An outdoor mesocosm study to assess ecotoxicological effects of atrazine on a natural plankton community

An outdoor mesocosm study to assess ecotoxicological effects of atrazine on a natural plankton community

The effects of the triazine herbicide atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) on a natural plankton community were assessed using pond mesocosms. Atrazine was applied at 6 test concentrations during a 6 week study. Structural and functional parameters were measured twice weekly....

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Veröffentlicht in:Archives of environmental contamination and toxicology 1995-11, Vol.29 (4), p.435-441
Hauptverfasser: Juttner, I. (Institut fur Okologische Chemie Neuherberg, Oberschleissheim, Germany.), Peither, A, Lay, J.P, Kettrup, A, Ormerod, S.J
Format: Artikel
Sprache:eng
Schlagworte:
ALEMANIA
ALLEMAGNE
AMBIENTE ACUATICO
Animal, plant and microbial ecology
Applied ecology
AQUATIC ENVIRONMENT
ATRAZINA
ATRAZINE
Biological and medical sciences
CHEMICOPHYSICAL PROPERTIES
CONCENTRATION
CONDUCTIVITY
Ecotoxicology, biological effects of pollution
FITOPLANCTON
Fresh water environment
Freshwater
Fundamental and applied biological sciences. Psychology
GERMANY
MILIEU AQUATIQUE
OXIGENO
OXYGEN
OXYGENE
PHYTOPLANCTON
PHYTOPLANKTON
POLLUTION DE L'EAU
POLUCION DEL AGUA
PROPIEDADES FISICO-QUIMICAS
PROPRIETE PHYSICOCHIMIQUE
TOXICIDAD
TOXICITE
TOXICITY
WATER POLLUTION
ZOOPLANCTON
ZOOPLANKTON
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Beschreibung
Zusammenfassung:The effects of the triazine herbicide atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) on a natural plankton community were assessed using pond mesocosms. Atrazine was applied at 6 test concentrations during a 6 week study. Structural and functional parameters were measured twice weekly. Marked reductions in oxygen levels indicated adverse effects by atrazine on photosynthesis. Sensitivity to atrazine varied among phytoplankton taxa, though at 182 ug per litre threshold concentrations for effects on most taxa were exceeded. The most probable causes of changes in the abundance of several zooplankton species were indirect effects due to food limitation.
ISSN:0090-4341
1432-0703
DOI:10.1007/BF00208371