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The effects of a pesticide mixture on aquatic ecosystems differing in trophic status: responses of the macrophyte Myriophyllum spicatum and the periphytic algal community

Wendt-Rasch, Lina LU ; Van den Brink, PJ; Crum, SJH and Woin, Per LU (2004) In Ecotoxicology and Environmental Safety 57(3). p.383-398
Abstract
The effects of a pesticide mixture (asulam, fluazinam, lambda-cyhalothrin, and metamitron) on aquatic ecosystems were investigated in 20 outdoor aquatic microcosms. Ten of the microcosms simulated mesotrophic aquatic ecosystems dominated by submerged macrophytes (Elodea). The others simulated eutrophic ecosystems with a high Lemna surface coverage (Lemna). This paper describes the fate of the chemicals as well as their effects on the growth of Myriophyllum spicatum and the periphytic algal community. In the Elodea-dominated microcosms significant increase in the biomass and alterations of species composition of the periphytic algae were observed, but no effect on M. spicatum growth could be recorded in response to the treatment. The... (More)
The effects of a pesticide mixture (asulam, fluazinam, lambda-cyhalothrin, and metamitron) on aquatic ecosystems were investigated in 20 outdoor aquatic microcosms. Ten of the microcosms simulated mesotrophic aquatic ecosystems dominated by submerged macrophytes (Elodea). The others simulated eutrophic ecosystems with a high Lemna surface coverage (Lemna). This paper describes the fate of the chemicals as well as their effects on the growth of Myriophyllum spicatum and the periphytic algal community. In the Elodea-dominated microcosms significant increase in the biomass and alterations of species composition of the periphytic algae were observed, but no effect on M. spicatum growth could be recorded in response to the treatment. The opposite was found in the Lemna-dominated microcosms, in which decreased growth of M. spicatum was observed but no alterations could be found in the periphytic community. In the Elodea-dominated microcosms the species composition of the periphytic algae diverged from that of the control following treatment with 0.5% spray drift emission of the label-recommended rate (5% for lambda-cyhalothrin), while reduced growth of M. spicatum in the Lemna-dominated microcosms was recorded at 2% drift (20% for lambda-cyhalothrin). This study shows that the structure of the ecosystem influences the final effect of pesticide exposure. (C) 2003 Elsevier Inc. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
lambda-cyhalothrin, metamitron, fluazinam, pesticide mixture, microcosms, trophic status, asulam, macrophytes, periphyton
in
Ecotoxicology and Environmental Safety
volume
57
issue
3
pages
383 - 398
publisher
Elsevier
external identifiers
  • wos:000220530500015
  • pmid:15041261
  • scopus:1642318536
ISSN
0147-6513
DOI
10.1016/j.ecoenv.2003.09.010
language
English
LU publication?
yes
id
7a567366-e5fb-422b-b127-61b4b677b3bb (old id 283001)
date added to LUP
2007-11-05 13:10:42
date last changed
2017-01-29 03:59:20
@article{7a567366-e5fb-422b-b127-61b4b677b3bb,
  abstract     = {The effects of a pesticide mixture (asulam, fluazinam, lambda-cyhalothrin, and metamitron) on aquatic ecosystems were investigated in 20 outdoor aquatic microcosms. Ten of the microcosms simulated mesotrophic aquatic ecosystems dominated by submerged macrophytes (Elodea). The others simulated eutrophic ecosystems with a high Lemna surface coverage (Lemna). This paper describes the fate of the chemicals as well as their effects on the growth of Myriophyllum spicatum and the periphytic algal community. In the Elodea-dominated microcosms significant increase in the biomass and alterations of species composition of the periphytic algae were observed, but no effect on M. spicatum growth could be recorded in response to the treatment. The opposite was found in the Lemna-dominated microcosms, in which decreased growth of M. spicatum was observed but no alterations could be found in the periphytic community. In the Elodea-dominated microcosms the species composition of the periphytic algae diverged from that of the control following treatment with 0.5% spray drift emission of the label-recommended rate (5% for lambda-cyhalothrin), while reduced growth of M. spicatum in the Lemna-dominated microcosms was recorded at 2% drift (20% for lambda-cyhalothrin). This study shows that the structure of the ecosystem influences the final effect of pesticide exposure. (C) 2003 Elsevier Inc. All rights reserved.},
  author       = {Wendt-Rasch, Lina and Van den Brink, PJ and Crum, SJH and Woin, Per},
  issn         = {0147-6513},
  keyword      = {lambda-cyhalothrin,metamitron,fluazinam,pesticide mixture,microcosms,trophic status,asulam,macrophytes,periphyton},
  language     = {eng},
  number       = {3},
  pages        = {383--398},
  publisher    = {Elsevier},
  series       = {Ecotoxicology and Environmental Safety},
  title        = {The effects of a pesticide mixture on aquatic ecosystems differing in trophic status: responses of the macrophyte Myriophyllum spicatum and the periphytic algal community},
  url          = {http://dx.doi.org/10.1016/j.ecoenv.2003.09.010},
  volume       = {57},
  year         = {2004},
}