Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification
The increasing CO2 concentration in the atmosphere caused by burning fossil fuels leads to increasing pCO2 and decreasing pH in the oceans worldwide. These changes may severely affect the performance and trophic interactions of marine organisms and, thus, ecosystem functioning. Calanoid copepods are...
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ftawi:oai:epic.awi.de:35958 2024-09-09T19:34:58+00:00 Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification Niehoff, Barbara 2014-03-20 https://epic.awi.de/id/eprint/35958/ https://hdl.handle.net/10013/epic.43956 unknown Niehoff, B. (2014) Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification , Seminar, Technical University Copenhagen, Denmark, 20 March 2014 - 20 March 2014 . hdl:10013/epic.43956 EPIC3Seminar, Technical University Copenhagen, Denmark, 2014-03-20-2014-03-20 Conference notRev 2014 ftawi 2024-06-24T04:09:53Z The increasing CO2 concentration in the atmosphere caused by burning fossil fuels leads to increasing pCO2 and decreasing pH in the oceans worldwide. These changes may severely affect the performance and trophic interactions of marine organisms and, thus, ecosystem functioning. Calanoid copepods are key components of pelagic food webs, linking primary production and higher trophic levels. Therefore, our studies aim at a comprehensive understanding of the response of dominant species to ocean acidification. In incubation experiments, direct physiological and ecological effects of elevated pCO2 were investigated in copepodites (stage V) of Calanus finmarchicus, Calanus glacialis and C. hyperboreus; synergistic effects of pCO2 and temperature were studied in female C. hyperboreus. In addition, effects of ocean acidification on zooplankton communities were tackled in large-scale mesocosm experiments, comparing a boreal and a high latitude ecosystem. With few exceptions, we did not find significant direct effects of elevated pCO2 on copepods and our data suggest that this group is generally robust to CO2 concentrations predicted for the end of the century. There is, however, evidence that algal communities may change at elevated pCO2 suggesting that ocean acidification has the potential via indirect effects to influence life cycle events and population dynamics of copepods. Conference Object Calanus finmarchicus Calanus glacialis Ocean acidification Copepods Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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The increasing CO2 concentration in the atmosphere caused by burning fossil fuels leads to increasing pCO2 and decreasing pH in the oceans worldwide. These changes may severely affect the performance and trophic interactions of marine organisms and, thus, ecosystem functioning. Calanoid copepods are key components of pelagic food webs, linking primary production and higher trophic levels. Therefore, our studies aim at a comprehensive understanding of the response of dominant species to ocean acidification. In incubation experiments, direct physiological and ecological effects of elevated pCO2 were investigated in copepodites (stage V) of Calanus finmarchicus, Calanus glacialis and C. hyperboreus; synergistic effects of pCO2 and temperature were studied in female C. hyperboreus. In addition, effects of ocean acidification on zooplankton communities were tackled in large-scale mesocosm experiments, comparing a boreal and a high latitude ecosystem. With few exceptions, we did not find significant direct effects of elevated pCO2 on copepods and our data suggest that this group is generally robust to CO2 concentrations predicted for the end of the century. There is, however, evidence that algal communities may change at elevated pCO2 suggesting that ocean acidification has the potential via indirect effects to influence life cycle events and population dynamics of copepods. |
format |
Conference Object |
author |
Niehoff, Barbara |
spellingShingle |
Niehoff, Barbara Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification |
author_facet |
Niehoff, Barbara |
author_sort |
Niehoff, Barbara |
title |
Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification |
title_short |
Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification |
title_full |
Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification |
title_fullStr |
Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification |
title_full_unstemmed |
Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification |
title_sort |
performance of dominant copepod species at elevated pco2 indicates robustness to ocean acidification |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/35958/ https://hdl.handle.net/10013/epic.43956 |
genre |
Calanus finmarchicus Calanus glacialis Ocean acidification Copepods |
genre_facet |
Calanus finmarchicus Calanus glacialis Ocean acidification Copepods |
op_source |
EPIC3Seminar, Technical University Copenhagen, Denmark, 2014-03-20-2014-03-20 |
op_relation |
Niehoff, B. (2014) Performance of dominant copepod species at elevated pCO2 indicates robustness to ocean acidification , Seminar, Technical University Copenhagen, Denmark, 20 March 2014 - 20 March 2014 . hdl:10013/epic.43956 |
_version_ |
1809904395242962944 |