Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential
Ocean acidification has the potential to affect growth and calcification of benthic marine invertebrates, particularly during their early life history. We exposed field-collected juveniles of Asterias rubens from Kiel Fjord (western Baltic Sea) to 3 seawater CO2 partial pressure (pCO2) levels (rangi...
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Online Access: | https://oceanrep.geomar.de/id/eprint/25750/ https://oceanrep.geomar.de/id/eprint/25750/1/m509p227.pdf https://doi.org/10.3354/meps10884 |
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ftoceanrep:oai:oceanrep.geomar.de:25750 2023-05-15T17:51:43+02:00 Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential Appelhans, Yasmin Thomsen, Jörn Opitz, Sebastian Pansch, Christian Melzner, Frank Wahl, Martin 2014-08-27 text https://oceanrep.geomar.de/id/eprint/25750/ https://oceanrep.geomar.de/id/eprint/25750/1/m509p227.pdf https://doi.org/10.3354/meps10884 en eng Inter Research https://oceanrep.geomar.de/id/eprint/25750/1/m509p227.pdf Appelhans, Y., Thomsen, J., Opitz, S., Pansch, C. , Melzner, F. and Wahl, M. (2014) Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential. Open Access Marine Ecology Progress Series, 509 . pp. 227-239. DOI 10.3354/meps10884 <https://doi.org/10.3354/meps10884>. doi:10.3354/meps10884 info:eu-repo/semantics/openAccess Article PeerReviewed info:eu-repo/semantics/article 2014 ftoceanrep https://doi.org/10.3354/meps10884 2023-04-07T15:14:41Z Ocean acidification has the potential to affect growth and calcification of benthic marine invertebrates, particularly during their early life history. We exposed field-collected juveniles of Asterias rubens from Kiel Fjord (western Baltic Sea) to 3 seawater CO2 partial pressure (pCO2) levels (ranging from around 650 to 3500 µatm) in a long-term (39 wk) and a short-term (6 wk) experiment. In both experiments, survival and calcification were not affected by elevated pCO2. However, feeding rates decreased strongly with increasing pCO2, while aerobic metabolism and NH4+ excretion were not significantly affected by CO2 exposure. Consequently, high pCO2 reduced the scope for growth in A. rubens. Growth rates decreased substantially with increasing pCO2 and were reduced even at pCO2 levels occurring in the habitat today (e.g. during upwelling events). Sea stars were not able to acclimate to higher pCO2, and growth performance did not recover during the long-term experiment. Therefore, the top-down control exerted by this keystone species may be diminished during periods of high environmental pCO2 that already occur occasionally and will be even higher in the future. However, some individuals were able to grow at high rates even at high pCO2, indicating potential for rapid adaption. The selection of adapted specimens of A. rubens in this seasonally acidified habitat may lead to higher CO2 tolerance in adult sea stars of this population compared to the juvenile stage. Future studies need to address the synergistic effects of multiple stressors such as acidification, warming and reduced salinity, which will simultaneously impact the performance of sea stars in this habitat. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Marine Ecology Progress Series 509 227 239 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
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English |
description |
Ocean acidification has the potential to affect growth and calcification of benthic marine invertebrates, particularly during their early life history. We exposed field-collected juveniles of Asterias rubens from Kiel Fjord (western Baltic Sea) to 3 seawater CO2 partial pressure (pCO2) levels (ranging from around 650 to 3500 µatm) in a long-term (39 wk) and a short-term (6 wk) experiment. In both experiments, survival and calcification were not affected by elevated pCO2. However, feeding rates decreased strongly with increasing pCO2, while aerobic metabolism and NH4+ excretion were not significantly affected by CO2 exposure. Consequently, high pCO2 reduced the scope for growth in A. rubens. Growth rates decreased substantially with increasing pCO2 and were reduced even at pCO2 levels occurring in the habitat today (e.g. during upwelling events). Sea stars were not able to acclimate to higher pCO2, and growth performance did not recover during the long-term experiment. Therefore, the top-down control exerted by this keystone species may be diminished during periods of high environmental pCO2 that already occur occasionally and will be even higher in the future. However, some individuals were able to grow at high rates even at high pCO2, indicating potential for rapid adaption. The selection of adapted specimens of A. rubens in this seasonally acidified habitat may lead to higher CO2 tolerance in adult sea stars of this population compared to the juvenile stage. Future studies need to address the synergistic effects of multiple stressors such as acidification, warming and reduced salinity, which will simultaneously impact the performance of sea stars in this habitat. |
format |
Article in Journal/Newspaper |
author |
Appelhans, Yasmin Thomsen, Jörn Opitz, Sebastian Pansch, Christian Melzner, Frank Wahl, Martin |
spellingShingle |
Appelhans, Yasmin Thomsen, Jörn Opitz, Sebastian Pansch, Christian Melzner, Frank Wahl, Martin Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential |
author_facet |
Appelhans, Yasmin Thomsen, Jörn Opitz, Sebastian Pansch, Christian Melzner, Frank Wahl, Martin |
author_sort |
Appelhans, Yasmin |
title |
Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential |
title_short |
Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential |
title_full |
Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential |
title_fullStr |
Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential |
title_full_unstemmed |
Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential |
title_sort |
juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential |
publisher |
Inter Research |
publishDate |
2014 |
url |
https://oceanrep.geomar.de/id/eprint/25750/ https://oceanrep.geomar.de/id/eprint/25750/1/m509p227.pdf https://doi.org/10.3354/meps10884 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/25750/1/m509p227.pdf Appelhans, Y., Thomsen, J., Opitz, S., Pansch, C. , Melzner, F. and Wahl, M. (2014) Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential. Open Access Marine Ecology Progress Series, 509 . pp. 227-239. DOI 10.3354/meps10884 <https://doi.org/10.3354/meps10884>. doi:10.3354/meps10884 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps10884 |
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Marine Ecology Progress Series |
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509 |
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227 |
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239 |
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