Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus
The aim of this study was to investigate impacts of fine particulate fraction of a commonly used barite-containing drilling mud on the pelagic filter feeding copepod Calanus finmarchicus. The results show that the tested drilling mud had a low acute toxicity on C. finmarchicus (LC50 > 320 mg/L) a...
Published in: | Journal of Toxicology and Environmental Health, Part A |
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Language: | English |
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Online Access: | http://hdl.handle.net/11250/2467443 https://doi.org/10.1080/15287394.2017.1352197 |
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ftsintef:oai:sintef.brage.unit.no:11250/2467443 2023-05-15T15:47:52+02:00 Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus Farkas, Julia Yvonne Bådsvik, Camilla Altin, Dag Nordtug, Trond Olsen, Anders Johny Hansen, Bjørn Henrik 2017 application/pdf http://hdl.handle.net/11250/2467443 https://doi.org/10.1080/15287394.2017.1352197 eng eng Journal of Toxicology and Environmental Health. 2017, 80 (16-18), 907-915. urn:issn:1528-7394 http://hdl.handle.net/11250/2467443 https://doi.org/10.1080/15287394.2017.1352197 cristin:1498468 Navngivelse-Ikkekommersiell-DelPåSammeVilkår 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-sa/4.0/deed.no The authors CC-BY-NC-SA 907-915 80 Journal of Toxicology and Environmental Health 16-18 Journal article Peer reviewed 2017 ftsintef https://doi.org/10.1080/15287394.2017.1352197 2021-08-04T11:59:10Z The aim of this study was to investigate impacts of fine particulate fraction of a commonly used barite-containing drilling mud on the pelagic filter feeding copepod Calanus finmarchicus. The results show that the tested drilling mud had a low acute toxicity on C. finmarchicus (LC50 > 320 mg/L) and that the observed toxicity was likely caused by dissolved constituents in the mud and not the particle phase containing the weighting agent barite. Further, animals were exposed to drilling mud at a concentration of 10 mg/L for 168 hr followed by a 100 hr recovery phase. A rapid uptake of drilling mud particles was observed, while the excretion was slow and incomplete even after 100 hr recovery in clean seawater. The uptake of drilling mud particles caused a significant increase in sinking velocity of copepods, indicating that uptake of drilling mud particles affected their buoyancy. Long-term exposure to low concentrations of drilling mud could therefore cause physical effects such as impacts on the animal's buoyancy which may affect the energy budget of the copepods. The project was financed by internal funding by the contributing research institutes SINTEF (project number 809T1601), NTNU and BioTrix. The establishment of the Calanus finmarchicus cultures was financed by the Research Council of Norway (157687/S40 and 170429/S40). acceptedVersion Article in Journal/Newspaper Calanus finmarchicus Copepods SINTEF Open (Brage) Norway Journal of Toxicology and Environmental Health, Part A 80 16-18 907 915 |
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SINTEF Open (Brage) |
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ftsintef |
language |
English |
description |
The aim of this study was to investigate impacts of fine particulate fraction of a commonly used barite-containing drilling mud on the pelagic filter feeding copepod Calanus finmarchicus. The results show that the tested drilling mud had a low acute toxicity on C. finmarchicus (LC50 > 320 mg/L) and that the observed toxicity was likely caused by dissolved constituents in the mud and not the particle phase containing the weighting agent barite. Further, animals were exposed to drilling mud at a concentration of 10 mg/L for 168 hr followed by a 100 hr recovery phase. A rapid uptake of drilling mud particles was observed, while the excretion was slow and incomplete even after 100 hr recovery in clean seawater. The uptake of drilling mud particles caused a significant increase in sinking velocity of copepods, indicating that uptake of drilling mud particles affected their buoyancy. Long-term exposure to low concentrations of drilling mud could therefore cause physical effects such as impacts on the animal's buoyancy which may affect the energy budget of the copepods. The project was financed by internal funding by the contributing research institutes SINTEF (project number 809T1601), NTNU and BioTrix. The establishment of the Calanus finmarchicus cultures was financed by the Research Council of Norway (157687/S40 and 170429/S40). acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Farkas, Julia Yvonne Bådsvik, Camilla Altin, Dag Nordtug, Trond Olsen, Anders Johny Hansen, Bjørn Henrik |
spellingShingle |
Farkas, Julia Yvonne Bådsvik, Camilla Altin, Dag Nordtug, Trond Olsen, Anders Johny Hansen, Bjørn Henrik Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus |
author_facet |
Farkas, Julia Yvonne Bådsvik, Camilla Altin, Dag Nordtug, Trond Olsen, Anders Johny Hansen, Bjørn Henrik |
author_sort |
Farkas, Julia |
title |
Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus |
title_short |
Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus |
title_full |
Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus |
title_fullStr |
Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus |
title_full_unstemmed |
Acute and physical effects of water-based drilling mud in the marine copepod Calanus finmarchicus |
title_sort |
acute and physical effects of water-based drilling mud in the marine copepod calanus finmarchicus |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2467443 https://doi.org/10.1080/15287394.2017.1352197 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Calanus finmarchicus Copepods |
genre_facet |
Calanus finmarchicus Copepods |
op_source |
907-915 80 Journal of Toxicology and Environmental Health 16-18 |
op_relation |
Journal of Toxicology and Environmental Health. 2017, 80 (16-18), 907-915. urn:issn:1528-7394 http://hdl.handle.net/11250/2467443 https://doi.org/10.1080/15287394.2017.1352197 cristin:1498468 |
op_rights |
Navngivelse-Ikkekommersiell-DelPåSammeVilkår 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-sa/4.0/deed.no The authors |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/10.1080/15287394.2017.1352197 |
container_title |
Journal of Toxicology and Environmental Health, Part A |
container_volume |
80 |
container_issue |
16-18 |
container_start_page |
907 |
op_container_end_page |
915 |
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