Examination of feeding biology of Hemiculter leucisculus in the Sefidrood River, southwestern Caspian Sea basin, northern Iran
- سال انتشار: 1393
- محل انتشار: دومین کنفرانس ماهی شناسی ایران
- کد COI اختصاصی: ICII02_190
- زبان مقاله: انگلیسی
- تعداد مشاهده: 210
نویسندگان
Department of Fisheries, Faculty of Natural Resources, .Tguilan. University
Department of Fisheries, Faculty of Natural Resources, .Tguilan. University
Department of Fisheries, Faculty of Natural Resources, .Tguilan. University
Department of Fisheries, Faculty of Natural Resources, .Tguilan. University
چکیده
The Hemiculter leucisculus, is a non-indigenous fish in the Caspian Sea basin. Inpresent study, feeding biology of this species was investigated using sampling atmonthly intervals throughout the year from the Sefidrood River. In total 235individuals of H. leucisculus, were caught from the Sefidroo River in thesouthwestern Caspian Sea basin, northern Iran. Relative length of gut, Gastro-somaticindex, Vacuity index and Feeding intensity with respect to season, were measuredthe Relative length of gut for four total length groups < 9.45, 10-13.5, 14-17.5 cmand > 17.5 cm were 0.936, 0.819, 0.921 and 0.863, respectively, showing that therewas no major shift from the carnivorous orientation of the fish during its various lifestages. Feeding intensity was high in early gonad maturity (July) and post spawningstages (September) and was relatively lower in the specimens with ripe gonads(August). There was no significant difference in feeding intensity among youngerand adult specimens.کلیدواژه ها
Carnivorous, Feeding intensity, Relative length of gut, Sefidrood,Sawbellyاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.