A contribution of crustacean isopodoa, bacterial infections and physicochemical parameters in mass mortalities among fishes in Lake Qarun.

摘要

ABSTRACT Tilapia zilli and Solea vulgaris live fish were collected from Lake Qarun, El Fayoum governorate, during mass mortality at summer season. The main clinical sings of infected fish were slimy dark skin with signs of asphyxia, presence of hemorrhagic lesions on the skin, fins, and gills. Investigation of T. zilli fish revealed that either bilateral and/or unilateral infection of their gill chambers with one species of Cymothoidae identified as Nerocila orbignyi. Bacterial isolation identi.