Toward the conservation of the endemic monotypic fish genus Aulopyge from the Balkan Dinaric karst: Integrative assessment of introduced and natural population,Ecology and Evolution

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Toward the conservation of the endemic monotypic fish genus Aulopyge from the Balkan Dinaric karst: Integrative assessment of introduced and natural population
Ecology and Evolution ( IF 2.3 ) Pub Date : 2020-12-10 , DOI: 10.1002/ece3.7108
Jasmina Ludoški ₁ , Ljubinka Francuski _{1,

2} , Milica Lukač ₃ , Radoslav Dekić ₃ , Vesna Milankov ₁

Affiliation

The complex biogeographical history of the Balkan Peninsula caused remarkable freshwater fish diversity and endemism, among which Cyprinidae fish dominate. The Dinaric karst was a Pleistocene refugium and it harbors ancient and endemic cyprinids, including Aulopyge huegelii, a sole representative of its genus. Being highly distributionally restricted, it faces various threats that promote a critical decline in population abundance and even population extinction. Phenotypic and molecular diversity of the introduced (Šator Lake, Šator Mountain) and natural (Studena River, Duvanjsko Polje) populations of Dalmatian barbelgudgeon from Bosnia and Herzegovina was studied by using two mitochondrial genes and morphometric traits (linear and geometric morphometrics). Nonparametric ANOVA showed that two analyzed populations significantly differed in six linear measurements, except snout length and postorbital head length. Contrary to centroid size, two populations were found to be significantly different in body shape. Deformation grids indicated that individuals from Studena River are characterized by wider and slightly shorter body comparing to individuals from Šator Lake. Incongruence in cytochrome c oxidase subunit I (COI) and cytochrome b (cyt b) mitochondrial DNA (mtDNA) variation was observed since a common COI haplotype was observed, while four and three cyt b haplotypes were registered in Šator Lake and Studena River, respectively. Since it was demonstrated that cyt b mtDNA was a faster evolving gene, we encourage its use in intraspecies studies, especially for evaluating the connectivity of fragmented populations and for studying the evolutionary footprint of the processes incorporated into the distinctive evolution of Aulopyge. Finally, findings herewith provide a firm basis for designing a long‐term sustainable conservation strategy for endemic species in Dinaric karst.

中文翻译：

巴尔干第纳喀斯特特有单种鱼类 Aulopyge 的保护：对引进种群和自然种群的综合评估

巴尔干半岛复杂的生物地理历史造成了显着的淡水鱼类多样性和特有性，其中鲤科鱼类占主导地位。第纳喀斯特地区是一个更新世保护区，栖息着古老和特有的鲤鱼，其中包括该属的唯一代表——Aulopyge Huigelii 。由于分布高度受限，它面临着各种威胁，导致种群数量急剧下降，甚至灭绝。通过使用两个线粒体基因和形态特征（线性和几何形态测定），研究了来自波斯尼亚和黑塞哥维那的引进（Šator 湖、Šator 山）和自然（Studena 河、Duvanjsko Polje）达尔马提亚 barbelgudgeon 种群的表型和分子多样性。非参数方差分析显示，除了口鼻长度和眶后头长度之外，两个分析群体在六种线性测量中存在显着差异。与质心大小相反，发现两个种群的体型存在显着差异。变形网格表明，与来自Šator 湖的个体相比，来自斯图德纳河的个体具有更宽且稍短的身体特征。由于观察到共同的COI单倍型，因此观察到细胞色素c氧化酶亚基 I ( COI ) 和细胞色素b ( cyt b ) 线粒体 DNA (mtDNA) 变异的不一致，而在 Šator Lake 和 Studena River 中分别登记了 4 个和 3 个cyt b单倍型。由于已证明cyt b mtDNA 是一种进化较快的基因，因此我们鼓励其在种内研究中使用，特别是用于评估支离破碎的种群的连通性以及研究纳入Aulopyge独特进化的过程的进化足迹。最后，本文的研究结果为设计迪纳喀斯特特有物种的长期可持续保护战略提供了坚实的基础。

更新日期：2021-01-22

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