Experiment: Food availability outweighs ocean acidification effects in juvenile Mytilus edulis
Ocean acidification is expected to decrease calcification rates of bivalves. Nevertheless in many coastal areas high pCO2 variability is encountered already today. Kiel Fjord (Western Baltic Sea) is a brackish (12-20 g kg-1) and CO2 enriched habitat, but the blue mussel Mytilus edulis dominates the...
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PANGAEA
2013
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.829723 https://doi.org/10.1594/PANGAEA.829723 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.829723 2024-09-15T18:27:47+00:00 Experiment: Food availability outweighs ocean acidification effects in juvenile Mytilus edulis Thomsen, Jörn Casties, Isabel Pansch, Christian Körtzinger, Arne Melzner, Frank 2013 text/tab-separated-values, 7211 data points https://doi.pangaea.de/10.1594/PANGAEA.829723 https://doi.org/10.1594/PANGAEA.829723 en eng PANGAEA Lavigne, Héloïse; Gattuso, Jean-Pierre (2011): seacarb: seawater carbonate chemistry with R. R package version 2.4 [webpage]. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.829723 https://doi.org/10.1594/PANGAEA.829723 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Thomsen, Jörn; Casties, Isabel; Pansch, Christian; Körtzinger, Arne; Melzner, Frank (2013): Food availability outweighs ocean acidification effects in juvenile Mytilus edulis: laboratory and field experiments. Global Change Biology, 19(4), 1017-1027, https://doi.org/10.1111/gcb.12109 Acid-base regulation Alkalinity total standard deviation Animalia Aragonite saturation state Baltic Sea Benthic animals Benthos Bicarbonate ion BIOACID Biological Impacts of Ocean Acidification Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calcium carbonate dry weight mass Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved organic particulate Carbonate ion Carbonate system computation flag Carbon dioxide partial pressure dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.82972310.1111/gcb.12109 2024-07-24T02:31:32Z Ocean acidification is expected to decrease calcification rates of bivalves. Nevertheless in many coastal areas high pCO2 variability is encountered already today. Kiel Fjord (Western Baltic Sea) is a brackish (12-20 g kg-1) and CO2 enriched habitat, but the blue mussel Mytilus edulis dominates the benthic community. In a coupled field and laboratory study we examined the annual pCO2 variability in this habitat and the combined effects of elevated pCO2 and food availability on juvenile M. edulis growth and calcification. In the laboratory experiment, mussel growth and calcification were found to chiefly depend on food supply, with only minor impacts of pCO2 up to 3350 µatm. Kiel Fjord was characterized by strong seasonal pCO2 variability. During summer, maximal pCO2 values of 2500 µatm were observed at the surface and >3000 µatm at the bottom. However, the field growth experiment revealed seven times higher growth and calcification rates of M. edulis at a high pCO2 inner fjord field station (mean pCO2 ca. 1000 µatm) in comparison to a low pCO2 outer fjord station (ca. 600 µatm). In addition, mussels were able to outcompete the barnacle Amphibalanus improvisus at the high pCO2 site. High mussel productivity at the inner fjord site was enabled by higher particulate organic carbon concentrations. Kiel Fjord is highly impacted by eutrophication, which causes bottom water hypoxia and consequently high seawater pCO2. At the same time, elevated nutrient concentrations increase the energy availability for filter feeding organisms such as mussels. Thus M. edulis can dominate over a seemingly more acidification resistant species such as A. improvisus. We conclude that benthic stages of M. edulis tolerate high ambient pCO2 when food supply is abundant and that important habitat characteristics such as species interactions and energy availability need to be considered to predict species vulnerability to ocean acidification. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Acid-base regulation Alkalinity total standard deviation Animalia Aragonite saturation state Baltic Sea Benthic animals Benthos Bicarbonate ion BIOACID Biological Impacts of Ocean Acidification Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calcium carbonate dry weight mass Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved organic particulate Carbonate ion Carbonate system computation flag Carbon dioxide partial pressure |
spellingShingle |
Acid-base regulation Alkalinity total standard deviation Animalia Aragonite saturation state Baltic Sea Benthic animals Benthos Bicarbonate ion BIOACID Biological Impacts of Ocean Acidification Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calcium carbonate dry weight mass Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved organic particulate Carbonate ion Carbonate system computation flag Carbon dioxide partial pressure Thomsen, Jörn Casties, Isabel Pansch, Christian Körtzinger, Arne Melzner, Frank Experiment: Food availability outweighs ocean acidification effects in juvenile Mytilus edulis |
topic_facet |
Acid-base regulation Alkalinity total standard deviation Animalia Aragonite saturation state Baltic Sea Benthic animals Benthos Bicarbonate ion BIOACID Biological Impacts of Ocean Acidification Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calcium carbonate dry weight mass Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved organic particulate Carbonate ion Carbonate system computation flag Carbon dioxide partial pressure |
description |
Ocean acidification is expected to decrease calcification rates of bivalves. Nevertheless in many coastal areas high pCO2 variability is encountered already today. Kiel Fjord (Western Baltic Sea) is a brackish (12-20 g kg-1) and CO2 enriched habitat, but the blue mussel Mytilus edulis dominates the benthic community. In a coupled field and laboratory study we examined the annual pCO2 variability in this habitat and the combined effects of elevated pCO2 and food availability on juvenile M. edulis growth and calcification. In the laboratory experiment, mussel growth and calcification were found to chiefly depend on food supply, with only minor impacts of pCO2 up to 3350 µatm. Kiel Fjord was characterized by strong seasonal pCO2 variability. During summer, maximal pCO2 values of 2500 µatm were observed at the surface and >3000 µatm at the bottom. However, the field growth experiment revealed seven times higher growth and calcification rates of M. edulis at a high pCO2 inner fjord field station (mean pCO2 ca. 1000 µatm) in comparison to a low pCO2 outer fjord station (ca. 600 µatm). In addition, mussels were able to outcompete the barnacle Amphibalanus improvisus at the high pCO2 site. High mussel productivity at the inner fjord site was enabled by higher particulate organic carbon concentrations. Kiel Fjord is highly impacted by eutrophication, which causes bottom water hypoxia and consequently high seawater pCO2. At the same time, elevated nutrient concentrations increase the energy availability for filter feeding organisms such as mussels. Thus M. edulis can dominate over a seemingly more acidification resistant species such as A. improvisus. We conclude that benthic stages of M. edulis tolerate high ambient pCO2 when food supply is abundant and that important habitat characteristics such as species interactions and energy availability need to be considered to predict species vulnerability to ocean acidification. |
format |
Dataset |
author |
Thomsen, Jörn Casties, Isabel Pansch, Christian Körtzinger, Arne Melzner, Frank |
author_facet |
Thomsen, Jörn Casties, Isabel Pansch, Christian Körtzinger, Arne Melzner, Frank |
author_sort |
Thomsen, Jörn |
title |
Experiment: Food availability outweighs ocean acidification effects in juvenile Mytilus edulis |
title_short |
Experiment: Food availability outweighs ocean acidification effects in juvenile Mytilus edulis |
title_full |
Experiment: Food availability outweighs ocean acidification effects in juvenile Mytilus edulis |
title_fullStr |
Experiment: Food availability outweighs ocean acidification effects in juvenile Mytilus edulis |
title_full_unstemmed |
Experiment: Food availability outweighs ocean acidification effects in juvenile Mytilus edulis |
title_sort |
experiment: food availability outweighs ocean acidification effects in juvenile mytilus edulis |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.829723 https://doi.org/10.1594/PANGAEA.829723 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Thomsen, Jörn; Casties, Isabel; Pansch, Christian; Körtzinger, Arne; Melzner, Frank (2013): Food availability outweighs ocean acidification effects in juvenile Mytilus edulis: laboratory and field experiments. Global Change Biology, 19(4), 1017-1027, https://doi.org/10.1111/gcb.12109 |
op_relation |
Lavigne, Héloïse; Gattuso, Jean-Pierre (2011): seacarb: seawater carbonate chemistry with R. R package version 2.4 [webpage]. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.829723 https://doi.org/10.1594/PANGAEA.829723 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.82972310.1111/gcb.12109 |
_version_ |
1810469042450857984 |