Occurrence of the alien invasive loach Misgurnus anguillicaudatus in the Iguaçu River basin in southern Brazil: a note of concern.

The article focuses on the occurrence of the alien invasive loach Misgurnus anguillicaudatus in the River basin in southern Brazil. Seven juveniles and one adult M. anguillicaudatus ranging from 63 to 131 mm standard length (SL) were collected between 2000 and 2008 in the shallowest parts of small forested streams, flooded areas, and channel margins of the upper and middle River basin.