Spatial and temporal variations of diurnal ichthyofauna on surf-zone of São Francisco do Itabapoana beaches, Rio de Janeiro State, Brazil

Brazilian Archives of Biology and Technology

Marcelo Paes Gomes¹  Miguel Siano Cunha¹  Ilana Rosental Zalmon¹ 

[1] ,Universidade Estadual do Norte Fluminense Centro de Biociências e Biotecnologia Laboratório de Ciências AmbientaisCampos dos Goytacazes RJ ,Brazil

关键词: Spatial and temporal variations;    community ichthyofauna structure;    surf-zone;    environmental variables;    north coast of Rio de Janeiro;   

DOI  :  10.1590/S1516-89132003000400020

来源: SciELO

【 摘 要 】

Spatial and temporal variations of diurnal ichthyofauna and the environmental variables influences on its distribution were studied at the surf-zone of three beaches of São Francisco do Itabapoana, northern coast of Rio de Janeiro, Brazil. From August/1999 to August/2000, three beach seine hauls were made monthly, and environmental variables were recorded. A total number of 4,562 fishes (74,155g) were sampled at the three beaches, where estuarine-dependent species prevailed (44%), followed by marine (31%), estuarine (19%) and freshwater species (3%). Species richness, number of individuals and wet weight were significantly higher at Gargaú, followed by Manguinhos and Barra do Itabapoana, respectively. Canonical Correspondence Analysis highlighted influences of the rivers flushing, salinity and plant abundance on the diurnal ichthyofauna distribution and dynamics of São Francisco do Itabapoana surf-zone.

【 授权许可】

CC BY-NC   
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