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| Registros recuperados: 10 | |
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| Almeida,Paulo R. C.; Monteiro-Neto,Cassiano; Tubino,Rafael A.; Costa,Marcus R.. |
| RESUMO Os otólitos são estruturas espécie-específicas de peixes cuja análise morfológica é uma ferramenta eficiente para identificação e discriminação de estoques e/ou populações sujeitas a variações clinais. O presente trabalho buscou elucidar o grau de variação morfológica dos otólitos sagitta do dourado, Coryphaena hippurus Linnaeus, 1758 capturado ao largo da costa sudeste do Brasil pela frota pesqueira sediada no Rio de Janeiro. Os 164 pares de otólitos analisados foram obtidos a partir de amostras coletadas entre fevereiro de 2014 e outubro de 2016. A forma e o contorno dos otólitos sagitta foram caracterizados através de seis descritores (área, perímetro, circularidade, retangularidade, excentricidade e dimensão fractal) e análises de Fourier... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morfometria geométrica; Forma do otólito; Análise de Fourier elíptica; Análise multivariada. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100218 |
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| Cunha,Edna A.; Carvalho,Roberto A. A.; Monteiro-Neto,Cassiano; Moraes,Luiz Eduardo S.; Araújo,Maria Elisabeth. |
| This study compared tidepool fish assemblages within and among habitats at Iparana and Pecém beaches, State of Ceará, Northeast Brazil, using visual census techniques. A total of 8,914 fishes, representing 25 families and 43 species were recorded. The most abundant taxon was Sparisoma spp, followed by Haemulon parra (Desmarest, 1823), Acanthurus chirurgus (Bloch, 1787) and Abudefduf saxatilis (Linnaeus, 1758). Haemulidae was the most abundant family in number of individuals, followed by Scaridae, Acanthuridae and Pomacentridae. Within- and between- site differences in species assemblages probably reflected environmental discontinuities and more localized features, such as pool isolation episodes, or environmental complexity, both acting isolated or... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Visual census; Fish assemblages; Abundance; Biodiversity. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000300013 |
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| Monteiro-Neto,Cassiano; Tubino,Rafael A.; Moraes,Luiz E. S.; Mendonça Neto,José P. de; Esteves,Gustavo V.; Fortes,Wagner L.. |
| A região costeira de Itaipu, Rio de Janeiro é guarnecida por três ilhas, formando uma enseada semi-abrigada porém com ampla comunicação com o mar. Esta enseada recebe o aporte de águas do complexo lagunar Itaipu-Piratininga, além da influência de massas d'água oceânicas, constituindo uma área de intensa atividade pesqueira artesanal. Utilizando-se dados provenientes do monitoramento mensal da pesca artesanal (arrastos-de-praia, redes de emalhe e linha de mão), de arrastos experimentais em zona de arrebentação, censos visuais sub-aquáticos (ilhas da Menina, Mãe e Pai) e um experimento multiamostral na lagoa de Itaipu, elaborou-se uma lista de espécies de peixes que ocorrem na região, observando-se as suas conectividades e afinidades aos diversos habitats... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Itaipu; Lista de espécies; Peixes; Pesca artesanal; Conectividade de habitats. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000100007 |
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| Bonner,Alan; Duarte,Michelle R.; Souza,Rosa C. C. L.; Monteiro-Neto,Cassiano; Silva,Edson P.. |
| ABSTRACT Two Coryphaena hippurus morphotypes (dourado and palombeta) are found along the Brazilian coast and are considered by Rio de Janeiro’s fisherman and fishmongers as two different species. Furthermore, these morphotypes are commercialized under different values and suffer different fishing pressure. Therefore, a definition of their taxonomic status is an important economic and biological matter. In order to investigate this problem, allozyme electrophoresis method was undertaken for seventeen loci on 117 individuals of C. hippurus sampled at Cabo Frio/RJ (Brazil). The data indicate homogeneity between the morphotypes gene pools. Nevertheless, differences were found for genetic variation among dourado and palombeta, especially due to alcohol... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alcohol dehydrogenase; Allozyme electrophoresis; Biochemical systematics; Fishery resources; Genetic variation. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000100205 |
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| Mendonça-Neto,José Policarpo de; Monteiro-Neto,Cassiano; Moraes,Luiz Eduardo. |
| We provide here the first assessment of the composition, abundance and distribution of rocky reef fishes of Itaipu Sound, Rio de Janeiro, off the southeastern Brazilian coast. Monthly visual censuses, benthic quadrats and chain link transects were conducted over one year on rocky reefs at three islands (Menina, Mãe and Pai). A total of 2466 individual fish, belonging to 29 families and 42 species were recorded. The most abundant fish species were Parablennius pilicornis, Haemulon steindachneri, Orthopristis ruber and Diplodus argenteus. Sheltered and complex habitats showed the most abundant and diverse fish populations. There was a major significant separation between sampling sites and a secondary seasonal pattern. The three sites showed similar fish... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Rocky reef fishes; Habitat complexity; Benthic biota. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000200015 |
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| Rosa,Ierecê Lucena; Oliveira,Tacyana P. R.; Castro,André L. C.; Moraes,Luiz E. de Souza; Xavier,Josias H. A.; Nottingham,Mara C.; Dias,Thelma L. P.; Bruto-Costa,Leonardo V.; Araújo,Maria E.; Birolo,Alesandra B.; Mai,Ana C. G.; Monteiro-Neto,Cassiano. |
| This paper provides a case study of a threatened seahorse species, Hippocampus reidi, highlighting the importance of using ecological information to assist conservation and management initiatives. Underwater visual sighting data (50 x 2m transect) gathered along the NE, SE and S portions of the Brazilian coast revealed an unequal distribution across localities, perhaps related to harvesting pressure, and a mean density of 0.026 ind.m-2. Our findings suggest some restricted spatial use by H. reidi, which was consistent with its estimated home range, and with re-sighting of specimens. Reproduction was recorded year-round, however productive peaks may exist. Components of habitat structure mostly used as anchoring points were mangrove plants, macroalgae,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Longsnout seahorse; Mangrove; Habitat use; Population structure; Brazil; Conservation. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300020 |
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| Souza,Geysa M. de; Tubino,Rafael de A.; Monteiro-Neto,Cassiano; Costa,Marcus R. da. |
| ABSTRACT The bluefish, Pomatomus saltatrix (Linnaeus, 1766), was used as a species-specific model to study morphometric relationships between otolith size and relative growth variables. Length-weight relationships between Otolith (Length-OL, Height-OH, and Weight-OW) and fish measurements (Total Length-TL and Total Weight-TW) were determined for fishes captured monthly during the year 2015 off the southeastern coast of Brazil. The ANCOVA and Kruskal-Wallis analysis did not indicate significant differences in the relative growth constants between sexes and length frequency distributions (p > 0.05). The condition factor also did not present significant differences between sexes, and right and left otolith measurements (p > 0.05). A total of 398... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bluefish; LWR; Otolith morphometrics; Sagitta otolith; Somatic growth. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000100206 |
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| Souza,Geysa Marinho de; Monteiro-Neto,Cassiano; Costa,Marcus Rodrigues da; Bastos,Ana Luiza; Martins,Raquel Rennó Mascarenhas; Vieira,Francyne Carolina dos Santos; Andrade-Tubino,Magda Fernandes de; Tubino,Rafael de Almeida. |
| ABSTRACT The bluefish, Pomatomus saltatrix (Linneus 1766) is captured by industrial, artisanal, and recreational fisheries throughout its distribution range. The reproductive biology of P. saltatrix in the southwestern Atlantic was studied using 1,102 specimens captured by the Brazilian commercial fleet between March 2014 and December 2015. The recruitment period was identified from records of juveniles in experimental beach seine hauls carried out on sandy beaches in the external sector of Guanabara Bay for four years (2012-2015). Based on the reproductive indices and on the macro- and microscopic analyses of the gonads, spawning peaks were identified in autumn and spring. The size at first maturity was estimated at 35.5, 38.3, and 37.4 cm for females,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fecundity; Histology; Oocyte development; Reproductive dynamics; Spawning seasons; Young-of-the-year. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702021000100301 |
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| Registros recuperados: 10 | |
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