Fish assemblages in a tidal flat

Brazilian Archives of Biology and Technology

Ana Lúcia Vendel²  Sabine Granado Lopes¹  César Santos¹  Henry Louis Spach¹ 

[1] ,Universidade Federal do Paraná Departamento de Zoologia Curitiba PR ,Brazil

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

DOI  :  10.1590/S1516-89132003000200015

来源: SciELO

【 摘 要 】

Studies were carried out on fish assemblages in a tidal flat. Samples were obtained monthly at low tide of the half moon in the tidal flat of Paranaguá Bay, Brazil, with two seine nets, one with a 1 mm mesh, 30 m in length and 3 m in height and another with a 10 mm mesh, 65 m in length and 2 m in height. A total of 8,890 fish were captured, comprising 24 families and 53 species. The most abundant species were Harengula clupeola and Atherinella brasiliensis, which represented 63.4% of the total, capture. A seasonal tendency was observed in the abundance of fishes, with less fishes being captured during winter and part of spring. The number of species showed a seasonal pattern, with the gradual decrease through winter and a marked increase in summer. The community structure index indicated seasonal changes in the assemblage. The faunistic similarities between months separated the 12 months into four major groups. The seasonal pattern was apparent in the numerically dominant species and the Cluster Analysis revealed five main groups.

【 授权许可】

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