Influence of drying and organic pollution on macroinvertebrate community composition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00110121" target="_blank" >RIV/00216224:14310/19:00110121 - isvavai.cz</a>

Výsledek na webu

<a href="http://fbfw2019.okologia.mta.hu/static/fbfw_app/FBFW_BOOK.pdf" target="_blank" >http://fbfw2019.okologia.mta.hu/static/fbfw_app/FBFW_BOOK.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of drying and organic pollution on macroinvertebrate community composition

Popis výsledku v původním jazyce

Stream drying is nowadays a highlighted research topic because more and more streams becoming intermittent globally. Despite it, there is still lack of information about co-influence of drying with other stressors such as organic pollution on instream biota. Benthic invertebrates can reveal different responses (e.g. different resistance to drying and pollution) to these effects depending on their combined or isolated impacts. We tested in laboratory benthic invertebrates from dry riverbed samples from streams with two different combinations of following factors – i) unpolluted intermittent streams (3 sites) and ii) organic polluted intermittent streams (3 sites). Samples of benthic invertebrates were taken during the drying episode and rehydrated for 2 months under laboratory conditions (controlled temperature and aeration). In each stream we taken 10 plots from 10 representative mesohabitats according their proportional representation within reach. We also analysed substrate composition and sediment moisture in each mesohabitat as important factors affecting invertebrate resistance. This experiment can help to understand differences in seedbank composition in unpolluted and organic polluted intermittent streams and differences in species resistance under combination of both stressors.

Název v anglickém jazyce

Influence of drying and organic pollution on macroinvertebrate community composition

Popis výsledku anglicky

Stream drying is nowadays a highlighted research topic because more and more streams becoming intermittent globally. Despite it, there is still lack of information about co-influence of drying with other stressors such as organic pollution on instream biota. Benthic invertebrates can reveal different responses (e.g. different resistance to drying and pollution) to these effects depending on their combined or isolated impacts. We tested in laboratory benthic invertebrates from dry riverbed samples from streams with two different combinations of following factors – i) unpolluted intermittent streams (3 sites) and ii) organic polluted intermittent streams (3 sites). Samples of benthic invertebrates were taken during the drying episode and rehydrated for 2 months under laboratory conditions (controlled temperature and aeration). In each stream we taken 10 plots from 10 representative mesohabitats according their proportional representation within reach. We also analysed substrate composition and sediment moisture in each mesohabitat as important factors affecting invertebrate resistance. This experiment can help to understand differences in seedbank composition in unpolluted and organic polluted intermittent streams and differences in species resistance under combination of both stressors.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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