Response of a nematode community to the fungicide fludioxonil in sediments of outdoor freshwater microcosms compared to a single species toxicity test.

Höss S, Roessink I, Brock TCM, Traunspurger W (In Press)
The Science of the total environment 710: 135627: 135627.

Zeitschriftenaufsatz | Im Druck | Englisch
 
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Abstract / Bemerkung
When entering aquatic ecosystems, hydrophobic organic chemicals like the fungicide fludioxonil partition to the sediment compartment where they pose potential risks to benthic invertebrates. To assess the ecological risk for sediment-dwelling invertebrates, nematodes are a suitable organism group, as they are abundantly present and possess key positions in the benthic food web. Therefore, the toxicity of the fungicide fludioxonil to nematodes was assessed in a standardized sediment toxicity test with Caenorhabditis elegans (ISO 10872), as well as in an outdoor sediment-spiked microcosm test system. In the microcosms, effects on the nematode species composition were studied, while exposure concentrations of fludioxonil were monitored in total sediment and pore water. Toxic effects on nematodes were better predicted using concentrations in pore water than total sediment concentrations. In laboratory single species tests, fludioxonil showed considerably lower toxicity in spiked field-collected sediment, compared to artificial ISO-sediments. Applying an assessment factor of 10 to the C. elegans 96-h EC10, a Tier-1 RACNematode of 7.99 mg kg-1 dry artificial sediment (corresponding to 69 mug l-1 in pore water) appeared to be protective for nematode communities in microcosms that showed no response in total abundance and species composition up to 39.9 mg fludioxonil kg-1 dry sediment (corresponding to 392 mug l-1 in pore water). Copyright © 2019 Elsevier B.V. All rights reserved.
Erscheinungsjahr
2019
Zeitschriftentitel
The Science of the total environment
Band
710
Art.-Nr.
135627
Seite(n)
135627
ISSN
0048-9697
eISSN
1879-1026
Page URI
https://pub.uni-bielefeld.de/record/2939591

Zitieren

Höss S, Roessink I, Brock TCM, Traunspurger W. Response of a nematode community to the fungicide fludioxonil in sediments of outdoor freshwater microcosms compared to a single species toxicity test. The Science of the total environment. In Press;710:135627: 135627.
Höss, S., Roessink, I., Brock, T. C. M., & Traunspurger, W. (In Press). Response of a nematode community to the fungicide fludioxonil in sediments of outdoor freshwater microcosms compared to a single species toxicity test. The Science of the total environment, 710, 135627., 135627. doi:10.1016/j.scitotenv.2019.135627
Höss, S., Roessink, I., Brock, T. C. M., and Traunspurger, W. (In Press). Response of a nematode community to the fungicide fludioxonil in sediments of outdoor freshwater microcosms compared to a single species toxicity test. The Science of the total environment 710, 135627:135627.
Höss, S., et al., In Press. Response of a nematode community to the fungicide fludioxonil in sediments of outdoor freshwater microcosms compared to a single species toxicity test. The Science of the total environment, 710, p 135627: 135627.
S. Höss, et al., “Response of a nematode community to the fungicide fludioxonil in sediments of outdoor freshwater microcosms compared to a single species toxicity test.”, The Science of the total environment, vol. 710, In Press, pp. 135627, : 135627.
Höss, S., Roessink, I., Brock, T.C.M., Traunspurger, W.: Response of a nematode community to the fungicide fludioxonil in sediments of outdoor freshwater microcosms compared to a single species toxicity test. The Science of the total environment. 710, 135627 : 135627 (In Press).
Höss, Sebastian, Roessink, I, Brock, T C M, and Traunspurger, Walter. “Response of a nematode community to the fungicide fludioxonil in sediments of outdoor freshwater microcosms compared to a single species toxicity test.”. The Science of the total environment 710 (In Press): 135627: 135627.

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