A revision of the crustacean genus Eurycercus with genetic and morphological evidence for a new species, Eurycercus beringi, from Alaska, 2011

This data contains genetic sequences of crustaceans from the mitochondrial genome in support of the discovery and description of a new species of crustacean in Alaska, Eurycercus beringi.
We carried out a detailed anatomical and genetical analysis of Holarctic crustaceans of the freshwater genus Eurycercus in order to understand the biodiversity and potential implications of recent environmental change and surface water loss in the Arctic. We described new species and revised the subgenus. The genus is an important source of food for fish, waterfowl, and wading birds. Eurycercus is also used in paleolimnology to reconstruct past environmental conditions. We aimed for thorough geographic coverage of subarctic and arctic Siberia, Greenland, Alaska and Canada. The genetic results support the revision of the genus Eurycercus and the novel species E. beringi.

本数据集收录了源自线粒体基因组（mitochondrial genome）的甲壳动物遗传序列，用以支持阿拉斯加新种甲壳动物*Eurycercus beringi*的发现与物种描述工作。
本研究针对全北界淡水平突蚤属（Eurycercus）的甲壳动物开展了详尽的解剖学与遗传学分析，旨在探究北极区域近期环境变化与地表水流失对生物多样性的影响及其潜在生态学意义。本次研究记述了新物种，并对该亚属进行了分类修订。该属物种是鱼类、水禽与涉禽的重要食物来源。平突蚤属（Eurycercus）还可应用于古湖沼学（paleolimnology），以重建古环境状况。本次研究的采样区域覆盖亚北极与北极区域的西伯利亚、格陵兰、阿拉斯加及加拿大，力求实现全面的地理采样覆盖。遗传学分析结果支持对平突蚤属（Eurycercus）以及新种*E. beringi*的分类修订结论。