Estrutura populacional dos camarões simpátricos Potimirim glabra e Potimirim potimirim (Crustacea, Decapoda, Atyidae) no rio Sahy, Rio de Janeiro, Brasil

Abstract

ABSTRACT. Populational structure of the sympatric freshwater shrimps Potimirim glabra and Potimirim potimirim (Crustacea, Decapoda, Atyidae) in the Sahy River, Rio de Janeiro, Brazil. The aim of this work was to get some knowledge about the populational structure of the two sympatric freshwater shrimp species, Potimirim glabra (Kingsley, 1878) and Potimirim potimirim (Müller, 1881) in the Sahy River, Mangaratiba, Rio de Janeiro, Brazil. The specimens were sampled monthly from September 1997 to February 1999 b…