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Effects of chemical dispersants on feathers from Arctic seabirds
Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
DOI
- https://doi.org/10.1016/j.marpolbul.2023.114659
Forlagets udgivne version
- Janne Fritt-Rasmussen
- Jannie Fries Linnebjerg ,
- Tor Nordam, Department of Environment and Climate Change NSW ,
- Frank F Rigét ,
- Paneeraq Kristensen ,
- Jørgen Skancke, Department of Environment and Climate Change NSW ,
- Susse Wegeberg
- Anders Mosbech
- Kim Gustavson
Chemical dispersion is an oil spill response strategy where dispersants are sprayed onto the oil slick to enhance oil dispersion into the water. However, accidental application could expose seabirds to dispersants, thereby negatively affecting their plumage. To understand the possible impacts on seabirds, feathers from common eider (Somateria mollissima) and thick-billed murre (Uria lomvia) were exposed to different dosages of the dispersant Dasic Slickgone NS. For all exposure dosages the feathers increased in weight, and mostly for common eider. Analysing the feather microstructure, e.g., the Amalgamation Index, showed that larger damages were found on thick-billed murre than common eider. A no-sinking limit was established at 0.109 ml/m 2. Relating this value to desktop simulations of potential sea-surface dosages in real-life situations, and to published accounts of response operations, showed that the limit is likely to be exceeded. Thus, our results show that chemical dispersants in realistic dosages could impact seabirds.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 114659 |
| Tidsskrift | Marine Pollution Bulletin |
| Vol/bind | 188 |
| Sider (fra-til) | 114659 |
| ISSN | 0025-326X |
| DOI | |
| Status | E-pub ahead of print - 2 feb. 2023 |
Bibliografisk note
Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.
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