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Combined impact of stream drying and organic pollution on invertebrate seedbank: Experimental rehydration of dry riverbed sediment

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00110120" target="_blank" >RIV/00216224:14310/19:00110120 - isvavai.cz</a>

  • Výsledek na webu

    <a href="http://www.sefs11.biol.pmf.hr/wp-content/uploads/2019/07/Book-of-abstract.pdf" target="_blank" >http://www.sefs11.biol.pmf.hr/wp-content/uploads/2019/07/Book-of-abstract.pdf</a>

  • DOI - Digital Object Identifier

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Combined impact of stream drying and organic pollution on invertebrate seedbank: Experimental rehydration of dry riverbed sediment

  • Popis výsledku v původním jazyce

    Due to the climate change more and more streams becoming intermittent, even in temperate regions with humid climate as is the Czech Republic. Unfortunately, there is still lack of information about co-influence of drying with other common anthropogenic stressors, such as organic pollution, on instream biota. Benthic invertebrates can reveal different responses (e.g. different resistance level to drying) to isolated or combined impacts of multiple stressors. In our study, we compared benthic invertebrates from dry riverbed sediment of 6 intermittent streams with (3 sites) and without (3 sites) organic pollution using laboratory rehydration of the sediment. At each site we sampled 10 plots from 10 selected mesohabitats according to their proportional representation within the reach. Samples of benthic invertebrates were rehydrated for 2 months under controlled laboratory conditions to observe invertebrate seedbank hatching. Besides the duration of drying and organic pollution impacts, we also analyse substrate structure and moisture content of mesohabitats samples as important factors affecting invertebrate resistance. Results may help understand differences in invertebrate seedbank composition in organic-polluted and unpolluted intermittent streams and differences in species resistance to both stressors.

  • Název v anglickém jazyce

    Combined impact of stream drying and organic pollution on invertebrate seedbank: Experimental rehydration of dry riverbed sediment

  • Popis výsledku anglicky

    Due to the climate change more and more streams becoming intermittent, even in temperate regions with humid climate as is the Czech Republic. Unfortunately, there is still lack of information about co-influence of drying with other common anthropogenic stressors, such as organic pollution, on instream biota. Benthic invertebrates can reveal different responses (e.g. different resistance level to drying) to isolated or combined impacts of multiple stressors. In our study, we compared benthic invertebrates from dry riverbed sediment of 6 intermittent streams with (3 sites) and without (3 sites) organic pollution using laboratory rehydration of the sediment. At each site we sampled 10 plots from 10 selected mesohabitats according to their proportional representation within the reach. Samples of benthic invertebrates were rehydrated for 2 months under controlled laboratory conditions to observe invertebrate seedbank hatching. Besides the duration of drying and organic pollution impacts, we also analyse substrate structure and moisture content of mesohabitats samples as important factors affecting invertebrate resistance. Results may help understand differences in invertebrate seedbank composition in organic-polluted and unpolluted intermittent streams and differences in species resistance to both stressors.

Klasifikace

  • Druh

    O - Ostatní výsledky

  • CEP obor

  • OECD FORD obor

    10617 - Marine biology, freshwater biology, limnology

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/LTC17017" target="_blank" >LTC17017: Validace bioindikačních metod jako nástrojů pro udržitelný management středoevropských vysychavých toků a přenos těchto metod do praxe</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Ostatní

  • Rok uplatnění

    2019

  • Kód důvěrnosti údajů

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