دانلود مقاله Occurrence and prevalence of gill parasites of sturgeons in south west of the Caspian Sea
سال انتشار: ۱۳۸۷
محل انتشار: اولین کنگره بین المللی مدیریت بهداشتی و بیماریهای آبزیان
تعداد صفحات: ۱
S Tavakol – Islamic Azad University- Tonekabon branch
F Aghlmandi – Iranian Fisheries Research Organization
H Akhami – Iranian Fisheries Research Organization
A Ravai – Islamic Azad University- Tonekabon branch
Method & Materials: In this study from March 2007 to June 2008, 122 sturgeons of south west of Caspian Sea, 44 samples of juveniles from freshwater farms and 25 samples of cultured fishes in freshwater were collected and examined for parasitic infection.
Results & Conclusion: Nitzschia sturionis and Diclybothrium armatum (monogenea) were found on then gills, with general prevalence of 8.7% in Acipenser persicus and 25.6% in Acipenser stellatus from sea sturgeons and Trichodina (sp.1 , sp.2) and Ichthyophthirius multifiliis from freshwater sturgeons, were separated. Statistical analysis was carried out according to species, sex, length and weight of fishes. Pathology, morphometric and morphological characters of Nitzschia sturionis were also studied. At the end, we have suggested ways for health management of farms for prevention of parasites entry.