Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord
Abstract Zooplankton consumption of sinking aggregates affects the quality and quantity of organic carbon exported to the deep ocean. Increasing laboratory evidence shows that small particle‐associated copepods impact the flux attenuation by feeding on sinking particles, but this has not been quanti...
Published in: | Limnology and Oceanography |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | http://dx.doi.org/10.1002/lno.12641 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.12641 |
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crwiley:10.1002/lno.12641 2024-10-13T14:05:31+00:00 Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord Svensen, Camilla Iversen, Morten Norrbin, Fredrika Möller, Klas Ove Wiedmann, Ingrid Skarðhamar, Jofrid Barth‐Jensen, Coralie Kwasniewski, Slawomir Ormanczyk, Mateusz Dąbrowska, Anna Maria Koski, Marja 2024 http://dx.doi.org/10.1002/lno.12641 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.12641 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Limnology and Oceanography volume 69, issue 9, page 2029-2042 ISSN 0024-3590 1939-5590 journal-article 2024 crwiley https://doi.org/10.1002/lno.12641 2024-09-19T04:19:26Z Abstract Zooplankton consumption of sinking aggregates affects the quality and quantity of organic carbon exported to the deep ocean. Increasing laboratory evidence shows that small particle‐associated copepods impact the flux attenuation by feeding on sinking particles, but this has not been quantified in situ. We investigated the impact of an abundant particle‐colonizing copepod, Microsetella norvegica , on the attenuation of the vertical carbon flux in a sub‐Arctic fjord. This study combines field measurements of vertical carbon flux, abundance, and size‐distribution of marine snow and degradation rates of fecal pellets and algal aggregates. Female M. norvegica altered their feeding behavior when exposed to aggregates, and ingestion rates were 0.20 μ g C ind. −1 d −1 on marine snow and 0.11 μ g C ind. −1 d −1 on intact krill fecal pellets, corresponding to 48% and 26% of the females' body carbon mass. Due to high sea surface abundance of up to ~ 50 ind. L −1 , the population of M. norvegica had the potential to account for almost all the carbon removal in the upper 50 m of the water column, depending on the type of the aggregate. Our observations highlight the potential importance of abundant small‐sized copepods for biogeochemical cycles through their impact on export flux and its attenuation in the twilight zone. Article in Journal/Newspaper Arctic Zooplankton Copepods Wiley Online Library Arctic Limnology and Oceanography |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Zooplankton consumption of sinking aggregates affects the quality and quantity of organic carbon exported to the deep ocean. Increasing laboratory evidence shows that small particle‐associated copepods impact the flux attenuation by feeding on sinking particles, but this has not been quantified in situ. We investigated the impact of an abundant particle‐colonizing copepod, Microsetella norvegica , on the attenuation of the vertical carbon flux in a sub‐Arctic fjord. This study combines field measurements of vertical carbon flux, abundance, and size‐distribution of marine snow and degradation rates of fecal pellets and algal aggregates. Female M. norvegica altered their feeding behavior when exposed to aggregates, and ingestion rates were 0.20 μ g C ind. −1 d −1 on marine snow and 0.11 μ g C ind. −1 d −1 on intact krill fecal pellets, corresponding to 48% and 26% of the females' body carbon mass. Due to high sea surface abundance of up to ~ 50 ind. L −1 , the population of M. norvegica had the potential to account for almost all the carbon removal in the upper 50 m of the water column, depending on the type of the aggregate. Our observations highlight the potential importance of abundant small‐sized copepods for biogeochemical cycles through their impact on export flux and its attenuation in the twilight zone. |
format |
Article in Journal/Newspaper |
author |
Svensen, Camilla Iversen, Morten Norrbin, Fredrika Möller, Klas Ove Wiedmann, Ingrid Skarðhamar, Jofrid Barth‐Jensen, Coralie Kwasniewski, Slawomir Ormanczyk, Mateusz Dąbrowska, Anna Maria Koski, Marja |
spellingShingle |
Svensen, Camilla Iversen, Morten Norrbin, Fredrika Möller, Klas Ove Wiedmann, Ingrid Skarðhamar, Jofrid Barth‐Jensen, Coralie Kwasniewski, Slawomir Ormanczyk, Mateusz Dąbrowska, Anna Maria Koski, Marja Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord |
author_facet |
Svensen, Camilla Iversen, Morten Norrbin, Fredrika Möller, Klas Ove Wiedmann, Ingrid Skarðhamar, Jofrid Barth‐Jensen, Coralie Kwasniewski, Slawomir Ormanczyk, Mateusz Dąbrowska, Anna Maria Koski, Marja |
author_sort |
Svensen, Camilla |
title |
Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord |
title_short |
Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord |
title_full |
Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord |
title_fullStr |
Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord |
title_full_unstemmed |
Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord |
title_sort |
impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1002/lno.12641 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.12641 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Zooplankton Copepods |
genre_facet |
Arctic Zooplankton Copepods |
op_source |
Limnology and Oceanography volume 69, issue 9, page 2029-2042 ISSN 0024-3590 1939-5590 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1002/lno.12641 |
container_title |
Limnology and Oceanography |
_version_ |
1812811613684629504 |