Kozhara A V
Institute of Biology of Inner Waters, Russian Academy of Science, Borok, Nekouzsky raion, Yaroslavskaya Oblast 152742, Russia.
Zh Obshch Biol. 2002 Sep-Oct;63(5):393-406.
The inverstigation of geographical and ecological variations of wide-spread species of daces allows to reveal regular patterns of phenotypic transformations with limited number of their possible ways. The set of characters involved and the directions of their changes are specific for both examined taxa and putative factors of subspeciation. Two basic groups of evolutionary and ecological situations leading to the intensive intraspecific divergence are considered: living or spawning in brackish water and heavy anthropogeneous pollution. Striking morphological similarity was found between populations from zones of hydrochemical anomalies and some remote populations inhabiting non-polluted fresh water bodies. The author discusses possible nature of these isomorphisms and cases of regular phenotype transformation and their implications for microevolutionary and systematic studies in fish. The data obtained suggest key role of water mineralization in evolution of the subfamily of dace fish.
对广泛分布的雅罗鱼种类进行地理和生态变异研究，有助于揭示表型转变的规律模式，且其可能的转变方式数量有限。所涉及的特征集及其变化方向对于所研究的分类群和假定的亚种形成因素而言都是特定的。我们考虑了导致强烈种内分化的两类基本进化和生态情况：在咸淡水区域生活或产卵以及严重的人为污染。在水化学异常区域的种群与一些栖息在未受污染淡水水体中的偏远种群之间，发现了惊人的形态相似性。作者讨论了这些同形现象可能的本质、表型规律性转变的案例及其对鱼类微观进化和系统研究的意义。所获得的数据表明水矿化作用在雅罗鱼亚科进化中起着关键作用。
