Carcinofauna acompanhante da pesca do camarão-sete-barbas Xiphopenaeus kroyeri em Macaé, Rio de Janeiro, Sudeste brasileiro

Abstract

This study aimed to analyze the carcino-bycatch of seabob shrimp (Xiphopenaeus kroyeri) in Macaé/RJ, a region influenced by the Cabo Frio upwelling. Samples were collected monthly with a shrimp fishing boat, from July/2010 to June/2011. The carcino-group bycatch was represented by 15 families, 24 genera and 30 species. The families with the highest number of species were Portunidae (7) and Penaeidae (5), representing 23.33% and 16.66% of the total catch, respectively. For each seabob shrimp captured, 2.94 bycatch individuals were caught on average, with the largest discrepant values in summer (1: 4.82) and autumn (1: 5.76). The main components of this carcinofauna (Artemesia longinaris and Pleoticus muelleri) are species with increasing importance as a fishery resource in the region due to their abundance, and need to be continuously studied over diverse aspects of population biology, aiming to improve conservation actions.

Decapod abundance and species richness in the bycatch of Xiphopenaeus kroyeri (Heller, 1862) fishery, Santa Catarina, southern Brazil

“…In our study, the crustacean bycatch was remarkable more for its species diversity than for its biomass. Unlike the majority of bycatch studies, in which the crustacean bycatch biomass is greater than that of the target species (Alverson et al, 1994;Branco and Verani, 2006;Sedrez et al, 2013;Costa et al, 2016), we detected the opposite, with an average X. kroyeri catch considerably greater than the remaining crustacean species, arriving only in November and December a relationship near of 1:1, periods with high rainfall indexes . It is proposed that variation of water temperature and organic matter increase caused an increase in the abundance of species, mainly for reproduction, such as I. sawayai as found by .…”

“…The results presented in this study indicate that the studied environment (which is within a subtropical region) hosts several decapod crustacean species. Remarkably, this region exhibited the same species richness as that observed by Costa et al (2016) in Macaé (RJ). Otherwise, our results have lower richness than studies made in the northern coast of São Paulo state with 41 and 44 species according to Severino- and Fransozo et al (2016), respectively.…”

“…The seabob shrimp Xiphopenaeus kroyeri (Heller, 1862) fisheries in coastal areas catch a high diversity of bycatch causing considerable damage to the environment (Coelho et al, 1986), as observed in studies on the bycatch fauna of K. kroyeri in other regions of Brazil. For example, Rodrigues-Filho et al (2016) have evaluated the seasonal cycles of the carcinofauna caught in seabob shrimp fishing in northeastern Brazil, Costa and Di Beneditto (2009) and Costa et al (2016) have studied on the northern coast of Rio de Janeiro. Graça-Lopes et al (1993a) have analyzed the composition and distribution of decapod crustaceans associated with K. kroyeri fishery in São Paulo state, and Graça-Lopes et al (2002a) and Severino- in Perequê Beach, São Paulo State.…”

“…For each crustacean species, we calculated the total number of individuals and the seasonal abundance. The relative abundance (RA) of each species was calculated as the number of that species divided by the total number of captured individuals (excluding the target species, X. kroyeri) (Costa et al, 2016).…”

Comparação entre a produção pesqueira do camarão branco e a fauna de siris do gênero Callinectes na pesca de zangaria no Munícipio de Raposa, Maranhão – Brasil

“…, 1996;BAPTISTA-METRI et al, 2005;FERNANDES et al, 2006 Santos (2016) estudando a espécie Callinectes ornatus associada a pesca do camarão de sete barbas as CPUES mensais apresentam flutuações sazonais sendo os maiores valores nos meses de abril, maio, julho e outubro, e os menores valores em novembro e dezembro. Costa (et al,2016) no seu estudo voltado para a carcinofauna acompanhante do camarão de sete-barbas a espécie Callinectes ornatus e Callinectes danae foram as mais abundantes e constantes nas áreas de pesca de X. kroyeri.…”