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Memórias do Instituto Oswaldo Cruz

Print version ISSN 0074-0276On-line version ISSN 1678-8060

Mem. Inst. Oswaldo Cruz vol.84  suppl.4 Rio de Janeiro  1989

https://doi.org/10.1590/S0074-02761989000800013 

Associação e distribuição das espécies de peixes na laguna de Marapendi, Rio de Janeiro, no período de março de 1985 a fevereiro de 1987

José V. Andreata1 

Adriana M. Saad1 

Luiz R. R. Barbiéri1 

Universidade Santa Úrsula, Departamento de Biologia Animal, Rio de Janeiro, Brasil


ABSTRACT

From March 1985 to February 1987 montly cast net and beach seine sambles were collected at the Marapendi lagoon, Rio de Janeiro, Brazil, to describe its ichthyofauna and analyze associations between species and their distribution in areas with different salinity regimes. A stratified random sampling design was used and the lagoon diveided in four areas (1-4) according to salinity gradient. The "Bravais-Pearson" correlation index was utilized to analyze the similarity between species and between areas and also group them according to the UPGMA method. According to the results eight species groups were established. The majority of the species were wuryhaline, having a marine origin and were distributed in areas 1, 2 and 3 (high salinity areas). The formation of smaller groups with species of fresh water origin, which occurred in areas 2, 3 and 4 is also discussed.

 

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