Research Article: Spawning and larval rearing of red sea urchin Salmacis bicolor (L. Agassiz and Desor, ۱۸۴۶;Echinodermata: Echinoidea)
- سال انتشار: 1399
- محل انتشار: مجله علوم شیلات ایران، دوره: 19، شماره: 6
- کد COI اختصاصی: JR_JIFRO-19-6_024
- زبان مقاله: انگلیسی
- تعداد مشاهده: 171
نویسندگان
Sathyabama Institute of Science and Technology
Sathyabama Institute of Science and Technology
Sathyabama Institute of Science and Technology
Sathyabama Institute of Science and Technology
چکیده
Gonads of sea urchin attract consumers due to its high nutritional value than any other seafood delicacies. Aquaculturists are also very keen on developing larval culture methods for large-scale cultivation. The present investigation systematically examined the larval rearing, development, survival and growth rate of Salmacis bicolor fed with various microalgal diets under laboratory condition. Fertilization rate was estimated as ۹۵%. The blastula and gastrula stages attained at ۸.۲۵ h and ۲۳.۱۰ h post-fertilization. The ۴ - armed pluteus larvae were formed with two well - developed post-oral arms at ۴۴.۲۰ h following post-fertilization. The ۸ - armed pluteus attained at ۹ days post fertilization. The competent larva with complete rudiment growth was developed on ۲۵th days post - fertilization. Monodiet algal feed - Chaetoceros calcitrans and Dunaliella salina resulted medium (۵۰.۶ ± ۲.۷%) and low survival rate (۳۶.۸ ± ۱.۷%) of S. bicolor larvae. However, combination algal feed – Isochrysis galbana and Chaetoceros calcitrans has promoted high survival rate (۶۸.۳ ± ۲.۵%) which was significantly different between the mono and combination diet. From the observations of the study, combination diet could be adopted as an effective feed measure to promote the production of nutritionally valuable roes of S. bicolor.کلیدواژه ها
Sea urchin, Salmacis bicolor, Spawning, Embryo, Larvae, Microalgaeاطلاعات 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.