Igor Kokavec Institute of Zoology SAS

Bratislava 90043 SK

igor.kokavec@savba.sk 2026-04-30 eng Dataset of the published scientific paper. Metadata GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License. Creative Commons Attribution 4.0 International https://spdx.org/licenses/CC-BY-4.0.html CC-BY-4.0 Slovakia, Váh River 17.7492 19.941 49.258717 47.822583 2012-09-05 2016-05-19 family Naididae family Bithyniidae order Clitellata family Physidae family Haplotaxidae order Amphipoda order Mysida family Valvatidae family Janiridae family Lymnaeidae order Sphaeriida kingdom Animalia family Mysidae family Ampharetidae family Dreissenidae family Cyrenidae order Haplotaxida family Lithoglyphidae family Piscicolidae order Venerida family Propappidae order Lumbriculida order Enchytraeida order Littorinimorpha order Gastropoda order Arhynchobdellida family Gammaridae order Myida family Glossiphoniidae family Tubificidae family Lumbricidae family Dendrocoelidae family Lumbriculidae order Rhynchobdellida family Tateidae order Crassiclitellata family Planorbidae family Sphaeriidae family Acroloxidae family Planariidae family Hydrobiidae family Corophiidae order Tricladida family Enchytraeidae family Asellidae order Tubificida family Dugesiidae order Isopoda family Erpobdellidae This work was supported by the Scientific Grant Agency VEGA, Project No. 1/0119/16. asNeeded Igor Kokavec Institute of Zoology SAS

Bratislava 84506 SK

igor.kokavec@savba.sk The benthic invertebrates were separated from the other organic and inorganic material and preserved in 70 % ethylalcohol. Non-insect benthic invertebrates were identified to the species level when possible using the identification keys of Goedmakers (1981), Horsák et al. (2013), Nesemann & Neubert (1999) and Timm (2009). The sampling was carried out in the Váh River and the Čierny Váh River. Altogether, the research was carried out at 23 sites. Sampling was performed twice, during September 2015 and May 2016. Quantitative samples of benthic invertebrates were obtained using a modified Hess sampler (0.071 m2, 500-μm mesh size) or a Surber sampler (0.063 m2, 500-μm mesh size) depending on the depth of water. At each site, eight to ten subsamples were taken. Samples were fixed in a 4 % formaldehyde solution in plastic bottles. 2026-04-30T10:16:37.688+00:00 dataset Kokavec I (2026). Effect of a series of reservoirs on the environmental conditions and non-insect benthic communities in Slovakia’s longest river. Version 1.0. Institute of Zoology Slovak Academy of Sciences. Occurrence dataset. https://slovakia.ipt.gbif.no/resource?r=kokavecetal2018vah&v=1.0 Kokavec et al 2018 Vah alcohol