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| Registros recuperados: 71 | |
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| Vidotti, Rose Meire; UNESP; Carneiro, Dalton José; UNESP; Malheiros, Euclides Braga; UNESP. |
| Com o objetivo de estudar a utilização da fração protéica na fase inicial do crescimento do bagre africano, Clarias gariepinus (Burchell, 1822), foram utilizadas doze dietas contendo quatro níveis de proteína bruta (20, 26, 32 e 38%) e três proporções de proteína de origem animal: zero, um quarto e metade do teor protéico da dieta. Alevinos estocados em aquários de 100 litros de capacidade receberam ração à vontade duas vezes ao dia, durante duas fases experimentais com durações de 45 e 30 dias. O C. gariepinus mostrou-se exigente com relação à fração protéica da dieta, considerando-se que a elevação do teor protéico até o máximo, melhorou, efetivamente, os resultados de ganho de peso, consumo de ração, conversão alimentar, taxa de eficiência protéica e... |
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Palavras-chave: 5.04.00.00-2 Zootecnia Clarias gariepinus; Catfish; Exigência de proteína; Rações peletizadas; Proteína de origem animal; Crescimento inicial 5.04.00.00-2 Zootecnia. |
| Ano: 2000 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/3239 |
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| Cruz,Sabrina Spindler da; Leal,Mateus Evangelista; Albornoz,Pablo César Lehmann; Schulz,Uwe Horst. |
| The introduction of non-native species in inland waters is one of the main threats for aquatic biodiversity. Introduced species may compete for resources, prey on native fauna, spread diseases and parasites. The channel catfish Ictalurus punctatus (Siluriformes, Ictaluridae) was first described by Rafinesque 1818 in the United States and is widely distributed in North America, south Canada and north-east Mexico. This species adapts easily to new environmental conditions, is tolerant to different habitats, and is grown easily in aquaculture, which turns it into a potential invader of natural aquatic environments. The introduction of I. punctatus occurs in Brazil since 1980, and this is the first record of its occurrence in the Rio dos Sinos basin, Brazil. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Introduction; Exotic species; Aquaculture; Catfish; Environmental laws. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300005 |
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| Scaff,Rejane Maria Cirra; Scussel,Vildes Maria. |
| The histopathological effects of fumonisin B1 (FB1) injected intraperitoneally (IP), was evaluated in catfish (Ictalurus punctatus). Fishes were divided into four Groups. Groups II, III and IV were treated IP with FB1 injections of 1; 5 and 10 mg/kg bw/day, respectively, during 21 days. At the 7th, 14th and 21st day, fishes were sacrificed. The livers were hystologicaly analysed by the light and transmission electronic microscopy. Livers from the 7th day showed organelles alterations, particularly in the granular endoplasmatic reticle, mitochondria, nucleus and nucleolus mediated by FB1 doses. The occurrence of processes involved in the necrosis and apoptosis was detected. At the highest FB1 dose,the livers presented an intense response with an accentuate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Liver; Catfish; Fumonisin B1; Histopathology; Ultra-structural microscopy. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000200013 |
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| CYRINO,J. E. P.; MULVANEY,D.R.. |
| Biossays were performed to assess the effects of different levels of growth medium supplementation with fetal bovine serum (FBS), fish fry extract (FE), combinations of FBS and FE, and addition of insulin-like growth factor I (IGF-I) and fibroblast growth factor (FGF) on the proliferation of brown bullhead catfish cells (BB line). Treatments (n = 4) were: 2.5, 5, 10, and 15.0% FBS or FE and 5/2.5, 5/5, 10/2.5, and 10/5 of a FBS/FE combination as supplement to the growth medium, or the addition of 0.1, 1, 2.5, 10, 25, and 75 ng/ml of either IGF-I or FGF to the growth media. Initial cell density was 1.1 x 10(6) cells per well on uncoated 24-well plates. Incubation temperature was 29.5 ± 0.7ºC. Six hours after plating, initial culture medium was removed,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mitogenic activity; Growth factors; Catfish; BB cell line. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000300017 |
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| Matsuo,A.Y.; Val,A.L.. |
| The present study analyzes Na+ and K+ disturbances caused by low pH in two catfish species from the Amazon River. Corydoras adolfoi inhabits ion-poor, black-stained, low pH (3.5-4.0) waters, while C. schwartzi is native to ion-rich waters at circumneutral pH. Fish were exposed to pH 3.5 Ca2+-free, and Ca2+-enriched (~500 µmol/l) water to determine the protective effects of calcium. Net Na+ and K+ fluxes were measured in the water collected from the fish experimental chambers. C. adolfoi was unable to control the Na+ efflux at low pH, exhibiting Na+ loss up to -594 ± 84 nmol g-1 h-1 during the first hour. After 3 and 6 h, net Na+ flux increased by 7- and 23-fold, respectively. In C. schwartzi, at pH 3.5, the initial high Na+ loss (-1,063 ± 73 nmol g-1 h-1)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Low pH; Calcium; Blackwater; Net Na+ and K+ flux; Amazon; Catfish. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000300012 |
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| Abrunhosa,Jacqueline Pompeu; Silva,Michele Velasco Oliveira da; Sindeaux Neto,José Ledamir; Santos,Patrícia de Fátima Sacco dos; Matos,Patrícia Santos; Sanches,Osimar de Carvalho; Matos,Edilson Rodrigues. |
| ABSTRACT: The present study investigated the morphology and pathology associated with the occurrence of cysts caused by Myxobolus sp. in the intestine of the silver catfish Rhamdia quelen . Comparisons with the other Myxobolus species that infect the intestines of cyprinids and siluriforms revealed that the pyriform spores of Myxobolus sp. are similar in shape to those described previously in M. miyairii, M. duodenalis and M. cunhai, but different in size. Morphometric analyses revealed that mature spores of Myxobolus sp. (10.9 x 5.1μm) are smaller than those of most species except M. cunhai (10.0 x 5.0μm), which has been described infecting the Brazilian catfish Pimelodus clarias , although the spores differ morphologically in relation to the shape of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Myxobolus; Histopathology; Fish parasites; Catfish; Neotropical. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001102024 |
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| Garcia,Thiago D.; Ota,Renata R.; Ferreira,Dhiego G.; Nascimento,Raul H. C.; Galindo,Bruno A.; Pereira,Larissa S.; Zanatta,Augusto S.. |
| ABSTRACT When a river is dammed, impacts differ according to distance from the dam under consideration, and sites closer to the dam are more affected than distant ones. Damming a river changes the flow and landscape characteristics, which, in turn, change the hydrological, limnological and ecological dynamics, such as biological production, species distribution, and ecosystem structuring, functioning and services. This study evaluates the distribution pattern of the Siluriformes (catfish) fish species near a small hydroelectric power plant in the Jaguariaíva River, considering three distinct distances from the dam: upstream region, reservoir and downstream region. Samples were taken with gillnets between March 2013 and December 2014. The abundance and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish assemblage; Ichthyofauna; Catfish; Paraná basin; Reservoir. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100205 |
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| Lemarie, Gilles; Gasset, Eric. |
| The authors present the necessary to sort catfish and sea bream fries in order to limit cannibalism, to constitute homogeneous groups. In the same time they studied different sorters (bars sorter, grating sorter and the conception of an experimental sorter) and their effects on the juveniles (behaviour). Introduction: In hatchery, early sorting of Sea Bass or Sea Bream fry after weaning can become necessary for several reasons: a) To obtain homogeneous batches thus simplifying growing management by better controlling: - Specific water flow for precise ranges of size or weight, - Food distribution granularity, - Daily feeding rate. b) To limit cannibalism which can become high when population dispersion is spread out. This dispersion greatly increases... |
| Tipo: Text |
Palavras-chave: Pisces; Nursery ponds; Juvenile stage; Sea bream; Catfish; Fry; Pisces; Stade juvénile; Dorade; Loup; Alevin. |
| Ano: 1989 |
URL: http://archimer.ifremer.fr/doc/1989/rapport-1751.pdf |
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| Garidou, Cécile. |
| INTRODUCTION: Norway Lobster fisheries in the Celtic Sea are mostly located in the Vllg and Vllh subdivisions. The communal regulation applying to Norway Lobster mesh size has been in effect since 1978. The use of derogative mesh size to catch Norway Lobsters is only allowed if the percentage of species protected by marketable size caught at the same time as Norway Lobsters is inferior to a fixed threshold in relation to the mesh size in effect. This regulation has been applied according to a specific schedule. With a percentage of protected species higher than 60 %, catching is considered as geared towards fish and mesh size is what the global regulation requires, i.e. 80 mm. As a matter of fact, as it has been mentioned many times, under the pressure of... |
| Tipo: Text |
Palavras-chave: Mass balances; Quantification of discards; Dicentrarchus labrax l; Catfish; Fish farm. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/1994/rapport-1752.pdf |
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| Diogo,Rui. |
| The cephalic and pectoral girdle structures of the heptapterin Hepapterus mustelinus (Nemuroglanis clade') are described and compared to those of two representatives of the other, more plesiomorphic, main heptapterin group, namely Goeldiella eques and Rhamdia guatemalensis ('basal clade'), as well as of several other catfishes, as the foundation for a discussion on the synapomorphies and phylogenetic relationships of the Heptapterinae. In addition to the five synapomorphies commonly referred in the literature, there is another potential Heptapterinae synapomorphy: the well-developed maxilla forming a completely closed, deep tube to enclose the base of the maxillary barbel. The subfamilies Pimelodinae, Heptapterinae and Pseudopimeodinae seem to form a... |
| Tipo: Journal article |
Palavras-chave: Catfish; Heptapterinae; Morphology; Phylogeny; Pimelodidae; Siluriformes. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000400011 |
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| Diogo,Rui. |
| The cephalic and pectoral girdle structures of Pangasius macronema are described and compared with those of another representative of the same genus, Pangasius larnaudii, and of representatives of the other pangasiid genus, Helicophagus leptorhynchus and Helicophagus typus, as well as of several other catfishes, as the foundation for a discussion of the synapomorphies and phylogenetic relationships of the Pangasiidae. The following two features could constitute Pangasiidae autapomorphies: 1) presence of prominent crest on the dorso-lateral surfaces of both the hyomandibulo-metapterygoid and the ento-ectopterygoid; 2) presence of a large, circular foramen between the anterodorsomedial surface of the extrascapular, the dorsomesial surface of the pterotic and... |
| Tipo: Journal article |
Palavras-chave: Catfish; Helicophagus; Pangasius; Pangasiidae synapomorphies; Morphology; Phylogeny; Siluriformes. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300001 |
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| Freitas,Tiago Magalhães da Silva; Almeida,Vitor Hudson da Consolação; Valente,Roberta de Melo; Montag,Luciano Fogaça de Assis. |
| Feeding habits of the midnight catfish Auchenipterichthys longimanus collected in rivers of the Caxiuanã National Forest (Eastern Amazonia, Brazil) were investigated through the different hydrological periods (dry, filing, flood and drawdown). A total of 589 specimens were collected throughout seven samplings between July 2008 and July 2009, of which 74 were young males, 177 adult males, 89 young females and 249 adult females. The diet composition (Alimentary index - Ai%) was analyzed by a non-metric multidimensional scaling (nMDS) and by the analysis of similarity (ANOSIM), which included 37 items grouped into nine categories (Aquatic insects, Other aquatic invertebrates, Arthropods fragment, Fish, Plant fragment, Seeds, Terrestrial insects, Other... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Catfish; Hydrological seasons; Trophic ecology. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300016 |
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| Koerber,Stefan; Reis,Roberto E.. |
| ABSTRACT Historical information on the probable type-locality of Pimelodus quelen and of its four junior synonyms that share the same neotype, Pimelodus namdia, Pimelodus sebae, Heterobranchus sextentaculatus, and Silurus rivularis, is presented and discussed. The neotype designation for those four species is deemed invalid for not complying with the provisions of the International Code of Zoological Nomenclature, making it technically possible to revalidate any of the four taxa from the synonymy of Rhamdia quelen without having to address the International Commission of Zoological Nomenclature. The type-locality of both Curimata gilbert and Callichthys asper are also restricted to rio Macacu at the village of Japuíba, State of Rio de Janeiro, Brazil. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Catfish; Diversity; Nomenclature; Synonymy; Taxonomy. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000100215 |
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| Rocha,Marcelo Salles; Oliveira,Renildo Ribeiro de; Py-Daniel,Lúcia H. Rapp. |
| A new species of Gladioglanis is described from a single locality on rio Aripuanã, rio Madeira basin, and can be distinguished from its congeners by the following characters: dorsal-fin spine and spinelet absent, first dorsal-fin ray flexible, unbranched, followed by five branched dorsal-fin rays, pectoral-fin spine short and with few (5 anterior-side, 4 posterior-side) dentations, 22-25 anal-fin rays, round profile of the head in dorsal view, first dorsal-fin pterygiophore in contact with the neural spine of eighth vertebrae, 13 caudal-fin rays in both upper and lower lobes, and 60 total vertebrae. Some of its characters are discussed below and compared among the species of a small clade within Heptapteridae proposed by Bockmann (1998). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Catfish; Taxonomy; Gladioglanis conquistador; Gladioglanis machadoi. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000300017 |
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| Zawadzki,Cláudio Henrique; Oliveira,Renildo Ribeiro de; Debona,Tiago. |
| Hypostomus delimaiis described from the rio Tocantins, Tocantins State, and from the rio Araguaia, Pará, and Tocantins States, Brazil. The new species is distinguished from all other Hypostomusspecies, except from H. carinatus, H. hoplonites, and H. watwata, by the presence of five to eight (mode seven) predorsal plates limiting posterior border of the supraoccipital bone (vs. one to three plates). It can be distinguished from H. carinatus, H. hoplonites, and H. watwata by having pale spots over darker background on body and fins (vs. dark spots over lighter background). The species was only found in the middle stretches of the rio Tocantins-Araguaia basin. The first collection of specimens assigned to the new species was done in the rio Tocantins before... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cantão; Catfish; Hydroelectric; Hypostominae; Neotropical fishes; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100073 |
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| Registros recuperados: 71 | |
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