Biodiversity of freshwater mermithid nematodes, south ural region, Russia

4th International Conference on Water Resource and Environment

地球科学;生态环境科学

Mashkova, I.V.^1 ; Krupnova, T.G.^1 ; Egorov, N.O.^1

Department of Chemistry, South Ural State University, Chelyabinsk, Russia^1

关键词: Anthropogenic changes;    Canonical Correspondence Analysis;    Environmental variables;    Free livings;    Nematoda;    South Ural;    Species richness;    Waterbodies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/191/1/012036/pdf
DOI  :  10.1088/1755-1315/191/1/012036

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper deals with mermithid nematodes (Nematoda: Mermithidae) richness of the South Ural region, Russia. Mermithids are good bioindicators of anthropogenic change, but there are a number of studies of their South Ural region population and their response to the lakes environmental variables has received little investigation. We collected free-living adult and post-parasitic juvenile mermithids and parasitic stage of mermithids from naturally infected host larvae in standing waterbodies during 2013-2017. Eleven lakes (Lake Small Miassovo, Lake Large Miassovo, Lake Baraus, Lake Savelkul, Lake Large Terenkul, Lake Small Kisegach, Lake Large Kisegach, Lake Elovoe, Lake Chebarkul, Lake Ilmenskoe, Lake Argayash) and Miasskiy Pond were studied. We listed 17 species of mermithid nematodes belonging to 10 genera. We found three new mermithids species of the South Ural region: Brevimermis prorosea Rubzov, 1972, Isomermis brevis Rubzov, 1972, Odonatomermis atlaensis Rubzov, 1973. The results of the canonical correspondence analysis showed that species richness was influenced by substratum type.