Digeneans have a heteroxenic life cycle, their impact is not limited to the definitive host, which harbours the sexual adults, but is extended to the first host (mollusc) and to the second host (fish). Within the first host, 'larval' stages of digenean parasites invade the gonads, resulting in its castration, then exhaustion and eventually death. The diversion of energy from the second hosts towards the parasites forces them to intensify their search for food, resulting in decreased fitness and an increased risk of being eaten; in addition, manipulation of the host's behaviour by parasites drives this host into the food chain of the definitive host. The present study aims to perform the survey of digenean parasites of two marine fishes Gazza achlamys and Ariomma indica from Visakhapatnam coast, South east coast of India. Samples were made for two years. Altogether, two species were observed.
