Disentangling environmental drivers of macroinvertebrate community structure: the role of stream drying and wastewater pollution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020711%3A_____%2F24%3A10155373" target="_blank" >RIV/00020711:_____/24:10155373 - isvavai.cz</a>

Result on the web

<a href="https://www.aquabol.sk/cesamir2020/wp-content/uploads/2024/07/CESAMIR2024-Book-of-Abstracts.pdf" target="_blank" >https://www.aquabol.sk/cesamir2020/wp-content/uploads/2024/07/CESAMIR2024-Book-of-Abstracts.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Disentangling environmental drivers of macroinvertebrate community structure: the role of stream drying and wastewater pollution

Original language description

Due to the ongoing climate change bringing long-term deficits of precipitation together with rising evapotranspiration related to higher temperatures, there is an increasing proportion of intermittent streams in continental temperate zone. Drying streams are exposed to diverse anthropogenic impacts including the input of urban pollution. The outflow of wastewater from sewage treatment plants are one of the most common forms of organic pollution in stream ecosystems and has adverse effect on benthic invertebrates. The response of stream biota to increased saprobity is well described in perennial systems. However, the evidence of structural and functional changes in benthic invertebrate assemblages in polluted intermittent streams is scarce.Using the &quot;real world experiment&quot; with sampling sites up- and downstream of sources of wastewater pollution in intermittent/perennial streams we studied how both factors affect benthic invertebrate community. We analysed water chemistry, duration of dry period and benthic invertebrate communities within the dataset of 16 sites from the Czech Republic. Benthic invertebrate community clearly differed among the four studied groups (perennial non-polluted, perennial polluted, intermittent non-polluted, intermittent polluted) and was organised along two gradients. These gradients represent both studied factors (pollution, intermittence) and our results suggest that both factors have distinct but not the same effect on benthic invertebrates. Project was supported by the Czech Science Foundation (GA23-05268S) and H2020 project DRYvER (869226).

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

10617 - Marine biology, freshwater biology, limnology

Project

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Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů