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Species Composition, Distribution and Ecological Features of Ichthyofauna in the Pymvashor Geothermal Valley (Bolshezemelskaya Tundra, Nenets Autonomous Okrug)
Journal of Ichthyology ( IF 0.7 ) Pub Date : 2020-09-12 , DOI: 10.1134/s0032945220040128
A. P. Novoselov , O. V. Aksenova , I. N. Bolotov , N. G. Skyutte , V. V. Anufriev , M. V. Surso

Abstract

Ichthyofauna in the studied streams in the Pymvashor Geothermal Valley contains six species from six families; the basis of the fish assemblage is formed by three species such as European grayling Thymallus thymallus, common minnow Phoxinus phoxinus and stone loach Barbatula barbatula. Fish distribution patterns are expressed well in spatial and seasonal aspects. Fish inhabiting water bodies in the Pymvashor Geothermal Valley belong to two faunal complexes with prevalence of species of the boreal piedmont complex; three groups are distinguished in respect to the feeding habits, i.e. benthophagous, predatory, and euryphagous fishes. Species which lay eggs on rocky-pebbly substrates in late spring and early summer prevail. According to the economic status three fish species are non-commercial; common bullhead is listed in the regional Red Data Book of the Nenets Autonomous Okrug.


中文翻译:

Pymvashor地热谷中鱼腥藻的种类组成,分布和生态特征(Bolshezemelskaya Tundra,涅涅茨自治区)

摘要

Pymvashor地热谷中研究的河流中的鱼腥藻共有来自六个科的六种。鱼组合的基础是由三个物种,如欧洲茴形成茴茴,真鱥Phoxinus phoxinus和石头泥鳅Barbatula barbatula。鱼的分布模式在空间和季节方面都表现得很好。Pymvashor地热谷中栖息于水体中的鱼类属于两个动物群,其中北部山麓群的种类普遍。根据摄食习惯将其分为三类,即底栖鱼类,掠食性鱼类和食道鱼类。在春季末期和初夏时,在卵石基底上产卵的物种占主导。根据经济状况,三种鱼类是非商业性的;涅涅茨自治区的《红色数​​据手册》列出了常见的顽固派。
更新日期:2020-09-12
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