was to evaluate the growth performance, oxidative stress, and fatty acid profiles of lambari (Astyanax altiparanae) fed diets containing different lipid sources: soybean oil, linseed oil, and freshwater fish residue oil combined or otherwise with sesame oil (SEO). The fish (mean weight 0.95±0.46 g; mean length 4.21±2.77 cm) were distributed into 24 cages (cage capacity: 0.70 m3; fish density: 276 individuals m−3) in six treatments and four replicates. After 80 days of feeding, they were weighed, and samples were collected for assay of catalase, glutathione reductase (GR), and lactate dehydrogenase (LDH) enzyme activities in muscle and analysis of the fatty acid profiles of polar and neutral fractions of whole...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Lipid; Nutrition; Oxidation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100150

Effects of the spermatozoa: oocyte ratio, water volume and water temperature on artificial fertilization and sperm activation of cascudo-preto
Provedor de dados: 96
Autores: Bombardelli,Robie Allan; Sanches,Eduardo Antônio; Baggio,Diego Mendes; Sykora,Renata Marino; Souza,Bruno Estevão de; Tessaro,Lucélia; Piana,Pitágoras Augusto.
The objective of this study was to evaluate the effects of water volume and water temperature on the sperm motility duration and the number of spermatozoa, and the water volume on the fertilization rates of oocytes of Rhinelepis aspera. Experiments were carried out to evaluate the effect of semen dilutions (1.74×10-5, 1.74×10-4, 1.74×10-3, 1.74×10-2, 1.74×10-1 and 1.00 mL of sperm.mL-1 of water) and water temperature (5, 10, 15, 20, 25, 30, 35, 40, 45, and 50 ºC) on spermatozoa motility duration. In addition, the effects of insemination dose (7×10³, 7×10(4), 7×10(5), 7×10(6) and 7×10(7) spermatozoa.oocyte-1) and water volume (1.0, 30.0, 60.0, 90.0 and 120.0 mL water.2.0 mL-1 oocytes) on the artificial fertilization rates of oocytes were evaluated. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Loricariidae; Oocyte; Reproduction; Semen.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100001

Artificial fertilization of oocytes and sperm activation in pacu: effects of the spermatozoa:oocyte ratio, water volume, and in natura semen preservation
Provedor de dados: 96
Autores: Sanches,Eduardo Antônio; Baggio,Diego Mendes; Piana,Pitágoras Augusto; Souza,Bruno Estevão de; Bombardelli,Robie Allan.
The objective of this work was to investigate artificial fertilization and the duration of sperm motility in pacu with different insemination doses, water volume, and in natura semen preservation. It was carried out four experimentsfor evaluation of insemination doses (7x10³, 7x10(4), 7x10(5), 7x10(6), and 7x10(7) spermatozoa oocytes-1) on the artificial fertilization of oocytes; the effect of water volume (0.5, 15.0, 30.0, 45.0, and 60.0 mL water mL-1 of oocyte) with insemination doses of 105,481 and 210,963 spermatozoa oocytes-1; the effect of semen dilutions (0.005, 0.05, 0.5, and 5.0 µL semen mL-1 of water) on sperm motility duration; and the effect of storage at 15ºC for 9h on sperm motility duration and sperm survival ratio. The highest results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Gametes; Insemination doses; Myleinae; Reproduction.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100001

Effect of photoperiod on locomotor activity, growth, feed efficiency and gonadal development of Nile tilapia
Provedor de dados: 96
Autores: Veras,Galileu Crovatto; Murgas,Luis David Solis; Rosa,Priscila Vieira; Zangeronimo,Márcio Gilberto; Ferreira,Matheus Soares da Silva; Leon,Jonathan Antonio Solis-De.
The objective of this study was to evaluate the effect of photoperiod on locomotor activity, growth and gonadal development in Nile tilapia (Oreochromis niloticus) fingerlings. A completely randomised design was used, with five treatments (0L:24D, 6L:18D, 12L:12D, 18L:6D and 24L:0D) and four replicates, with the aquarium as the experimental unit. One hundred and sixty fingerlings of tilapia weighing 3.21±0.05 g and measuring 4.35±0.07 cm each were distributed among 20 aquaria of 20 L in a recirculation system with the temperature controlled to 27 °C, with eight fish per aquarium. Feeding was carried out twice daily for 75 days, with extruded feed containing 40% crude protein. The fingerlings subjected to a photoperiod of 12L:12D as well as those under...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed intake; Fish; Locomotor rhythm; Oreochromis niloticus; Performance; Sexual maturation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200002

Ventilatory frequency and anesthetic efficacy in silver catfish, Rhamdia quelen: a comparative approach between different essential oils
Provedor de dados: 96
Autores: Becker,Alessandra Janaína; Fogliarini,Carine de Oliveira; Souza,Carine de Freitas; Becker,Alexssandro Geferson; Mourão,Rosa Helena Veras; Silva,Lenise Vargas Flôres da; Baldisserotto,Bernardo.
ABSTRACT This study investigated the efficacy of essential oils of Lippia alba (EOLA) citral chemotype and Lippia origanoides (EOLO) and their effects on ventilatory frequency (VF) of silver catfish, Rhamdia quelen. Fish were exposed to 50-300 μL L−1 of EOLA and 25-300 μL L−1 of EOLO to determine induction times to sedation, anesthesia, and recovery. Moreover, VF was determined in fish exposed to 5 or 10 μL L−1 of EOLA and of EOLO for 8 h. The increasing concentration of essential oils proportionally decreased sedation and anesthesia induction times. The highest EOLA concentration increased VF of fish from the control group at 1 h of exposure, but VF decreased at both EOLO concentrations after 2 h. The EOLA citral chemotype and EOLO were effective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Fish; Physiology; Rhamdia quelen.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100105

Length-weight relationship and prediction equations of body composition for growing-finishing cage-farmed Nile tilapia
Provedor de dados: 96
Autores: Silva,Tarcila Souza de Castro; Santos,Lilian Dena dos; Silva,Lilian Carolina Rosa da; Michelato,Mariana; Furuya,Valéria Rossetto Barriviera; Furuya,Wilson Massamitu.
The objective of the present study was to develop models for predicting live weight from the length-weight relationship and body composition of Nile tilapia. A total of 3,000 juvenile fish (initial weight = 28.6±4.16 g and standard length = 13.8±0.16 cm) were distributed into three circular cages (12 m3 each). The fish were hand-fed extruded diets containing 332 g kg-1 of crude protein and 3,230 kcal kg-1 of digestible energy, until apparent satiety, twice daily, for 100 days. Twelve fish were collected from each cage every 20 days for measurements of body weight and length, and proximate composition analysis; statistical analysis was conducted using linear regression. The value of the slope b and the intercept for the length-weight relationship were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acids; Aquaculture; Fish; Mathematical modeling.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000400133

Nutritional innovations on amino acids supplementation in Nile tilapia diets
Provedor de dados: 96
Autores: Furuya,Wilson Massamitu; Furuya,Valéria Rossetto Barriviera.
The optimal dietary supply of amino acids to tilapia has been studied for many years. Nevertheless, a general agreement on the amino acid requirement for tilapias has not been established. In order to optimize efficiency and reduce surplus nitrogen, values of digestibility of each amino acid of feed must be considered. Due to variations in the amino acid requirement due to new tilapia strains introduction, continuous research on amino acid requirements is necessary to elaborate economical and environmental sustainability diets, also improving fish growth, efficiency and fillet yield. The concept of ideal protein in tilapia diets was introduced more than ten years ago, and new researches have shown the importance of protein and amino acids on fish...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acids; Digestibility; Fish; Ideal protein; Meat quality; Performance.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300010

Digestible methionine + cystine requirement for Nile tilapia from 550 to 700 g
Provedor de dados: 96
Autores: Michelato,Mariana; Furuya,Wilson Massamitu; Graciano,Themis Sakaguti; Vidal,Luiz Vítor Oliveira; Xavier,Tadeu Orlandi; Moura,Lorena Batista de; Furuya,Valéria Rossetto Barriviera.
This trial was conducted to determine the dietary digestible methionine + cystine requirement of Nile tilapia (550 to 700 g) based on the ideal protein concept. Six hundred fish were distributed in a completely randomized design with five treatments and four replicates, with 30 fish per experimental unit. The fish were fed diets containing approximately 262 g of digestible protein/kg, 3,040 kcal of digestible energy/kg and 7.90, 9.40, 10.90, 12.40 or 13.90 g of methionine + cystine/kg. The fish were hand-fed three times a day until apparent satiation for 30 days. No effects of dietary methionine + cystine on feed conversion ratio, daily protein deposition, whole body moisture, fillet moisture, crude protein, ether extract and ash, plasmatic HDL and LDL...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acids; Body composition; Fillet yield; Fish; Performance; Plasmatic lipid pattern.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100002

Cooling of curimba (Prochilodus lineatus) embryos using different concentrations of dimethyl sulphoxide and methanol
Provedor de dados: 96
Autores: Machado,Gilmara Junqueira; Murgas,Luis David Solis; Palhares,Priscila Cotta; Assis,Isadora de Lima; Castro,Tássia Flávia Dias.
ABSTRACT This study aimed to evaluate the effect of using different concentrations (5, 7.5, 10, and 12.5%) of two permeating cryoprotectants, dimethyl sulphoxide (DMSO) and methanol, on Prochilodus lineatus embryos while being subjected to cooling for 2, 4, 6, and 8 h at 4 °C. We analyzed the hatching rate, viable larvae, and counts of hatched and spoiled eggs and those that did not complete their development after cooling. We observed a significant interaction among variables, permeable cryoprotectant concentration, and cooling time, having the increase of these factors caused a reduction in hatching rate. The curimba embryos showed a higher sensitivity to cold at a temperature of 4 °C for 6 and 8 h, directly influencing the production of viable larvae....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Biotechnology; Cryopreservation; Eggs; Fish; Larvae.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100155

Digestible lysine requirement of Nile tilapia fingerlings fed arginine-tolysine-balanced diets
Provedor de dados: 96
Autores: Furuya,Wilson Massamitu; Graciano,Themis Sakaguti; Vidal,Luiz Vítor Oliveira; Xavier,Tadeu Orlandi; Gongora,Leonardo Dantas; Righetti,José Sérgio; Furuya,Valéria Rossetto Barriviera.
This study was conducted to determine the digestible lysine requirements of Nile tilapia fingerlings. Fish (n = 300; average initial weight = 1.44 g) were distributed 15 300-L aquariums, in a completely randomized design with five treatments and three replicates, and fed extruded diets containing 11.3, 13.7, 16.1, 18.4 or 20.8 g/kg of digestible lysine. The arginine:lysine ratio was maintained at 1.3:1. All fish were fed diets containing 281 g/kg of digestible protein and 3,372 kcal digestible energy/kg, hand-fed until apparent satiation. There was no effect of the dietary lysine levels on survival rate, or protein and ash body rates. With increasing levels of lysine in the diet, a quadratic effect on weight gain, feed conversion, protein efficiency ratio,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acids; Fish; Growth; Protein deposition.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300003

Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma
Provedor de dados: 97
Autores: SCHMACHTENBERG,OLIVER.
Rodlet cells are an unusual cell type found exclusively in teleost fishes. Their principal characteristics are a fibrous capsule and arrow or club-like structures pointing towards the apex of the cell, which are called rodlets. Rodlet cells were first described by Thelohan (1892) as undetermined sporozoan fish parasites, and soon after named Rhabdospora thelohani by Laguesse (1895). In 1906, a presently ongoing controversy started, with Plehn's independent characterization of rodlet cells as endogenous glandular cells, and a prompt refutation by Laguesse (1906). Both maintained their position, and during the following century both views continued to coexist with varying popularity, while additional interpretations of rodlet cell function were proposed....
Tipo: Journal article
Palavras-chave: Fish; Immune cell; Parasite; Rodlet cell; Teleosts.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000100005

Comparison on animal production in organic and conventional systems
Provedor de dados: 195
Autores: Rossi, Gabriel Augusto Marques; Lemos, Paulo de Paula Lopes.
The market for organic products is increasing globally, seeking to fulfill the needs and expectations of consumers who believe it’s a healthier food. There are many controversies found in studies that assess primarily the physical-chemical, microbiological and the presence of this type of food of animal origin. This review aimed to evaluate the main differences between animal foods such as meat, milk, honey, eggs and fish produced in organic systems compared to those produced in conventional systems. The main differences are related to the physical-chemical food and no relevant differences were found between the possible presence of chemical or biological hazards in food of animal origin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal products; Eggs; Fish; Food; Honey; Meat Alimentos; Carne; Leite; Ovos; Mel; Pescado.
Ano: 2013
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/5369

Veterinarians and fish breeding
Provedor de dados: 195
Autores: de Pérez, Agar Costa Alexandrino.
The objective of this article is to present to the veterinarians all the procedures related to fish breeding. It is a new area of work for these professionals which should be considered as a new reality. The importance of the presence of a veterinarian at the production site in order to warrant the quality of the product is emphasised. The main diseases, prophilaxis and treatment are reported.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Pathology; Sanity peixes; Patologia; Sanidade.
Ano: 1999
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3385

Main parasitic zoonosis transmitted by fish - a review
Provedor de dados: 195
Autores: Okumura, Maria Paula Martinez; de Pérez, Agar Costa Alexandrino; Espíndola Filho, Antonio.
Parasitic zoonosis transmitted by fish are an ever growing problem which calls the attention of researchers and public health authorities because of the health problems caused to the population after raw / rare fish consumption. In Brazil, dishes based on raw fish, such as "sushi" and "sashimis" are greatly consumed because of the influence of oriental culinary. Data show that there are zoonotic parasites in both Brazilian fresh and sea water fish. However, up to the present, there are no reports of human parasitism in Brazil (except for fagicolosis). It is believed that this statistics are related to the absence of diagnosis rather than the absence of the illness itself. Among diseases transmitted to man by fish consumption are anisakiasis;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Zoonosis; Parasitism; Public health; Raw fish consumption peixes; Zoonoses; Parasitismo; Saúde pública.
Ano: 1999
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3386

Aeromonas species isolated from PINTADO fish (Pseudoplatystoma sp): virulence factors and drug susceptibility
Provedor de dados: 59
Autores: Rall,Vera Lúcia Mores; Iaria,Sebastião Timo; Heidtmann,Sandra; Pimenta,Fabiana Cristina; Gamba,Rosa Carvalho; Pedroso,Débora Midori Myaki.
Aeromonas has been described as an emergent foodborne pathogen of increasing importance. In this study, we report that 48% of 50 Pintado fish samples collected at the retail market of São Paulo city were positive for Aeromonas sp, as detected by the direct plating method. When the presence/absence method was used, the positivity was 42%. A. caviae was the most frequent species, followed by A. hydrophila and A. sobria. Production of cytotoxic enterotoxin, observed in suckling mouse assay, was detected in 67% of A. sobria strains, in 60% of A. hydrophila strains and in 40% of A. caviae strains. In vitro tests, performed with HEp-2 cells, showed that 88% of A. hydrophila, 27% of A. sobria and 13% of A. caviae strains were positive for this toxin. The in vivo...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aeromonas sp; Virulence factors; Drug susceptibility; Fish.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000300015

Fatty acid composition of commercially important fish from Brazil
Provedor de dados: 63
Autores: Gutierrez,L.E.; Silva,R.C.M. da.
Total fat and fatty acid composition of seven fresh-water and nine marine fish commercially important in Brazil were determined. Palmitic acid was the predominant saturated fatty acid in both freshwater and marine fish. In the fat from freshwater fish the total C-16 fatty acids were higher than in marine fish. Oleic acid was the most abundant monounsaturated fatty acid and it was found in higher levels in freshwater fish. The data revealed that most freshwater fish from Brazil examined were a poor source of eicosapentaenoic (20:5) and docosahexaenoic (22:6) acids. Of the marine fish analysed, only sardine and manjuba could be recommended as a good sources of n-3 fatty acids.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatty acids; Fish; Lipids; Ômega-3.
Ano: 1993
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161993000300023

Demand for fisheries products in Brazil
Provedor de dados: 63
Autores: Sonoda,Daniel Yokoyama; Campos,Silvia Kanadani; Cyrino,José Eurico Possebon; Shirota,Ricardo.
Fish consumption per capita in Brazil is relatively modest when compared to other animal proteins. This study analyses the influence of protein prices, other food prices and population income on the fish demand in Brazil. First, the problem of fish supply in Brazil is characterized. It is followed by reviews of the relevant economic theory and methods of Almost Ideal Demand System - AIDS and their elasticity calculations. A descriptive analysis of fish demand in Brazil using the microdata called "Pesquisa de Orçamento Familiar" (Familiar Budget Research) - POF 2002-2003 is presented. Finally, demand functions and their elasticities are calculated for two different cases: one considering five groups of animal proteins (Chicken; Milk and Eggs; Fish;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: AIDS; Fish; Supply; Elasticity; Market.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000500005

Fee - fishing operation evaluation at Nothwest São Paulo State, Brazil
Provedor de dados: 63
Autores: Lopes,Ruy Bessa; Landell Filho,Luiz de Carvalho; Dias,Carlos Tadeu dos Santos.
Fee-fishing operations developed recently in Brazilian agricultural scenery in a rather disordered manner. This study, carried out at the northwest region of São Paulo State, Brazil, focuses on the productive performance of fee-fishing system. Several visits were made monthly to nine fee-fishing establishments, for six months. A questionnaire by owners targeting 13 indicators of the operation's productive performance. Data were submitted to multivariate analysis (MANOVA), principal component analysis (PCA) and cluster analysis. MANOVA indicated significant differences between the fee-fishing operations. The PCA analyses indicated, from the higher coefficient eigenvectors, three attributes for the lakes, such as productive system, fishery management and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Multivariate analyses; Productive system; Lakes.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600013

Clustering of ingredients with amino acid composition similar to the nutritional requirement of Nile tilapia
Provedor de dados: 63
Autores: Bicudo,Álvaro José de Almeida; Pinto,Luis Fernando Batista; Cyrino,José Eurico Possebon.
The search for balanced diets, which may elicit improved growth of fish, requires appropriate selection of available protein sources. This study aims at clustering feedstuffs according to amino acid profile, determining which ones show essential amino acids (EAA) profiles closer to the ideal dietary amino acids requirements of Nile tilapia (Oreochromis niloticus), and studying the relationship among amino acids feedstuffs groups. Tabled data on EAA more cystine and tyrosine, in relation to lysine contents, of 40 feedstuffs ordinarily used to formulate fish diets were studied. Feedstuffs were grouped according to amino acids profile by cluster analysis of Euclidean distances. The principal components analysis was used to determine the relationship among...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feedstuff; Fish; Multivariate analysis; Nutrition; Protein.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500004

Uma nova espécie de cestóide proteocefalídeo, Monticellia belavistensis, sp.n., parasita de Pterodoras granulosus (Valenciennes) (Pisces, Doradidae), do reservatório de Itaipu e rio Paraná, Paraná, Brasil
Provedor de dados: 104
Autores: Pavanelli,Gilberto C; Machado,Marion H; Takemoto,Ricardo M; dos Santos,Leonilda C.
In the present paper the authors describe and illustrate a new species of proteocephalidean cestode, Monticellia belavistensis, sp.n., parasite of a freshwater siluriform fish (thorny catfish). Pterodoras granulosus (Valenciennes, 1833), from the Itaipu Reservoir and Paraná River, in the region of Porto Rico. This is the first reference of a proteocephalid in this host. The values of prevalence and mean intensity of infection are given and the life cycle is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Proteocephalidea; Monticellia belavistensis; New species; Pterodoras granulosus; Paraná River; Ecology; Fish.
Ano: 1994
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751994000400001

Mudanças morfológicas dos testículos de curimbatá Prochilodus scrofa (Steindachner) (teleostei, prochilodontidae), submetido à indução hormonal
Provedor de dados: 104
Autores: Kavamoto,Emico Tahira; Narahara,Massuka Yamane; Andrade-Talmelli,Elaine Fender de.
This Study Concerns the morphological changes of the testes of "curimbatá", Prochilodus scrofa (Steindachner, 1881) at the beginning of sperm production, before and after the hormonal injections. We examined 25 three year old males that were reared in tanks at the Experimental Fish and Frog Culturing Station of Pindamonhangaba of the Fisheries Institute of São Paulo. The testes were sampled at the start of sperm production, after the first hormone injection (5 IU/g for weight of hCG), and 14 days before and after a second injection. Testicle fragments of these specimens were fixed and embedded in historesin. At the beginning of sperm production, the milky-white gonad showed consistem superficial vascularization, exceeding thick sperm under light pressure....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prochilodus scrofa; Fish; Testes; Morphology; Hormonal stimulation.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000100008

Nota complementar sobre a composição ictiofaunística da Baía de Guaratuba, Paraná, Brasil
Provedor de dados: 104
Autores: Chaves,Paulo T. C.; Vendel,Ana Lúcia.
The utilisation of multiple gears and the surveying of other areas than that of mangrove habitats have increased in 27 the number of fish species known in the Guaratuba Bay, an estuarine ecosystem located in the southern of Brazilian coastal region (25º52'S, 48º39'W). The new occurrence of a typically freshwater species (Pimelodidae) and of several Clupeiformes and Gobiidae species, reveals the importance of the salt marsh and the innermost zones of this Bay to the distribution of certain fish groups.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Estuaries; Guaratuba Bay.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500032

Liver histopathology of the fish brachydanio rerio hamilton-buchman after acute exposure to sublethal levels of the organophosphate dimethoate 500
Provedor de dados: 104
Autores: Rodrigues,Edson de Lara; Fanta,Edith.
Among the new substances that were synthesised by the chemical industiy during the last decades, with the aim to improve human prosperity, some cause negative effects on non target organisms like fish. Among the pesticides, the organophosphates (OP) are widely used in cattle management, agriculture and aquaculture activities. Brachydanio rerio Hamilton-Buchman, 1822 is used world-wide in fish-tests for the establishment of the lethal levels of pesticides. Nevertheless, these fish show morphological changes in their hepatocytes when exposed experimentally for 24 hours to the sublethal dose of 0.025 µl/l of the OP Dimethoate 500, in acute tests. Right hours after exposure, a high density of cells with cytoplasmic granulation is seen as well as focal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dimethoate; Histopathology; Fish; Liver; Organophosphates; Sublethal contamination.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200014

Aspectos reprodutivos de Sphoeroides greeleyi (Gilbert), Pisces, Osteichthyes, Tetraodontidae, da gamboa do Baguaçu, Baia De Paranaguá, Paraná, Brasil
Provedor de dados: 104
Autores: Schultz,Yart Damasceno; Favaro,Luís Fernando; Spach,Henry Louis.
The present study analyses the reproductive aspects of Sphoeroides greeleyi (Gilbert, 1900), such as morphology and histochemistry of carbohydrates in the oogenesis phases, maturity scale, time and type of spawn, sexual rate and first ripened mature size for females. From the monthly captured animais (Nov 1998 to Nov 1999) the morphometric data (entire length and total weight) were extracted and the sex and the gonadal maturity were determined. Some ovaries were prepared for microscopic analysis that charac-terized six phases for the development of the ovarian folheies. Through the carbohydrates analysis the acid carbohydrates could be related to the oogenesis maintenance and the neutral carbohydrates to the beginning of embryonic development. A maturity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Reproduetion; Histology; Histochemistry.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000100004

Influência de diferentes níveis de vitamina C na ração sobre parâmetros hematológicos de alevinos de Piaractus mesopotamicus Holmberg (Osteichthyes, Characidae)
Provedor de dados: 104
Autores: Martins,Maurício Laterça; Castajjnolli,Newton; Zuim,Sônia Maria Fontes; Urbinati,Elisabeth Criscuolo.
Haematological changes in ascorbic acid deficient fishes, observed by some authors, awoked the interest in the haematological response of pacu, Piaractus mesopotamicus. The present work studied the influence of different levels of ascorbic acid (vitamin C) in the ration on the haematological parameters of pacu. Fishes at the beginning of the experiment, presented average body weight 8.64±1.62g and 6.15±0.33cm standard length, were fed with diets containing 0. 50, 100 and 200mg ascorbic acid/kg dry ration. The present work was developed for a period of 24 weeks at the Fish Nutrition Laboratory of Aquaculture Center of Universidade Estadual Paulista (Unesp), Jaboticabal (São Paulo). The fishes were distributed by the completely randomized design in 20...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osteichthyes; Characidae; Piaractus mesopotamicus; Haematology; Vitamin C; Fish.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300016

Bacteriology of wild grey mullets, Mugil platanus Günther, from Cananéia, São Paulo State, Brazil
Provedor de dados: 104
Autores: Sousa,José Américo de; Eiras,Jorge da Costa; Ranzani-Paiva,Maria José T; Alexandrino,Agar Costa.
Bacterial strains isolated from the kidney and liver of grey mullets, Mugil platanus Giinther, 1880, captured in Cananéia, São Paulo State, Brazil, in October 1996, belong to the genera Micrococcus, Pseudomonas, Flavobacterium, Aeromonas and Vibrio. The resistance/susceptibility patterns of the isolated micro-organisms to nine antimicrobial substances were determined, the more resistant bacteria had been Pseudomonas, Flavobacterium and Micrococcus. To the best of the authors knowledge this is the first bacteriological study done on Mugil platanus in Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mugil platanus; Grey mullets; Fish; Bacteriology; Brazil.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000400015

Ocorrência e distribuição de Cetengraulis edentulus (Cuvier) (Teleostei, Engraulidae) na Laguna de Itaipu, Niterói, Rio de Janeiro, Brasil
Provedor de dados: 104
Autores: Gay,Doti; Sergipense,Sandra; Rocha,Carlos Frederico Duarte.
Cetengraulis edentulus (Cuvier, 1828) was collected in Laguna de Itaipu, Niterói, Rio de Janeiro, between february 1990 and january 1992. The analisys of spacial-seasonal occurence and biomass of C. edentulus (n=2843) showed the predominance of these species in cold time (april to sepetember) in muddy sediment, with little depth and turbid water. This species was frequent in Laguna de Itaipu during the two years study, being more abundant in cold time. The biomass of C. edentulus was high in cold time too.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cetengraulis edentulus; Occurrence; Distribution; Fish; Lagoon; Southwest Brazil.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200017

Paraoxonase activity in liver of Pacu, Piaractus mesopotamicus Holmberg (Characidae)
Provedor de dados: 104
Autores: Bastos,Vera Lucia F. Cunha; Folly,Evelize; Rossini,Ana; Ceccarelli,Paulo S.; Senhorini,José A.; Bastos,Jayme Cunha.
Enzymatic production of p-nitrophenol in liver of Piaractus mesopotamicus Holmberg, 1887 was consistently assayed at pH 8.5 using 7.5 mM paraoxon as substrate. This pacu liver paraoxonase activity was activated by NaCl. Apparent values of K M were 2.42 x 10-3 M in the presence of 0.5 M NaCl and 8.99 x 10-3 M without NaCl. Apparent maximum velocity values calculated in the absence and presence of 0.5 M NaCl were 1.09 x 10-3 µmoles/min/mg of proteins and 1.29 x 100-3 µmoles/min/mg of proteins, respectively. These Vmax values are fifty-fold the value described for trout (Salmo trutta Linnaeus, 1758) liver paraoxonase. Paraoxonase activity of pacu liver homogenates was recovered as much in cytosolic as in particulate cellular subtractions, but the particulate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Detoxication; Esterase; Fish; Organophosphate.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000300012

Paraoxonase activity in sera from Piaractus mesopotamicus Holmberg (Characidae) and Hypostomus punctatus Valenciennes (Siluridae)
Provedor de dados: 104
Autores: Bastos,Vera Lucia F. Cunha; Rossini,Ana; Alves,Marcelo V; Ceccarelli,Paulo S; de Lima,José A. Ferraz; Bastos,Jayme Cunha.
A paraoxonase activity present in serum of two Brazilian fish species was consistently assayed at pH 8.5 using 7.5 mM paraoxon final concentration. The paraoxonase activity was more activated by 0.5 M NaCl in serum of Piaractus mesopotanricus Holmberg, 1887 (pacu) than in serum of Hypostomus punctatus Valenciennes, 1840 (cascudo). Apparent values of K M were 3.3 x 10-3 M for cascudo and pacu paraoxonase activity in the presence of 0.5 M NaCl. Apparent maximum velocity values calculated in the presence of 0.5 M NaCl were 6.1 and 6.5 nmole/min/mL of serum for cascudo and pacu, respectively. Vmax/K M ratio values of determinations in the presence and absence of 0.5 M NaCl showed that NaCl had a more evident effect on increasing the affinity of serum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Detoxication; Fish; Organophosphate; Serum esterases.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000300011

Ritmicidade da alimentação e dieta de Metynnis roosevelti Eigenmann (Characidae, Myleinae) da Lagoa do Jiqui, Parnamirim, Rio Grande do Norte, Brasil
Provedor de dados: 104
Autores: Canan,Bhaskara; Gurgel,Hélio de Castro Bezerra.
The goal of this study is measure the food ingestion by M. roosevelti Eigenmann, 1915 emphasizing its feeding rhythmic. The observations were made between March 1994 to February 1995, in Jiqui Lake, Rio Grande do Norte State. The sample involved 1115 individuais, including 503 males and 613 females, collected in five waiting-net with length of 5.0 to 5.0 m and mesh of 2.0, 2.5 and 3.0 cm between opposites joins, that were exposed for 24 hours and reviewed each 6 hours. The food ingestion was predominant between 6:00 AM to 12:00 AM for males and between 6:00 PM to 12:00 PM for females. The condition factor showed lower values between 6:00 PM to 12:00 PM for males and between 12:00 PM to 6:00 AM for females. The mean level of repletion showed higher values...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metynnis roosevelti; Fish; Feeding rhythms; Jiqui Lake.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000200001

Behaviour and orcadian rhythm of the fish bathygobius soporator Valenciennes (Gobiidae) under the influence of environmental salinity and temperature
Provedor de dados: 104
Autores: Fanta,Edith.
The behavioural patterns and their cireadian rhythms may be adaptive to the peculiar environmental conditions of subtropical brackish waters where Ba-thygobius soporator Valenciennes, 1837 live. Adult fish were caught at the southern Brazilian coast from mangrove rivers and rocky shores in a bay, where temperature and water salinity vary during the day and through the year. Observation on the behaviour of the animals was undertaken in salinity 8.5ppt, 17.0ppt, 25.5ppt and 34.0ppt, each one in temperatures of 18ºC and 28ºC. Temperature and salinity affect the frequency and intensity of some of the behavioural events, more than its pattern or rhythm. Swimming is rare, decreasing along the day and with temperature increase, being even lower at low salinity;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bathygobius soporator; Fish; Behaviour; Cireadian rhythm; Salinity; Temperature.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000100021

Morphology of the retina in the freshwater fish Metynnis roosevelti Eigenmann (Characidae, Serrasalminae) and the effects of monochromatic red light
Provedor de dados: 104
Autores: Donatti,Lucélia; Fanta,Edith.
The retina of Metynnis roosevelti Eigenmann, 1915, a very active freshwater fish, was investigated by light and electron microscopy and was found to have a complex neuronal structure that allows rapid responses of visual stimuli. Retina photoreceptors are double cones, single long cones, single short cones and rods. Cone inner segments are arranged as mosaics. The outer nuclear layer contains small nuclei of twin cones, long and wide nuclei of long single cones, spherical large nuclei of short cones, and small dense nuclei of rods. Horizontal, amacrine, bipolar and ganglion neurones are responsible for connections and integration between photoreceptor cells and afferent neurones. The pigmented epithelium comprises a single layer of cylindrical cells each...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Retina; Morphology; Red light.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000100011

Variações temporais e espaciais na composição e estrutura da comunidade de peixes jovens da Baía de Sepetiba, Rio de Janeiro
Provedor de dados: 104
Autores: Pessanha,André Luiz Machado; Araújo,Francisco Gerson; Azevedo,Márcia Cristina Costa de; Gomes,Iracema David.
A year-long beach seine survey at the continental margin of Sepetiba Bay, Rio de Janeiro State, Brazil, catching mainly young-of-the-year and juvenile fishes was carried out from July 1983 to June 1984, in order to describe the community structure and their spatial and seasonal variations. Fifty-five monthly samplied carried out in five sites in the marginal surf zone waters yielded 11,463 fishes in 82 species, 59 genera and 31 families. Gerreidae, Engraulidi-dae, Atherinidae and Ariidae families amounted 87.01% of the total catch in number, and 81% in weight. Cerres aprion Cuvier, 1829, Anchoa januaria (Steindachner, 1879), Anchoviella lepidentostole (Fowler, 1911), Atherinella brasiliensis (Quoy &amp;amp; Gaimard, 1824) and Neluma barba (Lacépède, 1803)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sepetiba Bay; Ichthyofauna; Fish; Bioecology.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100022

Atividade alimentar de espécies de peixe do rio Tibagi, relacionada com o desenvolvimento de gordura e das gônadas
Provedor de dados: 104
Autores: Bennemann,Sirlei Terezinha; Orsi,Mário Luís; Shibatta,Oscar Akio.
The fish assemblage in a stretch of Tibagi river was studied during the period of one year, throught monthly sampling. It was observed that four fish species (Schizodon intermedius Garavello &amp;amp; Britski, 1990, Acestrorhynchus lacustris Reinhardt, 1874, Pimelodus maculatus Lacépède, 1803 and Steindachnerina insculpta Fernandez-Yepez, 1948) were very frequent and they represent all the main trophic groups. In order to characterize feeding activity, fat storage and reproduction the means degree of repletion, fat and maturation, obtained for each species in each month were compared among the four fish species. Steindachnerina insculpta, a detritivovous species was the one with the highest feeding activity while A. lacustris, a piscivorous fish, showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Feeding activity; Gonadal development; Tibagi river; Paraná.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200018

Cooking process evaluation on mercury content in fish
Provedor de dados: 36
Autores: Farias,Luciana Aparecida; Fávaro,Déborah Inês; Santos,José Osman; Vasconsellos,Marina Beatriz; Pessôa,Artemiza; Aguiar,Jaime Paiva Lopes; Yuyama,Lucia.
This study evaluated different cooking processes (roasted, cooked and fried) on total mercury (Hg) content in fish species most consumed by Manaus residents and surrounding communities, Amazon region. The results obtained for total Hg in natura and after the three types of preparation (roasted, cooked and fried) for 12 fish species showed a significant Hg concentration variation. In the present study the cooked and frying processes resulted in higher Hg losses for Pacu, Pescada, Jaraqui, Curimatã, Surubin and Aruanã fish species, most of them presenting detritivorous and carnivorous feeding habits. The higher Hg losses in the roasting process occurred for Sardinha, Aracu, Tucunaré, Pirapitinga, Branquinha and Tambaqui fish species, most of them being...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mercury; Cooking processes; Fish; Nutrition; Micronutrients.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672010000400015

A description of mercury in fishes from the Madeira River Basin, Amazon, Brazil
Provedor de dados: 36
Autores: Bastos,Wanderley Rodrigues; Rebelo,Mauro de Freitas; Fonseca,Márlon de Freitas; Almeida,Ronaldo de; Malm,Olaf.
Over the last 20 years several projects carried on the Madeira River basin in the Amazon produced a great amount data on total Hg concentration in different fish species. In this paper we discuss temporal trends in Hg contamination and its relation to body weight in some of those fishes, showing that even within similar groups, such as carnivorous and non-migratory fish, the interspecies variability in Hg accumulation is considerable.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Mercury; Biomagnification; Madeira River; Amazon.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000300006

Length-weight relationship in ten fish species from the Nhamundá River, the Amazon Basin, Brazil
Provedor de dados: 36
Autores: FREITAS¹*,Tiago Magalhães da Silva; SOUZA¹,Joao Batista de Souza e; PRUDENTE²,Bruno da Silveira; MONTAG²,Luciano Fogaça de Assis.
ABSTRACT Studies on the length-weight relationship (LWR) of fishes are an important tool to describe several biological aspects of the species. Consequently, these studies are relevant due the necessity of comprehension about fish life cycle. Thus, this study aimed to establish the length-weight relationship of the ten most common fish in the Lower Nhamundá River, left tributary of the Amazon River. The capture of fish was conducted in January 2008 using gill nets. A total of 807 individuals, ten species and three Orders (Characiformes, Siluriformes and Clupeiformes) were analyzed. The parameter b varied from 2.680 to 3.698. The LWR were shown for the first time for two species: Anostomoides laticeps and Ageneiosus polystictus. Finally, this research...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Growth pattern; Alometry; Fish; Amazonia.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000100075

The seasonal diet of Aequidens tetramerus (Cichlidae) in a small forest stream in the Machado River basin, Rondônia, Brazil
Provedor de dados: 36
Autores: COSTA,Igor David da; SOARES,Maiza Oliveira.
Trophic relationships in fish communities are affected by the availability of resources, which in turn is affected by spatial and temporal variations throughout the year. The aims of this study were to characterize the diet of A. tetramerus in a streamlet in the north of Brazil and compare its composition in different hydrological seasons (wet and dry seasons). Collections were performed every two months from October 2011 to September 2012 with the aid of seine nets, hand net and fishing traps in the streamlet located in the Machado River drainage basin in the Rondônia state. Most of the specimens collected were quite small (&lt; 40 mm) and had empty stomachs. Our results showed that A. tetramerus feeds on a wide variety of items of plant origin, such as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Perciformes; Amazon; Feeding habits; Ornamental fish.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672015000400365

Ichthyometry and electrical bioimpedance analysis to estimate the body composition of tambatinga
Provedor de dados: 36
Autores: Andrade,Francisco Teixeira; Abreu,Márvio Lobão Teixeira de; Lopes,João Batista; Figueiredo,Agustinho Valente de; Araripe,Maria de Nazaré Bona Alencar; Ferreira,Antônio Hosmylton Carvalho.
Body composition analysis is relevant to characterize the nutritional requirements and finishing phase of fish. The aim of this study was to investigate the relationship between ichthyometric (weight, total and standard length, density and yields), bromatological (fat, protein, ash and water content) and bioelectrical-impedance-analysis (BIA) (resistance, reactance, phase angle and composition indexes) variables in the hybrid tambatinga (Colossoma macropomum × Piaractus brachypomus). In a non-fertilized vivarium, 520 juveniles were housed and fed commercial rations. Then, 136 days after hatching (DAH), 15 fish with an average weight of 37.69 g and average total length of 12.96 cm were randomly chosen, anesthetized (eugenol) and subjected to the first of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bromatology; Fish; Non-lethal assessment; Reactance; Resistance.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000200014

Effect of body size heterogeneity on the aggressive behavior of larvae of matrinxã, Brycon amazonicus (Characiformes, Bryconidae)
Provedor de dados: 36
Autores: CARVALHO,Thaís Billalba; SOUZA,Ellen Cristina Monteiro de; PINHEIRO-DA-SILVA,Jaquelinne; VILLACORTA-CORREA,Marle Angélica.
ABSTRACT Brycon amazonicus is a native Amazonian fish that is important for aquaculture in South America. Larval mortality is high in this species in intensive breeding systems due to aggressiveness among larvae. The present study investigated experimentally the effects of body size heterogeneity on the aggressive behavior and survival of B. amazonicus during the early stages of larval development. Two treatments (larvae groups with homogeneous and heterogeneous body size) were evaluated throughout early larval stages tested at six time points: 12, 24, 36, 48, 60 and 72 hours after hatching (HAH). Two experiments quantified, respectively, aggressive interactions and mortality rates among larvae at each time point. The frequency of aggressive interactions...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aggressiveness; Fish; Larviculture; Mortality.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000400304

Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae)
Provedor de dados: 36
Autores: ARAÚJO-DAIRIKI,Thyssia Bomfim; CHAVES,Francisco Célio Maia; DAIRIKI,Jony Koji.
ABSTRACT Sacha inchi (Plukenetia volubilis) is a plant native to the Peruvian Amazon with seeds that contain 24 to 29% protein, and levels of vitamin A and E and omega 3 polyunsaturated fatty acids that are suitable for fish nutrition. Thus, this study aimed to evaluate the use of sacha inchi seeds as an ingredient in the diets of tambaqui (Colossoma macropomum) and matrinxã (Brycon amazonicus). The acceptance and effect of three levels of sacha inchi seed meal (0, 15 and 30%) in fish feed was evaluated in a randomized experiment, testing groups of 12 juvenile tambaquis (29.8 ± 1.0 g, 11.0 ± 1.4 cm) and groups of eight juvenile matrinxãs (34.8 ± 1.3 g, 13.7 ± 1.0 cm). Growth performance and body composition of the fish were determined at the end of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative diet; Growth performance; Nutrition; Fish.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100032

Characterization of the commercial fish production landed at Manaus, Amazonas State, Brazil
Provedor de dados: 36
Autores: BATISTA,Vandick da Silva; PETRERE JÚNIOR,Miguel.
The present work aims to update a series of information about the regional fishing production, by presenting and characterizing the contribution of the different sub-systems of the Amazon basin to the catch landed at the main fishing market of Manaus, Brazil, from 1994 to 1996. Collectors specifically hired for this function registered key information on the fisheries. Thirty nine types or groups of fish were found in the fishing production landed. Jaraqui (Semaprochilodus spp.), curimatã (Prochilodus nigricans), pacu (Myleinae), matrinchã (Brycon cephalus), sardine (Triportheus spp.), aracu (Anostomidae) and tambaqui (Colossoma macropomum) were the most important items during three consecutive years. In 1994 these items summed up 91.6% of the total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Fisheries; Amazon; Production.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000100053

Rapid assessment of the ichthyofauna of the southern Guiana Shield tributaries of the Amazonas River in Pará, Brazil
Provedor de dados: 36
Autores: DUTRA,Guilherme M.; FREITAS,Tiago M. S.; PRUDENTE,Bruno S.; SALVADOR,Gilberto N.; LEÃO,Manuela D. V.; PEIXOTO,Luiz A. W.; MENDONÇA,Marina B.; NETTO-FERREIRA,André L.; SILVA,Fabio R.; MONTAG,Luciano F. A.; WOSIACKI,Wolmar B.
ABSTRACT The Northern Pará Drainage System encompasses the left-bank tributaries of the Amazonas River in the southern Guiana Shield region of Pará state, Brazil. Five of the region’s state protected areas are considered strategic for the conservation of its biodiversity. In the present study, we assessed the ichthyofauna of the five state protected areas of the Northern Pará Drainage System. Seven expeditions were conducted between January 2008 and January 2009, which surveyed stretches of the Cuminá, Cuminapanema, Curuá, Jari, Mapuera, Nhamundá, and Paru rivers. These surveys yielded 286 species belonging to 38 families and eight orders, including seven new records of fish species for Brazil, six of which are also new records for the Amazon basin. Our...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Northern Pará Drainage System; Protected areas; Amazon; Inventory; Fish.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100024

FEEDING HABITS OF Paralonchurus brasiliensis (PERCIFORMES: SCIAENIDAE) FROM SOUTH OF BRAZIL
Provedor de dados: 37
Autores: SEDREZ,Mário Cesar; BARRILLI,Germano Henrique Costa; FRAGOSO-MOURA,Evelise Nunes; BARREIROS,João Pedro; BRANCO,Joaquim Olinto; VERANI,José Roberto.
ABSTRACT Shrimp trawling directly impacts target species and non-target species, altering micro-habitats and marine trophic webs. Thus, the objective of the present research was to analyze the feeding habits of Paralonchurus brasiliensis as a tool to evaluate the impact of trawling on the food chains in marine environments, in the South Atlantic of Brazil. One thousand and nineteen stomachs of P. brasiliensis were dissected after being captured as bycatch of shrimp Xiphopenaeus kroyeri, in Penha, on the north central coast of Santa Catarina, Brazil. The number of stomachs was enough to describe the feeding habits of P. brasiliensis, characterizing it as a carnivorous species and predominantly invertivorous. They also revealed that this species has a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Accompanying fauna; Bottom trawling; Conservation; Fish; Fisheries.
Ano: 2021
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2021000300335

Mananoligossacarídeo em dietas para juvenis de tilápias do Nilo - doi: 10.4025/actascianimsci.v32i2.7724
Provedor de dados: 2
Autores: Schwarz, Kátia Kalko; FAFIPAR/UEM; Furuya, Wilson Massamitu; Universidade Estadual de Maringá; Natali, Maria Raquel Marçal; Universidade Estadual de Maringá; Michelato, Mariana; Programa de Pós Graduação em Zootecnia/UEM; Gualdezi, Mirian Cristina; Faculdade Estadual de Filosofia Ciências e Letras de Paranaguá.
O presente estudo foi realizado com o objetivo de avaliar a inclusão de mananoligossacarídeo (MOS) em dietas para juvenis de tilápias do Nilo. Foram utilizados 224 peixes (25 g &amp;plusmn;1,0 g), em um período de 53 dias e os peixes foram distribuídos em um delineamento em blocos ao acaso, sendo considerado como bloco cada tanque de 1.000 L com 16 gaiolas de 0,12 m3 cada. Foi utilizada dieta-controle com 28,5% de proteína bruta e 2.855 kcal de energia digestível kg-1 e adicionado MOS nas proporções de 0, 1, 2 e 3%. Não foi observado efeito (p &gt; 0,05) dos níveis de inclusão de MOS sobre o consumo, índice hepatossomático, sobrevivência, umidade, cinzas corporal, coeficiente de digestibilidade aparente da máteria seca, energia bruta, proteína bruta,...
Tipo: Experimento científico, pesquisa de campo; análise laboratorial
Palavras-chave: Ciências Agrárias Desempenho; Mucosa intestinal; Peixe; Prebiótico 5.06.03.00-0 Aquicultura Performance; Intestinal morphology; Fish; Prebiotic.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7724

Diversidade genética de três estoques de piapara (Leporinus elongatus), utilizando RAPD - DOI: 10.4025/actascianimsci.v30i2.4710
Provedor de dados: 2
Autores: Gomes, Patricia Cristina; UEM; Ribeiro, Ricardo Pereira; UEM; Barrero, Nelson Lopera; UEM; Povh, Jayme Aparecido; UEM; Vargas, Lauro; UEM; Sirol, Rodolfo Nardez; Duke Energy International Geração Paranapanema.
Recentemente a produção aquícola brasileira tem apresentado grande progresso. Dentre as espécies nativas cultivadas no Brasil, a piapara (Leporinus elongatus) tem sido amplamente preconizada. Com objetivo de avaliar os programas de repovoamento, foram analisadas a variabilidade e a divergência genética de três estoques de piapara com a técnica de RAPD (Random Amplified Polymorphic). O primeiro estoque pertence à Estação de Aquicultura e Hidrologia da Duke Energy International (A); o segundo, à piscicultura de Rolândia (B) e o terceiro, ao Programa de Repovoamento dos Rios do Paraná (C). Os dez primers para RAPD utilizados produziram 105 fragmentos polimórficos, conferindo um polimorfismo de 98,1% para os três estoques avaliados. A porcentagem de locos...
Palavras-chave: 5.05.04.00-2    Reprodução Animal divergência genética; Locos polimórficos; Peixe; RAPD; Reprodutores; Variabilidade genética. genetic divergence; Polymorphic loci; Fish; RAPD; Reproducers; Genetic variability.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4710

Valor nutricional do farelo de algodão para a tilápia do nilo (Oreochromis niloticus) - DOI: 10.4025/actascianimsci.v31i1.505
Provedor de dados: 2
Autores: Kleemann, Geisa Karine; UNESP; Barros, Margarida Maria; UNESP; Pezzato, Luiz Edivaldo; UNESP.
Determinou-se a composição química dos farelos de algodão 28,0; 38,0 e 46,0% de proteína bruta e os coeficientes de digestibilidade aparente (CDA) pela tilápia do Nilo da matéria seca, proteína, aminoácidos, energia, lipídeo e minerais. Os CDA foram determinados, usando-se dieta-referência purificada, contendo 0,1% do indicador óxido de crômio-III. As rações-teste continham 60,0% da dieta-referência e 40,0% dos alimentos em estudo. Os resultados mostraram diferença (p &lt; 0,05) entre os CDA dos nutrientes dos farelos de algodão. Os CDA dos três farelos de algodão foram: matéria seca = 53,45 a 54,32%; proteína = 71,56 a 74,81%; energia = 53,80 a 58,60%; lipídeo = 85,37 a 89,11%; fósforo = 33,75 a 34,50%; cálcio = 41,21 a 43,75%; ferro = 62,02 a 79,85%;...
Palavras-chave: 5 5.04.00.00-2 Zootecnia aminoácidos; Digestibilidade; Energia; Peixe; Minerais; Proteína digestível 5 5.04.00.00-2    Zootecnia amino acids; Digestibility; Energy; Fish; Minerals; Protein availability.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/505

Efeitos tóxicos de surfactantes fitossanitários para o peixe mato grosso (Hyphessobrycon eques) - doi: 10.4025/actascibiolsci.v33i2.6252
Provedor de dados: 3
Autores: Carraschi, Silvia Patrícia; Faculdade de Ciências Agrárias e Veterinárias da UNESp de Jaboticabal; Cubo, Patrícia; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal; Schiavetti, Bárbara Lopes; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal; Shiogiri, Natália Sayuri; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal; Cruz, Claudinei da; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal; Pitelli, Robinson Antonio; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal.
Os surfactantes são moléculas anfipáticas que reduzem a tensão superficial da água e fazem parte dos componentes inertes das formulações de produtos fitossanitários. Assim, os objetivos deste trabalho foram: estimar a concentração letal (CL(I)(50;96h)); classificar e  avaliar a qualidade da água durante os testes de toxicidade aguda dos surfactantes: Agral&amp;reg;, Aterbane&amp;reg; BR, Ag-Bem&amp;reg;, Energic&amp;reg;, Fixade&amp;reg; e Gotafix&amp;reg; para o peixe mato grosso (Hyphessobrycon eques); e os sinais de intoxicação nos animais. Para tanto, os peixes foram aclimatados por dez dias em sala de bioensaio. Os animais foram expostos aos surfactantes em DIC com três repetições. A CL(I)(50;96h) do surfactante Agral&amp;reg; foi 3,29 mg L-1; do...
Palavras-chave: 2.05.03.00-8 Ecotoxicologia; Peixe; Qualidade de água; Comportamento Ecologia Aplicada Ecotoxicology; Fish; Water quality; Behavior.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6252

Haematological assessment of four amazonian ornamental armoured catfish (Teleostei, Loricariidae)
Provedor de dados: 3
Autores: Neves, Mikaelle de Souza; Barbas, Luis André Luz; Couto, Márcia Valeria Silva do; Lopes, Josiane Nazaré Silva; Tavares-Dias, Marcos; Fujimoto, Rodrigo Yudi.
The aim of this study was to characterize the haematological profile of four Amazonian ornamental freshwater armoured catfish: acari-bola (Peckoltia oligospila - L06), acari-pleco (Cochliodon sp. - L145), acari-canoa (Lasiancistrus saetiger - L323) and acari-assacu (Pseudocanthicus spinosus - L160). The highest blood glucose levels (72.47 ± 28.7 mg dL-1) and erythrocyte counts (0.51 ± 0.2 x 106 cel. μL-1) were recorded for acari-canoa. The acari-bola and acari-pleco presented similar concentrations of total plasma protein (TPP) (7.96 ± 1.8 and 7.93 ± 1.8 g dL-1, respectively) against lower TPP concentrations observed in acari-canoa (4.87 ± 1.5 g dL-1) and acari-assacu (6.55 ± 1.5 g dL-1). The acari-assacu had lower total haemoglobin concentration (5.88 ±...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquicultura; Hematológia de peixes blood profile; Leukocytes; Fish; Pleco. aquicultura.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39554

Austrodiplostomum compactum (Lutz, 1928) (Digenea, Diplostomidae) in the eyes of fishes from Paraná river, Brazil - doi: 10.4025/actascibiolsci.v34i2.9337
Provedor de dados: 3
Autores: Santos, Rosemeire de Souza; Universidade do Oeste Paulista  - UNOESTE; Marchiori, Natalia; Universidade Federal de Santa Catarina - UFSC; Santarem, Vamilton Alvares; Universidade do Oeste Paulista - UNOESTE; Takahashi, Haroldo Kazuyuki; Universidade do Oeste Paulista - UNOESTE; Mourino, José Luis Pedreira; Universidade Federal de Santa Catarina - UFSC; Martins, Maurício Laterça; Universidade Federal de Santa Catarina - UFSC.
Parasitological indexes of Austrodiplostomum compactum (Digenea, Diplostomidae) in fishes from the Paraná River, Presidente Epitácio region, state of São Paulo, Brazil, and their relationship with climate and water quality are evaluated. Fifty-one specimens of Plagioscion squamosissimus, 39 Geophagus surinamensis, 27 Hoplias malabaricus and 23 Cichla sp. were collected between June 2007 and June 2008. Water quality and rainfall indexes were measured monthly. P. squamosissimus had the highest parasite rate, with 98% total prevalence, intensity of infection varying between 1 and 255 and parasite mean abundance totaling 40.5 ± 9.9. H. malabaricus had the next parasite rate, with 66.6% total prevalence, parasite intensity between 2 and 184 and mean abundance...
Palavras-chave: Fish; Plagioscion squamosissimus; Geophagus surinamensis; Hoplias malabaricus; Cichla; Diplostomum; Infection.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9337

Genetic variability and evidence of founder effect in Hemiodus orthonops (Characiformes: Hemiodontidae) from the upper Paraná River basin, Brazil
Provedor de dados: 3
Autores: Marques, Liégie Alher; Renesto, Erasmo.
 Hemiodus orthonops is a small fish of the Hemiodontidae family, order Characiformes, with a maximum of 25 cm standard length. Until recently, H. orthonops was an endemic species from the Paraná-Paraguay basin and it was absent from the upper Paraná River basin. Since 2008, it has started to be collected in the upper Paraná River, representing up to 10% of catches. Two population samples of H. orthonops from two localities of the upper Parana River basin (Porto Camargo and Porto Figueira) were analyzed using the allozymes electrophoresis technique. Twenty-one enzymatic loci were detected. The population sample from Porto Camargo displayed a genetic variability (He = 0.1061) higher than that from Porto Figueira (He = 0.0580) and homozygote excess in both of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allozymes; Fish; Genetic distance; Heterozygosity; Protein polymorphism. genética de populações.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31793

Morpho-toxicology of chlorpyrifos to prolactin cells of a freshwater catfish, Heteropneustes fossilis - doi: 10.4025/actascibiolsci.v34i4.9134
Provedor de dados: 3
Autores: Srivastav, Ajai Kumar; DDU Gorakhpur University; Srivastava, Sanjay Kumar; DDU Gorakhpur University; Tripathi, Sarojni; DDU Gorakhpur University; Mishra, Diwakar; Srivastav, Sunil Kumar; DDU Gorakhpur University.
In the present study, an organophosphorus compound Coroban (active ingredient chlorpyrifos – E.C. 20%) was used. In short-term exposure the fish were subjected to 0.8 of 96h LC50 value of chlorpyrifos (1.76 mg L-1) for 96h. In long-term exposure the experiment was performed for 28 days by using 0.2 of 96h LC50 value of chlorpyrifos (0.44 mg L-1). Fish were killed on each time intervals from control and experimental (chlorpyrifos) groups after 24, 48, 72, and 96h in short-term exposure and after 7, 14, 21, and 28 days in long-term experiment. Blood samples were collected and sera were analyzed for calcium. Pituitary glands were fixed for histological studies and stained with Herlant tetrachrome and Heidenhain’s azan techniques. Short-term exposure of...
Palavras-chave: Prolactin cells; Serum calcium; Organophosphate; Chlorpyrifos; Fish.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9134

Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
Provedor de dados: 3
Autores: Felizardo, Viviane de Oliveira; Andrade, Eliane Aparecida de; Melo, Carlos Cicinato Vieira; Murgas, Luis David Solis; Freitas, Rilke Tadeu Fonseca de; Andrade, Estefânia de Souza.
This study determined the age and its correlation with biometric variables and reproductive indices of piapara Leporinus obtusidens caught at the Funil Reservoir. We caught 133 specimens between September 2006 and August 2007. Weight, total length, standard length, depth, height, head length and radius of the scales were measured. The sex was determined by macroscopic examination of gonads. The age of each fish was determined by analyzing the growth rings on the scales. Seasonal differences in biometric variables were tested using the NK test at 5%. The correlation of age and radius of the scales with the biometric variables and reproductive indices were analyzed using the SAEG software. Fish individuals ranging from 3 to 14 years of age were caught. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.00.00.00-6 biometrics; Fish; Growth; Piapara; Reproduction Ecologia.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/28003

Acute toxicity of azadirachtin to a teleost, Heteropneustes fossilis - doi: 10.4025/actascibiolsci.v34i2.9455
Provedor de dados: 3
Autores: Kumar, Abhishek; DDU Gorakhpur University - India; Prasad, ManiRam; DDU Gorakhpur University - India; Mishra, Diwakar; DDU Gorakhpur University - India; Srivastav, Sunil Kumar; DDU Gorakhpur University - India; Srivastav, Ajai Kumar; DDU Gorakhpur University - India.
The acute static renewal test of a botanical pesticide - azadirachtin for the freshwater catfish, Heteropneustes fossilis has been performed to determine the LC50 values at different exposure period. The LC50 values at various exposure periods are 173.06 mg L-1 for 24h; 80.69 mg L-1 for 48h; 58.57 mg L-1 for 72h and 52.35 mg L-1 for 96h. The upper confidence limits were 196.87, 86.91, 79.20 and 70.04 mg L-1 for 24, 48, 72 and 96 h and lower confidence limits were 154.01, 74.24, 37.33 and 33.83 mg L-1, respectively. These results indicate that azadirachtin exposure to the fish caused toxic effects.
Palavras-chave: Neem; Azadirachtin; LC50; Heteropneustes fossilis; Fish Animal Morphology and Physiology; Toxicology Neem  azadirachtin; LC50; Heteropneustes fossilis; Fish.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9455

Hematology, micronuclei and nuclear abnormalities in fishes from São Francisco river, Minas Gerais state, Brazil - doi: 10.4025/actascibiolsci.v33i1.7117
Provedor de dados: 3
Autores: Seriani, Robson; Instituto de Pesca; Ranzani-Paiva, Maria José Tavares; Instituto de Pesca; Silva-Souza, Ângela Teresa; UEL; Napoleão, Silvia Roseli; Instituto de Pesca.
This study aimed to determine the variables leukocytary, erythrocytary, frequency of micronuclei and nuclear abnormalities in peripheral erythrocytes of Prochilodus argenteus, Pimelodus maculates and Myleus micans from São Francisco river basin, Minas Gerais State, during the summer and winter. Thrombocytes, hematocrit and leukocyte of  P.argenteus series, was influenced by climatic conditions. In P. maculatus, not were significant differences for all leukocytes and thrombocytes. In M. micans, values are unprecedented in the literature, with MCV and absolute number of leukocytes found superior to other species of the family Characidae. The frequency of micronuclei and nuclear abnormalities in erythrocytes, the three species not showed seasonal differences...
Tipo: Estudo ecofisiológico
Palavras-chave: Hematological; Fish; Micronuclei; Nuclear abnormalities; São Francisco Recursos Pesqueiros Hematological; Fish; Micronuclei; Nuclear abnormalities; São Francisco.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7117

Observations on the Infection by Kudoa sp. (Myxozoa, Multivalvulida) in fishes caught off Rio Grande, Rio Grande do Sul State, Brazil
Provedor de dados: 3
Autores: Eiras, Jorge Costa; Pereira Júnior, Joaber; Saraiva, Aurélia; Cruz, Cristina Faria.
It is reported the parasitization of Kudoa sp. (Myxozoa, Multivalvulida) within the somatic muscles of the fish Odontesthes bonariensis (Valenciennes, 1835), Micropogonias furnieri (Desmarest, 1823) and Mugil liza Valenciennes, 1836, captured off Rio Grande, Rio Grande do Sul State, Brazil. Other species of fish caught at the same place were not infected. The parasites formed elongated plasmodia inside the muscle fibres. Myoliquefaction or any host tissue reaction were not observed. The morphological and morphometric features of the spores are described, the parasites are compared with other Kudoa species, and the importance of the infection is discussed. 
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biologia; Zoologia cnidaria; Myxosporea; Fish; Muscles; Myoliquefaction Parasitologia.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/30492

Temporal distribution of ichthyoplankton in the Forquilha river, upper Uruguay river – Brazil: Relationship with environmental factors  - doi: 10.4025/actascibiolsci.v36i1.17993
Provedor de dados: 3
Autores: Lopes, Carolina Antonieta; Universidade Federal de Santa Catarina; Garcia, Valquíria; Universidade Federal de Santa Catarina; Reynalte-Tataje, David Augusto; Universidade Federal de Santa Catarina; Zaniboni-Filho, Evoy; Universidade Federal de Santa Catarina; Nuñer, Alex Pires de Oliveira; Universidade Federal de Santa Catarina.
  This study aimed to evaluate the temporal distribution of fish eggs and larvae in the Forquilha river (upper Uruguay river/Brazil) and its relationship with environmental variables. Ichthyoplankton and abiotic factors were sampled from September 2006 to August 2007. At the laboratory, samples were sorted and larvae were identified to the lowest possible taxonomic level. For data analysis we applied One-way Anova, Tukey’s test, Pearson correlation and PCA. In this study 200 eggs and 308 larvae were collected, showing differences in the temporal distribution and influence of abiotic factors. Larvae were identified in all stages of development, being distributed in three order and eight families. These results point that the lower portion of the Forquilha...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs and larvae; Fish; Reproduction; Abiotic variables.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/17993

Ictiofauna do ribeirão Diamante, Estação Ecológica do Caiuá (Diamante do Norte, Estado do Paraná): monitoramento de sua composição e estrutura - DOI: 10.4025/actascibiolsci.v31i2.3907
Provedor de dados: 3
Autores: Morales, Bruno Ferezim; UEM; Cionek, Vivian de Mello; UEM; Benedito, Evanilde; UEM.
O objetivo do presente trabalho foi investigar as assembleias de peixes do ribeirão Diamante (Estação Ecológica do Caiuá), visando avaliar sua composição e estrutura, ao longo de dois períodos distintos: três e 11 anos após sua criação. Para tanto, foram comparados os resultados obtidos nas amostragens realizadas trimestralmente no presente estudo, entre novembro de 2005 e agosto de 2006, com os resultados apresentados por Abilhoa e Bastos (2005) para o período de agosto de 1997 a dezembro de 1998. Neste estudo, os aparelhos de pesca foram constituídos de redes de espera simples com malhas de 2,4 a 16 cm (entre nós opostos), expostas por 24h, com revistas a cada 8h. Para a caracterização da ictiofauna, foram analisados padrões de riqueza específica,...
Tipo: Diversidade
Palavras-chave: 2.00.00.00-6 Ciências Biológicas conservação; Peixes; Introdução de espécies; Impactos ambientais Ciências Biológicas conservation; Fish; Species introduction; Environmental damage.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3907

Influence of environmental integrity on the reproductive biology of Astyanax altiparanae Garutti &amp; Britski, 2000 in the Ivinhema river basin
Provedor de dados: 3
Autores: Viana, Lucilene Finoto; Universidade Estadual de Mato Grosso do Sul; Tondato, Karina Keyla; Universidade Federal do Rio Grande do Sul; Súarez, Yzel Rondon; Universidade Estadual de Mato Grosso do Sul; Lima-Junior, Sidnei Eduardo; Universidade Estadual de Mato Grosso do Sul.
In this study, it was examined the reproductive biology of Astyanax. altiparanae, in streams with different levels of environmental disturbance in the Ivinhema river basin (Mato Grosso do Sul State, Brazil). Samplings were conducted between July 2001 and November 2011, at 101 sites, using sieves, seining nets, gill nets and electrofishing. Streams were classified into three levels of environmental integrity. We analyzed 735 specimens, 410 females and 325 males. Females predominated in impacted streams and both sexes presented nearly the same pattern of length distribution in the three levels of environmental integrity. Females reached gonadal maturity with greater lengths (L50 = 55.67mm) in altered and impacted streams and had higher reproductive activity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental conditions; Fish; Reproductive ecology Zoologia; Ecologia 2.04.06.00-2; 2.05.03.00-8 Zoologia; Ecologia.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21052

Condição reprodutiva da betara preta, Menticirrhus americanus (Teleostei, Sciaenidae), na pesca realizada no litoral norte de Santa Catarina, Brasil - DOI: 10.4025/actascibiolsci.v30i4.1230
Provedor de dados: 3
Autores: Muniz, Elneison da Rosa; UFPR; Chaves, Paulo de Tarso; UFPR.
No litoral brasileiro, a legislação costuma regular as práticas pesqueiras segundo o ciclo de vida das espécies-alvo, mas o fato deste não ser coincidente entre as espécies dominantes nas capturas dificulta o manejo em pescarias multiespecíficas. No litoral de Santa Catarina, o defeso aplica-se apenas à pesca de arrasto, e para tal considera o período reprodutivo do camarão sete-barbas, Xyphopenaeus kroyeri. O presente trabalho investiga a incidência da atividade pesqueira sobre indivíduos em reprodução da betara preta, Menticirrhus americanus, espécie comercialmente apreciada e frequente nas pescarias. As amostragens ocorreram em 2006 e 2007, em desembarques do município de Itapoá, norte do Estado (26°00’S; 48°36’W). Calcularam-se os valores de proporção...
Tipo: Atividade reprodutiva
Palavras-chave: 5.06.01.00-8  Recursos Pesqueiros Marinhos. Reprodução; Peixes; Defeso; Pesca Zoologia breeding; Fish; Management; Fishing.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1230

Histopathological evaluation of seven Amazon species of freshwater ornamental armored catfish
Provedor de dados: 3
Autores: Fujimoto, Rodrigo Yudi; Embrapa Tabuleiros Costeiros; Neves, Mikaelle de Souza; Universidade Federal do Pará; Santos, Rudã Fernandes Brandão; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Cruz, Claudinei da; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Diniz, Daniel Guerreiro; Universidade Federal do Pará; Eiras, Jorge Costa; Universidade do Porto.
Fish commonly known as acaris or plecos are freshwater armored catfish economically important as a food resource and as ornamental fish. Most of these species are captured in the Amazon region. However, despite its economic importance, there is a lack of knowledge about their biological aspects. Thus, this study aimed to characterize and evaluate the histopathological aspects of important organs as gills, liver, integument and kidney of seven species of armored freshwater ornamental catfish fromGuamáRiver,Pará State,Brazil. All organs showed typical characteristics of organs of other teleosts. In some species, gills and liver showed slight histopathological changes: telangiectasis, edema and morphological changes related to the presence of parasites...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Environmental quality; Acaris; Histology Histologia Animal.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/22423

New species of Tereancistrum (Dactylogyridae) monogenean parasites of Schizodon borellii (Characiformes, Anostomidae) from Brazil, and emended diagnosis for T. parvus
Provedor de dados: 3
Autores: Karling, Letícia Cucolo; Universidade Estadual de Maringá; Lopes, Luiza Paula Conceição; Universidade Estadual de Maringá; Takemoto, Ricardo Massato; Universidade Estadual de Maringá; Pavanelli, Gilberto Cezar; Universidade Estadual de Maringá / Universidade Federal do Paraná.
Tereancistrum paranaensis sp. n. is described from the gills of Schizodon borellii (Boulenger 1900) (Characiformes) from the upper Paraná river floodplain, Brazil. The new species is mainly characterized by morphology of copulatory complex, dorsal anchor with shaft recurved and pointed and arc-shaped dorsal bar. Tereancistrum parvus was described based on only one specimen and some characteristics were not observed. Now we provide an emendation to the diagnosis of this species. 
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dactylogyridae; Ectoparasite; Fish; Piava; Floodplain; Brazil.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/20216

Influence of environmental integrity on the feeding biology of Astyanax altiparanae (Garutti &amp; Britski, 2000) in the Ivinhema river basin - doi: 10.4025/actascibiolsci.v35i4.19497
Provedor de dados: 3
Autores: Viana, Lucilene Finoto; Suarez, Yzel Rondon; Lima-Junior, Sidnei Eduardo.
This study aimed at analyzing the influence of different levels of environmental integrity of streams of the Ivinhema river basin (Mato Grosso do Sul State, Brazil) on the diet of A. altiparanae. Samplings were performed from July 2001 to November 2011 at 101 sites, using sieves, seining and gill nets, and electrofishing. Streams were classified into three levels of environmental integrity. We analyzed 664 stomachs with the methods of frequency of occurrence and volumetric analysis index, combined in the Importance Index (AI). The species was omnivorous, with predominance of allochthonous resources. At the least impacted sites, the most representative resource was allochthonous plant material; and in the altered sites in the rainy period the most consumed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.05.03.00-8 Ecologia Aplicada stream; Fish; Gut content; Food habits.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/19497

A new species of Jainus (Monogenea), gill parasite of Schizodon borellii (Characiformes, Anostomidae) from the upper Paraná river floodplain, Brazil - doi: 10.4025/actascibiolsci.v33i2.6168
Provedor de dados: 3
Autores: Karling, Letícia Cucolo; Universidade Estadual de Maringá; Bellay, Sybelle; Universidade Estadual de Maringá; Takemoto, Ricardo Massato; Universidade Estadual de Maringá; Pavanelli, Gilberto Cezar; Universidade Estadual de Maringá.
Jainus piava n. sp. is described from the gills of Schizodon borellii (Boulenger, 1900) (Characiform), commonly named as piava from the upper Paraná River floodplain, Brazil. The new species differs from the other members of Jainus in the following features: ventral bar thin broadly V-shaped and male copulatory organ (MCO) a coil of about 1.5 rings. Jainus piava n. sp. is similar to species of Jainus by having a ventral anchor base with flattened superficial root and elongate rodlike deep root.
Tipo: Descrição de espécie
Palavras-chave: Parasitologia; Monogenea; Taxonomia Dactylogyridae; Ectoparasite; Fish; Piava parasitologia Dactylogyridae; Ectoparasite; Fish; Piava.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6168

Concentration of anesthetic for long-term exposure and the effects of inter-suture distance in the goldfish Carassius auratus - DOI: 10.4025/actascibiolsci.v31i2.802
Provedor de dados: 3
Autores: Yasui, Anne Marie; Clínica VetCenter; Yasui, George Shigueki; Laboratory of Aquaculture Genetics and Genomics; Shimoda, Eduardo; UCAM; Ribeiro-Filho, Oswaldo Pinto; UFV.
This study aimed to determine the minimum concentration of 2-phenoxyethanol for long-term exposure and evaluate the effect of inter-suture distance on wound healing in the goldfish Carassius auratus. Twenty adult goldfish (standard length = 12.4 ± 1.1 cm; weight = 58.7 ± 17.2 g) were anesthetized in 2-phenoxiethanol at 1.2‰ and placed in an anesthesia delivery system at the following concentrations of 2-phenoxiethanol: 0.0 (control); 0.1; 0.2; 0.3 and 0.4‰, and the duration of sedation was measured. Fifteen days later, fishes were anesthetized using the same procedure, and a 36 mm incision was performed in the ventro-lateral region. The incision was sutured using a simple-interrupted pattern with 3, 6 or 9 mm as inter-suture distances. Results demonstrated...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas anesthetic; Surgery; Healing; Fish; Suture anesthetic; Surgery; Healing; Fish; Suture.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/802

Histo-cytological responses of the prolactin cells of the catfish Heteropneustes fossilis to cadmium exposure
Provedor de dados: 40
Autores: Srivastav,A.K; Rai,Rubi; Mishra,D; Srivastav,S. K; Suzuki,Nobuo.
Cadmium is an important metal for modern industrial processes and, being biologically non-essential, poses health hazards to the organisms. In this study we aimed to evaluate the effect of cadmium exposure on the histo-cytology of prolactin cells in the freshwater catfish, Heteropneustes (H.) fossilis. Fish were subjected to 288 mg/L (0.8 of 96 h LC50) and 72 mg/L (0.2 of 96 h LC50) of cadmium chloride for short-term and long-term, respectively. After sacrificing the fish, the blood was collected on 24, 48, 72 and 96 h in short-term and after 7, 14, 21, and 28 days in long-term experiment and analyzed for plasma calcium levels. Also, pituitary glands were fixed on these intervals. The plasma calcium levels of short-term cadmium exposed fish remain...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cadmium; Fish; Prolactin; Pituitary gland.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-37432014000300002

Acute Toxicity Of Euphorbia Royleana Boiss (Euphorbiaceae) latex on freshwater catfish, Heteropneustes Fossilis (Siluriformes, Heteropneustidae)
Provedor de dados: 40
Autores: ManiRam,Prasad; Abhishek,Kumar; Diwakar,Mishra; Sunil K,Srivastav; Ajai K,Srivastav.
An acute toxicity test was performed by using a four-day static renewal test to determine the LC50 value of aqueous extract of Euphorbia royleana latex for the freshwater fsh, Heteropneustes fossilis. The LC50 values, their upper and lower confdence limits and slope functions were calculated. The LC50 values for aqueous extract of Euphorbia royleana latex at various exposure periods were 7.758 mg/L for 24 h, 5.847 mg/L for 48 h, 4.474 mg/L for 72 h and 3.090 mg/L for 96 h. The regression coeffcient showed that there was signifcant negative correlation between exposure time and different LC values. Hence, it is concluded that the concentration to produce toxicity of latex of Euphorbia royleana is comparable and close to the concentration to produce toxicity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Euphorbia royleana; Toxicity; LC50.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-37432010000100001

Semiquantitative mercury determination in fish: a tool for poisoning prevention
Provedor de dados: 42
Autores: YALLOUZ,ALLEGRA V.; CALIXTO,TATIANA; HACON,SANDRA.
Human exposure to mercury intoxication through contaminated fish ingestion has been well studied, mainly among Japanese population. The Brazilian population, particulaly in the Amazon region, is now in focus due to findings of fish contamination. Major health impacts caused by mercury affect mostly people who have a regular fish diet. A continuous checking for mercury content in the most consumed fish could prevent human intoxication. A simple, non-instrumental method to allow a continuous checking of the mercury content in fish was developed. Based on this method, we are proposing a prevention action where community agents can be trained to perform fish analysis. Technical Schools and Universities located nearby the affected areas would be in charge of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mercury; Fish; Semiquantitative determination; Poisoning prevention.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000100015

Inactivated Parapoxvirus ovis as inducer of immunity in silver catfish (Rhamdia quelen)
Provedor de dados: 42
Autores: PAVAN,TATIANA R.; NIED,CRISTIAN O.; NORO,MIRELA; ANZILIERO,DENIZ; FRANDOLOSO,RAFAEL; KREUTZ,LUIZ CARLOS.
ABSTRACT Molecules with immune modulating activity are ubiquitously distributed in nature and their impact on aquaculture has been exploited in order to increase fish resistance to pathogens. Here, we investigated the effect of inactivated Parapoxvirus ovis (iPPVO) on blood cells and innate and acquired immune response of silver catfish (Rhamdia quelen). iPPVO inoculation had no effect on respiratory burst activity; however, following iPPVO inoculation, we observed a significant decrease on circulating monocytes concomitantly with an increased number of heterophilic granulocytes and thrombocytes, which are the main cells involved in innate immunity and provide connection with acquired immunity. Fish inoculated with a combination of bovine serum albumin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Immunostimulant; Adjuvant; Antibody; Fish.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401451

Morphological characteristics of the digestive tract of Schizodon knerii (Steindachner, 1875), (Characiformes: Anostomidae): An anatomical, histological and histochemical study
Provedor de dados: 42
Autores: Santos,Marcella L. Dos; Arantes,Fábio P.; Santiago,Kleber B.; Santos,José E. Dos.
The digestive tracts of 44 specimens of Schizodon knerii were studied using anatomical, histological and histochemical techniques. The mouth has terminal position, the lip epithelium is squamous stratified with mucous, claviform cells and taste buds, teeth have an incisive form and the tongue has a stratified squamous epithelium with mucous cells and taste buds. The oropharynx cavity is formed by gill apparatus and pharyngeal teeth. The oesophagus presented pleated mucosa, a stratified squamous epithelium with mucous cells, oesophageal glands and taste buds. The stomach presented cardiac, fundic and pyloric regions, simple prismatic epithelium with tubular glands, with none in the pyloric region. The intestine contains 11-15 pyloric caeca, a simple...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anostomidae; Digestive tract; Fish; Morphology.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200867

Oxidative stress responses of juvenile tambaqui Colossoma macropomum after short-term anesthesia with benzocaine and MS-222
Provedor de dados: 42
Autores: STRINGHETTA,GIOVANNA R.; BARBAS,LUIS A.L.; MALTEZ,LUCAS C.; SAMPAIO,LUÍS A.; MONSERRAT,JOSÉ M.; GARCIA,LUCIANO O.
ABSTRACT The present study aimed to evaluate the effects of benzocaine and tricaine methanesulfonate on oxidative stress parameters of juvenile tambaqui tissues. Fish (n=80) were anesthetized with benzocaine (100 mg L-1) or tricaine (240 mg L-1) and two control groups were used (non-anesthetized fish and fish exposed to ethanol-only). After anesthetic induction 10 fish/anesthetic were euthanized after 3, 12 and 24 hours post-anesthesia and tissue samplings (gills, liver and brain) were performed. Samples were submitted to analyses of enzyme activity glutathione-S-transferase (GST), cellular lipid peroxidation (TBARS) and total antioxidant capacity (ACAP). ACAP increased in gills of benzocaine treatment after 12 hours. The liver showed a reduction in ACAP...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anesthetics; Fish; GST; Lipid peroxidation; Total antioxidant capacity.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502209

Interactive effects of genotype x environment on the live weight of GIFT Nile tilapias
Provedor de dados: 42
Autores: OLIVEIRA,SHEILA N. DE; RIBEIRO,RICARDO P.; OLIVEIRA,CARLOS A.L. DE; ALEXANDRE FILHO,LUIZ; OLIVEIRA,ALINE M.S.; LOPERA-BARRERO,NELSON M.; SANTANDER,VICTOR F.A.; SANTANA,RENAN A.C.
ABSTRACT In this paper, the existence of a genotype x environment interaction for the average daily weight in GIFT Nile tilapia (Oreochromis niloticus) in different regions in the state of Paraná (Brazil) was analyzed. The heritability results were high in the uni-characteristic analysis: 0.71, 0.72 and 0.67 for the cities of Palotina (PL), Floriano (FL) and Diamond North (DN), respectively. Genetic correlations estimated in bivariate analyzes were weak with values between 0.12 for PL-FL, 0.06 for PL and 0.23 for DN-FL-DN. The Spearman correlation values were low, which indicated a change in ranking in the selection of animals in different environments in the study. There was heterogeneity in the phenotypic variance among the three regions and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oreochromis niloticus; Fish; Genetic gain; Heritability; Genetic correlation.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602931

A note on the occurrence of praniza larvae of Gnathiidae (Crustacea, Isopoda) on fishes from Northeast of Pará, Brazil
Provedor de dados: 42
Autores: Diniz,Daniel G.; Varella,Jamille E.A.; Guimarães,Maria Danielle F.; Santos,Arthur F.L.; Fujimoto,Rodrigo Y.; Monfort,Karla C.F.; Pires,Marcus A.B.; Martins,Maurício L.; Eiras,Jorge C.
The infection of the estuarine teleost fishes Mugil gaimardianus Desmarest, 1831 (Mugilidae), Arius phrygiatus Valenciennes, 1839 (Ariidae), Conodon nobilis Linnaeus, 1759 (Haemulidae), Cetengraulis edentulus Cuvier, 1829 (Engraulidae), and Anableps anableps Linnaeus, 1758 (Anablepidae) by praniza larvae of Gnathiidae (Crustacea, Isopoda) was studied in specimens fished off the Atlantic Ocean in Northeast of Pará State, near Bragança, Brazil. The highest infection prevalence value was found in Anableps anableps (42.3%) and the lowest in Conodon nobilis (9.1%). The mean intensity varied from 1 parasitein Conodon nobilis to 19.5 in Arius phrygiatus. A description of the larvae is provided. The morphology of the mouthparts is related to the blood sucking...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Parasites; Isopoda; Gnathiidae; Brazil.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000400007

Food consumption as an indicator of the conservation of natural resources in riverine communities of the Brazilian Amazon
Provedor de dados: 42
Autores: ISAAC,VICTORIA J.; ALMEIDA,MORGANA C.; GIARRIZZO,TOMMASO; DEUS,CLAUDIA P.; VALE,ROZEILZA; KLEIN,GILMAR; BEGOSSI,ALPINA.
ABSTRACT The present study analyzed and compared the daily consumption of foods of animal origin in eleven communities of the Lower Amazon, Trombetas and Purus Rivers, representing three different management systems and levels of conservation in the Brazilian Amazon. All food items of animal origin were weighed by at least 10% of the families in the study communities during a week in each period of the flood cycle between 2006 and 2008. Fish was the most important food, and was consumed during six days of the week, with an average rate of 169 kg.person-1.year-1. Game was second in importance, with 37 kg.person-1.year-1. This yearly rate of fish consumption is one of the highest in the world and is almost double the minimum recommended by the World Health...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Game meat; Management; Deforestation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502229

Influence of tides and winds on fishing techniques and strategies in the Mamanguape River Estuary, Paraíba State, NE Brazil
Provedor de dados: 42
Autores: Bezerra,Dandara M.M.; Nascimento,Douglas M.; Ferreira,Emmanoela N.; Rocha,Pollyana D.; Mourão,José S.
This work was carried out in two small fishing communities, Barra de Mamanguape and Tramataia, Northeastern Brazil. The aim was to study these traditional fishermen's knowledge and perception about tide and wind classifications, as well as their fishing strategies and techniques. Our research methodology involved various techniques: free interviews and semi-structured ones, guided tours and direct observations. The results obtained show the fishermen's classification of the tides according to the phases of the moon: 'breaking tide', 'flushing tide', 'dead tide' and 'big tide' designated technically these last as neap tide and spring tide, respectively. Wind is also an essential factor for the fishermen to make successful catches, and they classify it...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artisanal fishing; Ethnoictihology; Fish; Fishing communities; Lunar-tide cycle.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000300020

Mitochondria-rich cells changes induced by nitrite exposure in tambaqui (Colossoma macropomum Cuvier, 1818)
Provedor de dados: 42
Autores: COSTA,OSCAR T.F. DA; RAMOS,CLEVERSON A.; DUNCAN,WALLICE P.; LAMEIRAS,JULIANA L.V.; FERNANDES,MARISA N.
ABSTRACT The gill mitochondria-rich cells of the juvenile Amazonian fish Colossoma macropomum were analyzed using light and scanning and transmission electron microscopy after 96 h exposure to 0.04 and 0.2 mM nitrite. Although the number of mitochondria-rich cells decreased significantly in the lamellar epithelium, no decrease was found in the interlamellar region of the gill filament. Nitrite exposure caused significant reduction on the apical surface area of individual mitochondria-rich cells (p &lt; 0.05), with a resulting reduction of the fractional area of these cells in both the lamellar and filament epithelium. Swelling of endoplasmic reticulum cisternae, nuclear envelope and mitochondria were the main changes found in the mitochondria-rich cells....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cell damage; Fish; Gills; Morphometry; Ultrastructure.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000300965

Lippia alba essential oil promotes survival of silver catfish (Rhamdia quelen) infected with Aeromonassp.
Provedor de dados: 42
Autores: SUTILI,FERNANDO J.; CUNHA,MAURO A.; ZIECH,ROSANGELA E.; KREWER,CARINA C.; ZEPPENFELD,CARLA C.; HELDWEIN,CLARISSA G.; GRESSLER,LETICIA T.; HEINZMANN,BERTA M.; VARGAS,AGUEDA C.; BALDISSEROTTO,BERNARDO.
In vitro and in vivo activity of the Lippia alba essential oil (EO) against Aeromonas sp. was evaluated. In the in vitro assay the minimum inhibitory concentration (MIC) and a minimum bactericidal concentration (MBC) of EO for Aeromonas cells were determined using the microdilution method. Twenty five strains of Aeromonassp. isolated from infected fish obtained from local fish farms were used. MIC and MBC values were 2862 and 5998 µg mL-1 for L. alba EO and 0.5 and 1.2 µg mL-1for gentamicin, respectively. In the in vivo assay silver catfish juveniles (Rhamdia quelen) (7.50 ± 1.85 g and 10.0 ± 1.0 cm) with typical injuries associated to Aeromonas infection were divided into four treatments (in triplicate n=10): untreated fish (negative control), 10 mg L-1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibacterial activity; Essential oils; Fish; Gentamicin.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100095

Variability in the trophic position of larval fishes in theupper Paraná floodplain based on δ15N
Provedor de dados: 42
Autores: Manetta,Gislaine I; Bialetzki,Andréa; Martinelli,Luiz A; Benedito,Evanilde.
The upper Paraná River floodplain is composed of several marginal lagoons, making it a natural breeding ground for many fish species at developmental stages. The aim of this study is to estimate the trophic positions of these fishes based on feed intake (measured via diet) and nitrogen assimilation (measured via δ15N). The monthly samplings were concentrated during the spawning season in the Ivinheima River, which is located in the upper Paraná River floodplain. The specimens were grouped into preflexion, flexion and postflexion stages. Trophic positions were estimated based on the isotope value of nitrogen and on diet. During the developmental stages of P. squamosissimus, there were significant differences in the isotope values of δ15N; for H. edentatus,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Larval development; Trophic position; Δ15N.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000200016

Productive performance of Nile tilapia (Oreochromis niloticus) fed at different frequencies and periods with automatic dispenser
Provedor de dados: 45
Autores: Sousa,R.M.R.; Agostinho,C.A.; Oliveira,F.A.; Argentim,D.; Novelli,P.K.; Agostinho,S.M.M.
The performance of Nile tilapia (Oreochromis niloticus) raised in cages furnished with an automatic dispenser, supplied at different frequencies (once per hour and once every two hours) and periods (daytime, nighttime and both) was evaluated. Eighteen 1.0m³ cages were placed into a 2000m² pond, two meters deep with a 5% water exchange. One hundred and seventy tilapias, with initial weight of 16.0±4.9g, were dispersed into each 1m³ cage and the feed ration was adjusted every 21 days with biometry. Data was collected from March to July (autumn and winter). Significant difference to final weight (P&lt;0.05) among treatments was observed. The increase in feeding frequency improves the productive performance of Nile tilapias in cages and permitted better...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Automatic feeding; Cage; Feed management.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000100027

Copepod parasites of Curimatella lepidura (Characiformes, Curimatidae) from the Três Marias Reservoir, Brazil
Provedor de dados: 45
Autores: Albuquerque,M.C.; Osório,A.M.; Thatcher,V.E.; Brasil-Sato,M.C.
Copépodes ergasilídeos coletados nas brânquias de Curimatella lepidura do reservatório de Três Marias, alto rio São Francisco, Minas Gerais, Brasil e identificados como Miracetyma etimaruya e Ergasilus sp., constituem o primeiro registro de parasitos nesse peixe forrageiro e endêmico. A ocorrência foi independente do sexo e do tamanho dos peixes. A distribuição geográfica conhecida das espécies de Miracetyma Malta, 1993, restrita à bacia do rio Amazonas, é ampliada neste estudo para a bacia do rio São Francisco.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Fish; Parasites; Ergasilidae; Curimatidae; Ergasilus sp.; Miracetyma etimaruya.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000500035

Challenge of pacu (Piaractus mesopotamicus) fed diets supplemented with vitamins C and E by Aeromonas hydrophila under different temperature
Provedor de dados: 45
Autores: Garcia,F.; Moraes,F.R.; Martins,M.L.
Pacu Piaractus mesopotamicus fed diets supplemented with three vitamins C and E levels (zero, 250, and 500mg vitamin/kg diet) were challenged with Aeromonas hydrophila under different temperatures. Fish were kept in 300L plastic tanks and fed during the first 60 days with diets without vitamins C and E, in an attempt to reduce vitamin sources. After this period, fish were maintained at an initial density of 14 fish/tank and test diets were offered during 60 days. At the end of the experiment, all fish were infected with 6×10(6)CFU of A. hydrophila/fish, intraperitoneally injected. No interaction of dietary levels of vitamin C vs. E on mortality was observed. Supplementation with vitamins C and E did not decrease the mortality rate of fish challenged with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Piaractus mesopotamicus; Vitamin C; Vitamin E; Aeromonas hydrophila; Mortality.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000200014

Utilization of microsatellite markers to form families of "pejerrey" Odontesthes bonariensis in a genetic breeding program
Provedor de dados: 45
Autores: Tavares,R.A; Nunes,M.D; Almeida,D.B; Silva,J.C; Vaz,B.S; Moreira,C.G.A; Dionello,N.J.L; Piedras,S.R.N; Moreira,H.L.M.
Foram identificadas a divergência e a variabilidade genética, por meio do polimorfismo de seis marcadores microssatélites, de duas populações de Odontesthes bonariensis, utilizadas em manejos de cultivo e com potencial para fornecimento de reprodutores para programas de melhoramento genético. Do total de seis loci, cinco demonstraram eficiência para análise genética nas duas populações de O. bonariensis. A diferenciação genética significante nas populações analisadas pode fornecer a base para futuros programas de melhoramentos genéticos, através da combinação de material das populações divergentes para o desenvolvimento de linhagens ou execução de um programa de seleção.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Genetic variability; Polymorphism.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000500034

Change in physical and chemical characteristics related to the binomial time-temperature used in sous pasteurization see Tambaqui (Colossoma macropomum)
Provedor de dados: 45
Autores: Kato,H.C.A.; Lourenço,L.F.H.; Araújo,E.A.F.; Sousa,C.L.; Joele,M.R.S. Peixoto; Ribeiro,S.C.A.
The goal of this study was to evaluate sous vide fish and assess the influence of time and temperature on the pasteurization process through quality parameters. The raw material (tambaqui fillets) and the sous vide underwent physical, physicochemical, and microbiological analyses. A sauce was prepared containing soy sauce, water, horseradish and garlic flakes. The product's pasteurization parameters of time and temperature were defined according to a 22 central composite rotatable design (CCRD), and the dependent variables were water holding capacity (WHC) and instrumental texture aiming at obtaining high WHC values for the product to maintain the desired juiciness. The microbiological analysis required by legislation have indicated that the fish fillets...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Tambaqui; Texture; Response surface.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000100224

Clinical, biochemical and haemathological effects in Rhamdia quelen exposed to cypermethrin
Provedor de dados: 45
Autores: Montanha,F.P.; Fredianelli,A.C.; Wagner,R.; Sacco,S.R.; Rocha,D.C.C.; Pimpão,C.T.
The acute intoxication of Cypermethrin in Silver Catfish (Rhamdia quelen) was evaluated. Animals weighing 56.67±4.43g and measuring 18.92±1.16cm were exposed to sublethal concentrations of Cypermethrin for the species in hydrological conditions during 96 hours. A total of 52 fish divided into three groups were used and received the following concentrations of Cypermethrin: 0 (n=12); 1.5 (n=20) and 2.5 (n=20)mg/L. The intoxicated animals suffered behavioral changes such as loss of balance, swimming alteration, dyspnea, upright swimming and sudden spiral swimming movements. As soon as the 96-hour period was over, a blood collection for hematological and biochemical analyses was performed. A complete haemogram test, plasmatic protein test, albumin, alanine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Biomarkers; Ecotoxicology; Haemogram; Pyrethroids.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000300697

Evaluation of fish sperm concentration using two counting chambers
Provedor de dados: 45
Autores: Taitson,P.F.; Godinho,H.P.
A concentração espermática do sêmen do peixe anostomídeo Leporinus elongatus (Valenciennes, 1849) foi estimada nas câmaras de Makler e de Neubauer, tendo-se obtido, respectivamente, 10,9 ± 2,8 &lt;FONT FACE=Symbol&gt;´&lt;/FONT&gt; 10(9) e 11,9 ± 3,7 &lt;FONT FACE=Symbol&gt;´&lt;/FONT&gt; 10(9) espermatozóides/ml de sêmen sem que ocorresse diferença significativa entre essas médias (P &gt; 0,05). A estimativa da concentração espermática do sêmen na câmara de Makler apresentou vantagens em relação à da câmara de Neubauer. A contagem na câmara de Makler pôde ser feita sem a necessidade de se esperar pela deposição dos espermatozóides no seu fundo. A baixa diluição do sêmen (1:1.000) necessária para se estimar a concentração espermática pode ser considerada...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Fish; Sperm counting; Makler chamber; Neubauer chamber.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000200020

Camallanus maculatus n. sp. (Nematoda: Camallanidae) in an ornamental fish Xiphophorus maculatus (Osteichthyes: Poeciliidae) cultivated in São Paulo State, Brazil
Provedor de dados: 45
Autores: Martins,M.L.; Garcia,F.; Piazza,R.S.; Ghiraldelli,L.
The present study describes Camallanus maculatus n. sp. (Nematoda: Camallanidae) from Xiphophorus maculatus (Osteichthyes: Poecilidae) collected in an ornamental fish farm in São Paulo State, Brazil. Thirty-three out of 40 examined fish were parasitized (82% prevalence) with mean intensity of 2.8 (1-20). Male specimens were 3,500µm total length and females 7,100µm total length, provided with orange-brown buccal capsule and two developed tridents. Males showed two unequal spicules, gubernaculum absent and females with vulva situated in the middle of the body. The main characteristics were the sleekly longitudinal ridges in the buccal capsule in both sexes, enlargement at the anterior end of the smaller spicule, the number of genital papillae, longer...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Xiphophorus maculatus; Nematode; Prevalence; Camallanus maculatus n. sp.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000500019

Growth, body composition and hematology of juvenile pacu (Piaractus mesopotamicus) fed increasing levels of ractopamine
Provedor de dados: 45
Autores: Bicudo,A.J.A.; Sado,R.Y.; Cyrino,J.E.P.
The effects of four levels of dietary ractopamine (RAC) on growth, body composition and hematology of pacu, Piaractus mesopotamicus juveniles (103.6±3.3g) were studied. Fish were housed into 12 circular tanks of 1 m3 - 15 fish per tank - and fed for 60 days with practical diets supplemented with 0; 10; 20 or 40mg RAC per kg of diet, in a totally randomized design trial (n=3). Fish fed diets containing up to 40mg RAC/kg diet for 60 days did not have improved growth or body composition parameters. There were no significant differences in hematocrit, hemoglobin and mean corpuscular hemoglobin. Plasma glucose and triglycerides were significantly smaller in fish fed with RAC; however no significant differences between RAC levels were detected. The inclusion of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Feed additive; Repartitioning agents; Piaractus mesopotamicus; Nutrition; Hematological parameters.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000500034

Proteocephalid cestode infection in tucunaré Cichla sp. (Osteichthyes: Cichlidae) from Paraná River, São Paulo
Provedor de dados: 45
Autores: Santos,R.S.; Roumbedakis,K.; Marengoni,N.G.; Takahashi,H.K.; Pimenta,F.D.A.; Melo,C.M.R.; Martins,M.L.
The occurrence of proteocephalid cestodes in tucunaré Cichla sp., captured monthly, between August 2000 and August 2001, in Paraná River, Presidente Epitácio, SP, was evaluated. From 128 specimens, 71 (55.6%) were parasitized by Proteocephalus macrophallus (Diesing, 1850) and/or P. microscopicus (Woodland, 1935). Total mean abundance and intensity were 157.08 and 223.41, respectively. The highest prevalence (90%) mean abundance (1,122.4) and intensity indexes (1,247.11) occurred in February 2001, while in September 2000 there were no observed animals infected by cestodes. No relationship between the sex of the host and parasitological indexes was found.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Tucunare; Parasitism; Proteocephalidae; Paraná River.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000300008

Effect of ractopamine on the chemical and physical characteristics of pacu(Piaractus mesopotamicus) steaks
Provedor de dados: 45
Autores: Oliveira,L.M.F.S.; Leal,R.S.; Mesquita,T.C.; Pimenta,M.E.S.G.; Zangeronimo,M.G.; Sousa,R.V.; Alvarenga,R.R.
The objective was to evaluate the use of ractopamine (RAC) in the diet for pacu (Piaractus mesopotaminus) in the finishing phase on some quality parameters of the fillets. Thirty-five animals weighing 0.868±0.168kg were distributed in a completely randomised design with five treatments (0.0 - control; 11.25, 22.50, 33.75 and 45 ppm of RAC) and seven replicates with two fillets obtained from the same animal. The diets were isocaloric and isoprotein and experimental time was 90 days. RAC did not affect (P&amp;gt;0.05) the initial pH or ph after 24 hours of the fillets. Compared to the control, RAC increased (P&lt;0.05) the moisture content of the fillets in natura and lipid oxidation of samples stored for 12 days in the refrigerator or freezer for 60 days....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Lipid oxidation; Animal production; Fillet quality.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000100026

Stress in Salminus brasiliensis fingerlings due to different densities and times of transportation
Provedor de dados: 45
Autores: Adamante,W.B.; Nuñer,A.P.O.; Barcellos,L.J.G.; Soso,A.B.; Finco,J.A.
The stress in dorado fingerlings (Salminus brasiliensis) caused by transportation at densities of 5, 10, and 15g/l after 4, 8, and 12h was evaluated by the concentration of tissue cortisol measured by ELISA. The conditions of transportation were simulated on an orbital table shaker with horizontal movements, inside 15 litres plastic bags filled with 4 litres of water and pure oxygen. Cortisol concentrations increased in all densities after 4h of transportation converging to a common concentration at the end of the tested times. Electrical conductivity of water increased with density and transportation time. The transportation caused stress on fish, but the increase on density and in times of transportation did not cause mortality to fingerlings. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salminus brasiliensis; Fish; Stress; Transportation; Cortisol.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000300034

An anatomopathological study of hepatic coccidiosis (Calyptospora sp.) in the Acará-pixuna, Aequidens plagiozonatus Kullander, 1984 from the Brazilian state of Pará
Provedor de dados: 45
Autores: Videira,M.; Velasco,M.; Tortelly,R.; Menezes,R.C.; São Clemente,S.C.; Matos,E.
The present study focuses on the anatomopathological alterations provoked by parasitism by Calyptospora sp. in 40 specimens of Aequidens plagiozonatus collected in Pará, Brazil. Examinations of the fresh material by compression of the hepatopancreas and histological sections showed immature forms and oocysts characteristic of the genus Calyptospora, in addition to a large quantity of melanomacrophagic centers spread throughout the organ. No significant inflammation of the hepatic tissue was observed. The melanomacrophagic centers and the compression of the hepatocytes are part of the response of the host to the parasite. This study represents the first record of parasitism by Calyptospora in A. plagiozonatus.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Acará-pixuna; Parasite; Coccidio; Calyptospora; Pathology.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000100014

Isolation and characterizaton of Edwardsiella tarda from pacu Myleus micans
Provedor de dados: 45
Autores: Lima,L.C.; Fernandes,A.A.; Costa,A.A.P.; Velasco,F.O.; Leite,R.C.; Hackett,J.L.
Investigaram-se as causas da mortalidade de peixes ocorrida em janeiro de 2005 na bacia do Rio São Francisco, Brasil. Edwardsiella tarda foi isolada dos rins de pacu Myleus micans. O isolado, denominado Et-LIS, caracterizado por bastonetes Gram negativos móveis, foi identificado por testes bioquímicos e confirmado pelo kit comercial Bactray. A susceptibilidade a 10 drogas das 12 testadas foi determinada pelo método de difusão de discos, enquanto as características de virulência foram avaliadas mediante inoculação experimental em Cyprinus carpio e em Oreochromis spp. Ambas as espécies desafiadas apresentaram sinais compatíveis com infecção por E. tarda. As tilápias (Oreochromis spp.) morreram 48h após a inoculação, enquanto as carpas (Cyprinus carpio)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Pacu; Myleus micans; Edwardsiella tarda; Sao Francisco basin.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000100040

Effect of different concentrations of protein on the digestive system of juvenile silver catfish
Provedor de dados: 45
Autores: Melo,J.F.B.; Lundstedt,L.M.; Moraes,G.; Inoue,L.A.K.A.
Aspects of digestion in juvenile silver catfish Rhamdia quelen fed with four levels of protein (20, 27, 34 and 41%) were studied. The studied traits were digestive enzymes (nonspecific proteases, trypsin, chymotrypsin, amylase and lipase) and weight gain. The experiment lasted 60 days; 160 juvenile catfish with initial body weight of 32 grams were transferred to the experimental system of 500L tanks with re-circulated and thermostatized water. The average weight of silver catfish increased with dietary protein and 41% of crude protein (CP) was accepted as the best one. Gastric protease activity increases with the CP level. The intestinal alkaline protease reached the peak at 27% CP and the highest activities were observed in the anterior section of the gut...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestive enzymes; Nutrition; Fish; Rhamdia quelen.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000200027

Reproductive dynamics of Leporinus obtusidens captured downstream from an important hydropower Station in Brazil
Provedor de dados: 45
Autores: Andrade,E.S.; Felizardo,V.O.; Murgas,L.D.S.; Drumond,M.M.; Zangerônimo,M.G.; Costa,S.F.
This study evaluated the reproductive dynamics and gonadal morphology of piaparas (Leporinus obtusidens) captured downstream from the Funil Hydroelectric Power Station. The 107 piaparas evaluated were captured monthly from Sep 2006 to Aug 2007. The data were stratified among the seasons to evaluate gonad maturation and the reproductive period was determined by assessing the gonadosomatic index, hepatosomatic index, abdominal fat index (AFI), weight:length ratio, condition factor and sexual proportion. The reproductive period lasted from winter to summer (Jul-Mar) in females and from spring to autumn (Sept-Jun) in males. AFI was high during and after the reproductive period in females and only during the reproductive period in males. The highest HIS values...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Reproduction; Piracema; Histology; Gonad.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000500021

Spontaneous multi-cystic peripheral ameloblastoma in the freshwater angelfish, from the Brazilian state of Pará
Provedor de dados: 45
Autores: Videira,M.; Velasco,M.; Tortelly,R.; Clemente,S. C. São; Matos,P.; Sanches,O.; Matos,E.
Este trabalho registra a ocorrência espontânea de ameloblastoma em P. scalare. O tumor foi obtido a partir de um exemplar de Acará Bandeira, sendo fixado, seccionado, e os fragmentos processados para microscopia de luz e microscopia eletrônica de varredura (MEV). O exame macroscópico evidenciou uma massa tumoral que se estendia do rebordo alveolar do maxilar superior à face externa labial. À MEV, a neoplasia apresentou uma série de espículas. Microscopicamente, percebia-se um processo neoplásico constituído por tecido conjuntivo de característica mixoide, ricamente vascularizado, onde eram observados fragmentos de tecido osteoide. A amostra revelou proliferação neoplásica do epitélio odontogênico, onde as células neoplásicas se organizavam na forma de...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Fish; Pterophyllum scalare; Histopathology; Neoplasia.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000401201

Spawning failure in Brycon amazonicus may be associated with ovulation and not with final oocyte maturation
Provedor de dados: 45
Autores: Hainfellner,P.; De Souza,T.G.; Muñoz,M.E.; Freitas,G. A.; Batlouni,S.R.
Avaliaram-se os possíveis mecanismos envolvidos com a falha na desova de matrinxãs (Brycon amazonicus), submetidas à indução hormonal por extrato bruto de hipófise de carpa. Para tal, após a extrusão, os ovários foram coletados e analisados histomorfometricamente. Nas fêmeas que não desovaram (FNDs), a maioria dos ovócitos vitelogênicos remanescentes nos ovários atingiu a maturação final, apresentando quebra de vesícula germinativa, mas não foram ovulados (NOs). Consequentemente, estas fêmeas apresentaram frequências mais baixas de folículos pós ovulatórios (5%) quando comparadas com a que desovou (FD) (23%). Com relação aos NOs, os valores se inverteram e a frequência destes nas FNDs (21%) foi maior do que na FD (3%). Estes dados indicam que as falhas na...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Brycon amazonicus; Oocyte release; Hormonal induction.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000200038

In situ hybridization of somatolactin transcripts in the pituitary glands from acclimatized carp (Cyprinus carpio)
Provedor de dados: 48
Autores: LÓPEZ,MAURICIO; FIGUEROA,JAIME; KAUSEL,GUDRUN; VERA,MARÍA INÉS; KRAUSKOPF,MANUEL.
We isolated and cloned a carp somatolactin SL DNA fragment, of which 78% of the nucleotides were identical to the corresponding salmon SL sequence. The results obtained upon Northern blot hybridization of carp pituitary RNA allowed the identification of two transcripts as described for other fish. When the content of SL transcripts in pituitary sections from summer- and winter- acclimatized carp was quantified by in situ hybridization assays, we found no significant differences between the two seasons. In salmonids, plasma SL reaches higher levels in summer than in winter in synchrony with the water temperature cycle; in the eurythermal carp, however, the complex adaptive responses imposed by seasonal environmental changes do not seem to include the...
Tipo: Journal article
Palavras-chave: Acclimatization; In situ hybridization; Somatolactin expression; Pituitary; Carp; Fish.
Ano: 2001
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602001000100010

The effect of crude ethanol extract and fractions of Hyptidendron canum (Pohl ex Benth.) Harley on the hepatopancreas of Oreochromis niloticus L
Provedor de dados: 48
Autores: FIUZA,TATIANA S; SILVA,PAULO C; PAULA,JOSÉ R; TRESVENZOL,LEONICE M F; SABÓIA-MORAIS,SIMONE M T.
Hyptidendron canum (Pohl ex Benth.) Harley is a native tree of the Brazilian Savannah. The fish Oreochromis niloticus L. was used as an experimental model to determine the bioactivity of the crude ethanol extract as well as ethyl acetate, hexanic and chloroform fractions obtained from its leaves. The plant ethanol extract and fractions were administered to the fish orally with their feed. Twenty four hours later, the fish were sacrificed and their livers dissected, fixed in neutral formalin, embedded in paraffin and sectioned. Histological analyses were performed using Masson's trichrome and Haematoxylin-Eosin. Histochemical studies were performed using Feulgen, PAS (Periodic Acid Schiff) and PAS + salivary amylase and Sudan IV stain. The qualitative...
Tipo: Journal article
Palavras-chave: Fish; Nile tilapia; Savannah biome; Vasodilation.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000200003

Bioactivity of crude ethanol extract and fractions of Eugenia uniflora (Myrtaceae) in the hepatopancreas of Oreochromis niloticus L
Provedor de dados: 48
Autores: FIUZA,TATIANA S; SILVA,PAULO C; PAULA,JOSÉ R DE; TRESVENZOL,LEONICE M F; SABÓIA-MORAIS,SIMONE M T.
This study evaluates the bioactivity of the crude ethanol extract and ethyl acetate, hexane and chloroform fractions obtained from Eugenia uniflora leaves using the hepatopancreas of Oreochromis niloticus L. as an experimental model. The ethanol extract and fractions were administered to the fish orally with their feed. Twenty-four hours later, the fish were sacrificed and their livers dissected, fixed in neutral formalin, embedded in paraffin and sectioned. Histological analyses were performed using Masson's trichrome and Haematoxylin-Eosin. Histochemical studies were performed using Feulgen, PAS (Periodic Acid Schiff) and PAS + salivary amylase and Sudan IV stain. The qualitative analysis of the material showed that the crude extract and the ethyl,...
Tipo: Journal article
Palavras-chave: Fish; Medicinal plants; Vasodilation.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000400002

Growth differentiation factor 9 and bone morphogenetic protein 15 expression in previtellogenic oocytes and during early embryonic development of Yellow-tail Kingfish Seriola lalandi
Provedor de dados: 48
Autores: Palomino,Jaime; Herrera,Giannina; Dettleff,Phillip; Martínez,Víctor.
BACKGROUND: During fish oocyte maturation, specific molecules are expressed and accumulated within oocyte until fertilization and embryo development. Special attention have been paid in members of the transforming growth factor (TGF-&amp;#946;) superfamily; growth differentiation factor 9 (GDF9/gdf9) and bone morphogenetic protein 15 (BMP15/bmp15), which exert regulatory functions during oocyte maturation and follicle development. However, little attention has been paid to the involvement of these molecules during embryogenesis considering its importance for the formation of a good quality egg and subsequent embryo survival. The purpose of this study was to analyze the expression of gdf9 andbmp15 in previtellogenic oocytes and during early embryonic...
Tipo: Journal article
Palavras-chave: Gdf9; Bmp15; Embryo development; Oocyte maturation; Fish.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100054

Genomic organization of the rDNA cistron of the teleost fish Cyprinus carpio
Provedor de dados: 48
Autores: VERA,MARÍA INÉS; MOLINA,ALFREDO; PINTO,RODRIGO; REYES,MAURICIO; ÁLVAREZ,MARCO; KRAUSKOPF,ERWIN; QUEZADA,CLAUDIA; TORRES,JORGE; KRAUSKOPF,MANUEL.
The seasonal adaptation of the teleost Cyprinus carpio to the cyclical changes of its habitat demands physiological compensatory responses. The process involves profound nucleolar adjustments and remarkable changes in rRNA synthesis, which affects ribosomal biosynthesis. In this context, we have demonstrated that the synthesis of several proteins involved in ribosomal biogenesis as protein kinase CK2, ribosomal protein L41 and nucleolin, as well as U3 snoRNP, are differentially regulated in summer-acclimatized carp compared to the cold-season adapted fish. To understand the mechanisms involved in the seasonal regulation of rRNA gene transcription, we have been studying the carp rDNA cistron structure. Because the cis-elements that regulate the expression...
Tipo: Journal article
Palavras-chave: Ribosomal gene; RRNA; RDNA; Fish; Carp.
Ano: 2003
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602003000200014

Relative abundance and reproductive tactics of a Loricariidae species at Saraiva Lagoon, Ilha Grande National Park, MS-PR, Brazil
Provedor de dados: 49
Autores: Bailly,Dayani; Batista-Silva,Valéria Flávia; Abelha,Milza Celi Fedatto; Kashiwaqui,Elaine Antoniassi Luiz; Fernandes,Carlos Alexandre; Carvalho,Edson Dias de.
This study aimed to evaluate population abundance patterns and the main events in the reproductive cycle of Loricariichthys platymetopon at Saraiva Lagoon, Ilha Grande National Park, MS-PR, Brazil. Monthly samplings were conducted from October 2004 to September 2005 in three sections of the lagoon: entrance, middle and end, which resulted in the capture of 175 individuals. Spatial and temporal variation in abundance was obtained through CPUE (number of captured individuals/1000 m² of gillnets in 12 hours). The reproductive tactics considered were: duration, time and location of spawning, oocyte diameter and fecundity. The highest relative abundance was recorded in February, in the middle section of the lagoon, and the reproductive period lasted from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Distribution; Oocyte diameter; Fecundity; Reproductive period.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000300014

Fish fauna of Floresta Nacional de Ipanema, São Paulo State, Brazil
Provedor de dados: 49
Autores: Smith,Welber Senteio; Biagioni,Renata Cassemiro; Halcsik,Letícia.
The Floresta Nacional de Ipanema is located on the southeast of the state of São Paulo, Brazil, and belongs to the cities of Araçoiaba da Serra, Iperó and Capela do Alto. It extends over an area of 5,069 ha surrounded by several streams, small lakes, the Ipanema river and the Hedberg dam. The fish species in this area were sampled between 1993 and 2012 in several isolated studies, with the use of gill nets and sieves. Fifty species of fish were registered, 43 native and 7 non-native (Cyprinus carpio, Piaractus mesopotamicus, Brycon cephalus, Triportheus nematurus, Clarias gariepinus, Tilapia rendalli and Poecilia vivipara), distributed in seven Orders, 21 Families and 41 Genera. The present study aimed at cataloguing the fish species in the Ipanema...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floresta Nacional de Ipanema; Ichthyofauna; Inventory; Fish; Conservation unit.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200175

Records of chironomidae larvae living on other aquatic animals in Brazil
Provedor de dados: 49
Autores: Roque,Fabio de Oliveira; Trivinho-Strixino,Susana; Jancso,Mário; Fragoso,Evelise N.
In this study, we report forty-nine cases of Chironomidae larvae living on other animals in Brazilian aquatic ecosystems, including a wide range of hosts, such as hydrozoans, snails, insects and fish. We also discuss some empirical difficulties to establish the ecological interactions between chironomids and their hosts.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Chironomidae; Aquatic insects; Mollusks; Fish; Ecological interaction; Hosts.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032004000200018

Importance of allochthonous resources in the diet ofAstyanax aff. fasciatus (Osteichthyes: Characidae) in streams: a longitudinal approach
Provedor de dados: 49
Autores: Silva,Marlene R.; Fugi,Rosemara; Carniatto,Natália; Ganassin,Maria Júlia M.
The aim of this investigation was to respond the following question: is the consumption of allochthonous resources by Astyanax aff.fasciatus influenced by the longitudinal gradient in streams? To respond this question we sampled fish in the headwater, middle and mouth stretches of four streams (Upper Paraná River basin). Samplings were carried out from July 2007 to June 2008 using electrical fishing. Fish were identified, measured and their stomach contents identified and quantified. Spatial variations (among longitudinal stretches) in the diet were summarized using a principal coordinate analysis (PCoA). Spatial differences in the diet were tested with a multiresponse permutation procedure (MRPP). Allochthonous resources had the highest percentage of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Feeding resources; Terrestrial subsidies; Pirapó River; Paraná River.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300113

Morphological abnormality in a Longnose Stingray Hypanus guttatus (Bloch &amp;amp; Schneider, 1801) (Myliobatiformes: Dasyatidae)
Provedor de dados: 49
Autores: Schmid,Kurt; Andrade,Marcelo; Machado,Fabiola; Araujo,Juliana; Corrêa,Eglé; Giarrizzo,Tommaso.
Abstract: A Longnose stingray Hypanus guttatus (Bloch &amp; Schneider, 1801) embryo with a major asymmetrical morphological abnormality to its pectoral fin was obtained from commercial shrimp fisher's bycatch, off the coast of the Amazon River Mouth in northern Brazil. The specimen and the deformity, which would presumably have impeded its long-term survival, are described and documented in detail. We herein provide the first report of an abnormal individual of this species for the Brazilian coast.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Fish; Elasmobranchs; Atlantic; Teratology; Deformity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400502

Marine ichthyofauna of Santa Catarina Island, Southern Brazil: checklist with comments on the species
Provedor de dados: 49
Autores: Ribeiro,Gisela Costa; Cattani,André Pereira; Hostim-Silva,Mauricio; Clezar,Leandro; Passos,Ana Carolina dos; Soeth,Marcelo; Cardoso,Olímpio Rafael; Spach,Henry Louis.
Abstract: This study aimed to present a checklist of marine fishes from coastal environments of the Island of Santa Catarina, including comments on the zoogeographic affinities, conservation status of each species, and functional groups. A total of 169 fish species belonging to 30 orders and 58 families were recorded. The most speciose families were Sciaenidae, Carangidae and, Engraulidae, representing 26,62% of the recorded species. Anchoa was the richest genus, followed by Sphoeroides and Cynoscion. Most of the species have their distribution limited to the western Atlantic, and two groups of fish were distinguished according to the species distributions: 1) species occurring in the Caribbean and in the Brazilian Province; and 2) Transatlantic species....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Species list; Southwest Atlantic.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300304

The stream fish fauna from three regions of the Upper Paraná River basin
Provedor de dados: 49
Autores: Fagundes,Daniela Cristina; Leal,Cecília Gontijo; Carvalho,Débora Reis de; Junqueira,Nara Tadini; Langeani,Francisco; Pompeu,Paulo dos Santos.
This study aimed to conduct an inventory of fish assemblages in small streams that are tributaries of large reservoirs in three previously unstudied regions of the Upper Paraná River basin. We sampled 117 streams from 1st to 3rd order in Araguari (Nova Ponte hydropower plant reservoir), Paranaíba (São Simão reservoir) and Grande (Volta Grande reservoir) drainages. In total, 20,696 specimens belonging to 100 species, 53 genera, 20 families and six orders were collected. Of these, 11,530 specimens and 41 species were recorded in Araguari, whereas 17 were exclusive to this drainage. In Grande drainage, 3,537 individuals belonging to 41 species (11 exclusive) and in Paranaíba, 5,629 specimens and 67 species (38 exclusive) were sampled. The mean richness per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Species inventory; New species.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200203

Natural history and population data of fishes in caves of the Serra do Ramalho karst area, Middle São Francisco basin, northeastern Brazil
Provedor de dados: 49
Autores: Trajano,Eleonora; Secutti,Sandro; Bichuette,Maria Elina.
During the exploration and mapping of new caves in Serra do Ramalho karst area, southern Bahia state, cavers from the Grupo Bambuí de Pesquisas Espeleológicas - GBPE (Belo Horizonte) noticed the presence of troglomorphic catfishes (species with reduced eyes and/or melanic pigmentation), which we intensively investigated with regards to their ecology and behavior since 2005. Non-troglomorphic fishes regularly found in the studied caves were included in this investigation. We present here data on the natural history of two troglobitic (exclusively subterranean troglomorphic species) fishes - Rhamdia enfurnada Bichuette &amp;amp; Trajano, 2005 (Heptapteridae; Gruna do Enfurnado) and Trichomycterus undescribed species (Trichomycteridae; Lapa dos Peixes and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caves; Natural history; Fish; Troglobites; Bahia state.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000100015

Population structure, condition and diet of Oligosarcus paranensis (Menezes &amp;amp; Gery, 1983) (Osteichthyes: Characidae) at two reservoirs in South Brazil
Provedor de dados: 49
Autores: Abelha,Milza Celi Fedatto; Kashiwaqui,Elaine Antoniassi Luiz; Goulart,Erivelto.
This study investigated the population parameters, condition and diet of Oligosarcus paranensis at Fiú and Mourão Reservoirs, located in Paraná State, Brazil. The fishes were collected quarterly between 1996/1997 and 1998/1999 using gillnets. Food items were quantified by volumetric method. The specimens at Fiú showed comparatively smaller length and worse condition. Sex ratio was statistically equal to 1:1 at Mourão, whereas there was a significant predominance of males at Fiú. Sex ratio also varied among size classes. Allometric growth prevailed among the studied groups. The diet consisted mainly of fishes and was complemented with invertebrates and plant matter in both reservoirs. There was a change in the feeding pattern as the standard length...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Sex ratio; Feeding; Dog-tooth characid; Impoundments.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000100015

Ichthyofauna of Seridó/Borborema: a semi-arid region of Brazil
Provedor de dados: 49
Autores: Silva,Márcio Joaquim da; Ramos,Telton Pedro Anselmo; Diniz,Virginia Dantas; Ramos,Robson Tamar da Costa; Medeiros,Elvio Sergio Figueredo.
The Seridó/Borborema region is located between the States Paraíba and Rio Grande do Norte and a priority area for conservation of the Caatinga. This region is under the hydrological influence of the middle portion of Piranhas-Açu River basin. Previous systematic inventories of the ichthyofauna of this Caatinga’s area are not significant. The Caatinga fish fauna is threatened due the advancement of historic anthropogenic activities, mainly agricultural. Furthermore, another relevant aspect is the recent governmental decision of transferring water from São Francisco River to other Northern river basins, which includes the Piranhas-Açu basin. This study performed a systematic survey of the Seridó/Borborema’s ichthyofauna. The sites were sampled during the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inventory; Fish; Piranhas-Açu River; Caatinga; Northeastern Brazil.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300117

Opportunistic predation of fish by anomuran crabs (Crustacea, Anomura, Aeglidae) in rivers of southern Brazil
Provedor de dados: 49
Autores: Savaris,Marcoandre; Lampert,Silvana; Trevisan,André; Masunari,Setuko.
The opportunistic predation on the fishes Astyanax fasciatus and Crenicichla sp. entangled in gill net by the aeglid crabs Aegla grisella and Aegla singularis was observed in rivers of southern Brazil. These events occurred in two rivers located at the National Forest of Passo Fundo, in Mato Castelhano municipality, Rio Grande do Sul State and Tangará municipality, Santa Catarina State. In both places the fish showed similar wound pattern, with eyes and fins being consumed first. However, predation of the whole body was also recorded, probably due to the high number of aeglid crabs feeding on the same individual. This record intended to contribute for understanding the natural diet of these crabs in freshwater environments.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Fish; Behavior; Aeglid crabs.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400025

Using fish assemblages in different habitats to develop a management plan for the Upper Essequibo Conservation Concession, Guyana
Provedor de dados: 49
Autores: Willink,Philip Wesley; Alexander,Eustace; Jones,Christopher Campbell.
The Upper Essequibo Conservation Concession is a reserve in central-eastern Guyana managed by Conservation International. The site is uninhabited by people and poorly studied. The first scientific fish survey was in 2007 in conjunction with the filming of the BBC nature documentary Lost Land of the Jaguar. Aquatic habitats were primarily flowing water, ranging from the main channel of the Essequibo River to small forest creeks. Ponds and seasonally flooded forests were uncommon. Large predatory fishes were abundant in the Essequibo River. Fishes tolerant of low oxygen levels were common in flooded forests and small forest creeks. There was zero similarity between the fish assemblages of the Essequibo River and flooded forests / small forest creeks. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic continuum; Flooded forests; Nature documentary; Rapid assessment; Fish.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400260

The coexistence of endemic species of Astyanax(Teleostei: Characidae) is propitiated by ecomorphological and trophic variations
Provedor de dados: 49
Autores: Mise,Fabio Teruo; Fugi,Rosemara; Pagotto,João Paulo Alves; Goulart,Erivelto.
The aim of the present study was to evaluate factors that may favor the coexistence of three endemic species of Astyanax (Astyanax bifasciatus,Astyanax minor and Astyanax gymnodontus) in Segredo Reservoir (Iguaçu River, Paraná State, Brazil), and to test the hypothesis that these species share food resources, being the dietary variations related to morphological characteristics. Fish were collected at three samplings sites in 1993 and 1994, during the first year after the filling phase of the reservoir. The diet was assessed using stomach content analysis and ecomorphology by ecomorphological indices. Diet and ecomorphology data were ordinated by multivariate techniques (DCA and PCA, respectively), aiming to characterize trophic guilds and identify...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Resource partitioning; Ecomorphological divergence; Iguaçu River; Segredo reservoir.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300021

Ichthyofauna of streams from the lower Iguaçu River basin, Paraná State, Brazil
Provedor de dados: 49
Autores: Larentis,Crislei; Delariva,Rosilene Luciana; Gomes,Louise Cristina; Baumgartner,Dirceu; Ramos,Igor Paiva; Sereia,Diesse Aparecida de Oliveira.
Abstract The drainages of the Iguaçu River basin, as well as the main channel of the river, have peculiar characteristics resulting from geomorphological processes in this area, including the formation of the Iguaçu River Falls. This slope in the lower portion of the basin is a biogeographical barrier to many organisms. In this study was inventoried the fish fauna of streams of the lower Iguaçu River basin, evaluating possible differences in the species composition upstream and downstream of this biogeographical barrier. Sampling were conducted between 2004 and 2013, in five streams, three upstream and two downstream of the Iguaçu River Falls, using electrofishing. The nMDS analysis was run to investigate possible groupings of similar fauna between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeographic barrier; Endemics species; Fish.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000300203

Seafood as functional food
Provedor de dados: 52
Autores: Soccol,Marcilene C. Heidmann; Oetterer,Marília.
Functional food presents specific physiological properties, supplies nutrients and can be naturally found in formulated food or added to it. Seafood plays an important role in human diet, representing the largest stock available of w-3 polyunsaturated fatty acids, especially eicosapentaenoic (EPA) and docosahexaenoic (DHA). Scientific researchers have intensified their studies on fatty acids due to their importance in preventing and/or curing diseases, especially cardiovascular and inflammatory ones. This review describes the most important aspects of w-3 fatty acids found in fish, as well as their roles in the mechanism involved in the prevention and control of diseases.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Seafood; Polyunsaturated fatty acids; W-3 fatty acids; Functional foods.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000300016

Population structure of Phalloceros caudimaculatus (Hensel, 1868) (Cyprinodontiformes, Poeciliidae) collected in a brook in Guarapuava, PR
Provedor de dados: 52
Autores: Wolff,Luciano Lazzarini; Hreciuk,Ericsson Ricardo; Viana,Douglas; Zaleski,Tânia; Donatti,Lucélia.
The population structure of Phalloceros caudimaculatus was studied in a brook (sites A and B) existing in the CEDETEG - Guarapuava/PR. Fourteen length classes of 3 mm amplitude were defined for P. caudimaculatus. The widest length amplitude and the average and maximum sizes were observed in females. Females were significantly more predominant in the whole sample and more frequent in all length classes. The sexual proportion data, showed that the number of females was superior to that of males throughout most of the year. Young occurrence peaks were registered in November and March. Pregnant females were present from March to April, from July to August and in January, characterizing the reproductive season. At sampling site A, a higher occurrence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Ecology; Fresh-water.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300008

Cytochrome P450 detection in liver of the catfish Ancistrus multispinis (Osteichthyes, Loricariidae)
Provedor de dados: 52
Autores: Klemz,Claudio; Salvo,Ligia Maria; Bastos Neto,Jayme da Cunha; Bainy,Afonso Celso Dias; Assis,Helena Cristina da Silva de.
Sensitive biological responses to environmental contaminants are useful as early warning signals to predict the damages by long-term exposure. Protocols standardization to quantify biochemical parameters in different fish species is required to validate its use as biomarkers. Comparative studies from different fish species and its interpretation are a challenge for the validation of its use as general biomarkers, representative of environmental impact. In this study, the protocol for liver cytochrome P450 (CYP) analysis from the native Brazilian fish Ancistrus multispinis was established. The microsome contamination by hemoglobin during the analysis of CYP in liver was detected, leading to misinterpretation of the results. The spectrophotometric method for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytochrome P450; Fish; Ancistrus multispinis; Biomarker.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200015

Dietary utilisation of protein and energy from fresh and ensiled coffee pulp by the Nile tilapia, Oreochromis niloticus
Provedor de dados: 52
Autores: Moreau,Yann; Arredondo,Jose-Luis; Perraud-Gaime,Isabelle; Roussos,Sevastianos.
Dietary protein and energy utilisation of diets containing fresh and ensiled coffee pulp were studied on 3.2 ± 0.2 g Nile tilapia for 28 days. Diets formulation and feeding were designed on the basis of daily dietary protein and energy allowance. A control diet A (100 % protein and 100 % energy allowance) corresponding to 15 g CP kg-1 day-1 and 750 kJ kg-1 day-1, a low protein control diet B (80 % protein and 100 % energy allowance), two diets C and E (100 % protein and 100 % energy allowance) where 20 % of protein were supplied by coffee pulp, and two diets D and F with the same amount of coffee pulp than in C and E and supplementation in non-protein energy. Inclusion of coffee pulp in the diet strongly impaired growth and feed utilisation. Silage process...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffee pulp; Silage; Aquaculture; Cichlids; Feedstuff; Fish.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200014

Seminal analysis, cryogenic preservation, and fertility in matrinxã fish, Brycon cephalus (Günther, 1869)
Provedor de dados: 52
Autores: Ninhaus-Silveira,Alexandre; Foresti,Fausto; Veríssimo-Silveira,Rosicleire; Senhorini,José Augusto.
Aiming to improve fish reproduction techniques, the characterization and cryopreservation of semen of Brycon cephalus were performed. The seminal characteristics observed were: an almost transparent, milky semen with a mean volume of 4mL, and sperm concentration of 9.617±1.630 x 10(6) spermatozoa/mm³. Spermatozoa (length = 31.288 ±4.47µm) were of the aquasperm type and displayed a small, round head (length = 1.727 ±0.18 µm; width = 1.752 ±0.17µm) without acrosomal vesicle, nucleus with highly condensed chromatin forming coarse clots and centriolar complex located in the nuclear fossa; a midpiece (length = 2.561±0.44µm), narrowed rearward, with a cytoplasmic canal; and a flagellum (length = 29.521 ±4.37µm). Fertilization tests with thawed semen demonstrated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semen characteristics; Cryopreservation; Brycon cephalus; Ultrastructure; Fish.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000500015

Chromosomal differentiation between populations of Oligosarcus hepsetus (Teleostei, Characidae) from small tributaries at opposite margins of the Paraíba do Sul river (Brazil)
Provedor de dados: 52
Autores: Centofante,Liano; Bertollo,Luiz Antonio Carlos; Moreira-Filho,Orlando.
Cytogenetic analyses were carried out in two populations of Oligosarcus hepsetus from tributaries at opposite margins of the Paraíba do Sul river. The same diploid number was observed in both populations (2n=50), but they showed remarkable differences related to karyotype formula and distribution of rDNA sites as revealed by silver nitrate staining and in situ hybridization with 18S probes. The results suggested that the main channel of the Paraíba do Sul river acted as barrier to gene flow between populations.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Headstream; Cytogenetic; Differentiation.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700016

An ordination technique for fish diet comparisons
Provedor de dados: 52
Autores: Penczak,Tadeusz; Agostinho,Angelo A.; Hahn,Norma S.
The frequency of nine food types in the guts of 58 fish species from the Paraná River and its floodplain was compared using similarity definition. A synthetic table ordered on the basis of this definition, with fish species on axis y, and food types on axis x, enabled easy reading numerous kinds of information on feeding ecology of fish in the catchment. For example: 1) which fish species were generalists, specialists or opportunists, 2) those classified as herbivorous species consumed small amounts of animal food, 3) that fish consumed any food type that contained transformed solar energy and matter, 4) what are food preferences dependent on fish taxonomic affinity. The possibility of employing synthetic tables for investigating spatial and temporal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paraná River; Floodplain; Fish; Feeding; Similarity definition; Synthetic table.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100013

Selection of candidate fish species for farming in the bay of Guaratuba, Brazil
Provedor de dados: 52
Autores: Bouchereau,Jean-Luc; Chaves,Paulo T.; Albaret,Jean-Jacques.
An inventory of the maximum length (ML) reached by 57 species of fishes living in the mangrove of Guaratuba, Brazil, was undertaken with an aim to evaluate the relationship between the ecosystem and the size of individuals. For each of these species, the maximum length found in the region were compared with those available in existing literature. The majority of populations presented individuals whose length reached at least 40% than the known maximum length for the species, although only 19.3% were longer than 300mm in absolute value. Population of the other species were represented only by individuals either in their initial development phases, or reduced length as compared to the maximum length known elsewhere for the same species. In this mangrove,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Maximum length; Selection; Fish; Aquaculture; Mangrove.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100003

The mangrove as a temporary habitat for fish: the Eucinostomus Species at Guaratuba Bay, Brazil (25º 52'S;48º 39'W)
Provedor de dados: 52
Autores: Chaves,Paulo de Tarso C.; Otto,Gislaine.
Several coastal fish use the estuarine habitat during a part of their life cycle. These sites are considered good for the reproductive activity, as well as for the growth of larvae and juveniles. Concerning the Gerreidae, however, many studies reveal that most species leave the estuaries to reproduce at sea. At Guaratuba Bay, southern Brazil, this family is represented by three genera and five species, which make an important fraction of the local assemblage. The present study investigated the populational structure and breeding habits of three Eucinostomus species, in order to know what relationship exists between them and the mangrove. It was found that the Guaratuba mangrove represents a transitory habitat for the life cycle of the Eucinostomus species....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Gerreidae; Estuaries; Mangrove.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100009

Histopathological, immunohistochemical and ultraestructural evaluation of inflammatory response in Arius genus fish under experimental inoculation of BCG
Provedor de dados: 52
Autores: Sado,Ricardo Yuji; Matushima,Eliana Reiko.
The aim of this study was to evaluate the inflammatory response kinetics after experimental inoculation with BCG in the primitive Arius sp. fish. The BCG was applied through the intramuscular injection in the caudal peduncular region, and the samples were collected for the analyses at days 1, 3, 7, 14, 21, and 33 post-injection. Acute phase inflammatory infiltrate was characterized by the predominant mononuclear cells, intersticial edema, and muscular tissue necrosis. As the inflammatory response evolved, a large number of multinuclear giant cells were formed containing the BCG. These giant cells were positive for the S100 protein at the histochemical analysis, which demonstrate the macrofage activity, confirmed by the ultra-structural analysis showing the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Arius; Phylogeny; BCG; Inflammation; Giant cells.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500009

Hepatic Cytochrome P450 as Biomarkers of Cypermethrin Toxicity in Freshwater Teleost, Channa punctatus (Bloch)
Provedor de dados: 52
Autores: Bhutia,Dawa; Rai,Benoy Kishore; Pal,Joydeb.
In this study, Channa punctatus was treated with sub-lethal concentration of cypermethrin (6.6 µg/L) for 5, 10 and 15 days and its effect on total CYP 450 and the activity of hepatic CYP450 isoforms measured. Total CYP450 content and CYP1A mediated EROD activity was significantly induced (p&lt;0.05) in all three treated groups compared to control whereas only 15 days treated group showed significant induction in CYP2B mediated N,Ndimethylaniline demethylase activity. CYP2E1 mediated aniline hydroxylase activity showed only a marginal increase while there was inhibition of CYP3A4 mediated erythromycin demethylase activity. Liver somatic index (LSI) also showed a marginal increase in all the treated groups. Results showed differential induction of CYP1A,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cypermethrin; Cytochrome P450; Fish; Channa punctatus; Biomarker.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100131

Effects of the organophosphorous methyl parathion on the branchial epithelium of a freshwater fish Metynnis roosevelti
Provedor de dados: 52
Autores: Machado,Marcelo Rubens; Fanta,Edith.
Gills are vital structures for fish, since they are the main site for gaseous exchange as well as partially responsible for osmorregulation, acid-basic balance, excretion of nitrogenous compounds and taste. Chemicals in the water may alter the morphology of branchial cells of fish that are, therefore, a useful model for environmental impact and ecotoxicology studies. In order to investigate the effects of an organophosphorous compound, methyl parathion, on the gills of the fish, samples of Metynnis roosevelti were exposed to lethal (7ppm) and sublethal (1ppm) doses of Mentox 600 CE. Through light and scanning electron microscopy, shrinking of the branchial epithelium, followed by detachment and hyperplasia were observed. Externally, the branchial filaments...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gill; Fish; Methyl parathion; Toxicity; Morphology.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000300008

Effect of Heavy Metals on Liver, Kidney, Gills and Muscles of Cyprinus carpio and Wallago attu inhabited in the Indus
Provedor de dados: 52
Autores: Mahboob,Shahid; Kausar,Shazia; Jabeen,Farhat; Sultana,S.; Sultana,T.; Al-Ghanim,K.A.; Hussain,Bilal; Al-Misned,Fahad; Ahmed,Z.
ABSTRACT: The present study was aimed to evaluate the effect of heavy metals on an important tissue of two fish species Cyprinus carpio and Wallago attu, sampled from the Indus river, Mianwali District, Pakistan. The concentration of selected heavy metals Fe, Cr, Cu, and in gills, muscles, kidney and liver was compared with an International standard of food fish. The overall metal concentrations among different weight categories in C. carpio were in the order of Fe &gt; Cu &gt; Cr &gt;. In W. attu the overall accumulation of these metals were, in order of Fe &gt; Cu &gt; Cr &gt; Pb The order of accumulation of metals in gills and muscle of C. carpio was Fe &gt; Cr &gt; Pb &gt; Cu; kidney and muscles of W. attu was Fe &gt; Cr &gt; Cu &gt; Pb; liver Fe &gt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: River; Heavy metals; Fish; Weight; Pollution.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100334

Hematological parameters in Nile Tilápia, Oreochromis niloticus exposed to sub-letal concentrations of mercury
Provedor de dados: 52
Autores: Ishikawa,Nilton Massuo; Ranzani-Paiva,Maria José Tavares; Lombardi,Julio Vicente; Ferreira,Cláudia Maris.
Mercury toxicity in tilapia, Oreochromis niloticus, (Linnaeus, 1758) was investigated by the hematological parameters after long-term (14 days) exposure to various Hg concentrations (0.02, 0.002, 0.0002mg/L Hg). Test groups were set up with three replicates for each concentration, plus the control group. Blood samples were collected from six individuals for each concentration at 0, 3, 7, 10 and 14 days of exposure. The hematological parameters analyzed were: total red blood cell count (RBC), hemoglobin concentration (Hb), hematocrit (Ht), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), total white blood cell count (WBC) and differential leukocyte counts and total thrombocyte count (Tr)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mercury; Heavy metal pollution; Fish; Oreochromis niloticus; Hematology.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000400007

Habitat selection by fish in an artificial reef in Ilha Grande Bay, Brazil
Provedor de dados: 52
Autores: Brotto,Daniel Shimada; Araujo,Francisco Gerson.
The use of artificial structures as a shelter for fishes was evaluated aiming to assess increase in fish abundance in Ilha Grande Bay at Southeast Brazilian coast (Lat: 22°8'-23°5' S; Long. 44º05’-44º40’W). Five different types of structures, made of clay tiles, with an increase range on size and complexity were tested to assess their efficiency. Fish were counted in each type of structure from May-1996 to April-1997 by underwater observation made with snorkelling. According to the pattern of concentration in the structures, two groups of fishes were identified. One comprised by E. guaza, M. rubra, R. randalli, S. hispidus, Sphoeroides sp and Haemulun sp showed affinity for hard bottom, irregular profile and an increase in abundance on the more complex and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial Reefs; Brazil; Fish; Habitat selection.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000300015

Nictemeral variations for pacu Caranha, Piaractus mesopotamicus (Holmberg, 1887) culture in single - phase
Provedor de dados: 52
Autores: Barreto,Luiz Eduardo Guimarães de Sá; Igarashi,Marco Antonio; Hayashi,Carmino.
Studies related to nictemeral variation were executed in a fish growing pond, during all the seasons of the year, collecting data for dissolved oxygen; temperature; pH and electrical conductivity at the feeding channel on pond's surface, bottom and at streamlet bed. The results showed that Autumn was the season which had the lowest values of water temperature, the interval points, during Spring time, had superior average values of temperature when compared to the ones that were observed at external points. The lowest and highest index of pH were during Autumn season. The electrical conductivity didn't show significant differences during Autumn season. The samples obtained from the streamlet had very high significant differences with the samples of fish...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Grow-out; Rearing; Environment.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400017

Biochemical biomarkers of exposure to deltamethrin in freshwater fish, Ancistrus multispinis
Provedor de dados: 52
Autores: Assis,Helena Cristina da Silva de; Nicareta,Lilian; Salvo,Ligia Maria; Klemz,Claudio; Truppel,Jessé Henrique; Calegari,Rossana.
This study aimed to determine the effect of sublethal doses of deltamethrin, using biochemical biomarkers as activities of cholinesterase (ChE), ethoxyresorufin-O-deethylase (EROD) and the Na+K+- ATPase and levels of total cytochrome P450 (CYP450). Fishes received sublethal doses of deltamethrin and were sacrificed after 96 h of exposure. Samples of gills, heart, brain, liver and muscle were collected for enzymatic analyses. Deltamethrin inhibited the activity of the gills and heart Na+ K+-ATPase, induced the liver total CYP450, as well as the liver EROD activity. The activity of the ChE was not inhibited by deltamethrin. Deltamethrin altered the hepatic metabolism and the normal ionic flux in Ancistrus multispinis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Deltamethrin; Cytochrome P450; Fish; Ancistrus multispinis; Biomarker.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600012

Histological Alterations in Common Carp (Cyprinus carpio Linnaeus, 1758) Gills as Potential Biomarkers for Fungicide Contamination
Provedor de dados: 52
Autores: Stoyanova,Stela; Yancheva,Vesela Slavcheva; Velcheva,Iliana; Uchikova,Ekaterina; Georgieva,Elenka.
ABSTRACTThe present study aimed to investigate the histological alterations in common carp gills caused by a fosetyl-Al and fenamidone based fungicide tested in laboratory conditions at 30, 38 and 50 mg/L concentration. In general, all the tested concentrations activated compensatory-adaptive mechanisms, which caused pathological changes in the fish gills. Results showed different histological alterations in the gill structure, which included lamellar lifting, edema, proliferation of the glandular cells and epithelium, covering the gill filament, fusion and degenerative alterations. Blood circulatory system showed vasodilatation of the secondary lamellae and aneurysms. Overall, there was enhancement of the gill histological changes, which was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Histology; Fish; Gills; Pesticides; Contamination; Biomarkers.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000500757

Effects of food deprivation in muscle structure and composition of traíra (Hoplias malabaricus): potential implications on flesh quality
Provedor de dados: 52
Autores: Rios,Flavia Sant'Anna; Donatti,Lucélia; Fernandes,Marisa Narciso; Kalinin,Ana Lucia; Rantin,Francisco Tadeu.
Hoplias malabaricus (traíra) were experimentally starved (0 to 240 days) and subsequently re-fed for 30 days (after 90 and 240-d fasting). Long-term starvation produced minor changes in muscle composition, but shrinkage of muscle fibres was a conspicuous result. The diameter of muscle fibres decreased gradually and the spaces among them increased as the starvation period progressed. After re-feeding, fish prior starved for 90 days presented partial restoration on diameter of muscle fibres. However, the fibres remained shrunken after re-feeding following 240-d fasting. While the lipid content did not change, the protein levels fell after 240-d fasting, but they were restored after re-feeding
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Morphology; Muscle; Proximate composition; Starvation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200025

Stream-dwelling fish communities from an Atlantic rain forest drainage
Provedor de dados: 52
Autores: Mazzoni,Rosana; Fenerich-Verani,Nelsy; Caramaschi,Érica Pellegrini; Iglesias-Rios,Ricardo.
Twenty-two species were registered in the Ubatiba system with a predominance of Characiformes and Siluriformes followed by Cyprinodontiformes, Perciformes and Synbranchiformes. Among these species four were occasional with one or two sampled individuals and restricted to one or two of the nine studied sites; the other 18 species were constant with high densities in at least one site. Most of the sampled sites presented between 11 and 18 species, all largely distributed; except for the uppermost site, located right over a waterfall 4m high, which showed at least four species and for the confluence site that presented 18 species. Canonical Correspondence Analysis indicated that environmental variables explained a great part of the density and distribution...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal stream; Distribution; Community structure; Fish.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000300010

Effects of betaine on the growth of the fish piauçu, Leporinus macrocephalus
Provedor de dados: 52
Autores: Normandes,Edivaldo Bento; Barreto,Rodrigo Egydio; Carvalho,Robson Francisco; Delicio,Helton Carlos.
In this study was tested the effect of betaine on the growth performance of the piauçu fish. For this, twenty-one fish (mean ± SD: body weight: 14.9 ± 1.3 g) were randomly distributed in one out of three experimental treatments (n = 7 each; 1 fish/aquarium): without betaine added in the food (control); 3.6 g betaine/Kg of food; 7.1 g betaine/Kg of food. The fish were exposed to experimental conditions for 60 days. Fish presented significant growth throughout experimentation, but no statistically significant difference was found for any parameter analyzed among the treatments, except for condition factor, which was higher in control group than betaine ones. Accordingly, it was concluded that betaine had no enhancing effect on growth of piauçu.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth; Betaine; Fish; Feeding behavior.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600010

Diet of Iheringichthys labrosus (Pimelodidae, Siluriformes) in the Itaipu Reservoir, Paraná River, Brazil-Paraguay
Provedor de dados: 52
Autores: Abes,Sara da Silva; Agostinho,Angelo Antonio; Okada,Edson Kiyoshi; Gomes,Luiz Carlos.
Iheringichthys labrosus is a secondary commercial fish species in the Itaipu Reservoir, but it is important in other reservoirs of the basin. However, little information exists about this species in the literature. The purpose of this study was to describe the diet of this species in the Itaipu Reservoir. Stomachs of 306 fishes were analyzed, collected from October 1994 to September 1996 in the differents zones of the reservoir (according to a longitudinal gradient). The reservoir was separated into riverine (upper reach), transitional (middle reach), and lacustrine (next to the dam) zones. Main items in the diet of I. labrosus were aquatic insects (mainly Chironomidae) and mollusks (mainly Bivalvia). Their presence in the diet did not vary according to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Itaipu Reservoir; Freshwater; Fish; Feeding; Diet composition; Benthophagous.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000100014

Blood parameter analysis and morphological alterations as biomarkers on the health of Hoplias malabaricus and Geophagus brasiliensis
Provedor de dados: 52
Autores: Romão,Silvia; Donatti,Lucélia; Freitas,Matheus O.; Teixeira,Josiane; Kusma,Josiana.
This study aimed to assess the influence of the environment on fish health. Samples of Hoplias malabaricus and Geophagus brasiliensis, were collected from three different environments: area I was urban and areas II and III were rural. Analyses of red blood cell count, microhematocrit, hemoglobin concentration, white blood cell count and differential white cell count in blood smear were carried out. Mean corpuscular volume and mean corpuscular hemoglobin concentration were calculated. To analyze morphological alterations, gills, liver, kidney and gonads were submitted to routine histological processing. Individuals collected from area III had slightly lower blood indices than collected from area I . Severe kidney changes, degeneration of and crystallization...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Bioindicators; Biomarkers; Morphological alterations; Hematology.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000400012

Anticholinesterase effect of eserine (physostigmine) in fish and crustacean species
Provedor de dados: 52
Autores: Monserrat,José M.; Bianchini,Adalto.
The kinetic characteristic (Km) of cholinesterase from the crab Chasmagnathus granulata, the shrimp Farfantepenaeus paulensis and the fish Odontesthes bonaeriensis were compared and correlated with the anticholinesterasic effect of eserine (physostigmine). For the crustaceans, the estimated Km values were about 5-8 times higher than that estimated for the fish (0.04 mM). In the crab and the shrimp, the concentration of eserine which inhibited 50% of cholinesterase activity (IC50) was estimated as 5.33x10-4 and 4.33x10-4 mM, respectively. In both cases, it was significantly higher (P &lt; 0.05) than that estimated for the fish larvae (7.43x10-5 mM). A high Km could reflect a lower affinity of the cholinesterase for its natural substrate, acetylcholine, or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eserine; Physostigmine; Acetylcholinesterase; Fish; Silverside fish; Crustacean.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000100009

Diet of Astyanax species (Teleostei, Characidae) in an Atlantic Forest River in Southern Brazil
Provedor de dados: 52
Autores: Vilella,Fábio Silveira; Becker,Fernando Gertum; Hartz,Sandra Maria.
Feeding habits of six species of Astyanax from river Maquiné are described. Fishes were sampled bi-monthly from November/95 to September/96 in two zones of the river. Items were identified, counted and had their abundance estimated according to a semi-quantitative scale. Frequency of occurrence, alimentary importance index (IFI) values and a similarity analysis of diets for each species-river zone sample were examined. All the species were considered typically omnivorous, with insects and vegetal matter being the most important items in their diet. These species could act as seed dispersers, particularly for macrophytes. Intra-specific spatial differences were not observed in comparisons of samples from two diferent regions of the river, except for A....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Seed dispersal; Fish; Astyanax; Atlantic Forest; Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200015

Feeding ecology of stream-dwelling fishes from a coastal stream in the Southeast of Brazil
Provedor de dados: 52
Autores: Mazzoni,Rosana; Costa,Leandro Damião Soares da.
The relationship between ontogenetic variation of intestine length and feeding habits of five stream-dwelling fish species from the Ubatiba River were investigated. Analysed data were based on two size categories (juveniles and adults) and two food categories (animal and vegetal). Diet composition of each size category revealed that Astyanax janeiroensis and Geophagus brasiliensis changed food preference throughout ontogeny and switched from omnivorous/carnivorous to omnivorous/herbivorous and from omnivorous/carnivorous to omnivorous, respectively. These changes were followed by ontogenetic changes in the Intestinal Coefficient (IC). No ontogenetic differences were registered for IC and food categories consumed by Hoplias malabaricus but significant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Coastal stream; Feeding habit; Intestinal coefficient.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000400008

Longitudinal distribution of Hypostomus punctatus (Osteichthyes, Loricariidae) in a coastal stream from Rio de Janeiro, Southeastern Brazil
Provedor de dados: 52
Autores: Menezes,Márcia S. de; Caramaschi,Érica P.
Hypostomus punctatus was collected between June/1987 and July/1988, in three sampling stations with different features, along the Ubatiba stream (Maricá, Rio de Janeiro state). Sampling stations 2 and 3 were more similar (50% similarity) to each other. The species was frequent and persistent in all sampling stations. The size varied from 1.0 to 22.2 cm. The occurrence of different size classes along the stream was probably related to the kind of environment. Young forms prevailed in the total sample and were mainly collected next to the submersed riparian vegetation. Adults occurred just in sampling stations 1 and 2, and were found most often in rapids with rocky bottom, and in pools among submersed branches.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Hypostomus punctatus; Longitudinal distribution; Structure in size; Coastal streams.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000200013

Bacterial Community Associated with Fish and Water from Congonhas River, Sertaneja, Paraná, Brazil
Provedor de dados: 52
Autores: Sousa,José Américo de; Silva-Souza,Ângela Teresa.
A bacteriological study was conducted on fish and water from Congonhas River, Sertaneja (22º58’ S; 50º58’ W), Paraná State, Brazil. From 44% of the analysed fish, bacteria belonging to Pseudomonas, Acinetobacter, Aeromonas, Enterobacteriaceae, Micrococcus, Bacillus and Lactobacillus were isolated. The group most frequently isolated from fish was Aeromonas. In the water, the bacterial groups detected were Pseudomonas, Acinetobacter, Aeromonas, Enterobacteriaceae, Bacillus and Flavobacterium, from which Flavobacterium and Acinetobacter were the most abundant. The numbers of Colony Forming Units per millilitre of water varied from 3.1x10² to 1.0 x 10³. Although a clear pattern was not detected in the susceptibilities/resistances of the isolated strains to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial community; Fish; Congonhas River; Aeromonas; Pseudomonas; Resistance.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000400007

Changes in the diet composition of transitory fishes in coastal systems, estuary and continental shelf
Provedor de dados: 52
Autores: Chaves,Paulo T. C.; Umbria,Simone C.
The feeding habits of five species of teleosts in the southern coast of Brazil were analyzed comparatively between estuary and continental shelf. The displacement between the two sites caused expressive qualitative alterations, the proportion of different items varying from 50% in the diet of Micropogonias furnieri to 89% in Isopisthus parvipinnis. In the group of species, 57% of the items were exclusive to one of the environments and, within the three most common items in the estuary - fish, Polychaeta and plants, only the former was also among the most common items in the shelf. In spite of these differences, the high spectrum of items in both environments and the nature of the item that was most consumed in each one, indicate that there was a certain...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Fish; Estuary; Continental Shelf; Brazil.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100007

Food passage time through the alimentary tract of a brazilian teleost fish, Prochilodus scrofa (Steindachner, 1881) using radiography
Provedor de dados: 62
Autores: BARBIERI,Renato Lamounier; LEITE,Rodolpho Guião; STERMAN,Franklin de Almeida; HERNANDEZ-BLAZQUEZ,Francisco Javier.
Food passage time through the digestive tract of a detritivorous freshwater fish (Prochilodus scrofa) was determinate by radiographic techniques using barium sulfate as a contrast medium. The fish were kept in tanks at a constant temperature of 23.5ºC and received by an oral catheter a mixture of 2.5 parts of ground ration and 1 part of oral suspension of contrast medium (Celobar). Radiographs were taken at intervals of 3 hours. Immediately after the introduction of the mixture the stomach was outlined by the contrast. A sphincter was observed between the cardiac and the muscular stomachs. After 3 hours, 80 per cent of the proximal intestine was filled. After 6 hours the contrast reached the proximal, medial and distal portions of the intestine. After 9...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intestine; Digestive system; Radiography; Fish.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961998000100006

Characterization of the fishes and of subsistence fishing in the Pantanal of Mato Grosso, Brazil
Provedor de dados: 57
Autores: OLIVEIRA,R. D. de; NOGUEIRA,F. M. de B.
Fishing is one of the oldest human activities in the Pantanal of Mato Grosso in Central Brazil. In the of Bento Gomes River Basin (Pantanal of Poconé) the presence of fishermen is very common. The objective of this study is to describe the fishing activity in the basin in view of the elaboration of proposals for the sustainable use of this natural resource. Of the 256 fishermen that were registered most are fishing for their subsistence (92%) and the rest (8%) are occasional fishermen (locally called "de lufada" fishermen). "Traíra" (Hoplias gr. malabaricus) and "piranhas" (Serrasalmus marginatus, Serrasalmus spilopleura and Pygocentrus nattereri) were the species most frequently captured for human consumption. The fishing is more intensive during the ebb...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pantanal of Mato Grosso; Fish; Subsistence fishing.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000300008

Monoterpenoids (thymol, carvacrol and S-(+)-linalool) with anesthetic activity in silver catfish (Rhamdia quelen): evaluation of acetylcholinesterase and GABAergic activity
Provedor de dados: 56
Autores: Bianchini,A.E.; Garlet,Q.I.; da Cunha,J.A.; Bandeira Junior,G.; Brusque,I.C.M.; Salbego,J.; Heinzmann,B.M.; Baldisserotto,B.
This study evaluated the anesthetic potential of thymol and carvacrol, and their influence on acetylcholinesterase (AChE) activity in the muscle and brain of silver catfish (Rhamdia quelen). The AChE activity of S-(+)-linalool was also evaluated. We subsequently assessed the effects of thymol and S-(+)-linalool on the GABAergic system. Fish were exposed to thymol and carvacrol (25, 50, 75, and 100 mg/L) to evaluate time for anesthesia and recovery. Both compounds induced sedation at 25 mg/L and anesthesia with 50–100 mg/L. However, fish exposed to carvacrol presented strong muscle contractions and mortality. AChE activity was increased in the brain of fish at 50 mg/L carvacrol and 100 mg/L thymol, and decreased in the muscle at 100 mg/L carvacrol....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: AChE; Anesthesia; Benzodiazepine; Fish; GABAA; Terpenoids.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200610

Influence of season and pollution on the antioxidant defenses of the cichlid fish acará (Geophagus brasiliensis)
Provedor de dados: 56
Autores: Wilhelm Filho,D.; Torres,M.A.; Tribess,T.B.; Pedrosa,R.C.; Soares,C.H.L.
The livers of Geophagus brasiliensis collected from both a non-polluted site and a polluted site were analyzed for different antioxidant defenses, O2 consumption, thiobarbituric acid-reactive substance (TBARS) levels, and histological damage. Compared to controls (116.6 ± 26.1 nmol g-1), TBARS levels were enhanced at the polluted site (284.2 ± 25.6 nmol g-1), as also was oxygen consumption (86.6 ± 11.3 and 128.5 ± 9.8 µmol O2 min-1 g-1, respectively). With respect to enzymatic antioxidants, increased catalase activities (8.7 ± 1.3 and 29.2 ± 2.4 mmol min-1 g-1, respectively), unchanged superoxide dismutase activities (767.2 ± 113.3 and 563.3 ± 70.2 U g-1, respectively), and diminished glutathione S-transferase activities (29.0 ± 3.2 and 14.9 ± 3.2 µmol...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oxyradicals; Antioxidant defenses; Fish; Acará; Season; Pollution; Adaptation.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600004

Increased immunoglobulin production in silver catfish (Rhamdia quelen) exposed to agrichemicals
Provedor de dados: 56
Autores: Kreutz,L.C.; Pavan,T.R.; Alves,A.G.; Correia,A.G.; Barriquel,B.; dos Santos,E.D.; Barcellos,L.J.G.
Fish vaccination has been increasingly exploited as a tool to control pathogen infection. The production of immunoglobulin following vaccination might be affected by several factors such as management procedures, water temperature, and the presence of xenobiotics. In the present study, we aimed to investigate the kinetics of immunoglobulin production in silver catfish (Rhamdia quelen) inoculated with inactivated Aeromonas hydrophila and kept at two different water temperatures (17.4±0.4° or 21.3±0.3°C). The effect of a second antigen inoculation and exposure of fish to sublethal concentrations of the herbicides atrazine and glyphosate at 10% of the lethal concentration (LC50-96h) on specific serum antibodies were also investigated. Antibodies to A....
Palavras-chave: Fish; Humoral response; Antibody production; Herbicides; Adjuvant.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000600499

Effect of hypoxia on the activity and binding of glycolytic and associated enzymes in sea scorpion tissues
Provedor de dados: 56
Autores: Lushchak,V.I.; Bahnjukova,T.V.; Storey,K.B.
The effect of hypoxia on the levels of glycogen, glucose and lactate as well as the activities and binding of glycolytic and associated enzymes to subcellular structures was studied in brain, liver and white muscle of the teleost fish, Scorpaena porcus. Hypoxia exposure decreased glucose levels in liver from 2.53 to 1.70 µmol/g wet weight and in muscle led to its increase from 3.64 to 25.1 µmol/g wet weight. Maximal activities of several enzymes in brain were increased by hypoxia: hexokinase by 23%, phosphoglucoisomerase by 47% and phosphofructokinase (PFK) by 56%. However, activities of other enzymes in brain as well as enzymes in liver and white muscle were largely unchanged or decreased during experimental hypoxia. Glycolytic enzymes in all three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Sea scorpion; Scorpaena porcus; Hypoxia; Metabolites; Glycolytic enzyme binding.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000800005

Electrolocation-communication discharges of the fish Gymnotus carapo L. (Gymnotidae: Gymnotiformes) during behavioral sleep
Provedor de dados: 56
Autores: Stopa,R.M.; Hoshino,K.
Technical problems have hampered the study of sleep in teleosts. The electrical discharges of Gymnotus carapo L. (Gymnotidae: Gymnotiformes) were monitored to evaluate their ease and reliability as parameters to study sleep. The discharges were detected by electrodes immersed in a glass aquarium and were recorded on a conventional polygraph. G. carapo showed conspicuous signs of behavioral sleep. During these periods, opercular beat rates were counted, electric discharges recorded, and the "sharp discharge increase" (SDI) of the orienting reflex was investigated. All 20 animals monitored maintained electrical discharges during behavioral sleep. The discharge frequencies during sleep (50.3 ± 10.4 Hz) were not significantly different from those observed when...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Sleep; Fish; Electric discharges; Cannibalism; Antipredation mechanism.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001000008

Fish hemoglobins
Provedor de dados: 56
Autores: Souza,P.C. de; Bonilla-Rodriguez,G.O.
Vertebrate hemoglobin, contained in erythrocytes, is a globular protein with a quaternary structure composed of 4 globin chains (2 alpha and 2 beta) and a prosthetic group named heme bound to each one. Having myoglobin as an ancestor, hemoglobin acquired the capacity to respond to chemical stimuli that modulate its function according to tissue requirements for oxygen. Fish are generally submitted to spatial and temporal O2 variations and have developed anatomical, physiological and biochemical strategies to adapt to the changing environmental gas availability. Structurally, most fish hemoglobins are tetrameric; however, those from some species such as lamprey and hagfish dissociate, being monomeric when oxygenated and oligomeric when deoxygenated. Fish...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemoglobins; Fish; Root effect; Bohr effect.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000600004

Antibody response in silver catfish (Rhamdia quelen) immunized with a model antigen associated with different adjuvants
Provedor de dados: 56
Autores: Pavan,T.R.; Di Domenico,J.; Kirsten,K.S.; Nied,C.O.; Frandoloso,R.; Kreutz,L.C.
Adjuvants are essential to boost the immune response to inoculated antigen and play a central role in vaccine development. In this study, we investigated the efficacy of several adjuvants in the production of anti-bovine serum albumin (BSA) antibodies in silver catfish. Two hundred and seventy juvenile silver catfish (60–80 g) of both sexes were intraperitoneally vaccinated with BSA (200 µg/fish) alone or mixed to the following adjuvants: Freund’s complete adjuvant (FCA), Freund’s incomplete adjuvant (FIA), aluminum hydroxide (AlOH), Montanide, four types of cytosine-phosphate-guanine (CpG) oligodeoxynucleotides (ODNs) and three concentrations of β-glucan, and the immune enhancing property was evaluated by measuring anti-BSA antibodies in blood samples at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vaccination; Fish; Immune response; CpGs ODN; Β-glucan.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000800606

Effect of dietary (n-3) highly unsaturated fatty acids on growth and survival of fat snook (Centropomus parallelus, Pisces: Centropomidae) larvae during first feeding
Provedor de dados: 56
Autores: Seiffert,M.E.B.; Cerqueira,V.R.; Madureira,L.A.S.
The effect of rotifers, Brachionus rotundiformis (S-type), fed three different diets: A (rotifer fed Nannochloropsis oculata), B (rotifer fed N. oculata and baker's yeast, 1:1), and C (rotifer fed N. oculata and baker's yeast, 1:1, and enriched with Selco&lt;FONT FACE="Symbol"&gt;â&lt;/FONT&gt;), was evaluated based on the survival, growth and swim bladder inflation rate of fat snook larvae. Rotifers of treatment A had higher levels (4.58 mg/g dry weight) of eicosapentaenoic acid (EPA) than B (1.81 mg/g dry weight), and similar levels (0.04 and 0.06 mg/g dry weight, respectively) of docosahexaenoic acid (DHA). Rotifers of treatment C had the highest levels of EPA (13.2 mg/g dry weight) and DHA (6.08 mg/g dry weight). Fat snook eggs were obtained by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Larvae; Centropomus parallelus; Feeding; Highly unsaturated fatty acid.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000500013

Karyological, biochemical, and physiological aspects of Callophysus macropterus (Siluriformes, Pimelodidae) from the Solimões and Negro Rivers (Central Amazon)
Provedor de dados: 56
Autores: Ramirez-Gil,H.; Feldberg,E.; Almeida-Val,V.M.F.; Val,A.L.
Karyological characteristics, i.e., diploid number, chromosome morphology and nucleolus organizer regions (NORs), biochemical characteristics, i.e., electrophoretic analysis of blood hemoglobin and the tissue enzymes lactate dehydrogenase (LDH), malate dehydrogenase (MDH), alcohol dehydrogenase (ADH), and phosphoglucose isomerase (PGI), and physiological characteristics, i.e., relative concentration of hemoglobin and intraerythrocytic concentrations of organic phosphates were analyzed for the species Callophysus macropterus collected from Marchantaria Island (white water system - Solimões River) and Anavilhanas Archipelago (black water system - Negro River). Karyological and biochemical data did not reveal significant differences between specimens...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callophysus; Fish; Amazon; Population genetics; Adaptation.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001100014

Restriction site heteroplasmy in the mitochondrial DNA of Brycon opalinus (Cuvier, 1819) (Characiformes, Characidae, Bryconiae)
Provedor de dados: 56
Autores: Hilsdorf,A.W.S.; Krieger,J.E.
Homoplasmy is a feature usually found in the mtDNA of higher animal taxa. On the other hand, the presence of two classes of mtDNA in the same cell or organism is rare and may appear in length or site variation. Data from mtDNA RFLP analysis of Brycon opalinus populations (Cuvier, 1819; Characiformes, Characidae, Bryconinae) revealed site heteroplasmy from endonuclease NheI digestion. Southern blotting hybridization was used to survey a total of 257 specimens with 24 restriction enzymes. Three different restriction fragment patterns of mtDNA were obtained from NheI digestion. Two individuals from hatchery broodstock were found to have two of them. NheI digests of heteroplasmic individuals yielded two fragments of approximately 1180 and 1260 bp. Despite the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Restriction enzymes; Broodstock; Fish.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000300003

Evaluation of the addition of ascorbic acid to the ration of cultivated Piaractus mesopotamicus (Characidae) on the infrapopulation of Anacanthorus penilabiatus (Monogenea)
Provedor de dados: 56
Autores: Martins,M.L.
Sixty Piaractus mesopotamicus Holmberg, 1887 (pacu) fry fed a diet containing 0, 50, 100 and 200 mg ascorbic acid/kg dry feed were studied to evaluate the effect on parasitic infestation by the monogenean Anacanthorus penilabiatus Boeger, Husak and Martins, 1995 (Monogenea: Dactylogyridae) for a period of 24 weeks. The temperature of the aquaria was measured daily and remained between 28 and 31oC. At the beginning of the experiment, fish showed 6.15 ± 0.33 cm standard length and 8.64 ± 1.62 g average body weight. A sample of fish was examined and showed 43 ± 17 monogeneans per fish. At the end of the experiment, the gills of control and vitamin C-treated fish were collected for parasite counts. Control fish had 42.5 parasites per fish, a significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascorbic acid; Monogenean; Anacanthorus penilabiatus; Infestation; Fish; Piaractus mesopotamicus.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000500008

Eye color as an indicator of social rank in the fish Nile tilapia
Provedor de dados: 56
Autores: Volpato,G.L.; Luchiari,A.C.; Duarte,C.R.A.; Barreto,R.E.; Ramanzini,G.C.
We investigated the association of eye color with the dominant-subordinate relationship in the fish Nile tilapia, Oreochromis niloticus. Eye color pattern was also examined in relation to the intensity of attacks. We paired 20 size-matched fish (intruder: 73.69 ± 11.49 g; resident: 75.42 ± 8.83 g) and evaluated eye color and fights. These fish were isolated in individual aquaria for 10 days and then their eye color was measured 5 min before pairing (basal values). Twenty minutes after pairing, eye color and fights were quantified for 10 min. Clear establishment of social hierarchy was observed in 7 of 10 pairs of fish. Number of attacks ranged from 1 to 168 among pairs. The quartile was calculated for these data and the pairs were then divided into two...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Aggression; Eye color; Social hierarchy; Social stress; Fish; Oreochromis niloticus.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001200007

Environmental color affects Nile tilapia reproduction
Provedor de dados: 56
Autores: Volpato,G.L.; Duarte,C.R.A.; Luchiari,A.C.
We investigated the effects of environmental color on the reproductive behavior of Nile tilapia, Oreochromis niloticus. Two environmental colors were tested by covering the aquarium (60 x 60 x 40 cm) with white (12 groups) or blue (13 groups) cellophane and observing reproductive behavior in groups of 2 males (10.27 ± 0.45 cm) and 3 females (10.78 ± 0.45 cm) each. After assignment to the respective environmental color (similar luminosity = 100 to 120 Lux), the animals were observed until reproduction (identified by eggs in the female's mouth) or up to 10 days after the first nest building. Photoperiod was from 6:00 h to 18:00 h every day. Food was offered in excess once a day and water quality was similar among aquaria. Daily observations were made at...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Reproduction; Environmental color; Fish; Nile tilapia; Oreochromis niloticus.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000400004

Different biochemical strategies of two Neotropical fish to cope with the impairment of nitrogen excretion during air exposure
Provedor de dados: 56
Autores: Polez,V.L.P.; Moraes,G.; Santos Neto,C.
The exposure of fish to air is normally expected to interfere with the nitrogen excretion process. Hoplias malabaricus and Hoplerythrinus unitaeniatus, two teleost species, display distinct behaviors in response to decreases in natural reservoir water levels, although they may employ similar biochemical strategies. To investigate this point, plasma levels of ammonia, urea, uric acid, and the two urea cycle enzymes, ornithine carbamoyl transferase (OCT) and arginase (ARG), as well as glutamine synthetase (GS) were determined for both species after exposure to air. Plasma ammonia increased gradually during exposure to air, but only H. malabaricus showed increased concentrations of urea. Plasma uric acid remained very low in both fish. Enzymatic activities...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hoplias malabaricus; Hoplerythrinus unitaeniatus; Fish; Urea cycle enzymes; Biochemical adaptation; Air exposure.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000200017

Antibacterial activity of plant extracts from Brazil against fish pathogenic bacteria
Provedor de dados: 58
Autores: Castro,S.B.R.; Leal,C.A.G.; Freire,F.R.; Carvalho,D.A.; Oliveira,D.F.; Figueiredo,H.C.P.
The aim of this work was to evaluate the antibacterial activity of Brazilian plants extracts against fish pathogenic bacteria. Forty six methanolic extracts were screened to identify their antibacterial properties against Streptococcus agalactiae, Flavobacterium columnare and Aeromonas hydrophila. Thirty one extracts showed antibacterial activity.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant extracts; Bacteria; Fish.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400030

Hematology and productive performance of nile tilapia (Oreochromis niloticus) naturally infected with Flavobacterium columnare
Provedor de dados: 58
Autores: Sebastião,F. A; Nomura,D; Sakabe,R; Pilarski,F.
Columnaris disease is one of the main causes of mortality in tilapia rearing and is responsible for large economic losses worldwide. Hematology is a tool that makes it possible to study organisms' physiological responses to pathogens. It may assist in making diagnoses and prognoses on diseases in fish populations. The hematological variables of nile tilapia were studied in specimens with a clinical diagnosis of columnaris disease and in specimens that were disease-free. The total erythrocyte count, hemoglobin rate, hematocrit percentage, mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), mean corpuscular volume (MCV), organic defense blood cell percentages (leukocytes and thrombocytes) and hepatosomatic and splenosomatic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Bacteria; Hematology; Productive performance.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100036

Shigatoxigenic and atypical enteropathogenic Escherichia coli in fish for human consumption
Provedor de dados: 58
Autores: Cardozo,Marita Vedovelli; Borges,Clarissa Araújo; Beraldo,Lívia Gerbasi; Maluta,Renato Pariz; Pollo,Andressa Souza; Borzi,Mariana Monezi; dos Santos,Luis Fernando; Kariyawasam,Subhashinie; Ávila,Fernando Antônio de.
ABSTRACT Shigatoxigenic and enteropathogenic Escherichia coli with virulence and multidrug resistance profile were isolated from Nile tilapia. This study finding is of great importance to public health because they help understand this pathogen epidemiology in fish and demonstrate how these animals can transmit E. coli related diseases to humans.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: EPEC; Fish; MLST; STEC; Virulence genes.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000400936

New host record of five Flavobacterium species associated with tropical fresh water farmed fishes from North India
Provedor de dados: 58
Autores: Verma,Dev Kumar; Rathore,Gaurav.
Abstract Yellow pigmented, filamentous, Gram-negative bacteria belonging to genus Flavobacterium are commonly associated with infections in stressed fish. In this study, inter-species diversity of Flavobacterium was studied in apparently healthy freshwater farmed fishes. For this, ninety one yellow pigmented bacteria were isolated from skin and gill samples (n = 38) of three farmed fish species i.e. Labeo rohita, Catla catla and Cyprinus carpio. Among them, only twelve bacterial isolates (13.18%) were identified as Flavobacterium spp. on the basis of morphological, biochemical tests, partial 16S rDNA gene sequencing and phylogenetic analysis. On the basis of 16S rDNA gene sequencing, all the 12 isolates were 97.6-100% similar to six different formally...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavobacterium; Fish; Species diversity; 16S rDNA; Phylogenetic analysis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000400969

Composition of Extracellular Polymeric Substances (EPS) produced by Flavobacterium columnare isolated from tropical fish in Brazil
Provedor de dados: 58
Autores: Sebastião,Fernanda de Alexandre; Pilarski,Fabiana; Lemos,Manoel Victor Franco.
Thirty nine isolates of Flavobacterium columnare from Brazilian fish farms had their carbohydrate composition of EPS evaluated by high efficiency liquid chromatography, using the phenol-sulfuric acid method of EPS. The occurrence of capsules on F. columnare cells was not directly related to biofilm formation, and the predominant monosaccharide is glucose.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biofilm; Extracellular polymeric substances; Flavobacterium columnare; Fish.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300030

Quantitative evaluation of Listeria monocytogenes in fresh and processed surubim fish (Pseudoplatystoma sp)
Provedor de dados: 58
Autores: Souza,V.M. de; Alves,V.F.; Destro,M.T.; De Martinis,E.C.P.
L. monocytogenes is a foodborne psychrotrophic bacterial pathogen of special importance for minimally processed foods. In this work, it was enumerated in samples of surubim fish by MPN technique. The population of L. monocytogenes was estimated as &lt; 0.012 MPN/cm² in fresh and &lt; 0.03 MPN/g in minimally processed fish.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Listeria monocytogenes; MPN; Fish; Surubim.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300023

Microbiological quality of salmon (Salmo salar) sold in cities of the state of São Paulo, Brazil
Provedor de dados: 58
Autores: Nespolo,Natália Maramarque; Martineli,Thaís Mioto; Rossi Jr.,Oswaldo Durival.
The present paper evaluated the microbiology of salmon by quantifying mesophilic heterotrophic microorganisms, total and thermotolerant coliforms, and the presence of Vibrio parahaemolyticus, Staphylococcus aureus, Salmonella sp., Escherichia coli and Aeromonas sp. in the meat. This study can provide technical support for the suggestion of a new regulation of a Brazilian legislation through specific microbiological standards concerning the consumption of raw fish. A number of 31 (16 cooled and 15 frozen) samples of salmon were collected in the retail market network of a few cities in the State of São Paulo, Brazil. Results presented populations of mesophilic heterotrophic microorganisms ranging from 1.0 x 10 and 3.9 x 10(6) CFU/g, total and thermotolerant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Salmon; Microbiology; Pathogenic bacteria.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400021

Biofilm formation by Vibrio parahaemolyticus on different surfaces and its resistance to sodium hypochlorite
Provedor de dados: 65
Autores: Rosa,Janaina Viana da; Conceição,Natália Volpato da; Conceição,Rita de Cássia dos Santos da; Timm,Cláudio Dias.
ABSTRACT:  Vibrio parahaemolyticus is an important pathogen for both fish industry and consumers. It forms biofilm which makes it difficult to eliminate this microorganism using sanitizers. This study aimed to assess biofilm formation on different surfaces and effect of biofilm on resistance to sanitizers. Eight isolates of biofilm-forming V. parahaemolyticus were tested for the ability to form biofilms on a number of surfaces including high density polyethylene, stainless steel, glass, exoskeleton of Farfantepenaeus paulensis (Pink Shrimp), and operculum of Micropogonias furnieri (Whitemouth Croaker). Efficiency of sanitizer sodium hypochlorite against the bacteria was evaluated in the biofilms formed on the surface of the materials used; out the eight...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial contamination; Sanitizers; Food safety; Fish; Shrimp.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001200451

NPY and sbGnRH gene expression in juvenile and adult male Brazilian flounder Paralichthys orbignyanus
Provedor de dados: 65
Autores: Campos,Vinicius Farias; Collares,Tiago Veiras; Seixas,Fabiana Kömmling; Deschamps,João Carlos; Marins,Luis Fernando Fernandes; Okamoto,Marcelo Hideo; Sampaio,Luís André Nassr; Robaldo,Ricardo Berteaux.
The objective of this study was to evaluate neuropeptide Y (NPY) and sea bream gonadotropin-release hormone (sbGnRH) gene expression in juvenile and adult males of Brazilian flounder. Hypothalamuses from fish were sampled for total RNA extraction. After cDNA synthesis, real-time PCR was used to measure gene expression. NPY showed approximately 2-fold increases in their mRNA levels while sbGnRH showed 3-fold increases in adult fish. These results suggest that these peptides could be involved on hypothalamic regulation of Brazilian flounder sexual maturation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sexual maturation; Fish; Pleuronectiformes; MRNA.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001100013

Dietary protein levels in Piaractus brachypomus submitted to extremely acidic or alkaline pH
Provedor de dados: 65
Autores: Garcia,Luciano de Oliveira; Gutiérrez-Espinosa,Mariana; Wásquez-Torres,Walter; Baldisserotto,Bernardo.
The objective this study was to evaluate the effects of dietary protein levels in pirapitinga, Piaractus brachypomus, submited to extremely acidic or alkaline pH. Juveniles were fed for 20 days with three diets with different crude protein (CP) levels (25.3, 32.4 and 40.0%) and then separated in five groups (n=10, three replicates each) which were kept in 60 L aquaria and exposed to pH 3.0, 3.5, 7.0, 10, or 10.5. Fish were removed from aquaria when they showed loss of swimming balance, and then blood was collected and plasma separated for measurement of Na+, Cl- and K+ levels. The increase of dietary protein levels (up to 40.0% CP) provided some protection for pirapitinga at pH 3.5 or 10.0 because the time to lose equilibrium increased after acute...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pirapitinga; Fish; Ionoregulation; Extreme pH.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000200017

Oxidative stability during frozen storage of fillets from silver catfish (Rhamdia quelen ) sedated with the essential oil of Aloysia triphylla during transport
Provedor de dados: 65
Autores: Daniel,Ana Paula; Ferreira,Lauren Fresinghelli; Klein,Bruna; Ruviaro,Amanda Roggia; Quatrin,Andréia; Parodi,Thaylise Vey; Zeppenfeld,Carla Cristina; Heinzmann,Berta Maria; Baldisserotto,Bernardo; Emanuelli,Tatiana.
ABSTRACT: This research aimed to evaluate whether the essential oil of Aloysia triphylla (EOAT) used in vivo as a sedative in the water for transporting fish could increase the oxidative stability of silver catfish (Rhamdia quelen) fillets during frozen storage. The chemical composition of EOAT and of fillets from fish exposed to EOAT (0, 30 or 40µL L-1) were assessed. The pH and lipid oxidation parameters (conjugated dienes, CD; thiobarbituric acid-reactive-substances, TBARS) were evaluated in the fillets throughout the storage period (-18±2oC/17 months). The main compounds found in EOAT were α- and β-citral. Treatment with EOAT did not modify the proximate composition of the fillets, but 40µL L-1 EOAT reduced pH levels when compared to the control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lipid oxidation; Transport; Fish; TBARS; Natural anesthetic.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300560

Probiotic supplementation in diet and vaccination of hybrid surubim (Pseudoplatystoma reticulatum♀ x P. corruscans♂)
Provedor de dados: 65
Autores: Pereira,Gabriella do Vale; Jesus,Gabriel Fernandes Alves; Vieira,Felipe do Nascimento; Pereira,Scheila Anelise; Ushizima,Thiago Tetsuo; Mouriño,José Luiz Pedreira; Martins,Maurício Laterça.
ABSTRACT: A supplementary diet with the probiotic bacteria Weissella cibaria on the efficacy of surubim hybrid immunization against a specific hemorrhagic septicemia caused by Aeromonas hydrophila was evaluated on the following treatments: fish fed a supplemented probiotic diet, vaccinated fish and vaccinated fish fed a supplemented probiotic diet, and untreated fish (control). Fish from the probiotic treatments were fed a diet containing W. cibaria for 41 days. On the 15th day of the experiment, fish from vaccine treatments were intraperitoneally vaccinated, with posterior oral booster for four days. One week after the oral booster, three fish from each experimental unit were sampled. The probiotic supplementation increased the number of thrombocytes and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Vaccine; Lactic acid bacteria; Aeromonas hydrophila.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000200348

Levamisole on the biochemical and hematological responses to parasitism by monogenoids in dog snapper
Provedor de dados: 65
Autores: Oliveira,Bruno De Laquila; Souza,Rodrigo Matos de; Silva Filho,Jorge Pinto da; Ribeiro,Halysson Pena; Fioresi,Deusélio Bassini; Gomes,Levy de Carvalho; Fernandes,Luiz Fernando Loureiro.
ABSTRACT:  The response of biochemical and hematological parameters were analyzed in dog snapper (Lutjanus jocu) grown in net cages, as well as for the specimens kept in the laboratory during an infestation by Neobenedenia melleni, and after treatment with freshwater bath and injectable application of levamisole. Significant changes were observed in N. melleni parasitized individuals, characterized by increased glucose and lactate levels, as well as a significant fish hematocrit reduction and leukocyte increase. Treatment with freshwater baths, concomitant with injectable levamisole application, showed therapeutic efficacy in several parameters after 14 days of treatment.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Biochemistry; Hematology; Neobenedenia melleni; Fish.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000900501

Glyphosate on digestive enzymes activity in piava (Leporinus obtusidens)
Provedor de dados: 65
Autores: Salbego,Joseânia; Pretto,Alexandra; Silva,Vera Maria Machado da; Loro,Vania Lucia; Lazzari,Rafael; Gioda,Carolina Rosa; Baldisserotto,Bernardo.
The effects of glyphosate, a nonselective herbicide (1.0 or 5.0mg L-1) on digestive enzymes activity (stomach and intestine) were evaluated in juveniles of piava (Leporinus obtusidens) after 90 days of exposure. The activity of acid protease, trypsin, chymotrypsin and amylase increased with the increase of glyphosate concentration. These results indicate that glyphosate affects digestive enzyme activities in this species, and may be an indicator of poor nutrient availability when fish survive in herbicide-contaminated water.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Herbicide; Acid protease; Amylase; Trypsin.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000901603

Deposition of bodily chemical components in the carcass of tilapia (Oreochromis sp.) strains
Provedor de dados: 64
Autores: Allaman,Ivan Bezerra; Reis Neto,Rafael Vilhena; Freitas,Rilke Tadeu Fonseca de; Rosa,Priscila Vieira; Lago,Aline de Assis; Costa,Adriano Carvalho.
The knowledge of how animals deposited chemical components as water, protein, fat and ash in the carcass is importance for the formulation of a balanced diet, allowing maximum performance with a low environmental impact. So, the study was carried out to evaluate the influence of different tilapia strains (Chitralada, Commercial, Red and Universidade Federal de Lavras [UFLA]) on the deposition of bodily chemical components in the carcass. The bodily components analyzed were water, protein, fat and ash. For the determination of the bodily chemical deposition curves by age, the exponential, Brody, logistic, Gompertz and von Bertalanffy models were adjusted. The Commercial and UFLA strains deposited water at a faster speed (P&lt;0.05) compared with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bodily components; Nonlinear models; Fish; Growth.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500008

Effect of the ration processing on the apparent digestibility values of nutrients for the piau (Leporinus elongatus)
Provedor de dados: 64
Autores: Logato,Priscila Vieira Rosa; Albernaz,Norka da Silva; Ribeiro,Paula Adriane Perez; Freitas,Rilke Tadeu Fonseca de; Fialho,Elias Tadeu.
The experiment carried out at National Center for Research in Tropical Fish Pirassununga, SP, aiming to determine the effect of the ration processing on the apparent digestibility coefficients of the ingredients for the piau (L. elongatus). A total of 600 males of piau were utilized, allotted into six ponds of 300L. The applied treatments were: grinder processed ration, pelleting ration and extruded ration, utilizing rations with 32% crude protein and 3400 Kcal DE.Kg-1. The experiment was in a randomized blocks design with three treatments, three blocks and two replicates. The data were submitted to variance analysis by the SAEG computational package and the means of the treatments compared by SNK test (5% of significance). The results showed that there...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding; Fish; Ingredients; Nutrition.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000300032

Effect of photoperiod stress assessment and locomotor activity of female lambari (Astyanax bimaculatu)
Provedor de dados: 64
Autores: Navarro,Fernanda Keley Silva Pereira; Navarro,Rodrigo Diana; Murgas,Luis David Solis; Felizardo,Viviane de Oliveira.
Some studies and scientific investments have been done in aquaculture aiming to minimize the stress of the fish due to different factors, as management, nutritional status, water quality, temperature, photoperiod, and salinity. This study aimed to verify the effect of photoperiod on locomotor activity and plasma levels of cortisol and glucose in female Lambari. One hundred and twenty female Lambari adult were maintained in aquaria of 20 liters each in a completely randomized design with three treatments (T1 = 0Light: 24Dark, T2 = 12L: 12D, T3 = 24L: 0D) and four replications. The daily locomotor activity was registered during 15 days using an infrared photocell. After 40 days of experiment and previous fasting for 24 hours, fish were euthanized by a lethal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Synchronizer; Glucose; Cortisol; Swimming behaviour.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200008

DEVELOPMENT AND CHARACTERIZATION OF A TAMBAQUI SAUSAGE
Provedor de dados: 64
Autores: Sleder,Fernando; Cardoso,Daiane Alves; Savay-da-Silva,Luciana Kimie; Abreu,Janessa Sampaio de; Oliveira,Anderson Castro Soares de; Almeida Filho,Edivaldo Sampaio de.
ABSTRACT In Brazil, fish are sold in retail fresh or frozen, whole, or gutted. To increase consumption, convenient products with good sensory attributes should be offered. The objective of this study was to develop and characterize, through physicochemical, microbiologica, and sensory traits, a fresh sausage of tambaqui fish (Colossoma macropomum). Three formulations, with different percentages of fat (0, 4.5, and 9%) were developed. To determine shelf life, samples of the products were refrigerated at 4 ºC for 12 days and microbiological analyses were performed on days 0, 3, 7, and 12. Analyses of centesimal composition, shear force, cooking weight loss, and water-holding capacity were carried out. The shelf life of the fresh sausages was estimated at 7...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Fresh sausage; Shelf life; Sensory.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000600604

Blood chemistry profile of Surubim hybrid fish (Pseudoplatystoma reticulatum X P. corruscans) raised in different stocking densities
Provedor de dados: 64
Autores: Labarrère,Carla Rosa; Faria,Paulo Mário Carvalho de; Teixeira,Edgar de Alencar; Melo,Marília Martins.
Massive production, such as fish growing in water recirculation system, imposes challenges to animals capable of altering their homeostatic balance, and is able to affect their physiological performance. Therefore, the levels of ions and serum enzymes can be used as indicators of fish health. This study aimed to analyze the blood biochemistry profile of hybrid surubim (P. reticulatum X P. corruscans) submitted to different stocking densities in water recirculation system, in two distinct stages of production, from 150 to 400 g (first trial), and 400 to 1000 g (second trial). In the first trial, the five stocking rates were: 27.5, 47.5, 67.5, 87.5 and 107.5 fish/m³ of water. To obtain these densities, it was used 11, 19, 27, 35 and 43 fish per tank,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Hybrid; Plasma biochemistry.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000300008