Carbon export by vertically migrating zooplankton:Optimal vertical migration and carbon export
Through diel vertical migration (DVM), zooplankton add an active transport to the otherwise passive sinking of detrital material that constitutes the biological pump. This active transport has proven difficult to quantify. We present a model that estimates both the temporal and depth characteristic...
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2016
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ftdtupubl:oai:pure.atira.dk:publications/c8e6391a-0924-4313-b5ff-ce8aae8c0ae2 2024-09-15T18:23:38+00:00 Carbon export by vertically migrating zooplankton:Optimal vertical migration and carbon export Hansen, Agnethe Nøhr Visser, André W. 2016 application/vnd.openxmlformats-officedocument.wordprocessingml.document https://orbit.dtu.dk/en/publications/c8e6391a-0924-4313-b5ff-ce8aae8c0ae2 https://doi.org/10.1002/lno.10249 https://backend.orbit.dtu.dk/ws/files/139681125/Postprint.docx eng eng https://orbit.dtu.dk/en/publications/c8e6391a-0924-4313-b5ff-ce8aae8c0ae2 info:eu-repo/semantics/openAccess Hansen , A N & Visser , A W 2016 , ' Carbon export by vertically migrating zooplankton : Optimal vertical migration and carbon export ' , Limnology and Oceanography , vol. 61 , no. 2 , pp. 701-710 . https://doi.org/10.1002/lno.10249 article 2016 ftdtupubl https://doi.org/10.1002/lno.10249 2024-07-15T23:49:10Z Through diel vertical migration (DVM), zooplankton add an active transport to the otherwise passive sinking of detrital material that constitutes the biological pump. This active transport has proven difficult to quantify. We present a model that estimates both the temporal and depth characteristic of optimal DVM behavior based on a trade-off between feeding opportunity and predation risk; factors that vary with latitude, time of year, and the size of the migrating animal. This behavioral component, coupled to a nutrient-phytoplankton-zooplankton (NPZ) productivity model provides estimates of the active transport of carbon by different size fractions of the migrating zooplankton population as function of time and space. The approach is motivated by the difficulty in incorporating behavioral aspects of carbon transport into large scale carbon budgets of the world's oceans. The results show that despite their lower abundance, large zooplankton (length circa 1–2 mm) migrate deeper and transport approximately twice as much carbon as do the smaller zooplankton (length circa 0.2–0.3 mm). In mid- latitudes (∼30°N to ∼45°N), where pronounced spring blooms are observed, up to 20% more carbon is transported than at either equatorial or boreal latitudes. We estimate that the amount of carbon transported below the mixed layer by migrating zooplankton in the North Atlantic Ocean constitutes 27% (16–30%) of the total export flux associated with the biological pump in that region Article in Journal/Newspaper North Atlantic Technical University of Denmark: DTU Orbit Limnology and Oceanography 61 2 701 710 |
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Open Polar |
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Technical University of Denmark: DTU Orbit |
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ftdtupubl |
language |
English |
description |
Through diel vertical migration (DVM), zooplankton add an active transport to the otherwise passive sinking of detrital material that constitutes the biological pump. This active transport has proven difficult to quantify. We present a model that estimates both the temporal and depth characteristic of optimal DVM behavior based on a trade-off between feeding opportunity and predation risk; factors that vary with latitude, time of year, and the size of the migrating animal. This behavioral component, coupled to a nutrient-phytoplankton-zooplankton (NPZ) productivity model provides estimates of the active transport of carbon by different size fractions of the migrating zooplankton population as function of time and space. The approach is motivated by the difficulty in incorporating behavioral aspects of carbon transport into large scale carbon budgets of the world's oceans. The results show that despite their lower abundance, large zooplankton (length circa 1–2 mm) migrate deeper and transport approximately twice as much carbon as do the smaller zooplankton (length circa 0.2–0.3 mm). In mid- latitudes (∼30°N to ∼45°N), where pronounced spring blooms are observed, up to 20% more carbon is transported than at either equatorial or boreal latitudes. We estimate that the amount of carbon transported below the mixed layer by migrating zooplankton in the North Atlantic Ocean constitutes 27% (16–30%) of the total export flux associated with the biological pump in that region |
format |
Article in Journal/Newspaper |
author |
Hansen, Agnethe Nøhr Visser, André W. |
spellingShingle |
Hansen, Agnethe Nøhr Visser, André W. Carbon export by vertically migrating zooplankton:Optimal vertical migration and carbon export |
author_facet |
Hansen, Agnethe Nøhr Visser, André W. |
author_sort |
Hansen, Agnethe Nøhr |
title |
Carbon export by vertically migrating zooplankton:Optimal vertical migration and carbon export |
title_short |
Carbon export by vertically migrating zooplankton:Optimal vertical migration and carbon export |
title_full |
Carbon export by vertically migrating zooplankton:Optimal vertical migration and carbon export |
title_fullStr |
Carbon export by vertically migrating zooplankton:Optimal vertical migration and carbon export |
title_full_unstemmed |
Carbon export by vertically migrating zooplankton:Optimal vertical migration and carbon export |
title_sort |
carbon export by vertically migrating zooplankton:optimal vertical migration and carbon export |
publishDate |
2016 |
url |
https://orbit.dtu.dk/en/publications/c8e6391a-0924-4313-b5ff-ce8aae8c0ae2 https://doi.org/10.1002/lno.10249 https://backend.orbit.dtu.dk/ws/files/139681125/Postprint.docx |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Hansen , A N & Visser , A W 2016 , ' Carbon export by vertically migrating zooplankton : Optimal vertical migration and carbon export ' , Limnology and Oceanography , vol. 61 , no. 2 , pp. 701-710 . https://doi.org/10.1002/lno.10249 |
op_relation |
https://orbit.dtu.dk/en/publications/c8e6391a-0924-4313-b5ff-ce8aae8c0ae2 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/lno.10249 |
container_title |
Limnology and Oceanography |
container_volume |
61 |
container_issue |
2 |
container_start_page |
701 |
op_container_end_page |
710 |
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1810463883850153984 |