Variação temporal da composição, ocorrência e distribuição dos Copepoda (Crustacea) do estuário do Taperaçu, Pará, Brasil Temporal variation in composition, occurrence and distribution of Copepoda (Crustacea) from Taperaçu estuary, Pará, Brazil
作者： Luci Cajueiro , André Magalhães , Carneiro Pereira , Rauquírio Marinho da Costa
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摘要: -3 ) foram os taxons numericamente mais representativos, sendo as suas densidades correlacionadas de forma significativa apenas com a salinidade. Atraves da analise Cluster, foi constatada formacao um unico grupo (fevereiro, marco, abril e maio), meses janeiro junho ficando isolados, o que ocorreu devido mudancas mensais no balanco das entre quatro principais especies copepodes, demonstrando, dessa forma, processo sucessao estas especies. Palavras-chave: Copepodes planctonicos. Variacao temporal. Estuario. Brasil. Abstract: The present study aimed to investigate temporal variations on the structure of copepod community in Taperacu estuary, Para, Brazil. physical-chemical variables and plankton samplings were gathered from January June 2006, at three fixed stations located along this estuary. Plankton tows accomplished using cylindrical-conical 300 µm mesh net. No significant spatial differences observed abiotic biotic parameters (ANOVA, p > 0.05). Pseudodiaptomus marshi Wright S., 1936 (11.7 ± 14.3 20,909.7 50,527.1 ind.m most abundant taxa, presenting densities significantly correlated with salinity. Cluster analysis indicated formation single group comprised by months February, March, April May, showing grouping formation. This occurred due monthly changes balance for four main species, succession process among these species.
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