EGG DEVELOPMENT AND HATCHED LARVAE OF A CHAETODONTID FISH, CHAETODONTOPLUS SEPTENTRIONALIS (TEMMINCK ed SCHLEGEL)
نویسندگان
چکیده
منابع مشابه
On the Food of the Salmonoid Fish , Ayu (Plecoglossus altivclis Temminck & Schlegel). II
The present paper, as we have mentioned in the previous report, embodies our more extensive studies concerning the food of the Ayu and also its food-habit as to whether it changes or not according to the ages¤ locality, or season. In the young stage, living in the sea or lake, Ayu feeds entirely on zooplankton (Copepoda, Ostracoda, Phyllopoda etc.); and also on the similar matters until it has ...
متن کاملEgg Development of the Ussurian Bullhead Fish, Leiocassis ussuriensis (Pisces: Bagridae) and Morphological Development of Its Larvae and Juveniles
This study was examined the ovogenesis of Ussurian bullhead, Leiocassis ussuriensis and the morphological development of its larvae and juveniles and to use the results as basic information for the preservation of species and resource enhancement. For artificial egg collection, human chorionic gonadotropin (HCG) was injected at a rate of 10 IU per gram of fish weight. During breeding period, wa...
متن کاملiranian efl learners’ pragmatic development: a study of proficiency and textbook effect
در تحقیق حاضراین پرسش که آیا دانش کاربرد شناسی زبان آموزان ایرانی همگام با پیشرفت بسندگی زبانی آنها افزایش می یابد مورد مطالعه قرار گرفته و هم چنین به این پرسش که آیا زبان آموزان تعلیم دیده از طریق کتاب های تاپ ناچ و اینترچینج تفاوت معناداری از لحاظ سطح دانش کاربرد شناسی دلرند ، پاسخ داده شده است. در این تحقیق55 فراگیر زبان انگلیسی به عنوان زبان دوم ازطریق نمونه گیری در دسترس مورد مطالعه قرار گ...
Nephroblastomas in the Japanese Eel , Anguilla japà 3 nica Temminck and Schlegel 1
Nephroblastomas were observed in 50 Japanese eel reared at a farm for 5 to 9 months from 1989 after collection in the wild. The tumors, arising from the trunk kidney near the anus, were noted externally as abdominal swellings and varied in size from 30 to 75 mm in maximum diameter. Most were elastic, solid, and well encapsulated. Histologically, the nephroblastomas were composed of combinations...
متن کاملGenetic heterogeneity of betanodaviruses in juvenile production trials of Pacific bluefin tuna, Thunnus orientalis (Temminck & Schlegel).
Pacific bluefin tuna, Thunnus orientalis (Temminck & Schlegel), is one of the most important commercially exploited fish species in the world, and juvenile production techniques have been developed for its culture and stock enhancement in Japan. However, recent juvenile production has often failed because of the occurrence of viral nervous necrosis caused by betanodaviruses. In this study, we e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1960
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.26.227