New method for retrospective bioindication of stream drying up based on the analysis of taxonomical and functional composition of aquatic macroinvertebrates

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00090328" target="_blank" >RIV/00216224:14310/16:00090328 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
New method for retrospective bioindication of stream drying up based on the analysis of taxonomical and functional composition of aquatic macroinvertebrates
Original language description
Flow abruption or complete drying up of small streams (up to 4th Strahler order) has become more frequent in the temperate zone in the last decades as a consequence of climate change together with human alterations of hydrological regime. The novel method developed for Czech streams during the BIODROUGHT project (biodrought.eu) enables retrospective bioindication of dry episodes in stream history using benthic macroinvertebrates. The method comprises the calculation of biological metrics related to drought duration and the spatial extent of affected stretch to evaluate the magnitude of stream impairment by drought during the preceding vegetation season. The dry episode is defined as the abruption of flow continuity and three stream types were distinguished: permanent,vulnerable and intermittent. Multihabitat kick samples were taken from 20 streams (arranged in 10 pairs consisting from permanent and intermittent stream) in spring and autumn seasons (2012-14).
Czech name
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Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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