Ocean acidification challenges copepod phenotypic plasticity
Ocean acidification is challenging phenotypic plasticity of individuals and populations. Calanoid copepods (zooplankton) are shown to be fairly plastic against altered pH conditions, and laboratory studies indicate that transgenerational effects are one mechanism behind this plasticity. We studied p...
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Copernicus Publications (EGU)
2016
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Online Access: | https://oceanrep.geomar.de/id/eprint/30539/ https://oceanrep.geomar.de/id/eprint/30539/1/bg-13-6171-2016.pdf https://oceanrep.geomar.de/id/eprint/30539/2/bg-13-6171-2016-supplement.pdf https://doi.org/10.5194/bg-13-6171-2016 |
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ftoceanrep:oai:oceanrep.geomar.de:30539 2023-05-15T17:49:17+02:00 Ocean acidification challenges copepod phenotypic plasticity Vehmaa, A. Almen, A.-K. Brutemark, A. Paul, Allanah J. Riebesell, Ulf Furuhagen, S. Engström-Öst, J. 2016-11-15 text https://oceanrep.geomar.de/id/eprint/30539/ https://oceanrep.geomar.de/id/eprint/30539/1/bg-13-6171-2016.pdf https://oceanrep.geomar.de/id/eprint/30539/2/bg-13-6171-2016-supplement.pdf https://doi.org/10.5194/bg-13-6171-2016 en eng Copernicus Publications (EGU) https://oceanrep.geomar.de/id/eprint/30539/1/bg-13-6171-2016.pdf https://oceanrep.geomar.de/id/eprint/30539/2/bg-13-6171-2016-supplement.pdf Vehmaa, A., Almen, A. K., Brutemark, A., Paul, A. J., Riebesell, U. , Furuhagen, S. and Engström-Öst, J. (2016) Ocean acidification challenges copepod phenotypic plasticity. Open Access Biogeosciences (BG), 13 (22). pp. 6171-6182. DOI 10.5194/bg-13-6171-2016 <https://doi.org/10.5194/bg-13-6171-2016>. doi:10.5194/bg-13-6171-2016 cc_by_3.0 info:eu-repo/semantics/openAccess Article PeerReviewed info:eu-repo/semantics/article 2016 ftoceanrep https://doi.org/10.5194/bg-13-6171-2016 2023-04-07T15:22:19Z Ocean acidification is challenging phenotypic plasticity of individuals and populations. Calanoid copepods (zooplankton) are shown to be fairly plastic against altered pH conditions, and laboratory studies indicate that transgenerational effects are one mechanism behind this plasticity. We studied phenotypic plasticity of the copepod Acartia sp. in the course of a pelagic, large-volume mesocosm study that was conducted to investigate ecosystem and biogeochemical responses to ocean acidification. We measured copepod egg production rate, egg-hatching success, adult female size and adult female antioxidant capacity (ORAC) as a function of acidification (fCO2 ∼ 365–1231 µatm) and as a function of quantity and quality of their diet. We used an egg transplant experiment to reveal whether transgenerational effects can alleviate the possible negative effects of ocean acidification on offspring development. We found significant negative effects of ocean acidification on adult female size. In addition, we found signs of a possible threshold at high fCO2, above which adaptive maternal effects cannot alleviate the negative effects of acidification on egg-hatching and nauplii development. We did not find support for the hypothesis that insufficient food quantity (total particulate carbon < 55 µm) or quality (C : N) weakens the transgenerational effects. However, females with high-ORAC-produced eggs with high hatching success. Overall, these results indicate that Acartia sp. could be affected by projected near-future CO2 levels Article in Journal/Newspaper Ocean acidification Copepods OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Biogeosciences 13 22 6171 6182 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Ocean acidification is challenging phenotypic plasticity of individuals and populations. Calanoid copepods (zooplankton) are shown to be fairly plastic against altered pH conditions, and laboratory studies indicate that transgenerational effects are one mechanism behind this plasticity. We studied phenotypic plasticity of the copepod Acartia sp. in the course of a pelagic, large-volume mesocosm study that was conducted to investigate ecosystem and biogeochemical responses to ocean acidification. We measured copepod egg production rate, egg-hatching success, adult female size and adult female antioxidant capacity (ORAC) as a function of acidification (fCO2 ∼ 365–1231 µatm) and as a function of quantity and quality of their diet. We used an egg transplant experiment to reveal whether transgenerational effects can alleviate the possible negative effects of ocean acidification on offspring development. We found significant negative effects of ocean acidification on adult female size. In addition, we found signs of a possible threshold at high fCO2, above which adaptive maternal effects cannot alleviate the negative effects of acidification on egg-hatching and nauplii development. We did not find support for the hypothesis that insufficient food quantity (total particulate carbon < 55 µm) or quality (C : N) weakens the transgenerational effects. However, females with high-ORAC-produced eggs with high hatching success. Overall, these results indicate that Acartia sp. could be affected by projected near-future CO2 levels |
format |
Article in Journal/Newspaper |
author |
Vehmaa, A. Almen, A.-K. Brutemark, A. Paul, Allanah J. Riebesell, Ulf Furuhagen, S. Engström-Öst, J. |
spellingShingle |
Vehmaa, A. Almen, A.-K. Brutemark, A. Paul, Allanah J. Riebesell, Ulf Furuhagen, S. Engström-Öst, J. Ocean acidification challenges copepod phenotypic plasticity |
author_facet |
Vehmaa, A. Almen, A.-K. Brutemark, A. Paul, Allanah J. Riebesell, Ulf Furuhagen, S. Engström-Öst, J. |
author_sort |
Vehmaa, A. |
title |
Ocean acidification challenges copepod phenotypic plasticity |
title_short |
Ocean acidification challenges copepod phenotypic plasticity |
title_full |
Ocean acidification challenges copepod phenotypic plasticity |
title_fullStr |
Ocean acidification challenges copepod phenotypic plasticity |
title_full_unstemmed |
Ocean acidification challenges copepod phenotypic plasticity |
title_sort |
ocean acidification challenges copepod phenotypic plasticity |
publisher |
Copernicus Publications (EGU) |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/30539/ https://oceanrep.geomar.de/id/eprint/30539/1/bg-13-6171-2016.pdf https://oceanrep.geomar.de/id/eprint/30539/2/bg-13-6171-2016-supplement.pdf https://doi.org/10.5194/bg-13-6171-2016 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_relation |
https://oceanrep.geomar.de/id/eprint/30539/1/bg-13-6171-2016.pdf https://oceanrep.geomar.de/id/eprint/30539/2/bg-13-6171-2016-supplement.pdf Vehmaa, A., Almen, A. K., Brutemark, A., Paul, A. J., Riebesell, U. , Furuhagen, S. and Engström-Öst, J. (2016) Ocean acidification challenges copepod phenotypic plasticity. Open Access Biogeosciences (BG), 13 (22). pp. 6171-6182. DOI 10.5194/bg-13-6171-2016 <https://doi.org/10.5194/bg-13-6171-2016>. doi:10.5194/bg-13-6171-2016 |
op_rights |
cc_by_3.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-13-6171-2016 |
container_title |
Biogeosciences |
container_volume |
13 |
container_issue |
22 |
container_start_page |
6171 |
op_container_end_page |
6182 |
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1766155563560861696 |