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Utilization of a new bdelloid rotifer (Philodina acuticornis odiosa) assay to evaluate the effect of salinity on the toxicity of chlorothalonil

journal contribution
posted on 2010-04-01, 00:00 authored by T Hagen, G Allinson, A Wightwick, Scott SalzmanScott Salzman, D Nugegoda
Acute (24 h) toxicity tests were conducted to determine the toxicity of the fungicide chlorothalonil towards the freshwater bdelloid rotifer (Philodina acuticornis odiosa). Since rotifers are the dominant zooplankton species in many inland freshwater lakes in Australia, the influence of salinity on chlorothalonil toxicty was also assessed. The rotifers used in this study appeared to be reasonably tolerant to changes in salinity, with little mortality observed at 3760 µS cm-1, increasing thereafter at higher salinity. The bdelloid rotifers were, however, found to be highly sensitive to chlorothalonil (24 h LC50, 3.2 µg L-1) with results also suggesting that as salinity increases, so does toxicity (e.g., 24 h LC50 at 5000 µS cm-1, 0.5 µg L-1).

History

Journal

Toxicological & environmental chemistry

Volume

92

Issue

4

Pagination

743 - 748

Publisher

Taylor & Francis Group

Location

Abingdon, England

ISSN

0277-2248

eISSN

1029-0486

Language

eng

Publication classification

C1 Refereed article in a scholarly journal; C Journal article

Copyright notice

2010, Taylor & Francis

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