Effects of dispersed oil on reproduction in the cold water copepod Calanus finmarchicus (Gunnerus)
Following a 120-h exposure period to 3 concentrations of oil dispersions (0.022 mg L−1, 1.8 mg L−1, and 16.5 mg L−1, plus controls) generated from a North Sea crude oil and a subsequent 21-d recovery, mortality, and several reproduction endpoints (egg production rates, egg hatching success, and frac...
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ftpubmed:oai:pubmedcentral.nih.gov:3883093 2023-05-15T15:47:56+02:00 Effects of dispersed oil on reproduction in the cold water copepod Calanus finmarchicus (Gunnerus) Olsen, Anders Johny Nordtug, Trond Altin, Dag Lervik, Morten Hansen, Bjørn Henrik 2013-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3883093 http://www.ncbi.nlm.nih.gov/pubmed/23661343 https://doi.org/10.1002/etc.2273 en eng Wiley Periodicals http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3883093 http://www.ncbi.nlm.nih.gov/pubmed/23661343 http://dx.doi.org/10.1002/etc.2273 © 2013 The Authors. Environmental Toxicology and Chemistry Published by Wiley Periodicals, Inc., on behalf of SETAC. http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation. CC-BY Environmental Toxicology Text 2013 ftpubmed https://doi.org/10.1002/etc.2273 2014-01-12T01:46:22Z Following a 120-h exposure period to 3 concentrations of oil dispersions (0.022 mg L−1, 1.8 mg L−1, and 16.5 mg L−1, plus controls) generated from a North Sea crude oil and a subsequent 21-d recovery, mortality, and several reproduction endpoints (egg production rates, egg hatching success, and fraction of females participating in reproduction) in Calanus finmarchicus were studied. Concentration-dependent mortality was found during exposure, averaging to 6%, 3%, 15%, and 42% for the controls and 3 exposure levels, respectively. At the start of the recovery period, mean egg production rates of surviving females from the highest concentrations were very low, but reproduction subsequently improved. In a 4-d single female reproduction test starting 13 d postexposure, no significant differences in egg production rates or hatching success were found between reproducing control and exposed copepods. However, a significantly lower portion of the surviving females from the highest exposure participated in egg production. The results indicate that although short-term exposure to oil-polluted water after an oil spill can induce severe mortality and temporarily suspend reproduction, copepods may recover and produce viable offspring soon after exposure. The results might imply that for C. finmarchicus populations, the impact from short-term exposure to an oil spill might be predicted from acute mortality and that delayed effects make only a limited contribution to population decrease. Text Calanus finmarchicus Copepods PubMed Central (PMC) Environmental Toxicology and Chemistry 32 9 2045 2055 |
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English |
topic |
Environmental Toxicology |
spellingShingle |
Environmental Toxicology Olsen, Anders Johny Nordtug, Trond Altin, Dag Lervik, Morten Hansen, Bjørn Henrik Effects of dispersed oil on reproduction in the cold water copepod Calanus finmarchicus (Gunnerus) |
topic_facet |
Environmental Toxicology |
description |
Following a 120-h exposure period to 3 concentrations of oil dispersions (0.022 mg L−1, 1.8 mg L−1, and 16.5 mg L−1, plus controls) generated from a North Sea crude oil and a subsequent 21-d recovery, mortality, and several reproduction endpoints (egg production rates, egg hatching success, and fraction of females participating in reproduction) in Calanus finmarchicus were studied. Concentration-dependent mortality was found during exposure, averaging to 6%, 3%, 15%, and 42% for the controls and 3 exposure levels, respectively. At the start of the recovery period, mean egg production rates of surviving females from the highest concentrations were very low, but reproduction subsequently improved. In a 4-d single female reproduction test starting 13 d postexposure, no significant differences in egg production rates or hatching success were found between reproducing control and exposed copepods. However, a significantly lower portion of the surviving females from the highest exposure participated in egg production. The results indicate that although short-term exposure to oil-polluted water after an oil spill can induce severe mortality and temporarily suspend reproduction, copepods may recover and produce viable offspring soon after exposure. The results might imply that for C. finmarchicus populations, the impact from short-term exposure to an oil spill might be predicted from acute mortality and that delayed effects make only a limited contribution to population decrease. |
format |
Text |
author |
Olsen, Anders Johny Nordtug, Trond Altin, Dag Lervik, Morten Hansen, Bjørn Henrik |
author_facet |
Olsen, Anders Johny Nordtug, Trond Altin, Dag Lervik, Morten Hansen, Bjørn Henrik |
author_sort |
Olsen, Anders Johny |
title |
Effects of dispersed oil on reproduction in the cold water copepod Calanus finmarchicus (Gunnerus) |
title_short |
Effects of dispersed oil on reproduction in the cold water copepod Calanus finmarchicus (Gunnerus) |
title_full |
Effects of dispersed oil on reproduction in the cold water copepod Calanus finmarchicus (Gunnerus) |
title_fullStr |
Effects of dispersed oil on reproduction in the cold water copepod Calanus finmarchicus (Gunnerus) |
title_full_unstemmed |
Effects of dispersed oil on reproduction in the cold water copepod Calanus finmarchicus (Gunnerus) |
title_sort |
effects of dispersed oil on reproduction in the cold water copepod calanus finmarchicus (gunnerus) |
publisher |
Wiley Periodicals |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3883093 http://www.ncbi.nlm.nih.gov/pubmed/23661343 https://doi.org/10.1002/etc.2273 |
genre |
Calanus finmarchicus Copepods |
genre_facet |
Calanus finmarchicus Copepods |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3883093 http://www.ncbi.nlm.nih.gov/pubmed/23661343 http://dx.doi.org/10.1002/etc.2273 |
op_rights |
© 2013 The Authors. Environmental Toxicology and Chemistry Published by Wiley Periodicals, Inc., on behalf of SETAC. http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/etc.2273 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
32 |
container_issue |
9 |
container_start_page |
2045 |
op_container_end_page |
2055 |
_version_ |
1766382903435984896 |