Environmental Project, 1041 – Pulse Effects of Herbicides on Periphyton in Streams and Recovery

Pulse Effects of Herbicides on Periphyton in Streams and Recovery

Colophon

Title:
Pulse Effects of Herbicides on Periphyton in Streams and Recovery

Key Subjects:
streams, pesticides

Key Subjects in Danish:
vandløb, pesticider

Abstract:
During the last decade, it has been documented that pesticides frequently occurred in Danish streams. Generally, published data on effects of herbicides on microalgal communities are lacking. In the present study the herbicides isoproturon, hexazinone and metribuzin affected the microalgea community at low concentration, and at distinctly lower concentration than the effect concentrations published for standard single-species growth-test. A significant result of this study was that even a short-term exposure affected the composition of the periphyton community.

Abstract in Danish:
Inden for de sidste 10 år er det blevet dokumenteret , at pesticider ofte forekommer i danske åer og vandløb. Der mangler generelt publicerede data for herbicidernes effekter på mikroalgesamfund. I nærværende projekt påvirkede isoproturon, hexazinon og metribuzin mikroalgesamfundene ved lave koncentrationer, og ved markant lavere koncentrationer end de effektkoncentrationer, som er fundet enkeltartstest. Et signifikant resultat af dette projekt er, at selv en korttidseksponering påvirkede artssammensætningen.

Series title and no.:
Environmental Project, 1041

Publisher:
Danish Environmental Protection Agency

Performing organization(s):
DHI – Institute for Water & Environment

Copyright:
Danish Environmental Protection Agency

Creators:
Gustavsson, Kim
Møhlenberg, Flemming
Schlüter, Louise

Contributor:
Schultz Grafisk (web)

Language:
eng

URL:
http://www.mst.dk/

ISBN nr. Electronic version:
87-7614-820-3

Version:
1.0

Version/edition:
2005-10-21

Data formats:
html, gif, pdf, css

Inventory:
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Publisher category:
statslig