The fish community of the Sorocaba River Basin in different habitats (State of São Paulo, Brazil)

Brazilian Journal of Biology

W. Barrella¹  M. Petrere Jr.²  WS. Smith³ 

[1] Pontifícia Universidade Católica;Universidade Estadual Paulista;Universidade Paulista;

关键词: fish fauna;    community dynamics;    diversity;    Sorocaba River;   

DOI  :  10.1590/S1519-69842009000500005

来源: DOAJ

【 摘 要 】

A fish assemblage study was accomplished in different habitats of the Sorocaba River Basin. Fish were caught with gillnets, were weighed (weight total - g) and measured (standard length - mm). Several abiotic variables of selected sampling sites were measured in order to characterise their habitats in order to attempt establishing correlations with fish community traits. Fish numbers per species were adjusted to the lognormal and logseries species/abundance models The fish community totaled 38 species, distributed in 28 genera, 14 families and 4 orders. Diversity was calculated both in number and in weight and both presented higher values in better preserved sites. We did not detect any statistical differences between dry and rainy seasons. We also concluded that the abundance distribution was not influenced by abiotic variables.

【 授权许可】

Unknown