Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012
International audience This paper provides a synthesis of available in situ primary production (PP) measurements from the Pacific Arctic Region (PAR), collected between 1950 and 2012. Seasonal integrated primary production (IPP) across the PAR was calculated from 524 profiles, 340 of which were also...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Online Access: | https://hal.science/hal-03502942 https://doi.org/10.1016/j.dsr2.2016.12.015 |
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ftsorbonneuniv:oai:HAL:hal-03502942v1 2024-05-12T07:59:26+00:00 Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012 Hill, Victoria Ardyna, Mathieu Lee, Sang H. Varela, Diana E. Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2018 https://hal.science/hal-03502942 https://doi.org/10.1016/j.dsr2.2016.12.015 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2016.12.015 hal-03502942 https://hal.science/hal-03502942 doi:10.1016/j.dsr2.2016.12.015 ISSN: 0967-0645 Deep Sea Research Part II: Topical Studies in Oceanography https://hal.science/hal-03502942 Deep Sea Research Part II: Topical Studies in Oceanography, 2018, 152 (SI), pp.82-94. ⟨10.1016/j.dsr2.2016.12.015⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2018 ftsorbonneuniv https://doi.org/10.1016/j.dsr2.2016.12.015 2024-04-18T03:33:55Z International audience This paper provides a synthesis of available in situ primary production (PP) measurements from the Pacific Arctic Region (PAR), collected between 1950 and 2012. Seasonal integrated primary production (IPP) across the PAR was calculated from 524 profiles, 340 of which were also analyzed to determine the average vertical distribution of PP rates for spring, summer and fall months. The Chirikov Basin and Chukchi Shelf were the most productive areas, with the East Siberian Sea, Chukchi Plateau and Canada Basin the lowest. Decadal-scale changes were indicated in the southern Chukchi Sea, and across Hanna Shoal. In the southern Chukchi Sea in August, IPP increased significantly from 113 +/- 35 mg C m(-2) d(-1) in 1959 and 1960 to 833 +/- 307 mg C m(-2) d(-1) in the 2000 s. Increases in the magnitude of IPP were accompanied by variations in the vertical distribution, the subsurface peak observed in the 1959/60 was not present in the 2000 s. The mechanism behind this change was undetermined but could have included changes in stratification, mixing or surface distribution of water masses as well as methodological differences. Over Hanna Shoal, the phytoplankton surface bloom now occurs earlier by several weeks compared to 1993, linked to increases in light due to earlier sea- ice retreat. In 1993 with sea ice still present in the region the surface bloom occurred in August, in 2002 and 2004 this same period was characterized by open water and low surface PP and strong subsurface production. This dataset provides a region-wide quantification of IPP and decadal trends and highlights the need for a cooperative monitoring program to observe the long-term impacts of climate change in the Arctic ecosystem. Article in Journal/Newspaper Arctic canada basin Chukchi Chukchi Sea Climate change East Siberian Sea Pacific Arctic Phytoplankton Sea ice HAL Sorbonne Université Arctic Chukchi Sea Canada Pacific East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Chukchi Shelf ENVELOPE(-169.167,-169.167,70.550,70.550) Hanna Shoal ENVELOPE(-162.000,-162.000,72.000,72.000) Deep Sea Research Part II: Topical Studies in Oceanography 152 82 94 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Hill, Victoria Ardyna, Mathieu Lee, Sang H. Varela, Diana E. Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012 |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience This paper provides a synthesis of available in situ primary production (PP) measurements from the Pacific Arctic Region (PAR), collected between 1950 and 2012. Seasonal integrated primary production (IPP) across the PAR was calculated from 524 profiles, 340 of which were also analyzed to determine the average vertical distribution of PP rates for spring, summer and fall months. The Chirikov Basin and Chukchi Shelf were the most productive areas, with the East Siberian Sea, Chukchi Plateau and Canada Basin the lowest. Decadal-scale changes were indicated in the southern Chukchi Sea, and across Hanna Shoal. In the southern Chukchi Sea in August, IPP increased significantly from 113 +/- 35 mg C m(-2) d(-1) in 1959 and 1960 to 833 +/- 307 mg C m(-2) d(-1) in the 2000 s. Increases in the magnitude of IPP were accompanied by variations in the vertical distribution, the subsurface peak observed in the 1959/60 was not present in the 2000 s. The mechanism behind this change was undetermined but could have included changes in stratification, mixing or surface distribution of water masses as well as methodological differences. Over Hanna Shoal, the phytoplankton surface bloom now occurs earlier by several weeks compared to 1993, linked to increases in light due to earlier sea- ice retreat. In 1993 with sea ice still present in the region the surface bloom occurred in August, in 2002 and 2004 this same period was characterized by open water and low surface PP and strong subsurface production. This dataset provides a region-wide quantification of IPP and decadal trends and highlights the need for a cooperative monitoring program to observe the long-term impacts of climate change in the Arctic ecosystem. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Hill, Victoria Ardyna, Mathieu Lee, Sang H. Varela, Diana E. |
author_facet |
Hill, Victoria Ardyna, Mathieu Lee, Sang H. Varela, Diana E. |
author_sort |
Hill, Victoria |
title |
Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012 |
title_short |
Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012 |
title_full |
Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012 |
title_fullStr |
Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012 |
title_full_unstemmed |
Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012 |
title_sort |
decadal trends in phytoplankton production in the pacific arctic region from 1950 to 2012 |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-03502942 https://doi.org/10.1016/j.dsr2.2016.12.015 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) ENVELOPE(-169.167,-169.167,70.550,70.550) ENVELOPE(-162.000,-162.000,72.000,72.000) |
geographic |
Arctic Chukchi Sea Canada Pacific East Siberian Sea Chukchi Shelf Hanna Shoal |
geographic_facet |
Arctic Chukchi Sea Canada Pacific East Siberian Sea Chukchi Shelf Hanna Shoal |
genre |
Arctic canada basin Chukchi Chukchi Sea Climate change East Siberian Sea Pacific Arctic Phytoplankton Sea ice |
genre_facet |
Arctic canada basin Chukchi Chukchi Sea Climate change East Siberian Sea Pacific Arctic Phytoplankton Sea ice |
op_source |
ISSN: 0967-0645 Deep Sea Research Part II: Topical Studies in Oceanography https://hal.science/hal-03502942 Deep Sea Research Part II: Topical Studies in Oceanography, 2018, 152 (SI), pp.82-94. ⟨10.1016/j.dsr2.2016.12.015⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2016.12.015 hal-03502942 https://hal.science/hal-03502942 doi:10.1016/j.dsr2.2016.12.015 |
op_doi |
https://doi.org/10.1016/j.dsr2.2016.12.015 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
152 |
container_start_page |
82 |
op_container_end_page |
94 |
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