Composition and seasonal variation of the ichthyofauna from upper Rio Paraguaçu (Chapada Diamantina, Bahia, Brazil)

Brazilian Archives of Biology and Technology

Alexandre Clistenes De Alcântara Santos²  Érica Pellegrini Caramaschi¹ 

[1] ,Universidade Estadual de Feira de Santana Departamento de Ciências Biológicas Laboratório de IctiologiaFeira de Santana BA ,Brasil

关键词: Rio Paraguaçu;    Chapada Diamantina;    fish community;    abiotic parameters;    seasonality;   

DOI  :  10.1590/S1516-89132007000400012

来源: SciELO

【 摘 要 】

The aim of this work was to characterize the composition of the ichthyofauna of the upper course of the Rio Paraguaçu. Two excursions were carried out, one in the dry season, and the other in the rainy season, with 36 localities sampled. A total of 63 species were collected. Multivariate analyses indicated that abiotic variables such as the channel order and altitude were the main influences on the number of species present. The number of species in each excursion was equivalent in the two seasons, suggesting that seasonal changes have little influence on the ichthyofauna of this area.

【 授权许可】

CC BY-NC   
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