J 2022

Analysis of multiple-pressure pattern in rivers and its effects on the structure of macroinvertebrate communities

HROCH, Martin and Karel BRABEC

Basic information

Original name

Analysis of multiple-pressure pattern in rivers and its effects on the structure of macroinvertebrate communities

Authors

HROCH, Martin (203 Czech Republic, belonging to the institution) and Karel BRABEC (203 Czech Republic, guarantor, belonging to the institution)

Edition

Limnologica, Elsevier GmbH, 2022, 0075-9511

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10503 Water resources

Country of publisher

Germany

Confidentiality degree

is not subject to a state or trade secret

References:

Impact factor

Impact factor: 1.700

RIV identification code

RIV/00216224:14310/22:00127749

Organization unit

Faculty of Science

UT WoS

000876967600001

EID Scopus

2-s2.0-85163215339

Keywords in English

Macroinvertebrates; Community structure; Multiple stress; Scale

Tags

Tags

International impact, Reviewed
Changed: 11/7/2023 09:59, Mgr. Marie Novosadová Šípková, DiS.

Abstract

V originále

Natural and anthropogenic factors form stream macroinvertebrate communities depending on their combination, intensity, and spatial pattern. The study aimed to identify macroinvertebrate indicators that respond to land cover, hydromorphology, and wastewater releases individually and to their multiple-pressure pattern. Environmental and macroinvertebrate data from 36 sites were used in the study. Pressure parameters representing hierarchy of their complexity and spatial scale were included in analyses. Correlation analyses were used for evaluation of relationships among pressure characteristics and also pressure–macroinvertebrate relationships. The pressure-based and biological classification of sites was compared and indicator taxa were identified. The arable land in the sub-corridor extending 2–10 km upstream of an investigated site was the main pressure factor influencing the structure of macroinvertebrate communities in the studied streams. The biological effects of small-scale land cover were followed by catchment-scale land cover and hydromorphology. Almost no association of macroinvertebrates with the risk of point source pollution were detected. Classifications based on pressures and community composition corresponded only by the separation of most degraded sites from others. Among the macroinvertebrate indicators characterizing the severe impairment threshold, chironomids and oligochaetes dominated. Different responses of macroinvertebrates to hydromorphological degradation were observed under conditions of high small- and large-scale agricultural pressures (decrease in macroinvertebrate evenness and increase in oligochaete taxa richness, respectively). Linking biological indicators to pressure components and their combinations improves the efficiency of conservation and restoration strategies applied in fluvial ecosystems.

Links

SP/2E7/50/08, research and development project
Name: Posouzení indikační váhy hodnotitelných taxonů společenstva makrozoobentosu ? příspěvek pro implementaci WFD-ES v ČR
Investor: Ministry of the Environment of the CR, Indicative power
282656, interní kód MU
Name: REFORM - REstoring rivers FOR effective catchment Management (Acronym: REFORM)
Investor: European Union, Cooperation
7E12071, research and development project
Name: Restoring rivers for effective catchment management (Acronym: REFORM)
Investor: Ministry of Education, Youth and Sports of the CR