Comparison of fate and ecological effects of the herbicide linuron in freshwater model ecosystems between tropical and temperate regions

M.A. Daam, P.J. van den Brink, A.J.A. Nogueira

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)

Abstract

This paper compares the fate and effects of linuron in an outdoor plankton-dominated microcosm study carried out in Thailand with those reported in temperate model ecosystem studies evaluating linuron and other photosynthesis-inhibiting herbicides. Lower linuron concentrations disappeared slightly faster from the water compartment compared to temperate conditions, which appears to be related with the experimental design rather than differences in climatic conditions. Sensitivity of primary producers and zooplankton were similar for the climatic regions, whereas effects on ecosystem functioning were less pronounced in tropical microcosms. Recovery potential of affected endpoints appears higher for tropical ecosystems compared to their temperate counterparts. These findings support the use of toxicity data generated in temperate countries in the tropics. Recommendations for the methodology of tropical model ecosystem experiments are discussed
Original languageEnglish
Pages (from-to)424-433
JournalEcotoxicology and Environmental Safety
Volume72
Issue number2
DOIs
Publication statusPublished - 2009

Keywords

  • macrophyte-dominated mesocosms
  • active ingredient linuron
  • stream algal communities
  • 2 triazine herbicides
  • boreal forest lake
  • terrestrial herbicides
  • metsulfuron methyl
  • aquatic ecosystems
  • primary producers
  • marsh periphyton

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