Abstract

This paper presents a preliminary analysis of the morphological, physiological, and biochemical parameters of somatic growth in the Black Sea scallop, Flexopecten glaber ponticus Bucguoy, Dautzenberg et Dollfus 1889, from a coastal site near Sevastopol, Crimea. The species is one of the few marine Black Sea mollusks listed in the Red Book of Sevastopol and Crimea with the status “Diminishing in numbers.” The peculiarities of soft tissue somatic growth have been studied in three size groups differing in linear diameter: 13–17, 21–24, and 25–30 mm. An analysis of the total RNA in tissue homogenates has shown that the rate of protein synthesis in the first and second groups (under-yearlings) is 1.2–1.5 times higher compared to adults. The population reveals seven color morphs (phenotypes). Three phenotypes (beige, violet, and gray-and-brown) are characterized by high-level protein synthesis. Mollusks of a mixed “multi” phenotype have the lowest level of tissue biosynthesis, usually being 2.5 times lower than that for other morphs. The results obtained indicate that the growth processes are linked to the color of the mollusk shell. High direct correlations between the weights of the total wet mass and the tissue mass observed in all mollusk groups may be evidence of positive growth allometry.

中文翻译：

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黑海软体动物（Pivalinidae，双壳纲）的体长和年龄特征及体表生​​长的表型特征

摘要

本文对黑海扇贝Flexopecten glaber ponticus体细胞生长的形态，生理和生化参数进行了初步分析。Bucguoy，Dautzenberg等人，1889年，来自克里米亚塞瓦斯托波尔附近的沿海地区。该物种是塞瓦斯托波尔和克里米亚红皮书中列出的少数几个海洋黑海软体动物之一，其状态为“数量减少”。已经研究了三个不同线性直径的大小组的软组织体细胞生长的特殊性：13–17、21–24和25–30 mm。对组织匀浆中总RNA的分析表明，第一组和第二组（一岁以下）的蛋白质合成速率是成人的1.2-1.5倍。种群揭示了七个颜色形态（表型）。三种表型（米色，紫色和灰色和棕色）的特征在于高级蛋白质合成。混合“多”表型的软体动物具有最低的组织生物合成水平，通常为2。比其他变形低5倍。获得的结果表明，生长过程与软体动物壳的颜色有关。在所有软体动物组中观察到的总湿重和组织重量之间的高度直接相关性可能是正增长的异速生长的证据。