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Use of mangrove habitat for reproductive activity by the fish assemblage in the Guaratuba Bay, Brazil ArchiMer
Chaves, P; Bouchereau, Jl.
The role played by a southwestern Atlantic mangrove in the breeding activity of estuarine fishes was evaluated. This fish assemblage represented 85 % of the total catches of the experimental fishery surveyed between 1993 and 1997. To evaluate the maturation and spawning processes, qualitative (macroscopic stages of maturation) and quantitative (gonadosomatic index) attributes were considered which were combined in a reproductive activity index. Four types of occupation were found in the mangrove, according to the reproductive patterns presented by each species. It was estimated that the Guaratuba mangrove is used as a spawning site - either regularly or occasionally - by about 40 % of the species, that make up 41 % to 46 % of the total abundance of this...
Tipo: Text Palavras-chave: Modes de reproduction; Mangrove; Assemblage de poisson; Espèces migrantes et résidantes; Reproduction patterns; Mangrove; Fish assemblage; Migrant and resident species.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00324/43562/44059.pdf
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