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Revista Brasileira de Zoologia

Print version ISSN 0101-8175

Rev. Bras. Zool. vol.18 no.3 Curitiba Sept. 2001 

Potencial atrator de tubarões costeiros em recife artificial no litoral norte do estado do Rio de Janeiro, Brasil


Attractive potential of coastal sharks in artificial reef on the Northern Coast of Rio de Janeiro State, Brazil



Vicente Vieira FariaI,II; Ronaldo NovelliI; Marcelo Paes GomesI; Ilana Rosental ZalmonI,III

ILaboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense. Avenida Alberto Lamego 2000, 28015-620 Campos dos Goytacazes, Rio de Janeiro, Brasil




Artificial reefs have been used in many countries to increase coastal fishery productivity. In order to increase fish attraction to the Northern Coast of Rio de Janeiro State, it was installed an artificial reef (1,500 m2) 5 nautical miles off Manguinhos's Bay (São Francisco de ltabapoana, Rio de Janeiro). The artificial structures were made of tires, concrete and cement blocks. A gill net of 125 x 3 m was monthly used in the artificial reef (AR) and in a control area (CA) to determine the effect of the experimental structures on the stock and diversity of coastal sharks. Considering the complexity of a sustainable elasmobranch exploitation, sharks were focused in this study. During 24 months of investigation (April/96 to March/98), a total of 325 individuais distributed in four shark species were captured in the two areas (AR and CA): Mustelus higmani (Springer & Lowe, 1963) (AR = 70; CA = 82 individuals), Rhizoprionodon lalandii (Valenciennes, 1839) (AR = 86; CA = 56 individuals), R. porosus (Poey, 1861) (AR = 16; CA = 14 individuals) and Carcharhinus brachyurus (Günther, 1870) (AR = 1 individual). The attractive potential of the artificial reef is suggested by the predominance of the shark R. lalandii in the reef complex after the first year of monitoring, with the increase of the structures.

Key words: Artificial reefs, coastal sharks, Rio de Janeiro State Northern Coast



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AGRADECIMENTOS. Os autores agradecem a Flavio A. Gomes, Eduardo G. Souza, Antônio C. Pessanha, pescadores Eraldo e Jorge pelo apoio durante as amostragens. Agradecemos também as revisões críticas do manuscrito, realizadas por Carlos R. Ruiz-Miranda, Leandro R. Monteiro, Ana Paula Di Beneditto, Sérgio R. Floeter e dois revisores anônimos. Este estudo teve suporte financeiro do CNPq, FAPERJ e FENORTE.



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Recebido em 30.III.2001; aceito em 30.VII.2001.

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