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...
| Main Authors: | , |
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| Format: | Dataset |
| Language: | English |
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Environmental Data Initiative
2020
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| Online Access: | https://dx.doi.org/10.6073/pasta/c6374c28a1352cf31cb947ef1bcb8366 https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-pal.307.2 |
| Summary: | 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 ... |
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