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Effects of invertebrate predators and a pesticide on temporary pond microcosms used for aquatic toxicity testing

Barry, Michael J. and Davies, Warren 2004, Effects of invertebrate predators and a pesticide on temporary pond microcosms used for aquatic toxicity testing, Environmental pollution, vol. 131, no. 1, pp. 25-34, doi: 10.1016/j.envpol.2004.02.023.

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Title Effects of invertebrate predators and a pesticide on temporary pond microcosms used for aquatic toxicity testing
Author(s) Barry, Michael J.
Davies, Warren
Journal name Environmental pollution
Volume number 131
Issue number 1
Start page 25
End page 34
Total pages 10
Publisher Pergamon
Place of publication Oxford, England
Publication date 2004-09
ISSN 0269-7491
1873-6424
Summary The effects of increased trophic complexity, through the addition of predatory notonectids (Anisops deanei), on temporary pond microcosms used for aquatic toxicity testing were studied. Replicate microcosms were established using sediment from a dried temporary pond, and treated with one of four concentrations of the organochlorine pesticide endosulfan (0, 1, 10 or 50 μg/L), in the presence or absence of six A. deanei. The tanks were sampled regularly for nine weeks following the addition of the predators and the entire contents of each tank counted after 12 weeks. Analysis using non-metric multidimensional scaling (MDS) and non-parametric MANOVA showed that both Anisops and endosulfan at concentrations >10 μg/L significantly altered community structure. However, an interaction between the effects of Anisops and the effects of endosulfan was not detected. The addition of Anisops did not increase the variability of response and thus did not reduce the sensitivity of the test method.
Language eng
DOI 10.1016/j.envpol.2004.02.023
Field of Research 050299 Environmental Science and Management not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2004, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30024551

Document type: Journal Article
Collection: School of Engineering
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