Sukhikh, N.M., V.I. Lazareva & V.R. Alekseev. (2020). Copepod Eurytemora caspica Sukhikh et Alekseev, 2013 (Crustacea, Calanoida) in Volga and Kama River Reservoirs. Inland Water Biology [Biologiya Vnutrennikh Vod 2:129-136]. 13(2):198-205. APR 2020.

383376

10.1134/S1995082920020145 [view]

Sukhikh, N.M., V.I. Lazareva & V.R. Alekseev

2020

13(2):198-205. APR 2020

Publication

Available for editors   [request]

In 2013, a new species,Eurytemora caspicaSukhikh et Alekseev, 2013, was described from the northern part of the Caspian Sea. A thorough morphological analysis ofEurytemorafrom the Volga River basin by the original descriptors of the species has shown thatE. caspica, rather than previously assumedE. affinis, actually inhabits the studied area. The speciesE. affinisitself was not detected in any sample. Analysis of the mitochondrial cytochrome oxidase subunit 1 gene (COI) has confirmed the species status of the studied populations from the Caspian Sea and some other areas of the Volga basin. The species is widespread throughout the Volga basin to the Kama Reservoir at the confluence of the Inva and Kosva rivers (58 degrees 52 ' N) in the north and has penetrated to the mouth of the Kama River (55 degrees 12 ' N) upstream the Volga. During summer, the abundance of the species in different parts of the Volga-Kama basin ranged from single findings to several thousand species per cubic meter.

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