k 2019

Influence of drying and organic pollution on macroinvertebrate community composition

LOSKOTOVÁ, Barbora, Michal STRAKA, Alena DOSTÁLOVÁ, Marek POLÁŠEK, Jan ŠUPINA et. al.

Basic information

Original name

Influence of drying and organic pollution on macroinvertebrate community composition

Authors

LOSKOTOVÁ, Barbora (203 Czech Republic, guarantor, belonging to the institution), Michal STRAKA (203 Czech Republic, belonging to the institution), Alena DOSTÁLOVÁ (203 Czech Republic, belonging to the institution), Marek POLÁŠEK (203 Czech Republic, belonging to the institution), Jan ŠUPINA (203 Czech Republic, belonging to the institution) and Petr PAŘIL (203 Czech Republic, belonging to the institution)

Edition

Abstract book, 6th Fresh Blood for Fresh Water Conference (FBFW), April 23-27, 2019, Tihany, Hungary, p. 76. 2019

Other information

Language

English

Type of outcome

Prezentace na konferencích

Field of Study

10617 Marine biology, freshwater biology, limnology

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/00216224:14310/19:00110121

Organization unit

Faculty of Science

Keywords in English

stream drying; moisture content; sediment structure; organic pollution; resistance; invertebrates
Změněno: 18/1/2021 14:21, Mgr. Bc. Barbora Loskotová, Ph.D.

Abstract

V originále

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.

Links

LTC17017, research and development project
Name: Validace bioindikačních metod jako nástrojů pro udržitelný management středoevropských vysychavých toků a přenos těchto metod do praxe (Acronym: InterStreaM)
Investor: Ministry of Education, Youth and Sports of the CR, INTER-COST