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Estrutura Populacional e Reprodução do Anujá Trachelyopterus galeatus, (Linnaeus, 1766), em Uma Área de Uso Sustentável da Zona Costeira Amazônica

2016; UNIVERSIDADE FEDERAL DO AMAPÁ; Volume: 6; Issue: 2 Linguagem: Inglês

10.18561/2179-5746/biotaamazonia.v6n2p41-49

ISSN

2179-5746

Autores

Daniel Gomes de Sousa, Nayara Cristina Barbosa Mendes, Luciano de Jesus Gomes Pereira, Suélly Cristina Pereira Fernandes, Bianca da Silva Bentes,

Tópico(s)

Aquaculture Nutrition and Growth

Resumo

Trachelyopterus galeatus locally nown as 'Anuja' or 'cachorrinho', is included of fish species that inhabit conservation areas of Amazonian coastal, among which the Extractive Marine Reserve Tracuateua Para, Brazil. Samples were collected between April 2014 and April 2015, during new moon with longline and falling gear. In total, 130 specimens were captured of T. galeatus , 66 males (50.77%) and 64 females (49.23%). Largest individual already reported in the literature was found. Males were larger and heavier than females. The sex ratio was one male for each female. The higher frequency of T. galeatus was rainy season, and the females who obtained the highest absolute and relative frequencies to the class 9-12 (cm). In morphometric relationships, all correlations were allometric negative. Highest frequencies occurred in the rainy season, when males and females were mature, exhausted ou in rest. Keywords: Auchenipteridae; Extractive Reserve; sex ratio ; bioecology.

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