Red snapper Lutjanus argentimaculatus (Forsk., 1775) is infected by the trematodes, cestodes, acanthocephala, nematode larvae and adults which cause damage to the intestine, stomach, liver, visceral mesenteries, kidney and spleen of the fish. Infection rate of nematode larvae found to be very heavy and produces destruction of all layers of stomach and intestine along with fibrosis of visral wall. Acanthocephala may also badly affect the gastric mucosa and granulomatous lesions are produced at the site of penetration and perforation was also produced with large granulomas on serous surface....

The presence of large number of parasites is dangerous for a fish population, causes great loss of fisheries and fishing industry. Economic aspects of parasitic effects on fishes are mass mortality, weight losses, reduction in fish population and size of catches. Fish disease due to helminth parasites has an indirect and direct effect on the productivity of fish and on human health. The main aim of present work is to provide knowledge about the seasonal variation, intensity of parasitic infection, effect of length and sex on the infestation rate as well as parasitic communities found in this...