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Fine-scale multiannual survey of benthic invertebrates in a glacier-fed stream used for hydropower generation

, Roberta Bottarin
Published: 13 April 2021
Scientific Data , Volume 8, pp 1-6; doi:10.1038/s41597-021-00887-x

Abstract: The present dataset contains information about aquatic macroinvertebrates and environmental variables collected before and after the implementation of a small “run-of-river” hydropower plant on the Saldur stream, a glacier-fed stream located in the Italian Central-Eastern Alps. Between 2015 and 2019, with two sampling events per year, we collected and identified 34,836 organisms in 6 sampling sites located within a 6 km stretch of the stream. Given the current boom of the hydropower sector worldwide, and the growing contribution of small hydropower plants to energy production, data here included may represent an important – and long advocated – baseline to assess the effects that these kinds of powerplants have on the riverine ecosystem. Moreover, since the Saldur stream is part of the International Long Term Ecological Research network, this dataset also constitutes part of the data gathered within this research programme. All samples are preserved at Eurac Research facilities.
Keywords: Environmental impact / Ecosystem ecology / Limnology / Freshwater ecology

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