Shell lengths of pteropod, Limacina helicina antarctica, collected from the PAL LTER sediment trap along the Western Antarctic Peninsula, 2004 - 2018, and from net tows 2017-2018.
Pteropod, Limacina helicina antarctica, is an abundant zooplankton along the Western Antarctic Peninsula (WAP) and prey for higher trophic organisms. Changes in the pteropod (pelagic snail) phenology (life history) have important implications for regional food web dynamics. Pteropod shell lengths we...
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Environmental Data Initiative
2020
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Online Access: | https://dx.doi.org/10.6073/pasta/e5b4f932fc16efbe42e19e6a5cf7eb67 https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-pal.307.3 |
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ftdatacite:10.6073/pasta/e5b4f932fc16efbe42e19e6a5cf7eb67 2023-05-15T13:50:22+02:00 Shell lengths of pteropod, Limacina helicina antarctica, collected from the PAL LTER sediment trap along the Western Antarctic Peninsula, 2004 - 2018, and from net tows 2017-2018. LTER, Palmer Station Antarctica Thibodeau, Patricia 2020 https://dx.doi.org/10.6073/pasta/e5b4f932fc16efbe42e19e6a5cf7eb67 https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-pal.307.3 en eng Environmental Data Initiative dataset Dataset dataPackage 2020 ftdatacite https://doi.org/10.6073/pasta/e5b4f932fc16efbe42e19e6a5cf7eb67 2021-11-05T12:55:41Z Pteropod, Limacina helicina antarctica, is an abundant zooplankton along the Western Antarctic Peninsula (WAP) and prey for higher trophic organisms. Changes in the pteropod (pelagic snail) phenology (life history) have important implications for regional food web dynamics. Pteropod shell lengths were collected from the PAL LTER sediment trap located along the northern continental shelf of the PAL LTER sampling grid, 2004-2018. PAL LTER has deployed a time-series trap near 64.5° S, 66.0° W since late 1992. The trap is moored in 300 m depth and collects sinking particles at 170 m. Pteropod samples are stored in 21 sample collection bottles on the sediment trap that were prepared with a Milli-Q deionized water rinse and filled with 7.5 g NaCl l-1 solution and 2% borate-buffered formalin in filtered seawater (34 ppt), with a final salinity concentration of 41 ppt. L. h. antarctica shell lengths also collected during the PAL LTER 2018 January offshore cruise and for four months at Palmer Station, Anvers Island (November 2017 to February 2018). L. h. antarctica and all other macrozooplankton collection on the PAL LTER cruise are performed with a 2 m square frame Metro net (700 µm mesh), towed obliquely to a depth of 120 m. At Palmer Station, pteropods are collected with a 1 m x 1 m square frame Metro net (700 µm mesh) and a 1 m diameter ring net (200 or 500 µm mesh), towed obliquely to a depth of ~50 m. Shell lengths are determined by measuring from the opening of the shell aperture directly across the diameter of the shell. The shell lengths analyzed within the WAP region are used to determine phenology patterns in pteropod population dynamics and changes thereof over time. Dataset Antarc* Antarctic Antarctic Peninsula Antarctica Anvers Island Limacina helicina DataCite Metadata Store (German National Library of Science and Technology) Antarctic Antarctic Peninsula Palmer Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) Palmer-Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) Anvers ENVELOPE(-63.500,-63.500,-64.600,-64.600) Anvers Island ENVELOPE(-63.500,-63.500,-64.600,-64.600) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
Pteropod, Limacina helicina antarctica, is an abundant zooplankton along the Western Antarctic Peninsula (WAP) and prey for higher trophic organisms. Changes in the pteropod (pelagic snail) phenology (life history) have important implications for regional food web dynamics. Pteropod shell lengths were collected from the PAL LTER sediment trap located along the northern continental shelf of the PAL LTER sampling grid, 2004-2018. PAL LTER has deployed a time-series trap near 64.5° S, 66.0° W since late 1992. The trap is moored in 300 m depth and collects sinking particles at 170 m. Pteropod samples are stored in 21 sample collection bottles on the sediment trap that were prepared with a Milli-Q deionized water rinse and filled with 7.5 g NaCl l-1 solution and 2% borate-buffered formalin in filtered seawater (34 ppt), with a final salinity concentration of 41 ppt. L. h. antarctica shell lengths also collected during the PAL LTER 2018 January offshore cruise and for four months at Palmer Station, Anvers Island (November 2017 to February 2018). L. h. antarctica and all other macrozooplankton collection on the PAL LTER cruise are performed with a 2 m square frame Metro net (700 µm mesh), towed obliquely to a depth of 120 m. At Palmer Station, pteropods are collected with a 1 m x 1 m square frame Metro net (700 µm mesh) and a 1 m diameter ring net (200 or 500 µm mesh), towed obliquely to a depth of ~50 m. Shell lengths are determined by measuring from the opening of the shell aperture directly across the diameter of the shell. The shell lengths analyzed within the WAP region are used to determine phenology patterns in pteropod population dynamics and changes thereof over time. |
format |
Dataset |
author |
LTER, Palmer Station Antarctica Thibodeau, Patricia |
spellingShingle |
LTER, Palmer Station Antarctica Thibodeau, Patricia Shell lengths of pteropod, Limacina helicina antarctica, collected from the PAL LTER sediment trap along the Western Antarctic Peninsula, 2004 - 2018, and from net tows 2017-2018. |
author_facet |
LTER, Palmer Station Antarctica Thibodeau, Patricia |
author_sort |
LTER, Palmer Station Antarctica |
title |
Shell lengths of pteropod, Limacina helicina antarctica, collected from the PAL LTER sediment trap along the Western Antarctic Peninsula, 2004 - 2018, and from net tows 2017-2018. |
title_short |
Shell lengths of pteropod, Limacina helicina antarctica, collected from the PAL LTER sediment trap along the Western Antarctic Peninsula, 2004 - 2018, and from net tows 2017-2018. |
title_full |
Shell lengths of pteropod, Limacina helicina antarctica, collected from the PAL LTER sediment trap along the Western Antarctic Peninsula, 2004 - 2018, and from net tows 2017-2018. |
title_fullStr |
Shell lengths of pteropod, Limacina helicina antarctica, collected from the PAL LTER sediment trap along the Western Antarctic Peninsula, 2004 - 2018, and from net tows 2017-2018. |
title_full_unstemmed |
Shell lengths of pteropod, Limacina helicina antarctica, collected from the PAL LTER sediment trap along the Western Antarctic Peninsula, 2004 - 2018, and from net tows 2017-2018. |
title_sort |
shell lengths of pteropod, limacina helicina antarctica, collected from the pal lter sediment trap along the western antarctic peninsula, 2004 - 2018, and from net tows 2017-2018. |
publisher |
Environmental Data Initiative |
publishDate |
2020 |
url |
https://dx.doi.org/10.6073/pasta/e5b4f932fc16efbe42e19e6a5cf7eb67 https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-pal.307.3 |
long_lat |
ENVELOPE(-64.050,-64.050,-64.770,-64.770) ENVELOPE(-64.050,-64.050,-64.770,-64.770) ENVELOPE(-63.500,-63.500,-64.600,-64.600) ENVELOPE(-63.500,-63.500,-64.600,-64.600) |
geographic |
Antarctic Antarctic Peninsula Palmer Station Palmer-Station Anvers Anvers Island |
geographic_facet |
Antarctic Antarctic Peninsula Palmer Station Palmer-Station Anvers Anvers Island |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Anvers Island Limacina helicina |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Anvers Island Limacina helicina |
op_doi |
https://doi.org/10.6073/pasta/e5b4f932fc16efbe42e19e6a5cf7eb67 |
_version_ |
1766253431292428288 |