ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France.
Aix-Marseille Université, Université de Toulon, CNRS, IRD, MIO UM 110, Mediterranean Institute of Oceanography, Marseille, France.
J Fish Biol. 2022 Feb;100(2):594-600. doi: 10.1111/jfb.14964. Epub 2021 Dec 17.
Reports of morphological differences between European anchovy (Engraulis cf. encrasicolus) from coastal and marine habitats have long existed in the ichthyologic literature and have given rise to a long-standing debate on their taxonomic status. More recently, molecular studies have confirmed the existence of genetic differentiation between the two anchovy ecotypes. Using ancestry-informative markers, we show that coastal anchovies throughout the Mediterranean share a common ancestry and that substantial genetic differentiation persists in different pairs of coastal/marine populations despite the presence of limited gene flow. On the basis of genetic and ecological arguments, we propose that coastal anchovies deserve a species status of their own (E. maeoticus) and argue that a unified taxonomical framework is critical for future research and management.
有关生活在沿海和海洋环境中的欧洲无须鳕（Engraulis cf. encrasicolus）之间形态差异的报告在鱼类学文献中由来已久，并引发了关于其分类地位的长期争论。最近，分子研究证实了这两种无须鳕生态型之间存在遗传分化。利用祖先信息标记，我们表明整个地中海的沿海无须鳕具有共同的祖先，尽管存在有限的基因流动，但在不同的沿海/海洋种群之间仍然存在大量的遗传分化。基于遗传和生态论据，我们提出沿海无须鳕应具有自己的物种地位（E. maeoticus），并认为统一的分类框架对于未来的研究和管理至关重要。
