Weddell seal summer diving behavior
We examined the influence of sea ice break-out on seasonal diving patterns and diet of a top predator, the Weddell seal, to understand how phytoplankton blooms impact the vertical distribution of the food web. We captured female seals during the November and December lactation period and attached a...
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U.S. Antarctic Program (USAP) Data Center
2018
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Online Access: | https://dx.doi.org/10.15784/601137 http://www.usap-dc.org/view/dataset/601137 |
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ftdatacite:10.15784/601137 2023-05-15T13:30:27+02:00 Weddell seal summer diving behavior Beltran, Roxanne Burns, Jennifer 2018 https://dx.doi.org/10.15784/601137 http://www.usap-dc.org/view/dataset/601137 en eng U.S. Antarctic Program (USAP) Data Center Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0] https://creativecommons.org/licenses/by-nc-sa/3.0/us CC-BY-NC-SA Seals Weddell seal Biology Antarctica Southern Ocean Biosphere Cryosphere dataset Dataset 2018 ftdatacite https://doi.org/10.15784/601137 2021-11-05T12:55:41Z We examined the influence of sea ice break-out on seasonal diving patterns and diet of a top predator, the Weddell seal, to understand how phytoplankton blooms impact the vertical distribution of the food web. We captured female seals during the November and December lactation period and attached a LOTEK LAT1800 time-depth recorder (TDR) flipper tag with a 6 second sampling interval. Data were processed using the Iknos toolbox in MATLAB. Benthic dives (1% of all dives) were excluded from analyses because we were interested in quantifying seasonal changes in mid-water dives. Thus, we analyzed dives from 59 Weddell seals to characterize the diving depth and foraging effort of each seal across the austral summer over four years. We characterized seasonal changes in diving depth by calculating the mean across all seals of the maximum dive depth on each day for each seal. For more information see: Beltran, R. S. Bridging the gap between pupping and molting phenology: behavioral and ecological drivers in Weddell seals PhD thesis, University of Alaska Fairbanks, (2018). Dataset Antarc* Antarctica Sea ice Southern Ocean Weddell Seal Weddell Seals Alaska DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean Austral Fairbanks Weddell |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Seals Weddell seal Biology Antarctica Southern Ocean Biosphere Cryosphere |
spellingShingle |
Seals Weddell seal Biology Antarctica Southern Ocean Biosphere Cryosphere Beltran, Roxanne Burns, Jennifer Weddell seal summer diving behavior |
topic_facet |
Seals Weddell seal Biology Antarctica Southern Ocean Biosphere Cryosphere |
description |
We examined the influence of sea ice break-out on seasonal diving patterns and diet of a top predator, the Weddell seal, to understand how phytoplankton blooms impact the vertical distribution of the food web. We captured female seals during the November and December lactation period and attached a LOTEK LAT1800 time-depth recorder (TDR) flipper tag with a 6 second sampling interval. Data were processed using the Iknos toolbox in MATLAB. Benthic dives (1% of all dives) were excluded from analyses because we were interested in quantifying seasonal changes in mid-water dives. Thus, we analyzed dives from 59 Weddell seals to characterize the diving depth and foraging effort of each seal across the austral summer over four years. We characterized seasonal changes in diving depth by calculating the mean across all seals of the maximum dive depth on each day for each seal. For more information see: Beltran, R. S. Bridging the gap between pupping and molting phenology: behavioral and ecological drivers in Weddell seals PhD thesis, University of Alaska Fairbanks, (2018). |
format |
Dataset |
author |
Beltran, Roxanne Burns, Jennifer |
author_facet |
Beltran, Roxanne Burns, Jennifer |
author_sort |
Beltran, Roxanne |
title |
Weddell seal summer diving behavior |
title_short |
Weddell seal summer diving behavior |
title_full |
Weddell seal summer diving behavior |
title_fullStr |
Weddell seal summer diving behavior |
title_full_unstemmed |
Weddell seal summer diving behavior |
title_sort |
weddell seal summer diving behavior |
publisher |
U.S. Antarctic Program (USAP) Data Center |
publishDate |
2018 |
url |
https://dx.doi.org/10.15784/601137 http://www.usap-dc.org/view/dataset/601137 |
geographic |
Southern Ocean Austral Fairbanks Weddell |
geographic_facet |
Southern Ocean Austral Fairbanks Weddell |
genre |
Antarc* Antarctica Sea ice Southern Ocean Weddell Seal Weddell Seals Alaska |
genre_facet |
Antarc* Antarctica Sea ice Southern Ocean Weddell Seal Weddell Seals Alaska |
op_rights |
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0] https://creativecommons.org/licenses/by-nc-sa/3.0/us |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/10.15784/601137 |
_version_ |
1766008522248552448 |