Study of metazoan parasite infections of Rastrelliger kanagurta (Cuvier, ۱۸۱۶) fish collected from the coast of Sistan and Baluchestan (Chabahar)

A total of ۶۱ fish of Rastrelliger kanagurta were caught from the coasts of Sistan and Baluchestan Province (Chabahar) in the summer of ۲۰۱۹ to study parasites. immediately transported to the Aquatic Research Laboratory of Shahid Beheshti University by a styrofoam cooler containing ice. The total length and weight of the fish were measured. Various organs of the fish including gills, eyes, stomach, pyloric appendages, gonads and intestines were examined. Isolated parasites were fixed in ۷۰% alcohol and ۱۰% formalin. In this study, two parasites of the digen taxonomy, including Lecithocladium angustiovum and prodistomum oriental were identified with a prevalence rate of ۱۰۰ and ۲۶.۴%, respectively, An indomazocraes parasite in the monogenic taxonomy, and mazocraeidae family in the digen taxonomy were identified with a prevalence of ۱.۹%. Also, the study of the severity of infection of Digen parasites in different organs of fish showed that the Diges parasite of the genus Lecithocladium had the highest severity of infection (۱۷.۳ ۱۶ ۱۶.۱) in the stomach. Identification and evaluation of the level of infection of these parasites have little effect on fish mortality. These are more important in terms of biodiversity and ecology.

کلیدواژه ها:

digenea ، Lecithocladium ، monogenea ، Mazocraeidae