Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean
The marine ecosystem of the West Antarctic Peninsula (WAP) extends from the Bellingshausen Sea to the northern tip of the peninsula and from the mostly glaciated coast across the continental shelf to the shelf break in the west. The glacially sculpted coastline along the peninsula is highly convolut...
Published in: | Philosophical Transactions of the Royal Society B: Biological Sciences |
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ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-2020 2023-06-11T04:03:58+02:00 Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean Church, Matthew Ducklow, Hugh Letelier, RM Karl, David 2007-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/1020 doi: 10.1098/rstb.2006.1955 https://scholarworks.wm.edu/context/vimsarticles/article/2020/viewcontent/a045p041.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/1020 doi: 10.1098/rstb.2006.1955 https://scholarworks.wm.edu/context/vimsarticles/article/2020/viewcontent/a045p041.pdf VIMS Articles Krill Euphausia-Superba Sea-Ice Extent Southern-Ocean Climate Austral Spring Bloom Crab-Eater Seals Ross Sea Bransfield Strait Continental-Shelf Scotia Sea Phytoplankton Assemblages Biological Sciences Peer-Reviewed Articles Aquaculture and Fisheries text 2007 ftwilliammarycol https://doi.org/10.1098/rstb.2006.1955 2023-05-04T17:57:23Z The marine ecosystem of the West Antarctic Peninsula (WAP) extends from the Bellingshausen Sea to the northern tip of the peninsula and from the mostly glaciated coast across the continental shelf to the shelf break in the west. The glacially sculpted coastline along the peninsula is highly convoluted and characterized by deep embayments that are often interconnected by channels that facilitate transport of heat and nutrients into the shelf domain. The ecosystem is divided into three subregions, the continental slope, shelf and coastal regions, each with unique ocean dynamics, water mass and biological distributions. The WAP shelf lies within the Antarctic Sea Ice Zone (SIZ) and like other SIZs, the WAP system is very productive, supporting large stocks of marine mammals, birds and the Antarctic krill, Euphausia superba. Ecosystem dynamics is dominated by the seasonal and interannual variation in sea ice extent and retreat. The Antarctic Peninsula is one among the most rapidly warming regions on Earth, having experienced a 2 degrees C increase in the annual mean temperature and a 6 degrees C rise in the mean winter temperature since 1950. Delivery of heat from the Antarctic Circumpolar Current has increased significantly in the past decade, sufficient to drive to a 0.6 degrees C warming of the upper 300 m of shelf water. In the past 50 years and continuing in the twenty-first century, the warm, moist maritime climate of the northern WAP has been migrating south, displacing the once dominant cold, dry continental Antarctic climate and causing multi-level responses in the marine ecosystem. Ecosystem responses to the regional warming include increased heat transport, decreased sea ice extent and duration, local declines in ice-dependent Adelie penguins, increase in ice-tolerant gentoo and chinstrap penguins, alterations in phytoplankton and zooplankton community composition and changes in krill recruitment, abundance and availability to predators. The climate/ecological gradients extending along the WAP and the ... Text Antarc* Antarctic Antarctic Krill Antarctic Peninsula Bellingshausen Sea Bransfield Strait Euphausia superba Ross Sea Scotia Sea Sea ice Southern Ocean W&M ScholarWorks Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral Ross Sea Scotia Sea Bellingshausen Sea Bransfield Strait Pacific Philosophical Transactions of the Royal Society B: Biological Sciences 362 1477 67 94 |
institution |
Open Polar |
collection |
W&M ScholarWorks |
op_collection_id |
ftwilliammarycol |
language |
unknown |
topic |
Krill Euphausia-Superba Sea-Ice Extent Southern-Ocean Climate Austral Spring Bloom Crab-Eater Seals Ross Sea Bransfield Strait Continental-Shelf Scotia Sea Phytoplankton Assemblages Biological Sciences Peer-Reviewed Articles Aquaculture and Fisheries |
spellingShingle |
Krill Euphausia-Superba Sea-Ice Extent Southern-Ocean Climate Austral Spring Bloom Crab-Eater Seals Ross Sea Bransfield Strait Continental-Shelf Scotia Sea Phytoplankton Assemblages Biological Sciences Peer-Reviewed Articles Aquaculture and Fisheries Church, Matthew Ducklow, Hugh Letelier, RM Karl, David Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean |
topic_facet |
Krill Euphausia-Superba Sea-Ice Extent Southern-Ocean Climate Austral Spring Bloom Crab-Eater Seals Ross Sea Bransfield Strait Continental-Shelf Scotia Sea Phytoplankton Assemblages Biological Sciences Peer-Reviewed Articles Aquaculture and Fisheries |
description |
The marine ecosystem of the West Antarctic Peninsula (WAP) extends from the Bellingshausen Sea to the northern tip of the peninsula and from the mostly glaciated coast across the continental shelf to the shelf break in the west. The glacially sculpted coastline along the peninsula is highly convoluted and characterized by deep embayments that are often interconnected by channels that facilitate transport of heat and nutrients into the shelf domain. The ecosystem is divided into three subregions, the continental slope, shelf and coastal regions, each with unique ocean dynamics, water mass and biological distributions. The WAP shelf lies within the Antarctic Sea Ice Zone (SIZ) and like other SIZs, the WAP system is very productive, supporting large stocks of marine mammals, birds and the Antarctic krill, Euphausia superba. Ecosystem dynamics is dominated by the seasonal and interannual variation in sea ice extent and retreat. The Antarctic Peninsula is one among the most rapidly warming regions on Earth, having experienced a 2 degrees C increase in the annual mean temperature and a 6 degrees C rise in the mean winter temperature since 1950. Delivery of heat from the Antarctic Circumpolar Current has increased significantly in the past decade, sufficient to drive to a 0.6 degrees C warming of the upper 300 m of shelf water. In the past 50 years and continuing in the twenty-first century, the warm, moist maritime climate of the northern WAP has been migrating south, displacing the once dominant cold, dry continental Antarctic climate and causing multi-level responses in the marine ecosystem. Ecosystem responses to the regional warming include increased heat transport, decreased sea ice extent and duration, local declines in ice-dependent Adelie penguins, increase in ice-tolerant gentoo and chinstrap penguins, alterations in phytoplankton and zooplankton community composition and changes in krill recruitment, abundance and availability to predators. The climate/ecological gradients extending along the WAP and the ... |
format |
Text |
author |
Church, Matthew Ducklow, Hugh Letelier, RM Karl, David |
author_facet |
Church, Matthew Ducklow, Hugh Letelier, RM Karl, David |
author_sort |
Church, Matthew |
title |
Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean |
title_short |
Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean |
title_full |
Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean |
title_fullStr |
Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean |
title_full_unstemmed |
Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean |
title_sort |
temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical north pacific ocean |
publisher |
W&M ScholarWorks |
publishDate |
2007 |
url |
https://scholarworks.wm.edu/vimsarticles/1020 https://scholarworks.wm.edu/context/vimsarticles/article/2020/viewcontent/a045p041.pdf |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral Ross Sea Scotia Sea Bellingshausen Sea Bransfield Strait Pacific |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral Ross Sea Scotia Sea Bellingshausen Sea Bransfield Strait Pacific |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Bellingshausen Sea Bransfield Strait Euphausia superba Ross Sea Scotia Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Bellingshausen Sea Bransfield Strait Euphausia superba Ross Sea Scotia Sea Sea ice Southern Ocean |
op_source |
VIMS Articles |
op_relation |
https://scholarworks.wm.edu/vimsarticles/1020 doi: 10.1098/rstb.2006.1955 https://scholarworks.wm.edu/context/vimsarticles/article/2020/viewcontent/a045p041.pdf |
op_doi |
https://doi.org/10.1098/rstb.2006.1955 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
362 |
container_issue |
1477 |
container_start_page |
67 |
op_container_end_page |
94 |
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1768384759923212288 |