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Ecology and ethnoecology of dusky grouper [garoupa, Epinephelus marginatus (Lowe, 1834)] along the coast of Brazil.

Begossi A, Silvano RA - J Ethnobiol Ethnomed (2008)

Bottom Line: Much of the information found in the literature concerns Mediterranean dusky groupers.We conclude that precautionary approaches and 'data-less' management approaches are needed in the coast of Brazil.Research on this species and on the potential of aquaculture for its cultivation, are urgent, due to the apparent vulnerability and decrease of dusky grouper along the coast of Brazil.

View Article: PubMed Central - HTML - PubMed

Affiliation: Fisheries & Food Institute, Rua Coronel Quirino 1636, Campinas, S.P. 13025-002, Brazil. alpinab@uol.com.br

ABSTRACT
Dusky grouper (garoupa, Epinephelus marginatus) is an important catch for several artisanal small-scale fisheries along the Brazilian coast. It is a sedentary, monandric, and late maturing protogynous species, which makes it vulnerable to overharvesting even though it is mainly caught through hook and line or spear fishing through free diving. Lack of information on the ecology and biology of this species in Brazil is astonishing. Much of the information found in the literature concerns Mediterranean dusky groupers. Studies compiling local knowledge (ethnoecology) about fish species complement biological data, and have been fundamental for effective fisheries management. In this study, our objectives are to obtain data about dusky grouper through fish catches and analysis of stomach contents and gonad maturation (macroscopic analyses), along with interviews from fishermen from six small-scales communities from the southern (Pântano do Sul, Florianópolis, Santa Catarina State) to the northern Brazilian coast (Porto Sauípe, Bahia State). We conclude that precautionary approaches and 'data-less' management approaches are needed in the coast of Brazil. Research on this species and on the potential of aquaculture for its cultivation, are urgent, due to the apparent vulnerability and decrease of dusky grouper along the coast of Brazil.

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Weight-Total Length of E. marginatus collected at Bertioga.
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Figure 6: Weight-Total Length of E. marginatus collected at Bertioga.

Mentions: Weight-Length (TL) relationships of the dusky groupers collected in Bertioga and Copacabana are shown through the relationship of Total Length (mm) to Weight (kg) in Figures 6 and 7, respectively. W-TL relationships are represented by the equations:


Ecology and ethnoecology of dusky grouper [garoupa, Epinephelus marginatus (Lowe, 1834)] along the coast of Brazil.

Begossi A, Silvano RA - J Ethnobiol Ethnomed (2008)

Weight-Total Length of E. marginatus collected at Bertioga.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2567293&req=5

Figure 6: Weight-Total Length of E. marginatus collected at Bertioga.
Mentions: Weight-Length (TL) relationships of the dusky groupers collected in Bertioga and Copacabana are shown through the relationship of Total Length (mm) to Weight (kg) in Figures 6 and 7, respectively. W-TL relationships are represented by the equations:

Bottom Line: Much of the information found in the literature concerns Mediterranean dusky groupers.We conclude that precautionary approaches and 'data-less' management approaches are needed in the coast of Brazil.Research on this species and on the potential of aquaculture for its cultivation, are urgent, due to the apparent vulnerability and decrease of dusky grouper along the coast of Brazil.

View Article: PubMed Central - HTML - PubMed

Affiliation: Fisheries & Food Institute, Rua Coronel Quirino 1636, Campinas, S.P. 13025-002, Brazil. alpinab@uol.com.br

ABSTRACT
Dusky grouper (garoupa, Epinephelus marginatus) is an important catch for several artisanal small-scale fisheries along the Brazilian coast. It is a sedentary, monandric, and late maturing protogynous species, which makes it vulnerable to overharvesting even though it is mainly caught through hook and line or spear fishing through free diving. Lack of information on the ecology and biology of this species in Brazil is astonishing. Much of the information found in the literature concerns Mediterranean dusky groupers. Studies compiling local knowledge (ethnoecology) about fish species complement biological data, and have been fundamental for effective fisheries management. In this study, our objectives are to obtain data about dusky grouper through fish catches and analysis of stomach contents and gonad maturation (macroscopic analyses), along with interviews from fishermen from six small-scales communities from the southern (Pântano do Sul, Florianópolis, Santa Catarina State) to the northern Brazilian coast (Porto Sauípe, Bahia State). We conclude that precautionary approaches and 'data-less' management approaches are needed in the coast of Brazil. Research on this species and on the potential of aquaculture for its cultivation, are urgent, due to the apparent vulnerability and decrease of dusky grouper along the coast of Brazil.

Show MeSH
Related in: MedlinePlus