Effect of ocean acidification on the fatty acid composition of a natural plankton community
The effect of ocean acidification on the fatty acid composition of a natural plankton community in the Arctic was studied in a large-scale mesocosm experiment, carried out in Kongsfjorden (Svalbard, Norway) at 79°N. Nine mesocosms of ~50 m3 each were exposed to 8 different pCO2 levels (from natural...
Published in: | Biogeosciences |
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COPERNICUS GESELLSCHAFT MBH
2013
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Online Access: | https://epic.awi.de/id/eprint/32864/ https://epic.awi.de/id/eprint/32864/13/Leu_etal_BG_2013.pdf https://epic.awi.de/id/eprint/32864/14/Leu_etal_BG_2013_supplement.pdf https://hdl.handle.net/10013/epic.41421 https://hdl.handle.net/10013/epic.41421.d013 https://hdl.handle.net/10013/epic.41421.d014 |
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ftawi:oai:epic.awi.de:32864 2023-05-15T15:09:28+02:00 Effect of ocean acidification on the fatty acid composition of a natural plankton community Leu, Eva Daase, Malin Schulz, Kai G. Stuhr, A. Riebesell, Ulf 2013 application/pdf https://epic.awi.de/id/eprint/32864/ https://epic.awi.de/id/eprint/32864/13/Leu_etal_BG_2013.pdf https://epic.awi.de/id/eprint/32864/14/Leu_etal_BG_2013_supplement.pdf https://hdl.handle.net/10013/epic.41421 https://hdl.handle.net/10013/epic.41421.d013 https://hdl.handle.net/10013/epic.41421.d014 unknown COPERNICUS GESELLSCHAFT MBH https://epic.awi.de/id/eprint/32864/13/Leu_etal_BG_2013.pdf https://hdl.handle.net/10013/epic.41421.d013 https://epic.awi.de/id/eprint/32864/14/Leu_etal_BG_2013_supplement.pdf https://hdl.handle.net/10013/epic.41421.d014 Leu, E. , Daase, M. , Schulz, K. G. , Stuhr, A. and Riebesell, U. (2013) Effect of ocean acidification on the fatty acid composition of a natural plankton community , Biogeosciences, 10 , pp. 1143-1153 . doi:10.5194/bg-10-1143-2013 <https://doi.org/10.5194/bg-10-1143-2013> , hdl:10013/epic.41421 EPIC3Biogeosciences, COPERNICUS GESELLSCHAFT MBH, 10, pp. 1143-1153, ISSN: 1726-4170 Article isiRev 2013 ftawi https://doi.org/10.5194/bg-10-1143-2013 2021-12-24T15:38:37Z The effect of ocean acidification on the fatty acid composition of a natural plankton community in the Arctic was studied in a large-scale mesocosm experiment, carried out in Kongsfjorden (Svalbard, Norway) at 79°N. Nine mesocosms of ~50 m3 each were exposed to 8 different pCO2 levels (from natural background conditions to ~1420 µatm), yielding pH values (on the total scale) from ~8.3 to 7.5. Inorganic nutrients were added on day 13. The phytoplankton development during this 30 days experiment passed three distinct phases: (1) prior to the addition of inorganic nutrients, (2) first bloom after nutrient addition, and (3) second bloom after nutrient addition. The fatty acid composition of the natural plankton community was analysed and showed, in general, high percentages of polyunsaturated fatty acids (PUFAs): 44-60% of total fatty acids. Positive correlations with pCO2 were found for most PUFAs during phases 2 and/or 3, with the exception of 20:5n3 (eicosapentaenoic acid, EPA), an important diatom marker. These correlations are probably linked to changes in taxonomic composition in response to pCO2. While diatoms (together with prasinophytes and haptophytes) increased during phase 3 mainly in the low and intermediate pCO2 treatments, dinoflagellates were favoured by high CO2 concentrations during the same time period. This is reflected in the development of group-specific fatty acid trophic markers. No indications were found for a generally detrimental effect of ocean acidification on the planktonic food quality in terms of essential fatty acids. Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Svalbard Norway Biogeosciences 10 2 1143 1153 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The effect of ocean acidification on the fatty acid composition of a natural plankton community in the Arctic was studied in a large-scale mesocosm experiment, carried out in Kongsfjorden (Svalbard, Norway) at 79°N. Nine mesocosms of ~50 m3 each were exposed to 8 different pCO2 levels (from natural background conditions to ~1420 µatm), yielding pH values (on the total scale) from ~8.3 to 7.5. Inorganic nutrients were added on day 13. The phytoplankton development during this 30 days experiment passed three distinct phases: (1) prior to the addition of inorganic nutrients, (2) first bloom after nutrient addition, and (3) second bloom after nutrient addition. The fatty acid composition of the natural plankton community was analysed and showed, in general, high percentages of polyunsaturated fatty acids (PUFAs): 44-60% of total fatty acids. Positive correlations with pCO2 were found for most PUFAs during phases 2 and/or 3, with the exception of 20:5n3 (eicosapentaenoic acid, EPA), an important diatom marker. These correlations are probably linked to changes in taxonomic composition in response to pCO2. While diatoms (together with prasinophytes and haptophytes) increased during phase 3 mainly in the low and intermediate pCO2 treatments, dinoflagellates were favoured by high CO2 concentrations during the same time period. This is reflected in the development of group-specific fatty acid trophic markers. No indications were found for a generally detrimental effect of ocean acidification on the planktonic food quality in terms of essential fatty acids. |
format |
Article in Journal/Newspaper |
author |
Leu, Eva Daase, Malin Schulz, Kai G. Stuhr, A. Riebesell, Ulf |
spellingShingle |
Leu, Eva Daase, Malin Schulz, Kai G. Stuhr, A. Riebesell, Ulf Effect of ocean acidification on the fatty acid composition of a natural plankton community |
author_facet |
Leu, Eva Daase, Malin Schulz, Kai G. Stuhr, A. Riebesell, Ulf |
author_sort |
Leu, Eva |
title |
Effect of ocean acidification on the fatty acid composition of a natural plankton community |
title_short |
Effect of ocean acidification on the fatty acid composition of a natural plankton community |
title_full |
Effect of ocean acidification on the fatty acid composition of a natural plankton community |
title_fullStr |
Effect of ocean acidification on the fatty acid composition of a natural plankton community |
title_full_unstemmed |
Effect of ocean acidification on the fatty acid composition of a natural plankton community |
title_sort |
effect of ocean acidification on the fatty acid composition of a natural plankton community |
publisher |
COPERNICUS GESELLSCHAFT MBH |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/32864/ https://epic.awi.de/id/eprint/32864/13/Leu_etal_BG_2013.pdf https://epic.awi.de/id/eprint/32864/14/Leu_etal_BG_2013_supplement.pdf https://hdl.handle.net/10013/epic.41421 https://hdl.handle.net/10013/epic.41421.d013 https://hdl.handle.net/10013/epic.41421.d014 |
geographic |
Arctic Svalbard Norway |
geographic_facet |
Arctic Svalbard Norway |
genre |
Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard |
op_source |
EPIC3Biogeosciences, COPERNICUS GESELLSCHAFT MBH, 10, pp. 1143-1153, ISSN: 1726-4170 |
op_relation |
https://epic.awi.de/id/eprint/32864/13/Leu_etal_BG_2013.pdf https://hdl.handle.net/10013/epic.41421.d013 https://epic.awi.de/id/eprint/32864/14/Leu_etal_BG_2013_supplement.pdf https://hdl.handle.net/10013/epic.41421.d014 Leu, E. , Daase, M. , Schulz, K. G. , Stuhr, A. and Riebesell, U. (2013) Effect of ocean acidification on the fatty acid composition of a natural plankton community , Biogeosciences, 10 , pp. 1143-1153 . doi:10.5194/bg-10-1143-2013 <https://doi.org/10.5194/bg-10-1143-2013> , hdl:10013/epic.41421 |
op_doi |
https://doi.org/10.5194/bg-10-1143-2013 |
container_title |
Biogeosciences |
container_volume |
10 |
container_issue |
2 |
container_start_page |
1143 |
op_container_end_page |
1153 |
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1766340662623469568 |