Structure and Dynamics of Fish Assemblages in a Tidal Creek Environment

Brazilian Archives of Biology and Technology

Ana Lúcia Vendel²  Henry Louis Spach¹  Sabine Granado Lopes¹  César Santos² 

[1] ,Universidade Federal do Paraná Depto. de Zoologia Curitiba PR ,Brasil

关键词: Tidal creek;    fish assemblages;    seasonal variation;    Brazil;   

DOI  :  10.1590/S1516-89132002000300015

来源: SciELO

【 摘 要 】

Studies were carried out on structure and dynamics of fish assemblages in the Baguaçu tidal creek, Paranaguá Bay, Brazil. A total of 30,104 fish were captured, comprising 21 families and 47 species. Both in weight and in number, the species Anchoa parva prevailed. Monthly captures in number and weight were largest in the autumn and part of the winter. No seasonal tendency was observed in the indexes of community structure. The dendrogram produced by the classification of the samples separated the 12 months of collection into three groups, reflecting differences in the qualitative and quantitative occurrences of the most important taxa. Some ecological likeness, not only seasonal patterns of abundance, seemed evident in the seasonality of the groupings of species revealed through the cluster analysis. The principal component analysis reflected mainly the periods of rain and drought

【 授权许可】

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