Scotti, Alberto; Bottarin, Roberta; Vanek, Magdalena (2023): Abundances of stream benthic macroinvertebrates and related environmental variables of a glacier-fed stream in South Tyrol, Italy (2016-2022) [dataset bundled publication]. Eurac Research, PANGAEA, https://doi.org/10.1594/PANGAEA.953137
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Abstract:
Stream benthic macroinvertebrates and a set of environmental variables have been collected for a period of 7 consecutive years (2016-2022, from April/May to September/October, during the glacial melting season) along a longitudinal transect of the Saldur stream, a near pristine glacier-fed stream located in South Tyrol, Italy (46°N, 10° E), part of the International Long Term Ecological Research (ILTER) network (site code: LTER_EU_IT_100). From year 2016 on, a small run-of-river (ROR) hydropower plant (max. 3,200 kW/year) started to operate on the stream, located in close proximity to site Saldur_2A. The potential impact on the riverine ecosystem was largely investigated, and resulted to be negligible. Extensive details on this topic can be found reading the scientific publications: Scotti et al. (2022; doi:10.3389/fenvs.2022.902603) and Scotti et al. (2022; doi:10.3389/fenvs.2022.904547).
Organisms were collected through Surber samplings (0.0506 squared metres, mesh size 500 µm) in 3 sites at different elevation and distance from the glacial source: Saldur 1 (2,030 m a.s.l.; 4.962 km), Saldur 2A (2,016 m a.s.l.; 5.325 km), Saldur 3 (1,645 m a.s.l.; 11.123 km). In all sites, three different sub-samples were collected, and the main substrates present at each site were sampled (macrolithal - rocks of 20-40 cm, and mesolithal - rocks of 6-20 cm). Faunal nomenclature fully complies with Fauna Europaea standard (https://fauna-eu.org). Contextually, a set of environmental variables was measured (as spot-measurement) during the macroinvertebrate samplings: suspended solids (mL/L); specific conductance at 25° C (mS/cm), water temperature (°C), calculation of the bottom component of the Pfankuch index. Whilst only in 2018 turbidity (NFU) was measured instead of suspended solids, and all the measurements were conducted using a multiparameter meter (HI9829, Hanna Instruments), for all the remaining years suspended solids were measured after 30 minutes of water sedimentation in a Imhoff cone, and specific conductance through a portable conductimeter (Cond 7, XS Instruments). More methodological details can be found in Scotti & Bottarin (2021; doi:10.1038/s41597-021-00887-x) and Scotti et al. (2019; doi:10.3897/BDJ.7.e33576). A similar dataset , with coarser taxonomic resolution, is available on PANGAEA covering the sampling on the same sites during years 2010-2015: Bottarin & Scotti (2019; doi:10.1594/PANGAEA.897915). Together with the present dataset, the time series now covers 13 years.
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Related to:
Scotti, Alberto; Bottarin, Roberta (2021): Fine-scale multiannual survey of benthic invertebrates in a glacier-fed stream used for hydropower generation. Scientific Data, 8, 105, https://doi.org/10.1038/s41597-021-00887-x
Scotti, Alberto; Jacobsen, Dean; Bottarin, Roberta (2022): Small hydropower—Small ecological footprint? A multi-annual environmental impact analysis using aquatic macroinvertebrates as bioindicators. Part 2: Effects on functional diversity. Frontiers in Environmental Science, 10, 904547, https://doi.org/10.3389/fenvs.2022.904547
Scotti, Alberto; Jacobsen, Dean; Stefan, Valentin; Tappeiner, Ulrike; Bottarin, Roberta (2022): Small Hydropower—Small Ecological Footprint? A Multi-Annual Environmental Impact Analysis Using Aquatic Macroinvertebrates as Bioindicators. Part 1: Effects on Community Structure. Frontiers in Environmental Science, 10, 902603, https://doi.org/10.3389/fenvs.2022.902603
Scotti, Alberto; Tappeiner, Ulrike; Bottarin, Roberta (2019): Stream benthic macroinvertebrates abundances over a 6-year monitoring period of an Italian glacier-fed stream. Biodiversity Data Journal, 7, https://doi.org/10.3897/BDJ.7.e33576
Other version:
Bottarin, Roberta; Scotti, Alberto (2019): Abundances of stream benthic macroinvertebrates during a 6-year monitoring period of a glacier-fed stream in South Tyrol, Italy. Eurac Research, PANGAEA, https://doi.org/10.1594/PANGAEA.897915
Coverage:
Median Latitude: 46.728025 * Median Longitude: 10.675291 * South-bound Latitude: 46.711500 * West-bound Longitude: 10.647500 * North-bound Latitude: 46.743500 * East-bound Longitude: 10.701300
Date/Time Start: 2016-04-12T00:00:00 * Date/Time End: 2022-09-22T12:45:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets
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Datasets listed in this bundled publication
- Scotti, A; Bottarin, R; Vanek, M (2023): Abundances of stream benthic macroinvertebrates of a glacier-fed stream in South Tyrol, Italy (2016-2022). https://doi.org/10.1594/PANGAEA.953127
- Scotti, A; Bottarin, R; Vanek, M (2023): Environmental variables of a glacier-fed stream in South Tyrol, Italy (2016-2022). https://doi.org/10.1594/PANGAEA.953135