Biomass Turnover Rates in Metabolically Active and Inactive Marine Calanoid Copepods
Lipid-storing copepods are fundamental to the functioning of marine ecosystems, transferring energy from primary producers to higher trophic levels and sequestering atmospheric carbon (C) in the deep ocean. Quantifying trophic transfer and biogeochemical cycling by copepods requires improved underst...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-06-01
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| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.907290/full |
| _version_ | 1818230733106315264 |
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| author | Daniel J. Mayor Kathryn B. Cook Barry Thornton Florence Atherden Geraint A. Tarling Thomas R. Anderson |
| author_facet | Daniel J. Mayor Kathryn B. Cook Barry Thornton Florence Atherden Geraint A. Tarling Thomas R. Anderson |
| author_sort | Daniel J. Mayor |
| collection | DOAJ |
| description | Lipid-storing copepods are fundamental to the functioning of marine ecosystems, transferring energy from primary producers to higher trophic levels and sequestering atmospheric carbon (C) in the deep ocean. Quantifying trophic transfer and biogeochemical cycling by copepods requires improved understanding of copepod metabolic rates in both surface waters and during lipid-fueled metabolism over winter. Here we present new biomass turnover rates of C and nitrogen (N) in Calanoides acutus, Calanoides natalis, Calanus glacialis and Calanus hyperboreus alongside published data for Calanus finmarchicus and Calanus pacificus. Turnover rates in metabolically active animals, normalised to 10°C, ranged between 0.007 – 0.105 d-1 and 0.004 – 0.065 d-1 for C and N, respectively. Turnover rates of C were typically faster than those for N, supporting the understanding that non-protein C, e.g. lipid, is catabolised faster than protein. Re-analysis of published data indicates that inactive, overwintering C. finmarchicus turn over wax ester lipids at a rate of 0.0016 d-1. These and other basal rate data will facilitate the mechanistic representation of copepod physiology in global biogeochemical models, thereby reducing uncertainties in our predictions of future ocean ecosystem functioning and C sequestration. |
| first_indexed | 2024-12-12T10:39:11Z |
| format | Article |
| id | doaj.art-360fbe6bd24d4c9281316373b378b544 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-12-12T10:39:11Z |
| publishDate | 2022-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-360fbe6bd24d4c9281316373b378b5442022-12-22T00:27:07ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-06-01910.3389/fmars.2022.907290907290Biomass Turnover Rates in Metabolically Active and Inactive Marine Calanoid CopepodsDaniel J. Mayor0Kathryn B. Cook1Barry Thornton2Florence Atherden3Geraint A. Tarling4Thomas R. Anderson5National Oceanography Centre, Southampton, United KingdomNational Oceanography Centre, Southampton, United KingdomJames Hutton Institute, Aberdeen, United KingdomNational Oceanography Centre, Southampton, United KingdomBritish Antarctic Survey, Cambridge, United KingdomNational Oceanography Centre, Southampton, United KingdomLipid-storing copepods are fundamental to the functioning of marine ecosystems, transferring energy from primary producers to higher trophic levels and sequestering atmospheric carbon (C) in the deep ocean. Quantifying trophic transfer and biogeochemical cycling by copepods requires improved understanding of copepod metabolic rates in both surface waters and during lipid-fueled metabolism over winter. Here we present new biomass turnover rates of C and nitrogen (N) in Calanoides acutus, Calanoides natalis, Calanus glacialis and Calanus hyperboreus alongside published data for Calanus finmarchicus and Calanus pacificus. Turnover rates in metabolically active animals, normalised to 10°C, ranged between 0.007 – 0.105 d-1 and 0.004 – 0.065 d-1 for C and N, respectively. Turnover rates of C were typically faster than those for N, supporting the understanding that non-protein C, e.g. lipid, is catabolised faster than protein. Re-analysis of published data indicates that inactive, overwintering C. finmarchicus turn over wax ester lipids at a rate of 0.0016 d-1. These and other basal rate data will facilitate the mechanistic representation of copepod physiology in global biogeochemical models, thereby reducing uncertainties in our predictions of future ocean ecosystem functioning and C sequestration.https://www.frontiersin.org/articles/10.3389/fmars.2022.907290/fulllipid turnoverprotein turnoverbasal metabolismdiapauseecosystem modelphysiology |
| spellingShingle | Daniel J. Mayor Kathryn B. Cook Barry Thornton Florence Atherden Geraint A. Tarling Thomas R. Anderson Biomass Turnover Rates in Metabolically Active and Inactive Marine Calanoid Copepods Frontiers in Marine Science lipid turnover protein turnover basal metabolism diapause ecosystem model physiology |
| title | Biomass Turnover Rates in Metabolically Active and Inactive Marine Calanoid Copepods |
| title_full | Biomass Turnover Rates in Metabolically Active and Inactive Marine Calanoid Copepods |
| title_fullStr | Biomass Turnover Rates in Metabolically Active and Inactive Marine Calanoid Copepods |
| title_full_unstemmed | Biomass Turnover Rates in Metabolically Active and Inactive Marine Calanoid Copepods |
| title_short | Biomass Turnover Rates in Metabolically Active and Inactive Marine Calanoid Copepods |
| title_sort | biomass turnover rates in metabolically active and inactive marine calanoid copepods |
| topic | lipid turnover protein turnover basal metabolism diapause ecosystem model physiology |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.907290/full |
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