USAP-DC

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These fine scale observations were only possible during one field season because of restrictions due to the COVID-19 pandemic (2020-21 ), pier construction at Palmer Station (2021-22) and subsequent heat-loop project (2023-24). To provide context to these detailed observations and in a separate effort, our team is analyzed echosounder data collected over a number of years (2018-2024) from a surface RHIB as part of the Palmer Long-Term Ecological Research program. These data were collected by the LTER team within habitat zones used by foraging penguins during the breeding season designed to elucidate linkages between the predators and prey. The LTER has lacked dedicated personnel with the expertise to analyze and interpret these particular results over the full time-series, so this analysis was conducted as part of this project in lieu of the single field season at Palmer Station for reasons stated above.", "citation": "Moline, M. (2026) \"Ancillary Instrument measures via AUV - Palmer Summer 2022-2023 B-308-P\" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/None.", "datePublished": "2026-05-08", "keywords": ["Antarctica", "AUV", "Cryosphere", "CTD", "Fluorescence", "Irradiance ", "Oceans", "Palmer Station", "Salinity", "Temperature", "Turbidity"], "creator": [{"@type": "Person", "additionalType": "geolink:Person", "name": "Moline, Mark", "email": "mmoline@udel.edu", "affiliation": {"@type": "Organization", "name": "University of Delaware"}}], "distribution": [{"@type": "DataDownload", "additionalType": "http://www.w3.org/ns/dcat#DataCatalog", "encodingFormat": "text/xml", "name": "ISO Metadata Document", "url": "https://www.usap-dc.org/metadata/isoxml/602056iso.xml", "contentUrl": "/dataset/filename"}, {"@type": "DataDownload", "@id": "https://www.usap-dc.org/view/dataset/602056", "additionalType": "dcat:distribution", "url": "https://www.usap-dc.org/view/dataset/602056", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}, {"@type": "DataDownload", "@id": "https://www.usap-dc.org/view/dataset/602056", "additionalType": "dcat:distribution", "url": "https://www.usap-dc.org/view/dataset/602056", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}], "identifier": {"@type": "PropertyValue", "url": "https://www.usap-dc.org/view/dataset/602056", "value": "https://www.usap-dc.org/view/dataset/602056"}, "contributor": [{"@type": "Role", "roleName": "credit", "description": "funderName:NSF:GEO:OPP:Antarctic Integrated System Science awardNumber:1744885 awardTitle:Collaborative Research: Linking Predator Behavior and Resource Distributions: Penguin-directed Exploration of an Ecological Hotspot"}], "license": [{"@type": "CreativeWork", "URL": "https://creativecommons.org/licenses/by/4.0/", "name": "MD_Constraints", "description": "useLimitation: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0]."}, {"@type": "CreativeWork", "name": "MD_LegalConstraints", "description": "accessConstraints: license. otherConstraints: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0]."}, {"@type": "CreativeWork", "name": "MD_SecurityConstraints", "description": "classification: "}], "publisher": {"@type": "Organization", "name": "U.S. Antarctic Program (USAP) Data Center"}, "spatialCoverage": [{"@type": "Place", "geo": {"@type": "GeoShape", "box": "-64.89, -64.12, -64.76, -63.76"}}]}

Ancillary Instrument measures via AUV - Palmer Summer 2022-2023 B-308-P Cite as Moline, M. (2026) "Ancillary Instrument measures via AUV - Palmer Summer 2022-2023 B-308-P" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/None. Abstract During the 2022-2023 Antarctic penguin breeding season, we used a newly developed echosounder payload on autonomous underwater vehicles as part of this program to sample krill at fine resolution. Diving as deep as 75m and then utilizing a triangle depth pattern near the highest densities, the AUVs sampled the oceanography within the prey fields. Twenty-four AUV science sampling missions took place during the 2022-23 field season in various environments and conditions. These observations were paired with new video recording tags carried by the penguins to provide a unique in situ perspective on the Antarctic habitat. These observations reveal an abundance of small-scale krill patches in the habitat that were used by foraging penguins. These krill patches would likely be missed from surface-based observations. These fine scale observations were only possible during one field season because of restrictions due to the COVID-19 pandemic (2020-21 ), pier construction at Palmer Station (2021-22) and subsequent heat-loop project (2023-24). To provide context to these detailed observations and in a separate effort, our team is analyzed echosounder data collected over a number of years (2018-2024) from a surface RHIB as part of the Palmer Long-Term Ecological Research program. These data were collected by the LTER team within habitat zones used by foraging penguins during the breeding season designed to elucidate linkages between the predators and prey. The LTER has lacked dedicated personnel with the expertise to analyze and interpret these particular results over the full time-series, so this analysis was conducted as part of this project in lieu of the single field season at Palmer Station for reasons stated above. Creator(s): Moline, Mark Date Created: 2026-05-11 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -64.12, East: -63.76, South: -64.89, North: -64.76 Temporal Extent(s) Start: 2022-12-17 - End: 2023-01-28 Award(s) NSF 1744885 Version: 1 Related Project(s) Collaborative Research: Linking Predator Behavior and Resource Distributions: Penguin-directed Exploration of an Ecological Hotspot Keywords Antarctica AUV Cryosphere CTD Fluorescence Irradiance Oceans Palmer Station Salinity Temperature Turbidity