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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

Abundância relativa e distribuição espaço-temporal de Micropogonias furnieri (Desmarest) e Cynoscion leiarchus (Cuvier) (Perciformes, Sciaenidae) no manguezal do Itacorubi, Santa Catarina, Brasil
Provedor de dados: 104
Autores: Hostim-Silva,Maurício; Ribeiro,Gisela Costa; Clezar,Leandro; Ledo,Blanca Sierra de.
Attempting to contribute with the knowledge about the bioecological aspects concerning the youth forms of M. furnieri (Desmarest, 1823) and C. leiarchus (Cuvier, 1830) from Itacorubi mangrove, 15 samplings were taken from January 1988 to March 1989. Using casting and entangle nets, a total of 308 individuais from these species were captured. Their abundanee were: M. furnieri N = 197 (64,0%); C. leiarchus N = 111 (36,0%). The relative frequency and range of total weights and lengths were studied. Concerning spatial distribution of the species, it was observed that M. furnieri occurred in all areas and C. leiarchus was not captured only in "D" area (Sertão River). During the anual cycle the two species occurred jointly. The results emphasize other authors...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sciaenidae; Mangrove; Abundance; Distribution.
Ano: 1992
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751992000200011

Alimentação de Bairdiella ronchus (Cuvier) (Perciformes, Sciaenidae) na Baía de Guaratuba, Paraná, Brasil
Provedor de dados: 104
Autores: Vendel,Ana Lúcia; Chaves,Paulo de Tarso da Cunha.
Seasonal variation of food items of Bairdiella ronchus (Cuvier, 1830) classified by size was analysed based on monthly samples between september/1993 and september/1996 at the Guaratuba Bay, Southern Brazil. The stomach contents of a hundred eighty-two fishes were analysed by the Occunence Frequency Method and Point Count for a Lot Method. The individuais were divided in two groups, smaller and longer than 140mm, and a comparative study of digestive tract and branchial are was performed for these groups. For fishes smaller than 140mm the following sequence of items was obtained matching both methods by using the Preponderance índices: decapods (subdivided in Brachyura, Caridea and Penaeidea), polychaets, isopods, fishes, unidentified material, copepods,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Bairdiella ronchus; Sciaenidae; Guaratuba Bay.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200003

Atividade reprodutiva de Bairdiella ronchus (Cuvier) (Pisces, Sciaenidae) na Baía de Guaratuba, Paraná, Brasil
Provedor de dados: 104
Autores: Chaves,Paulo de T. da Cunha.
Bairdiella ronchus is one of the most common species of demersal ichthyofauna in Guaratuba Bay, south Brazil. However, this study reveals that is does not inhabits permanently the mangroove area. Individuals with more than 94mm total lenght leave mangroove area in late summer and early auntumn and returming in the spring. when they start ovarian veitellogenesis. During late spring and early summer, the oocytes are hydrated, and empty follicles can be found in the ovaries, indicating that this is the reproductive time for this species As other Sciaenidae. B. ronchus is a multiple spawner species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pisces; Sciaenidae; Bairdiella ronchus.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000400005

Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast
Provedor de dados: 36
Autores: OLIVEIRA,Rory Romero de Sena; ANDRADE,Marcelo Costa; MACHADO,Fabiola Seabra; CUNHA,Élida Jesana Santana; FREITAS,Flaviane Souto de; KLAUTAU,Alex Garcia Cavalleiro de Macedo; GIARRIZZO,Tommaso; SAINT-PAUL,Ulrich.
ABSTRACT The relationships between fish size and sagitta otolith measurements were calculated for the first time for 15 species belonging to six families from the northern Brazilian coast. A total of 220 fish were sampled from the bycatch landed by the bottom-trawl industrial shrimp-fishing fleet between August and September 2016. All species had strong relationships between otolith measurements and fish total length with the coefficient of determination (r 2) ranging between 0.71 and 0.99. The variable most strongly related to fish total length was found to be the sagittal otolith length (OL) with 98% of the variability. These relationships are a useful tool to estimate length and mass of preyed fish from otoliths found in stomach contents of marine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon delta; Bycatch; Sagitta; Neotropics; Sciaenidae; Stomach content.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400299

Caracterização morfométrica da corvlna Micropogonias furnieri (Desmarest) (Pisces, Sciaenidae) na Baía de Sepetiba, Rio de Janeiro, Brasil
Provedor de dados: 104
Autores: Vicentini,Rafaela Nascimento; Araújo,Francisco Gerson.
The white croaker Micropogonias fumieri (Desmarest, 1823) is one of the most abundant fish species in the Sepetiba Bay, being heavily exploited in fisheries. Two hundred eleven fishes, captured from October 1998 to September 1999, in monthly samplings with otter trawling, were studied. The aim here is to characterize morphometrics of populations that use de Bay in order to compare with other areas. Measurements included standard length (SL), head length (HL), Pre-dorsal distance (PDD), pectoral distance (PD), ventral distance (VD) and anal distance (AD), pectoral length (PL) and eye diarneter (ED). The values of HL, PDD, PD, VD, AD, were related to SL, while ED was related to HL. Scatterplot from logaritrnized data, by sex, were analyzed in order to assess...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphometric; Sciaenidae; Coastal fishes; Bays; Sepetiba Bay.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000500010

Comparaison de methodes de decomposition de distribution polymodales de frequences de longueurs en distributions unimodales successives (NORMSEP-MIX-Maximums successive maximums), application aux "bossus" (Pseudolithus elongatus ) du Congo
Provedor de dados: 5
Autores: Le Guen, J.c; Morizur, Yvon.
Length measurements on Pseudotolithus elongatus ' samples from the Congo were recorded in the 60s. Subsamples were collected in order to be "aged" by otoliths' reading. The size frequency distributions were splitted into successive unimodal distributions by different methods. Their results were compared. The results obtained from the "successive maximums' method" were similar to those from the "otoliths' reading." The programs NORMSEP and MIX gave results far more difficult to interpret biologically speaking in spite of their mathematical quality. Because many length frequency distributions of a cohort are symmetrical in nature, we suggest applying the "successive maximums' method"if there is no evidence of normality
Tipo: Text
Palavras-chave: Frequency analysis; Size distribution; Pseudotolithus elongatus; Sciaenidae; Pisces.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/rapport-2336.pdf

Descrição de duas novas espécies de Sciaenidae (Perciformes) de água doce da Bacia Amazônica
Provedor de dados: 36
Autores: SOARES,Leoneza; CASATTI,Lilian.
São descritas duas novas espécies de Sciaenidae da região Amazônica, pertencentes aos gêneros Pachyurus e Plagioscion. Pachyurus junki sp. n. difere das demais espécies congenéricas descritas por apresentar a seguinte combinação de caracteres: extremidade posterior da nadadeira pélvica distante do ânus; largura interorbital contida menos do que 6,0 vezes no comprimento da cabeça; segundo espinho da nadadeira anal contido mais do que 2,1 vezes no comprimento da cabeça; 29 a 33 raios na nadadeira dorsal; 11 a 16 séries de escamas acima da linha lateral; 11 a 16 séries de escamas abaixo da linha lateral e 58 a 68 escamas perfuradas na linha lateral. Plagioscion montei sp. n. difere das demais espécies do gênero por apresentar: ânus distante da nadadeira anal,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pachyurus; Plagioscion; Sciaenidae; Nova espécie; Bacia Amazônica.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672000000300499

Desenvolvimento ovariano de Plagioscion squamosissimus (Heckel, 1840) (Actinopterygii, Perciformes), no reservatório de Pedra, Rio de Contas, Bahia
Provedor de dados: 49
Autores: Félix,Renata Triane da Silva; Severi,William; Santos,Athiê Jorge Guerra; El-Deir,Ana Carla Asfora; Soares,Maria Goretti; Evêncio Neto,Joaquim.
O presente estudo tem por objetivo caracterizar a organização dos ovócitos e os estádios maturacionais do ovário da pescada Plagioscion squamosissimus. As coletas foram realizadas bimestralmente no reservatório de Pedra, rio de Contas (BA), entre novembro de 2004 e setembro de 2006. As análises microscópicas foram realizadas através de cortes histológicos, corados com hematoxilina - eosina - floxina e mistura tricrômica de Gomori. Através da análise macro e microscópica, foram identificados cinco estádios maturacionais. A coloração das gônadas variou de acordo com o desenvolvimento gonadal. Para o desenvolvimento ovocitário, foram definidas seis fases: ovogônia e perinucleolar; vitelogênica e lipídica inicial; vitelogênica e lipídica intermediária;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitelogênese; Gônadas; Histologia; Pescada; Sciaenidae.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000300012

Diel changes in food and feeding activity of sciaenid fishes from the South-western Atlantic, Brazil
Provedor de dados: 57
Autores: SOARES,L. S. H.; VAZZOLER,A. E. A. de M.
Food habits and daily feeding activity of fish populations are important ecological variables for understanding their role in the ecosystem. Diel changes in feeding activity and dietary composition of juvenile whitemouth croaker Micropogonias furnieri, shortfin corvina Isopisthus parvipinnis, shorthead drum Larimus breviceps and of juvenile and adult banded croaker Paralonchurus brasiliensis were investigated from samples taken over a 24 hours period from 4 to 5 September 1987 on the continental shelf off South-eastern Brazil. Whitemouth croaker and banded croaker had a benthic diet based on polychaetes and some caridean shrimps and showed no diel feeding pattern. Shortfin corvina and shorthead drum fed on crustaceans and teleostean fish, the former...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diel feeding; Food habits; Teleostei; Sciaenidae; South-western Atlantic.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000200004

Ecologia da comunidade de metazoários parasitos da Maria-Luiza, Paralonchurus brasiliensis (Osteichthyes: Sciaenidae) do litoral do Estado do Rio de Janeiro, Brasil - DOI: 10.4025/actascibiolsci.v25i2.2009
Provedor de dados: 3
Autores: Luque, José Luis; UFRRJ; Alves, Dimitri Ramos; UFRRJ; Ribeiro, Renata da Silva; UFRRJ.
Foram examinados 93 espécimes de Paralonchurus brasiliensis (Steindachner, 1875), provenientes da Pedra de Guaratiba (23º01’S, 43º38’W) litoral do Estado do Rio de Janeiro, Brasil. No período de setembro de 2001 até março de 2002, sendo necropsiados para estudo da sua comunidade de metazoários parasitos. Quinze espécies de parasitos foram coletadas. Paralonchurus brasiliensis é um novo registro de hospedeiro para 13 espécies de parasitos. Contracaecum sp. foi a espécie dominante, com os maiores índices de prevalência e abundância parasitária. Os componentes da comunidade parasitária de P. brasiliensis apresentaram o típico padrão de distribuição superdispersa. A abundância e a prevalência de Procamallanus (Spirocamallus) pereirai apresentaram correlação...
Palavras-chave: 2.01.00.00-0    Biologia Geral ecologia parasitária; Peixes marinhos; Sciaenidae; Paralonchurus brasiliensis; Brasil 2.01.00.00-0    Biologia Geral.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2009

Feeding habits of Stellifer rastrifer (Perciformes, Sciaenidae) at Guaratuba mangrove, Parana, Brazil
Provedor de dados: 52
Autores: Chaves,Paulo de Tarso C.; Vendel,Ana Lúcia.
Feeding habits of Stellifer rastrifer (Perciformes, Sciaenidae) at Guaratuba mangrove, Parana, Brazil, were studied from February 1996 to February 1997. It was observed that its diet was based on invertebrates, mainly Decapoda non-Brachyura and Polychaeta. In a smaller proportion there were plants, Copepoda, Gammaridea and Mollusca. The level of contribution of each food item changed according to the season and the individual size. Such plasticity in feeding behaviour was similar to that described to some fish populations from other estuaries, and could be an indicator of the high level of instability presented by this kind of ecosystem.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding habit; Stellifer rastrifer; Sciaenidae; Mangrove; Guaratuba; Parana.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000400006

Food consumption of fish in a sub-tropical SW Atlantic ecosystem off Brazil: comparison of four Sciaenid species
Provedor de dados: 5
Autores: Soares, Lsh.
The first evaluations of the daily ration and population food consumption of four Sciaenid fish, under natural conditions for the Brazilian south-western Atlantic shelf (23degrees35'S, 45degrees00'W) are presented. The average daily ration ranged from 4.38 to 12.92 % body mass (90% confidence interval) for the juvenile shortfin corvina (Isopisthus parvipinnis), from 0.41 to 5.52 % body mass (90% confidence interval) for the juvenile shorthead drum (Larimus breviceps) and from 3.14% to 3.15% body mass for the juvenile whitemouth croacker (Micropogonias furnieri). Juveniles of the banded croacker (Paralonchurus brasiliensis) showed higher estimates (2.58-2.60% body mass) than those for the adults (1.2-1.84% body mass). The mean food consumption rate of the...
Tipo: Text
Palavras-chave: Ration quotidienne; Consommation; Taux d’élimination; Sciénidés; Atlantique sud-ouest; Daily ration; Population food consumption; Evacuation rate; Sciaenidae; South-westem Atlantic.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00321/43243/42972.pdf

Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis
Provedor de dados: 74
Autores: Santos,Simôni; Schneider,Horacio; Sampaio,Iracilda.
The king weakfish (pescada-gó in Portuguese - Macrodon ancylodon (Sciaenidae), a demersal (bottom-feeding) species found in South America Atlantic coastal waters from the Gulf of Paria in Venezuela to Baia Blanca in Argentina, is an economically important species because of its abundance and wide acceptance by consumers. Because of its wide distribution this fish may be subject to geographic isolation and this may have resulted in distinct populations along its coastal range. Considering that this species represents an important economic resource, confirmation of whether M. ancylodon is a single species or there are different genetic stocks spread over its wide distribution would be an important contribution to conservation policies and population...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrodon ancylodon; Sciaenidae; Perciformes; 16S rRNA; Cytochrome b; Genetic differentiation.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000200008

Low levels of genetic diversity depicted from mitochondrial DNA sequences in a heavily exploited marine fish (Cynoscion acoupa, Sciaenidae) from the Northern coast of Brazil
Provedor de dados: 74
Autores: Rodrigues,Rosa; Schneider,Horacio; Santos,Simôni; Vallinoto,Marcelo; Sain-Paul,Ulrich; Sampaio,Iracilda.
The acoupa weakfish (Cynoscion acoupa - Sciaenidae) is a marine species of croaker with estuarine-dependent behavior, found in the western Atlantic from Panama to Argentina. It is one of the most exploited food fish on the northern coast of Brazil. In this study, DNA sequences were determined from the entire control region (D-loop) of the mitochondrial genome of 297 individuals collected during seven different months between December 2003 and August 2005 on the northern coast of Brazil (Amapá and Pará). Genetic variability expressed by haplotype (h = 0,892) and nucleotide (pi = 0,003) diversities were low compared to other heavily exploited marine fish species from the western Atlantic and eastern Asia. AMOVA depicted a lack of genetic structuring among...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cynoscion acoupa; Acoupa weakfish; Sciaenidae; Low genetic diversity; Mitochondrial DNA; D-loop.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000300015

Maturation and spawning of tropical and subtropical marine finfish by environmental manipulations
Provedor de dados: 5
Autores: Roberts Jr, D.
Circannual, diel, and lunal periodic mechanisms in naturally reproducing stocks of tropical and subtropical fishes are reviewed. Manipulations of biological clocks, used to control reproduction in captive broodstocks, are detailed. Experiments to induce controlled maturation and spawning in fishes either test efficacy of changing environmental conditions (regimes), or constant environmental conditions (controlled). Data have been generated in experimental/scientific studies, as well as applied research. Effects of controlled environmental regimes on serum steroids, gametogenesis, spawning, fry performance and egg quality are summarized for selected members of Centropomidae, Serranidae, and Sciaenidae.
Tipo: Text
Palavras-chave: Sciaenidae; Serranidae; Centropomidae; Fish culture; Controlled conditions; Sexual maturity; Photoperiods; Fish eggs; Gametogenesis; Steroids; Animal reproductive organs; Brood stocks; Marine fish; Spawning; Sexual reproduction.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1437.pdf

Observações sobre o ciclo de vida da corvina, Micropogonias furnieri (Desmarest) (Teleostei, Sciaenidae), no litoral do Estado do Paraná, Brasil
Provedor de dados: 104
Autores: Robert,Maurício de Castro; Chaves,Paulo de Tarso C.
A survey performed in the Guaratuba Bay (25º52'S; 48º39'W) and the adjacent marine area has provided additional data about the habits of the croaker in the southern coast of Brazil. A dynamic pattern of movements along the marine and estuarine waters was observed, but it does not indicate spawning activity in the study area. During autumn/winter, pre-adults and adults use the marine waters. In spring/summer, following gonadal maturation,the individuals leave this area and probably move to deeper waters, where they spawn. Until the end of summer, the estuary is then occupied by juveniles coming from the marine spawning area. In autumn/winter, these juveniles and the new pre-adults move to the marine zone adjacent to the bay and begin gonadal maturation. It...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sciaenidae; Micropogonias furnieri; Occupation; Estuaries; Brazil.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000200013

Plasma ion levels of freshwater and marine/estuarine teleosts from Southern Brazil
Provedor de dados: 83
Autores: Becker,Alexssandro Geferson; Gonçalves,Jamile Fabbrin; Toledo,Jaderson dos Anjos; Burns,Marcelo D. M.; Garcia,Luciano de Oliveira; Vieira,João Paes; Baldisserotto,Bernardo.
The purpose of this study was to investigate Na+, Cl-, K+, Ca2+, and Mg2+ levels in the plasma of freshwater and marine/estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater portions of the São Gonçalo channel in Southern Brazil. Any relationship between plasma ion levels and salinity and the capacity of ionic regulation of teleosts found at three or more different salinities (Genidens barbus and Micropogonias furnieri) was also investigated. Results showed no relationship between plasma ion levels and salinity when considering all species together, but the two species collected from three or more different salinities showed a significant positive relationship between plasma ion levels and salinity, indicating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ariidae; Estuaries; Ionoregulation; Osmoregulation; Salinity; Sciaenidae.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400021

Reprodução de Stellifer rastrifer (Jordan) (Teleostei, Sciaenidae) na Baía de Guaratuba, Paraná, Brasil
Provedor de dados: 104
Autores: Chaves,Paulo de Tarso da Cunha; Vendel,Ana Lúcia.
A total of 1312 individuais of S. rastrifer were sampled from March 1994 to September 1996 at the Guaratuba Bay, Southern Brazilian coast. This species is a permanently inhabitant of the mangrove area throughout the year. The weight/length relationship of the species in the region is "In TW =-12,35 + 3,22 In TL", and the individuais may reach 172mm of total length. The analyses of gonadal morphology and gonadossomatic index indicate that S. rastrifer is a multiple spawner species, that reproduces at the mangrove area during a long period of the year. The reproductive activity is more intense during the winter and mainly the spring, when the value of Condition Factor declines and empty folheies are found in the ovaries.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Teleostei; Sciaenidae; Stellifer rastrifer; Fish reproduction; Guaratuba Bay; Brazil.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000100008

Sciaenidae fish of the Caeté River estuary, Northern Brazil: mitochondrial DNA suggests explosive radiation for the Western Atlantic assemblage
Provedor de dados: 74
Autores: Vinson,Christina; Gomes,Grazielle; Schneider,Horacio; Sampaio,Iracilda.
Sciaenids are fish which are normally abundant in tropical estuaries of the western Atlantic. Studies on the Caeté river estuary in the northern Brazilian state of Pará have revealed that in this area Sciaenidae is the dominant family, comprising almost 50% of all teleosts sampled. In this paper we present the results of the first phylogenetic study on South American estuarine sciaenids, during which we obtained mitochondrial gene 16S sequences from 15 species belonging to eight genera occurring in the Caeté estuary. Intergeneric nucleotide divergences varied from 5 to 15%, Lonchurus and Menticirrhus being the most divergent lineages. Nucleotide divergences were quite variable amongst species of the same genus, ranging from 1.2% (Stellifer microps x...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sciaenidae; Perciformes; Mitochondrial DNA; RRNA 16S; Caeté River estuary.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000200008

Spatial, seasonal and ontogenetic changes in food resource use by a piscivore fish in two Pantanal lagoons, Brazil
Provedor de dados: 83
Autores: Gimenes,Michele de Faveri; Fugi,Rosemara; Isaac,Andréia; Silva,Marlene Rodrigues da.
We evaluated the factors that affect the food resource use by Plagioscion ternetzi using three approaches: spatial, seasonal, and ontogenetic changes. Fish were sampled between March 2000 and February 2001 and March 2003 and February 2004 in the Sinhá Mariana and Chacororé lagoons, wetlands of the Pantanal Matogrossense. Fish was the predominant food in the diet, but shrimps and insects have been also consumed. The diet of P. ternetzi was significantly different between lagoons, but no difference was detected between dry and flood periods. In Sinhá Mariana lagoon, the diet mainly consisted of Psectrogaster curviventris, in both periods. In the flood period in Chacororé lagoon, fish was the dominant food (especially Astyanax spp., Leporinus spp. and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chacororé lagoon; Diet; Plagioscion ternetzi; Sciaenidae; Sinhá Mariana lagoon.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100163

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

The complete mitochondrial genome of the small yellow croaker and partitioned Bayesian analysis of Sciaenidae fish phylogeny
Provedor de dados: 74
Autores: Cheng,Yuanzhi; Wang,Rixin; Sun,Yuena; Xu,Tianjun.
To understand the phylogenetic position of Larimichthys polyactis within the family Sciaenidae and the phylogeny of this family, the organization of the mitochondrial genome of small yellow croaker was determined herein. The complete, 16,470 bp long, mitochondrial genome contains 37 mitochondrial genes (13 protein-coding, 2 ribosomal RNA and 22 transfer RNA genes), as well as a control region (CR), as in other bony fishes. Comparative analysis of initiation/termination codon usage in mitochondrial protein-coding genes of Percoidei species, indicated that COI in Sciaenidae entails an ATG/AGA codon usage different from other Percoidei fishes, where absence of a typical conserved domain or motif in the control regions is common. Partitioned Bayesian analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Larimichthys polyactis; Mitochondrial genome; Control region; Partitioned Bayesian analysis; Sciaenidae.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000100027

The differential effects of changing management regimes on yields from two fisheries exploiting the same resources
Provedor de dados: 20
Autores: Djama, Theodore; Pitcher, T.J.
A yield per recruit model has been used to compare the effects of mesh size increment on the yields and revenues of the fisheries of Cameroon under two different cases. Case 1 assumes the commercial fishery to move from the exploitation of three age-groups to two age-groups with no interactions with the artisanal fishery, whereas Case 2 takes into account these interactions. The difference in the percentage increase of yield per recruit between case 1 and case 2 is 61% at current fishing (46% and 18% yield per recruit increment in cases 1 and 2 respectively). The usually accepted long-term yield per recruit increment with increase of age at first capture (with a single non-interacting fisheries) is, in this case, cancelled out. However, the revenues...
Tipo: Journal Contribution
Palavras-chave: Yield/recruit; Commercial fisheries; Artisanal fishing; Biology; Fisheries; Biological interaction; Sciaenidae; Fisheries development; Fishery management.
Ano: 1997
URL: http://hdl.handle.net/1834/5132

Trophic ecology of commercial-size meagre, Argyrosomus regius, in the Bay of Biscay (NE Atlantic)
Provedor de dados: 5
Autores: Hubans, Barbara; Chouvelon, Tiphaine; Begout, Marie-laure; Biais, Gerard; Bustamante, Paco; Ducci, Lillian; Mornet, Francoise; Boiron, Anne; Coupeau, Yann; Spitz, Jerome.
In the north-eastern Atlantic, meagre (Argyrosomus regius) is one of the largest fish living on the shelf and this species has important commercial interest. Over the past two decades, large variations in meagre abundance have been observed with pluri-annual cycles but the factors involved in such variations are still unclear. Trophic interactions between meagre and other species (both prey and competitors) might be one explanatory variable of the observed variations in meagre recruitment and abundance. In the present study, we described the diet of commercial-size meagre in the Bay of Biscay from stomach content and stable isotope analyses, and explored its dietary ontogeny. We found that commercial-size meagres were mostly piscivorous with a diet...
Tipo: Text
Palavras-chave: Diet; SIAR; Ontogeny; Marine top predators; Sciaenidae.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00384/49531/50028.pdf