Abstract

A hypothesis was advanced and grounded that the total content of eicosapentaenoic (EPA, 20:5n-3) and docosahexaenoic (DHA, 22:6n-3) acids in fish muscle tissue is associated with the species-specific (taxon-specific) duration of embryo development. A meta-analysis of the original and published data was performed using fishes of the families Coregonidae and Salmonidae as an example. Fishes with longer embryo development times, which are observed at lower temperatures, were found to have significantly higher EPA + DHA contents in muscles as compared with the species that belong to the same families but have shorter embryo development times. This association was explained by the fact that an embryo forms more cells per unit tissue volume at lower temperatures, which requires a greater specific amount of cell membranes and, therefore, greater amounts of EPA and DHA to produce them.

中文翻译：

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肌肉组织中多不饱和脂肪酸的含量与鲑鱼（Salmonoidei）中胚胎发育的持续时间有关。

摘要

提出了一个假设，并认为鱼肌肉组织中二十碳五烯酸（EPA，20：5n-3）和二十二碳六烯酸（DHA，22：6n-3）的总含量与特定物种（特定分类群）的持续时间有关胚胎发育。以Coregonidae科和Salmonidae科的鱼类为例，对原始数据和公开数据进行了荟萃分析。在较低温度下观察到的具有较长胚胎发育时间的鱼，与属于相同家族但具有较短胚胎发育时间的物种相比，其肌肉中的EPA + DHA含量明显更高。这种关联可以通过以下事实来解释：胚胎在较低的温度下每单位组织体积会形成更多的细胞，这需要更大的特定数量的细胞膜，因此，