Medium-term exposure of the North Atlantic copepod Calanus finmarchicus (Gunnerus, 1770) to CO2-acidified seawater: effects on survival and development
The impact of medium-term exposure to CO2-acidified seawater on survival, growth and development was investigated in the North Atlantic copepod Calanus finmarchicus. Using a custom developed experimental system, fertilized eggs and subsequent development stages were exposed to normal seawater (390 p...
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European Geosciences Union
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2368285 2023-05-15T15:47:55+02:00 Medium-term exposure of the North Atlantic copepod Calanus finmarchicus (Gunnerus, 1770) to CO2-acidified seawater: effects on survival and development Pedersen, Sindre Andre Hansen, Bjørn Henrik Altin, D Olsen, Anders Johny 2015-12-15T13:14:02Z http://hdl.handle.net/11250/2368285 https://doi.org/10.5194/bg-10-7481-2013 eng eng European Geosciences Union http://www.biogeosciences.net/10/7481/2013/bg-10-7481-2013.html Norges forskningsråd: 200806/S30 Biogeosciences 2013, 10(11):7481-7491 urn:issn:1726-4170 http://hdl.handle.net/11250/2368285 https://doi.org/10.5194/bg-10-7481-2013 cristin:1094043 10 Biogeosciences 11 Journal article Peer reviewed 2015 ftntnutrondheimi https://doi.org/10.5194/bg-10-7481-2013 2019-09-17T06:51:19Z The impact of medium-term exposure to CO2-acidified seawater on survival, growth and development was investigated in the North Atlantic copepod Calanus finmarchicus. Using a custom developed experimental system, fertilized eggs and subsequent development stages were exposed to normal seawater (390 ppm CO2) or one of three different levels of CO2-induced acidification (3300, 7300, 9700 ppm CO2). Following the 28-day exposure period, survival was found to be unaffected by exposure to 3300 ppm CO2, but significantly reduced at 7300 and 9700 ppm CO2. Also, the proportion of copepodite stages IV to VI observed in the different treatments was significantly affected in a manner that may indicate a CO2-induced retardation of the rate of ontogenetic development. Morphometric analysis revealed a significant increase in size (prosome length) and lipid storage volume in stage IV copepodites exposed to 3300 ppm CO2 and reduced size in stage III copepodites exposed to 7300 ppm CO2. Together, the findings indicate that a pCO2 level ≤2000 ppm (the highest CO2 level expected by the year 2300) will probably not directly affect survival in C. finmarchicus. Longer term experiments at more moderate CO2 levels are, however, necessary before the possibility that growth and development may be affected below 2000 ppm CO2 can be ruled out. © Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License. Article in Journal/Newspaper Calanus finmarchicus North Atlantic NTNU Open Archive (Norwegian University of Science and Technology) Biogeosciences 10 11 7481 7491 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
The impact of medium-term exposure to CO2-acidified seawater on survival, growth and development was investigated in the North Atlantic copepod Calanus finmarchicus. Using a custom developed experimental system, fertilized eggs and subsequent development stages were exposed to normal seawater (390 ppm CO2) or one of three different levels of CO2-induced acidification (3300, 7300, 9700 ppm CO2). Following the 28-day exposure period, survival was found to be unaffected by exposure to 3300 ppm CO2, but significantly reduced at 7300 and 9700 ppm CO2. Also, the proportion of copepodite stages IV to VI observed in the different treatments was significantly affected in a manner that may indicate a CO2-induced retardation of the rate of ontogenetic development. Morphometric analysis revealed a significant increase in size (prosome length) and lipid storage volume in stage IV copepodites exposed to 3300 ppm CO2 and reduced size in stage III copepodites exposed to 7300 ppm CO2. Together, the findings indicate that a pCO2 level ≤2000 ppm (the highest CO2 level expected by the year 2300) will probably not directly affect survival in C. finmarchicus. Longer term experiments at more moderate CO2 levels are, however, necessary before the possibility that growth and development may be affected below 2000 ppm CO2 can be ruled out. © Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License. |
format |
Article in Journal/Newspaper |
author |
Pedersen, Sindre Andre Hansen, Bjørn Henrik Altin, D Olsen, Anders Johny |
spellingShingle |
Pedersen, Sindre Andre Hansen, Bjørn Henrik Altin, D Olsen, Anders Johny Medium-term exposure of the North Atlantic copepod Calanus finmarchicus (Gunnerus, 1770) to CO2-acidified seawater: effects on survival and development |
author_facet |
Pedersen, Sindre Andre Hansen, Bjørn Henrik Altin, D Olsen, Anders Johny |
author_sort |
Pedersen, Sindre Andre |
title |
Medium-term exposure of the North Atlantic copepod Calanus finmarchicus (Gunnerus, 1770) to CO2-acidified seawater: effects on survival and development |
title_short |
Medium-term exposure of the North Atlantic copepod Calanus finmarchicus (Gunnerus, 1770) to CO2-acidified seawater: effects on survival and development |
title_full |
Medium-term exposure of the North Atlantic copepod Calanus finmarchicus (Gunnerus, 1770) to CO2-acidified seawater: effects on survival and development |
title_fullStr |
Medium-term exposure of the North Atlantic copepod Calanus finmarchicus (Gunnerus, 1770) to CO2-acidified seawater: effects on survival and development |
title_full_unstemmed |
Medium-term exposure of the North Atlantic copepod Calanus finmarchicus (Gunnerus, 1770) to CO2-acidified seawater: effects on survival and development |
title_sort |
medium-term exposure of the north atlantic copepod calanus finmarchicus (gunnerus, 1770) to co2-acidified seawater: effects on survival and development |
publisher |
European Geosciences Union |
publishDate |
2015 |
url |
http://hdl.handle.net/11250/2368285 https://doi.org/10.5194/bg-10-7481-2013 |
genre |
Calanus finmarchicus North Atlantic |
genre_facet |
Calanus finmarchicus North Atlantic |
op_source |
10 Biogeosciences 11 |
op_relation |
http://www.biogeosciences.net/10/7481/2013/bg-10-7481-2013.html Norges forskningsråd: 200806/S30 Biogeosciences 2013, 10(11):7481-7491 urn:issn:1726-4170 http://hdl.handle.net/11250/2368285 https://doi.org/10.5194/bg-10-7481-2013 cristin:1094043 |
op_doi |
https://doi.org/10.5194/bg-10-7481-2013 |
container_title |
Biogeosciences |
container_volume |
10 |
container_issue |
11 |
container_start_page |
7481 |
op_container_end_page |
7491 |
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1766382900273479680 |