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...

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Published in:Journal of Toxicology and Environmental Health, Part A
Main Authors: Farkas, Julia, Yvonne Bådsvik, Camilla, Altin, Dag, Nordtug, Trond, Olsen, Anders Johny, Hansen, Bjørn Henrik
Format: Article in Journal/Newspaper
Language:English
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/11250/2467443
https://doi.org/10.1080/15287394.2017.1352197
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spelling 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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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
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op_doi https://doi.org/10.1080/15287394.2017.1352197
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