TY  - JOUR
A1  - Johann, Sarah
A1  - Goßen, Mira
A1  - Müller, Leonie
A1  - Selja, Valentina
A1  - Gustavson, Kim
A1  - Fritt-Rasmussen, Janne
A1  - Wegeberg, Susse
A1  - Ciesielski, Tomasz Maciej
A1  - Jenssen, Bjørn Munro
A1  - Hollert, Henner
A1  - Seiler, Thomas-Benjamin
T1  - Comparative toxicity assessment of in situ burn residues to initial and dispersed heavy fuel oil using zebrafish embryos as test organisms
T2  - Environmental science and pollution research
N2  - In situ burning (ISB) is discussed to be one of the most suitable response strategies to combat oil spills in extreme conditions. After burning, a highly viscous and sticky residue is left and may over time pose a risk of exposing aquatic biota to toxic oil compounds. Scientific information about the impact of burn residues on the environment is scarce. In this context, a comprehensive ISB field experiment with approx. 1000L IFO 180 was conducted in a fjord in Greenland. The present study investigated the toxicity of collected ISB residues to early life stages of zebrafish (Danio rerio) as a model for potentially exposed pelagic organisms. The toxicity of ISB residues on zebrafish embryos was compared with the toxicity of the initial (unweathered) IFO 180 and chemically dispersed IFO 180. Morphological malformations, hatching success, swimming behavior, and biomarkers for exposure (CYP1A activity, AChE inhibition) were evaluated in order to cover the toxic response on different biological organization levels. Across all endpoints, ISB residues did not induce greater toxicity in zebrafish embryos compared with the initial oil. The application of a chemical dispersant increased the acute toxicity most likely due to a higher bioavailability of dissolved and particulate oil components. The results provide insight into the adverse effects of ISB residues on sensitive life stages of fish in comparison with chemical dispersant application.
KW  - AChE
KW  - Chemical dispersant
KW  - Embryo toxicity
KW  - EROD
KW  - In situ burning
KW  - Swimming behavior
Y1  - 2020
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/75688
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-756881
SN  - 1614-7499
N1  - Open Access funding enabled and organized by Projekt DEAL. The work has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 679266.
VL  - 28
IS  - 13
SP  - 16198
EP  - 16213
PB  - Springer
CY  - Berlin ; Heidelberg
ER  -