print preview Back Homepage

Reduction of the biological diversity of watercourses due to human influence? (FOEN)

As part of the National Surface Water Quality Monitoring (NAWA), water quality is jointly recorded by the federal government and the cantons at around 100 monitoring sites. Anthropogenic impairment of watercourses could generally lead to a reduction in biodiversity, affecting certain insects in particular.

10.06.2021 | www.geo.admin.ch

ch.bafu.gewaesserschutz-biologischer_zustand_makrozoobenthos

Link to the map: map.geo.admin.ch

The map shows how good the surface water quality of Swiss watercourses is. The assessment of the biological water body status based on macrozoobenthos studies is carried out using the macrozoobenthos module of the Modular Stepwise Procedure. These investigations serve to identify impairments with significant biological impacts and to assess the need for more in-depth investigations.

Macrozoobenthos is the term used to describe the small invertebrates at the bottom of the watercourse. The small invertebrates, whose life cycle takes place to a significant extent in the water body, are suitable as bioindicators, as they integrate the condition of the water body over their entire life cycle in the water and their demands on water quality and habitat are often well known.

Further information on the topic of macrozoobenthos: Website FOEN

 

geo.admin.ch c/o
Federal Office of Topography swisstopo
COGIS (Coordination, Geo-Information and Services)
Seftigenstrasse 264
P.O. Box
3084 Wabern
Tel.
0041 58 469 03 15
Fax
0041 58 469 04 59

E-Mail

geo.admin.ch

c/o
Federal Office of Topography swisstopo
COGIS (Coordination, Geo-Information and Services)
Seftigenstrasse 264
P.O. Box
3084 Wabern