Who inhabits the world’s deepest crater lake? A taxonomic review of Corbicula (Bivalvia: Cyrenidae) clams from Lake Toba, North Sumatra, Indonesia,Journal of Zoological Systematics and Evolutionary Research

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Who inhabits the world’s deepest crater lake? A taxonomic review of Corbicula (Bivalvia: Cyrenidae) clams from Lake Toba, North Sumatra, Indonesia
Journal of Zoological Systematics and Evolutionary Research ( IF 2.0 ) Pub Date : 2020-10-21 , DOI: 10.1111/jzs.12428
Yulia V. Bespalaya ₁ , Olga V. Aksenova ₁ , Mikhail Yu. Gofarov ₁ , Alexander V. Kondakov ₁ , Alexander V. Kropotin ₁ , Oleg D. Kononov ₁ , Ivan N. Bolotov ₁

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North Sumatra's Lake Toba is a famous example of a supervolcano caldera, being the world's deepest and largest crater lake. It has been originated since the massive Toba eruption of 74,000 years ago that coincides with global environmental shifts and a significant bottleneck in the global human population. While the freshwater fauna of this lake does not share high levels of endemism, there is Corbicula tobae, an Asian clam species that was described as a taxon endemic to Lake Toba. Here we confirm the validity of this species using morphological, anatomical, and DNA‐based evidences, although the general species‐level concept for this genus is yet to be developed. Additionally, Corbicula leana, a widespread invasive species, was recorded from Lake Toba for the first time. These two species living in sympatry in Lake Toba appear to exploit different ecological niches within the lake.

中文翻译：

谁居住在世界上最深的火山口湖中？来自印度尼西亚北苏门答腊多巴湖的Corbicula（双壳纲：Cyrenidae）蛤的分类学评论

北苏门答腊的多巴湖是超级火山口的著名例子，是世界上最深，最大的火山口湖。它始于74,000年前的鸟羽大爆发，当时正值全球环境变化和全球人口严重瓶颈的时期。尽管该湖的淡水动物区系没有很高的特有度，但还有一种名为Corbicula tobae的亚洲蛤lam物种，被称为多巴湖特有的分类单元。在这里，我们使用形态学，解剖学和基于DNA的证据来确认该物种的有效性，尽管该属的一般物种级概念尚待开发。此外，Corbicula leana是首次从鸟羽湖记录到的入侵物种。生活在鸟羽湖中的这两个物种似乎利用了湖中不同的生态位。

更新日期：2020-10-21

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