Prey dynamics as a buffer: enhancing copepod resilience to ocean alkalinity enhancement
Ocean alkalinity enhancement (OAE) aims to counteract climate change by increasing the ocean’s carbon storage capacity through the addition of alkaline substances into seawater. However, this process alters seawater chemistry, increasing total alkalinity and pH, which can directly influence marine o...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Environmental Research Letters |
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| Online Access: | https://doi.org/10.1088/1748-9326/adaa8c |
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| author | Amrita Bhaumik Giulia Faucher Merle Henning Cédric L Meunier Maarten Boersma |
| author_facet | Amrita Bhaumik Giulia Faucher Merle Henning Cédric L Meunier Maarten Boersma |
| author_sort | Amrita Bhaumik |
| collection | DOAJ |
| description | Ocean alkalinity enhancement (OAE) aims to counteract climate change by increasing the ocean’s carbon storage capacity through the addition of alkaline substances into seawater. However, this process alters seawater chemistry, increasing total alkalinity and pH, which can directly influence marine organisms’ metabolic activities or indirectly impact them through changes in prey availability and quality. This study disentangled the OAE-driven factors that might influence zooplankton physiology. We assessed the direct effects of altered chemistry on the copepod, Temora longicornis, and the indirect effects through changes in the phytoplankton prey, Rhodomonas salina . We cultured the prey under OAE conditions and used it to feed copepods to investigate the indirect effects. We found that OAE negatively impacted prey growth but improved its nutritional quality, thereby offsetting the direct negative impact of OAE on the copepod. These findings regarding OAE’s impact on prey-predator dynamics contribute to a deeper understanding of how OAE may influence zooplankton communities. |
| format | Article |
| id | doaj-art-196c46417fe44c97b4aacc4c89404eea |
| institution | Kabale University |
| issn | 1748-9326 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj-art-196c46417fe44c97b4aacc4c89404eea2025-02-04T08:57:28ZengIOP PublishingEnvironmental Research Letters1748-93262025-01-0120202405810.1088/1748-9326/adaa8cPrey dynamics as a buffer: enhancing copepod resilience to ocean alkalinity enhancementAmrita Bhaumik0https://orcid.org/0000-0003-0575-7726Giulia Faucher1https://orcid.org/0000-0001-8930-477XMerle Henning2https://orcid.org/0009-0002-8087-966XCédric L Meunier3https://orcid.org/0000-0002-4070-4286Maarten Boersma4https://orcid.org/0000-0003-1010-026XAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Biologische Anstalt Helgoland , Kurpromenade, 27483 Helgoland, GermanyBiological Oceanography, GEOMAR Helmholtz Centre for Ocean Research Kiel , 24148 Kiel, GermanyAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Biologische Anstalt Helgoland , Kurpromenade, 27483 Helgoland, GermanyAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Biologische Anstalt Helgoland , Kurpromenade, 27483 Helgoland, GermanyAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Biologische Anstalt Helgoland , Kurpromenade, 27483 Helgoland, Germany; Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Wadden Sea Station , Sylt, Hafenstraße 43, 25992 List, Germany; FB2, University of Bremen , Bremen, GermanyOcean alkalinity enhancement (OAE) aims to counteract climate change by increasing the ocean’s carbon storage capacity through the addition of alkaline substances into seawater. However, this process alters seawater chemistry, increasing total alkalinity and pH, which can directly influence marine organisms’ metabolic activities or indirectly impact them through changes in prey availability and quality. This study disentangled the OAE-driven factors that might influence zooplankton physiology. We assessed the direct effects of altered chemistry on the copepod, Temora longicornis, and the indirect effects through changes in the phytoplankton prey, Rhodomonas salina . We cultured the prey under OAE conditions and used it to feed copepods to investigate the indirect effects. We found that OAE negatively impacted prey growth but improved its nutritional quality, thereby offsetting the direct negative impact of OAE on the copepod. These findings regarding OAE’s impact on prey-predator dynamics contribute to a deeper understanding of how OAE may influence zooplankton communities.https://doi.org/10.1088/1748-9326/adaa8cocean alkalinity enhancementcarbon dioxide removalnegative emission technologyenvironmental impactscopepod |
| spellingShingle | Amrita Bhaumik Giulia Faucher Merle Henning Cédric L Meunier Maarten Boersma Prey dynamics as a buffer: enhancing copepod resilience to ocean alkalinity enhancement Environmental Research Letters ocean alkalinity enhancement carbon dioxide removal negative emission technology environmental impacts copepod |
| title | Prey dynamics as a buffer: enhancing copepod resilience to ocean alkalinity enhancement |
| title_full | Prey dynamics as a buffer: enhancing copepod resilience to ocean alkalinity enhancement |
| title_fullStr | Prey dynamics as a buffer: enhancing copepod resilience to ocean alkalinity enhancement |
| title_full_unstemmed | Prey dynamics as a buffer: enhancing copepod resilience to ocean alkalinity enhancement |
| title_short | Prey dynamics as a buffer: enhancing copepod resilience to ocean alkalinity enhancement |
| title_sort | prey dynamics as a buffer enhancing copepod resilience to ocean alkalinity enhancement |
| topic | ocean alkalinity enhancement carbon dioxide removal negative emission technology environmental impacts copepod |
| url | https://doi.org/10.1088/1748-9326/adaa8c |
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