Ž . Ž . In spawning catfish Heteropneustes fossilis, seminal vesicle SV plasma SVP , testicular Ž . Ž . plasma TP and blood plasma BP all showed considerable differences in physical and chemical Ž . Ž . characteristics. SVP is more viscous 4.61"0.08 centipoise , and its specific gravity 1.06"0.003 Ž y1. and osmolality 277.4"8.32 m osmol kg are significantly higher than BP and TP. SVP has a Ž . ...

Mass mortality of stinging catfish, Heteropneustes fossilis, was observed in a fish farm of Kulgaria, Burdwan in West Bengal, India. The cumulative mortality rates reached up to 5% of the total fish in the farm per day. The clinical signs of the affected fish showed ulcers on the skin which gradually grew in size and progressed to form ulcerous dermatitis. Clinical signs of catfish experimental...

Mass mortality of stinging catfish, Heteropneustes fossilis, was observed in a fish farm of Kulgaria, Burdwan in West Bengal, India. The cumulative mortality rates reached up to 5% of the total fish in the farm per day. The clinical signs of the affected fish showed ulcers on the skin which gradually grew in size and progressed to form ulcerous dermatitis. Clinical signs of catfish experimental...