Эмбриональное и личиночное развитие тихоокеанской трески Gadus macrocephalus Тауйской губы (северная часть Охотского моря)
Эмбриональное и личиночное развитие тихоокеанской трески Gadus macrocephalus Тауйской губы (северная часть Охотского моря)
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巨头鳅 (Macrocephalus) 巨头鳅 (Macrocephalus)
DOI：
10.26428/1606-9919-2015-182-23-37
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Равиль Рашитович Юсупов
中科院分区：
文献类型：
--
作者：
Равиль Рашитович Юсупов
Early embryogenesis and post-embryonic development of pacific cod Gadus macrocephalus Tilesius from the Tauyskaya Bay is investigated in experiment. Its fertilized eggs at stage II had the diameter 1.000-1.250 mm, on average 1.103 ± 0.003 mm. Numerous teardrop-shaped inclusions were observed in plasma of the blastodisk and in the blastomeres, presumably important for prevention of the eggs freezing under low temperature during incubation in vivo . Duration of the embryogenesis in vitro under the temperature 2.2 and 5.2 о C was 490 and 768 hours, respectively. The prelarvae hatched at the length 4.28-5.10 mm, on average 4.34 ± 0.03 mm, and turned to mixed and exogenous feeding in 6 and 10 days, at the mean length 4.97 and 5.18 mm, respectively.
