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

Association and distribution of fishes in the Marapendi lagoon, Rio de Janeiro, from March 1985 to February 1987

Marapendi lagoon; Rio de Janeiro; different species of fish; gradients; ichthyofauna distribution; salinity

ABSTRACT

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

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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Datas de Publicação

• Publicação nesta coleção
  24 Jun 2009
• Data do Fascículo
  1989