Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope
Diapausing populations of Calanus finmarchicus at depth in the Lofoten Basin (LB) return to the continental shelf and slope off the Lofoten-Vesterålen Islands during the phytoplankton spring bloom to feed and spawn, forming surface swarms with a great abundance. To study how overwintering population...
Published in: | Journal of Geophysical Research: Oceans |
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Online Access: | https://hdl.handle.net/10037/27644 https://doi.org/10.1029/2022JC018909 |
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ftunivtroemsoe:oai:munin.uit.no:10037/27644 2023-05-15T15:06:15+02:00 Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope Dong, Huizi Zhou, Meng Smith, Walker O. Li, Baosheng Hu, Ziyuan Basedow, Sünnje Linnéa Gaardsted, Frank Zhang, Zhaoru Zhong, Yisen 2022-09-06 https://hdl.handle.net/10037/27644 https://doi.org/10.1029/2022JC018909 eng eng Journal of Geophysical Research (JGR): Oceans Dong, Zhou, Smith, Li, Hu, Basedow, Gaardsted, Zhang, Zhong. Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope. Journal of Geophysical Research (JGR): Oceans. 2022;127(9) FRIDAID 2075748 doi:10.1029/2022JC018909 2169-9275 2169-9291 https://hdl.handle.net/10037/27644 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 CC-BY Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1029/2022JC018909 2022-12-08T00:02:36Z Diapausing populations of Calanus finmarchicus at depth in the Lofoten Basin (LB) return to the continental shelf and slope off the Lofoten-Vesterålen Islands during the phytoplankton spring bloom to feed and spawn, forming surface swarms with a great abundance. To study how overwintering populations of C. finmarchicus move with the deep currents and return to the shelf, Lagrangian transport characteristics of particles in deep water between 2008 and 2019 were analyzed using Global Ocean Reanalysis and Simulation re-analysis data and Lagrangian Coherent Structures (LCSs). Our analyses revealed that persistent eastward transport of diapausing C. finmarchicus between LB and continental slope occurred mainly between 600 and 1,100 m in the Arctic Intermediate Water. The consistency of the vertical distributions of C. finmarchicus abundance and salinity further suggests that physical factors control the horizontal distribution of the species. Hovmöller diagrams of kinetic energy indicate that there is an eastward advection of mean current at depth. The co-occurrence between the eastward transport of LCSs and the eastward advection of the mean current provides direct evidence that the life history of C. finmarchicus is subjected to physical control in the Norwegian Sea. Article in Journal/Newspaper Arctic Calanus finmarchicus Lofoten Norwegian Sea Phytoplankton Vesterålen University of Tromsø: Munin Open Research Archive Arctic Norwegian Sea Lofoten Vesterålen ENVELOPE(14.939,14.939,68.754,68.754) Lofoten Basin ENVELOPE(4.000,4.000,70.000,70.000) Journal of Geophysical Research: Oceans 127 9 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
Diapausing populations of Calanus finmarchicus at depth in the Lofoten Basin (LB) return to the continental shelf and slope off the Lofoten-Vesterålen Islands during the phytoplankton spring bloom to feed and spawn, forming surface swarms with a great abundance. To study how overwintering populations of C. finmarchicus move with the deep currents and return to the shelf, Lagrangian transport characteristics of particles in deep water between 2008 and 2019 were analyzed using Global Ocean Reanalysis and Simulation re-analysis data and Lagrangian Coherent Structures (LCSs). Our analyses revealed that persistent eastward transport of diapausing C. finmarchicus between LB and continental slope occurred mainly between 600 and 1,100 m in the Arctic Intermediate Water. The consistency of the vertical distributions of C. finmarchicus abundance and salinity further suggests that physical factors control the horizontal distribution of the species. Hovmöller diagrams of kinetic energy indicate that there is an eastward advection of mean current at depth. The co-occurrence between the eastward transport of LCSs and the eastward advection of the mean current provides direct evidence that the life history of C. finmarchicus is subjected to physical control in the Norwegian Sea. |
format |
Article in Journal/Newspaper |
author |
Dong, Huizi Zhou, Meng Smith, Walker O. Li, Baosheng Hu, Ziyuan Basedow, Sünnje Linnéa Gaardsted, Frank Zhang, Zhaoru Zhong, Yisen |
spellingShingle |
Dong, Huizi Zhou, Meng Smith, Walker O. Li, Baosheng Hu, Ziyuan Basedow, Sünnje Linnéa Gaardsted, Frank Zhang, Zhaoru Zhong, Yisen Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope |
author_facet |
Dong, Huizi Zhou, Meng Smith, Walker O. Li, Baosheng Hu, Ziyuan Basedow, Sünnje Linnéa Gaardsted, Frank Zhang, Zhaoru Zhong, Yisen |
author_sort |
Dong, Huizi |
title |
Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope |
title_short |
Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope |
title_full |
Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope |
title_fullStr |
Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope |
title_full_unstemmed |
Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope |
title_sort |
dynamical controls of the eastward transport of overwintering calanus finmarchicus from the lofoten basin to the continental slope |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/27644 https://doi.org/10.1029/2022JC018909 |
long_lat |
ENVELOPE(14.939,14.939,68.754,68.754) ENVELOPE(4.000,4.000,70.000,70.000) |
geographic |
Arctic Norwegian Sea Lofoten Vesterålen Lofoten Basin |
geographic_facet |
Arctic Norwegian Sea Lofoten Vesterålen Lofoten Basin |
genre |
Arctic Calanus finmarchicus Lofoten Norwegian Sea Phytoplankton Vesterålen |
genre_facet |
Arctic Calanus finmarchicus Lofoten Norwegian Sea Phytoplankton Vesterålen |
op_relation |
Journal of Geophysical Research (JGR): Oceans Dong, Zhou, Smith, Li, Hu, Basedow, Gaardsted, Zhang, Zhong. Dynamical Controls of the Eastward Transport of Overwintering Calanus finmarchicus From the Lofoten Basin to the Continental Slope. Journal of Geophysical Research (JGR): Oceans. 2022;127(9) FRIDAID 2075748 doi:10.1029/2022JC018909 2169-9275 2169-9291 https://hdl.handle.net/10037/27644 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2022JC018909 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
127 |
container_issue |
9 |
_version_ |
1766337901278265344 |