Publication
Title
Acute sensitivity of the killifish Nothobranchius furzeri to a combination of temperature and reference toxicants (cadmium, chlorpyrifos and 3,4-dichloroaniline)
Author
Abstract
Aquatic organisms of inland waters are often subjected to a combination of stressors. Yet, few experiments assess mixed stress effects beyond a select group of standard model organisms. We studied the joint toxicity of reference toxicants and increased temperature on the turquoise killifish, Nothobranchius furzeri, a promising model for ecotoxicological research due to the species' short life cycle and the production of drought-resistant eggs. The acute sensitivity of the larval stage (2dph) to three compounds (cadmium, 3,4-dichloroaniline and chlorpyrifos) was tested in combination with a temperature increase of 4 degrees C, mimicking global warming. Dose-response relationships were used to calculate 96h-LC50 of 0.28 mg/L (24 degrees C) and 0.39 mg/L (28 degrees C) for cadmium, 96h-LC50 of 9.75 mg/L (24 degrees C) and 6.61 mg/L (28 degrees C) for 3,4-dichloroaniline and 96h-LC50 of 15.4 mu g/L (24 degrees C) and 14.2 mu g/L (28 degrees C) for chlorpyrifos. After 24 h of exposure, the toxicity of all tested compounds was exacerbated under increased temperature. Furthermore, the interaction effect of cadmium and temperature could be predicted by the stress addition model (SAM). This suggests the applicability of the model for fish and at the same time indicates that the model could be suitable to predict effects of temperature-toxicant interactions.
Language
English
Source (journal)
Environmental Science and Pollution Research. - Landsberg
Publication
Landsberg : 2018
ISSN
0944-1344 [print]
1614-7499 [online]
Volume/pages
25 :10 (2018) , p. 10029-10038
ISI
000429561900078
Pubmed ID
29380199
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 04.05.2018
Last edited 25.09.2021
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