Abstract

The reproductive characteristics of the females of the Black Sea turbot Scophthalmus maeoticus were studied on the materials collected in 2007–2018 at the south-western shelf of the Crimean Peninsula. The spawning of the Black Sea turbot in this area lasts for two months on average, from the second decade of April to the end of the first decade of June; the most intensive spawning is observed during the first and the second decades of May. The average number of vitellogenic oocytes is 4368 thousands per female (average somatic body weight of 2.96 kg); these oocytes form potential fecundity before the spawning starts. On average, 73% of potential fecundity (3189 thousand oocytes) is realized during the spawning period. The vitellogenic oocytes remaining in the ovaries undergo resorption for 2–3 months after spawning. Batch fecundity averages 412 thousand oocytes (12.9% of realized fecundity); according to our estimates, each female spawns seven to eight times on average during the spawning season.

中文翻译：

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克里米亚半岛西南大陆架黑海大菱S（Scophthalmidae）的生殖力的形成与实现

摘要

黑海大菱S（Scophthalmus maeoticus）雌性的生殖特征对克里米亚半岛西南架子2007-2018年收集的材料进行了研究。从4月的第二个十年到6月的第一个十年结束，黑海Sea鱼在该地区的产卵平均持续两个月。在5月的第一个和第二个十年中观察到了最密集的产卵。每位女性的平均卵黄卵母细胞数量为4368千（体细胞平均体重为2.96 kg）；这些卵母细胞在产卵开始之前就形成了潜在的繁殖力。在产卵期间平均实现了73％的潜在繁殖力（3189千个卵母细胞）。产卵后保留在卵巢中的卵黄卵母细胞吸收2-3个月。批量繁殖力平均为41.2万个卵母细胞（占已实现繁殖力的12.9％）；根据我们的估计，