(Linnaeus, 1758) on biochemical and nutritional composition levels are altered by infection.

The present study comprises the biochemical and nutritional composition level of control and infected host of with . The healthy species were collected from the Therespuram coast, Southeast coast of India. After the acclimatization period, 15 snails were selected and infected with seven different bacterial pathogens by intramuscular injection.

First occurrence of (Bleeker, 1857) (Isopoda: Cirolanidae) on coral reef fishes along the Tuticorin coastal water, Gulf of Mannar.

Isopod Parasites are considered as a major threat to the fishing industry, due to rigorous disease outbreaks. The parasites from the two economically important reef fish family Lutjanidae and Serranidae are analyzed i.e.

New occurrence of parasitic isopod sp. (Stebbing, 1905) from in the Tuticorin coast, Gulf of Mannar region.

In the present study of captured in gillnets from the inshore waters of Tuticorin, Gulf of Mannar region during December 2014. The present findings represent the first occurrence of sp. and here in reported.