Estuarine ichthyofauna of the Paraguaçu River, Todos os Santos Bay, Bahia, Brazil

Biota Neotropica

José Amorim Reis-filho²  José De Anchieta Cintra Da Costa Nunes²  Amanda Ferreira¹ 

[1] ,Universidade Federal da Bahia Programa dePós-graduação em Ecologia e Biomonitoramento Salvador BA ,Brasil

关键词: inventory;    estuarine fishes;    spatial distribution;    effects upstream;    brazilian northeast;    inventário;    peixes estuarinos;    distribuição espacial;    efeitos a montante;    nordeste brasileiro;   

DOI  :  10.1590/S1676-06032010000400034

来源: SciELO

【 摘 要 】

Estuaries are areas of recognized importance in the development and sanctuaries of fishes and also a great source of fishing resources. This article presents an inventory of fishes from the Paraguaçu River estuary, Todos os Santos Bay, Bahia, Brazil. 28 points comprising the saline sections that may exist in a tropical estuary were sampled quarterly from March 2009 to February 2010 with the aid of bottom gill nets, surface gill nets, seine net and casting net. A total of 4.097 individuals were captured, belonging to 7 species of Chondrichthyes and 117 species of Actinopterygii (83 genera and 49 families). Most of the geographical extent of the estuary was sampled by assessing large spatial variability in fish assemblage structure. The curve of species accumulation (rarefaction) had stabilization with ½ of the samples. The general structure of the assemblage is described and commented trough evidences for a new spatial organization of the fish fauna due to dam effects upstream the estuary.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License