Pan-Arctic diel vertical migration during the polar night
Diel vertical migration (DVM) has generally been assumed to cease during the polar night in the high Arctic, although recent studies have shown the occurrence of lunar vertical migrations (LVMs) and shallow DVMs. Here, we quantified when and where full-depth (>20 m), solar-mediated DVM exists on...
Published in: | Marine Ecology Progress Series |
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Language: | English |
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2018
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Online Access: | https://pure.uhi.ac.uk/en/publications/4663659d-1093-49ca-8b05-54e15a77c3f6 https://doi.org/10.3354/meps12753 https://pureadmin.uhi.ac.uk/ws/files/3360458/AAM_Pan_Arctic_diel_vertical_migration_during_the_polar_night_Hobbs.pdf |
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ftuhipublicatio:oai:pure.atira.dk:publications/4663659d-1093-49ca-8b05-54e15a77c3f6 2024-01-28T10:02:03+01:00 Pan-Arctic diel vertical migration during the polar night Hobbs, Laura Cottier, Finlo Last, Kim Berge, Jorgen 2018-10-26 application/pdf https://pure.uhi.ac.uk/en/publications/4663659d-1093-49ca-8b05-54e15a77c3f6 https://doi.org/10.3354/meps12753 https://pureadmin.uhi.ac.uk/ws/files/3360458/AAM_Pan_Arctic_diel_vertical_migration_during_the_polar_night_Hobbs.pdf eng eng info:eu-repo/semantics/openAccess Hobbs , L , Cottier , F , Last , K & Berge , J 2018 , ' Pan-Arctic diel vertical migration during the polar night ' , Marine Ecology-Progress Series , vol. 605 , pp. 61-72 . https://doi.org/10.3354/meps12753 Arctic Diel vertical migration Polar night article 2018 ftuhipublicatio https://doi.org/10.3354/meps12753 2024-01-04T23:21:10Z Diel vertical migration (DVM) has generally been assumed to cease during the polar night in the high Arctic, although recent studies have shown the occurrence of lunar vertical migrations (LVMs) and shallow DVMs. Here, we quantified when and where full-depth (>20 m), solar-mediated DVM exists on a pan-Arctic scale. We observed the scattering population, most likely to be comprised of zooplankton, using 300 kHz acoustic Doppler current profilers (ADCPs). We quantified the presence/absence of DVM, and found that DVM continues throughout the year to at least 20 m at all locations south of 74° N. North of 77° N, DVM ceases for a period of time dur- ing the polar night. The dates of this cessation accurately align with the date of the winter solstice (± 2 d). Between 74 and 77° N, DVM presence/absence is variable. Acoustic data sampled at 89° N, however, showed no evidence of DVM at any time during the year — a new observation. Using indicators of presence/absence of sea ice from ADCPs and satellite-derived sea ice concentration data, we revealed that local variations in sea ice cover directly determine the continuation or ces- sation of DVM during the polar night. Earlier-forming and higher-concentration sea ice causes a cessation in DVM, whereas low-concentration or late-forming sea ice results in continuous DVM compared to similar latitudes. Article in Journal/Newspaper Arctic Arctic polar night Sea ice Zooplankton University of the Highlands and Islands: Research Database of UHI Arctic Marine Ecology Progress Series 605 61 72 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
Arctic Diel vertical migration Polar night |
spellingShingle |
Arctic Diel vertical migration Polar night Hobbs, Laura Cottier, Finlo Last, Kim Berge, Jorgen Pan-Arctic diel vertical migration during the polar night |
topic_facet |
Arctic Diel vertical migration Polar night |
description |
Diel vertical migration (DVM) has generally been assumed to cease during the polar night in the high Arctic, although recent studies have shown the occurrence of lunar vertical migrations (LVMs) and shallow DVMs. Here, we quantified when and where full-depth (>20 m), solar-mediated DVM exists on a pan-Arctic scale. We observed the scattering population, most likely to be comprised of zooplankton, using 300 kHz acoustic Doppler current profilers (ADCPs). We quantified the presence/absence of DVM, and found that DVM continues throughout the year to at least 20 m at all locations south of 74° N. North of 77° N, DVM ceases for a period of time dur- ing the polar night. The dates of this cessation accurately align with the date of the winter solstice (± 2 d). Between 74 and 77° N, DVM presence/absence is variable. Acoustic data sampled at 89° N, however, showed no evidence of DVM at any time during the year — a new observation. Using indicators of presence/absence of sea ice from ADCPs and satellite-derived sea ice concentration data, we revealed that local variations in sea ice cover directly determine the continuation or ces- sation of DVM during the polar night. Earlier-forming and higher-concentration sea ice causes a cessation in DVM, whereas low-concentration or late-forming sea ice results in continuous DVM compared to similar latitudes. |
format |
Article in Journal/Newspaper |
author |
Hobbs, Laura Cottier, Finlo Last, Kim Berge, Jorgen |
author_facet |
Hobbs, Laura Cottier, Finlo Last, Kim Berge, Jorgen |
author_sort |
Hobbs, Laura |
title |
Pan-Arctic diel vertical migration during the polar night |
title_short |
Pan-Arctic diel vertical migration during the polar night |
title_full |
Pan-Arctic diel vertical migration during the polar night |
title_fullStr |
Pan-Arctic diel vertical migration during the polar night |
title_full_unstemmed |
Pan-Arctic diel vertical migration during the polar night |
title_sort |
pan-arctic diel vertical migration during the polar night |
publishDate |
2018 |
url |
https://pure.uhi.ac.uk/en/publications/4663659d-1093-49ca-8b05-54e15a77c3f6 https://doi.org/10.3354/meps12753 https://pureadmin.uhi.ac.uk/ws/files/3360458/AAM_Pan_Arctic_diel_vertical_migration_during_the_polar_night_Hobbs.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic polar night Sea ice Zooplankton |
genre_facet |
Arctic Arctic polar night Sea ice Zooplankton |
op_source |
Hobbs , L , Cottier , F , Last , K & Berge , J 2018 , ' Pan-Arctic diel vertical migration during the polar night ' , Marine Ecology-Progress Series , vol. 605 , pp. 61-72 . https://doi.org/10.3354/meps12753 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps12753 |
container_title |
Marine Ecology Progress Series |
container_volume |
605 |
container_start_page |
61 |
op_container_end_page |
72 |
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1789327592430501888 |