Record of morphological deformities in Corydoras aff. longipinnis in two reservoirs under urban influence in Upper Iguaçu and Southern Coastal basins in Paraná State, Brazil

Registro de anomalias morfológicas em Corydoras aff. longipinnis em dois reservatórios sob influência urbana no Paraná, Brasil

Abstract

In this work we report on the presence of morphological deformities in Corydoras aff. longipinnis from two reservoirs in Paraná State, Brazil. The frequency of deformities in the fish populations was 11% in Iraí and 10.5% in Capivari reservoirs. Considering that the frequency may be associated with impacts caused by anthropic activities, this information can be used as a metric in management systems and environmental monitoring.

Keywords:
Anthropization; Corydoradinae; Malformations; Neotropical region; Urban reservoirs