Metazoan Parasites of Bleak (Alburnus alburnus), Crucian Carp (Carassius carassius) and Golden Carp (Carassius auratus) in Enne Dam Lake, Turkey

Three species of fish, namely bleak (Alburnus alburnus), Crucian carp (Carassius carassius) and golden carp (Carassius auratus) were collected from Enne Dam Lake (Turkey) and examined for parasitic infections. The most common fish species was A. alburnus followed by C. carassius and C. auratus. Three species of Monogenea (Dactylogyrus fraternus, Dactylogyrus alatus and Paradiplozoon homoion) were recorded from the gills of A. alburnus whilst the monogeneans Dactylogyrus anchoratus and Gyrodactylus katherineri and the nematode Contracaecum sp. were found infecting C. carassius and C. auratus. There was a significant positive correlation between fish length, fish weight and infection rate in Crucian carp. However, no clear correlation existed between length, weight and parasite infections in bleak. In addition, a significant negative correlation was found between water temperature and Contracaecum sp. infections in golden carp.