Habitat, distribuição e aspectos adaptativos de peixes da microbacia do ribeirão Grande, Estado de São Paulo, Brasil - DOI: 10.4025/actascibiolsci.v26i1.1656

Francisco Manoel de Souza Braga

doi:10.4025/actascibiolsci.v26i1.1656

Habitat, distribution and adaptation features of fishes in ribeirão Grande microbasin, state of São Paulo, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1656

Francisco Manoel de Souza Braga Unesp Rio Claro

DOI: https://doi.org/10.4025/actascibiolsci.v26i1.1656

Abstract

The ichthyofauna of ribeirão Grande microbasin that runs through one of the few remaining fragments of Atlantic Forest (in Mantiqueira mountain range, Valley of Paraíba) was studied. Fish samples were obtained with an electric fishing powered by a maximum capacity generator of 155 V and 60-Hz alterning current, gill-nets and traps. In three collecting days, during July/2001, October/2001, January/2002 and April/2002, 2865 fishes were sampled. These fishes belonged to 12 families, 23 genera and 37 species. The species were more abundant between the piedmont and the plain of the Valley of Paraíba. The Characidium, Trichomycterus genera and the Imparfinis minutus species presented only one ovary or testis and no swim bladder. The ecological significance of morphological features in stream mountain fishes was used to predict the niche adaptation for those conditions, towards K-strategy

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Author Biography

Francisco Manoel de Souza Braga, Unesp Rio Claro

Possui graduação em História Natural pela Faculdade de Filosofia Ciências e Letras de Rio Claro (Instituto Isolado) (1973), mestrado em Oceanografia (Oceanografia Biológica) pela Universidade de São Paulo (1978) e doutorado em Oceanografia (Oceanografia Biológica) pela Universidade de São Paulo (1982). Em 1995 prestou concurso para professor livre-docente, tornando-se professor adjunto e em 2005 tornou-se professor titular por concurso pela Universidade Estadual Paulista Júlio de Mesquita Filho. Tem experiência em biologia pesqueira de peixes marinhos e continentais e atualmente tem trabalhado em biologia populacional e ecologia de peixes de riachos.

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Published

2008-04-01

How to Cite

Braga, F. M. de S. (2008). Habitat, distribution and adaptation features of fishes in ribeirão Grande microbasin, state of São Paulo, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1656. Acta Scientiarum. Biological Sciences, 26(1), 31-36. https://doi.org/10.4025/actascibiolsci.v26i1.1656

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Issue

Vol 26 No 1 (2004)

Section

Biology Sciences

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