Contribuição para o conhecimento da biologia de Cynoscion jamaicensis (Vaillant &amp; Bocourt, 1883), na área entre Cabo de São Tomé (22º04's) e Torres (29º21'S), Brasil

Vazzoler, Anna Emilia Amato de Moraes; Braga, Francisco Manoel de Souza

doi:10.1590/s0373-55241983000200003

Cited by 5 publications

(8 citation statements)

References 10 publications

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“…On the other hand, in April, with K at the highest level, individuals had already recovered. These data coincide with those of Vazzoler & Braga (1983) and Vazzoler (1996). R. paranensis Figueiredo-Garuti & Garuti (1991) observed that the species has three reproductive periods: August/September, November/January, and March.…”

Section: Resultssupporting

confidence: 91%

“…Similar results have been obtained by Martins-Juras (1980) for M. furnieri. Vazzoler & Braga (1983) showed that in Cynoscion jamaicensis, there was a certain constancy in the condition factor values in relation to the length of mature specimens during a one-year period. Vazzoler & Vazzoler (1965) had already observed that in Sardinella brasiliensis this constancy did not exist, as the young extract of this species presented K values greater than those of the adult extract.…”

Section: Resultsmentioning

confidence: 97%

“…It shows the population's welfare during the various stages of the life cycle (Angelescu et al, 1958). In the case of Puntius puntius (Bhatnagar, 1963) and Micropogonias furnieri (Vazzoler & Braga, 1983), the condition factor decreases at the start of the spawning period due to very high metabolic rates. There is normally a gradual increase in the condition factor during the reproductive period and normalization occurs immediately afterwards.…”

Section: Resultsmentioning

confidence: 99%

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Condition factor in nine species of fish of the Characidae family in the upper Paraná River floodplain, Brazil

2002

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

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Condition factor in nine species of fish of the Characidae family in the upper Paraná River floodplain, Brazil

2002

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“…From 19 cm, individuals of this species are already adult (VAZZOLER; BRAGA, 1983;CASTRO et al, 2002) and as this species has a high commercial value it is possible that the gull has fed only on head or carcass of these individuals, which has possibly been discarded on the beach, as the region of Barrancos presents a routine handling of fish on the beach that provides discards and portions not marketed or consumed. Other species with high representativeness during the closed season in this area was Micropogonias furnieri, often caught incidentally by driftnet and fixed gillnets (CHAVES; ROBERT, 2003), which confirms the use of discards of other fishing gear by L. dominicanus during the closed fishing season.…”

Section: Discussionmentioning

confidence: 99%

Does the closed fishing season influence the ichthyofauna consumed by Larus dominicanus?

2017

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Does the closed fishing season influence the ichthyofauna consumed by Larus dominicanus?Fish that are incidentally caught by shrimp trawling represent a predictable and abundant resource for feeding several bird species, especially for the gull Larus dominicanus. This fishing activity is subject to disruptions throughout the year during closed fishing seasons, when other fishing modalities are exercised, which can alter the composition, abundance and size of the fish bycatch. This study evaluated the influence of the restriction of fishing period of shrimp (closed season) on the diet of L. dominicanus, on the Paraná State coast. From December 2013 to August 2014, 10 pellets were collected per month in two distinct areas that have shrimp trawl fishery as the main economic activity: one continental and another in an estuarine island. In total, 920 fish were identified, divided into four families and 15 species, especially the family Sciaenidae with 11 species. There were differences in abundance and biomass of species between areas and between seasons of pre-closure, closure and post-closure. Differences for the mean total length of the species were only detected between the pre-closed and closed seasons in one area. This study evidenced the strong relationship between L. dominicanus and the shrimp trawl fishery, the species composition identified in the pellets and their respective morphometric measurements follow the same pattern of the literature for fish discarded in trawling activities. As capturas incidentais de peixes no arrasto do camarão representam um recurso abundante para a alimentação de muitas aves, sobretudo para a gaivota Larus dominicanus. O presente estudo avaliou a influência do defeso da pesca de arrasto do camarão sobre a dieta de L. dominicanus no litoral do estado do Paraná. Entre dezembro de 2013 e agosto de 2014 foram coletados 10 pellets alimentares por mês em duas áreas distintas, em períodos sem e com a influência do defeso do camarão sete-barbas. Ao todo, foram identificados 920 peixes, divididos em quatro famílias e 15 espécies, com destaque para a família Sciaenidae, com 11 espécies. Foram identificadas diferenças na abundância e biomassa das espécies entre as áreas e entre os períodos de pré-defeso, defeso e pós-defeso. Diferenças em relação ao comprimento total médio das espécies só foram encontradas entre o pré-defeso e defeso em uma das áreas. Com este trabalho, foi possível observar a forte relação entre L. dominicanus e a pesca de arrasto do camarão, a composição das espé-cies identificadas nos pellets e as estimativas de comprimento seguem o mesmo padrão do que a literatura traz para os peixes descartados nas atividades de arrasto. resumo Descritores: Descarte de pesca, Pesca do camarão, Defeso, Aves marinhas, Brasil. AbstrAct

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“…Entre cabo de São Tomé (SC) e Torres (RS) os estratos mais jovens concentram-se ao norte e a desova ocorre de setembro a novembro (Vazzoler & Braga, 1983). Já, para Vazzoler et al (1989), a desova da espécie na costa sudeste do Brasil ocorre Ao sul da Barra de Santos, na região do Bom Abrigo e cabo de Santa Marta Grande, as medianas de comprimento tenderam a ser menores do que para as outras áreas.…”

Section: Bairdiella Ronchusunclassified

Morfologia e distribuição de peixes da família Sciaenidae no estágio de transformação na costa sul e sudeste do Brasil

Ninin¹

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Contribuição para o conhecimento da biologia de Cynoscion jamaicensis (Vaillant & Bocourt, 1883), na área entre Cabo de São Tomé (22º04's) e Torres (29º21'S), Brasil

Abstract: SynopsisData were obtained from 1891 specimens of

Cited by 5 publications

References 10 publications

Condition factor in nine species of fish of the Characidae family in the upper Paraná River floodplain, Brazil

Condition factor in nine species of fish of the Characidae family in the upper Paraná River floodplain, Brazil

Does the closed fishing season influence the ichthyofauna consumed by Larus dominicanus?

Morfologia e distribuição de peixes da família Sciaenidae no estágio de transformação na costa sul e sudeste do Brasil

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