The Potential of Kelp Saccharina japonica in Shielding Pacific Oyster Crassostrea gigas From Elevated Seawater pCO 2 Stress
Ocean acidification (OA) caused by elevated atmospheric CO2 concentration is predicted to have negative impacts on marine bivalves in aquaculture. However, to date, most of our knowledge is derived from short-term laboratory-based experiments, which are difficult to scale to real-world production. T...
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Online Access: | https://hdl.handle.net/11250/3022274 https://doi.org/10.3389/fmars.2022.862172 |
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ftimr:oai:imr.brage.unit.no:11250/3022274 2023-05-15T15:58:19+02:00 The Potential of Kelp Saccharina japonica in Shielding Pacific Oyster Crassostrea gigas From Elevated Seawater pCO 2 Stress Jiang, Zengjie Jiang, Weiwei Rastrick, Samuel Wang, Xiaoqin Fang, Jinghui Du, Meirong Gao, Yaping Mao, Yuze Strand, Øivind Fang, Jianguang 2022 application/pdf https://hdl.handle.net/11250/3022274 https://doi.org/10.3389/fmars.2022.862172 eng eng Frontiers in Marine Science. 2022, 9 . urn:issn:2296-7745 https://hdl.handle.net/11250/3022274 https://doi.org/10.3389/fmars.2022.862172 cristin:2051273 10 9 Frontiers in Marine Science Peer reviewed Journal article 2022 ftimr https://doi.org/10.3389/fmars.2022.862172 2022-10-05T22:42:26Z Ocean acidification (OA) caused by elevated atmospheric CO2 concentration is predicted to have negative impacts on marine bivalves in aquaculture. However, to date, most of our knowledge is derived from short-term laboratory-based experiments, which are difficult to scale to real-world production. Therefore, field experiments, such as this study, are critical for improving ecological relevance. Due to the ability of seaweed to absorb dissolved carbon dioxide from the surrounding seawater through photosynthesis, seaweed has gained theoretical attention as a potential partner of bivalves in integrated aquaculture to help mitigate the adverse effects of OA. Consequently, this study investigates the impact of elevated pCO2 on the physiological responses of the Pacific oyster Crassostrea gigas in the presence and absence of kelp (Saccharina japonica) using in situ mesocosms. For 30 days, mesocosms were exposed to six treatments, consisting of two pCO2 treatments (500 and 900 μatm) combined with three biotic treatments (oyster alone, kelp alone, and integrated kelp and oyster aquaculture). Results showed that the clearance rate (CR) and scope for growth (SfG) of C. gigas were significantly reduced by elevated pCO2, whereas respiration rates (MO2) and ammonium excretion rates (ER) were significantly increased. However, food absorption efficiency (AE) was not significantly affected by elevated pCO2. The presence of S. japonica changed the daytime pHNBS of experimental units by ~0.16 units in the elevated pCO2 treatment. As a consequence, CR and SfG significantly increased and MO2 and ER decreased compared to C. gigas exposed to elevated pCO2 without S. japonica. These findings indicate that the presence of S. japonica in integrated aquaculture may help shield C. gigas from the negative effects of elevated seawater pCO2. publishedVersion Article in Journal/Newspaper Crassostrea gigas Ocean acidification Pacific oyster Institute for Marine Research: Brage IMR Pacific Frontiers in Marine Science 9 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
Ocean acidification (OA) caused by elevated atmospheric CO2 concentration is predicted to have negative impacts on marine bivalves in aquaculture. However, to date, most of our knowledge is derived from short-term laboratory-based experiments, which are difficult to scale to real-world production. Therefore, field experiments, such as this study, are critical for improving ecological relevance. Due to the ability of seaweed to absorb dissolved carbon dioxide from the surrounding seawater through photosynthesis, seaweed has gained theoretical attention as a potential partner of bivalves in integrated aquaculture to help mitigate the adverse effects of OA. Consequently, this study investigates the impact of elevated pCO2 on the physiological responses of the Pacific oyster Crassostrea gigas in the presence and absence of kelp (Saccharina japonica) using in situ mesocosms. For 30 days, mesocosms were exposed to six treatments, consisting of two pCO2 treatments (500 and 900 μatm) combined with three biotic treatments (oyster alone, kelp alone, and integrated kelp and oyster aquaculture). Results showed that the clearance rate (CR) and scope for growth (SfG) of C. gigas were significantly reduced by elevated pCO2, whereas respiration rates (MO2) and ammonium excretion rates (ER) were significantly increased. However, food absorption efficiency (AE) was not significantly affected by elevated pCO2. The presence of S. japonica changed the daytime pHNBS of experimental units by ~0.16 units in the elevated pCO2 treatment. As a consequence, CR and SfG significantly increased and MO2 and ER decreased compared to C. gigas exposed to elevated pCO2 without S. japonica. These findings indicate that the presence of S. japonica in integrated aquaculture may help shield C. gigas from the negative effects of elevated seawater pCO2. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Jiang, Zengjie Jiang, Weiwei Rastrick, Samuel Wang, Xiaoqin Fang, Jinghui Du, Meirong Gao, Yaping Mao, Yuze Strand, Øivind Fang, Jianguang |
spellingShingle |
Jiang, Zengjie Jiang, Weiwei Rastrick, Samuel Wang, Xiaoqin Fang, Jinghui Du, Meirong Gao, Yaping Mao, Yuze Strand, Øivind Fang, Jianguang The Potential of Kelp Saccharina japonica in Shielding Pacific Oyster Crassostrea gigas From Elevated Seawater pCO 2 Stress |
author_facet |
Jiang, Zengjie Jiang, Weiwei Rastrick, Samuel Wang, Xiaoqin Fang, Jinghui Du, Meirong Gao, Yaping Mao, Yuze Strand, Øivind Fang, Jianguang |
author_sort |
Jiang, Zengjie |
title |
The Potential of Kelp Saccharina japonica in Shielding Pacific Oyster Crassostrea gigas From Elevated Seawater pCO 2 Stress |
title_short |
The Potential of Kelp Saccharina japonica in Shielding Pacific Oyster Crassostrea gigas From Elevated Seawater pCO 2 Stress |
title_full |
The Potential of Kelp Saccharina japonica in Shielding Pacific Oyster Crassostrea gigas From Elevated Seawater pCO 2 Stress |
title_fullStr |
The Potential of Kelp Saccharina japonica in Shielding Pacific Oyster Crassostrea gigas From Elevated Seawater pCO 2 Stress |
title_full_unstemmed |
The Potential of Kelp Saccharina japonica in Shielding Pacific Oyster Crassostrea gigas From Elevated Seawater pCO 2 Stress |
title_sort |
potential of kelp saccharina japonica in shielding pacific oyster crassostrea gigas from elevated seawater pco 2 stress |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3022274 https://doi.org/10.3389/fmars.2022.862172 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Ocean acidification Pacific oyster |
genre_facet |
Crassostrea gigas Ocean acidification Pacific oyster |
op_source |
10 9 Frontiers in Marine Science |
op_relation |
Frontiers in Marine Science. 2022, 9 . urn:issn:2296-7745 https://hdl.handle.net/11250/3022274 https://doi.org/10.3389/fmars.2022.862172 cristin:2051273 |
op_doi |
https://doi.org/10.3389/fmars.2022.862172 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
_version_ |
1766394049219002368 |