USAP-DC

[{"dataset_id": "601919", "west": -66.11382, "east": -60.74883333, "south": -71.0822, "north": -55.75238333, "gid": 1399, "geometry": "0101000020E6100000AC0850B635B74FC0C10833D069B54FC0", "cross_dateline": false, "bounds_geometry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}]

{"@context": "https://schema.org/", "@type": "Dataset", "@id": "doi:10.15784/601919", "additionalType": ["geolink:Dataset", "vivo:Dataset"], "name": "Winter Female Krill Oocyte Size", "description": "This dataset contains measurements of the diameter and area of Antarctic krill (Euphausia superba) oocytes collected from the northern Antarctic Peninsula during the austral winter from 2012 to 2016 (August each year). Female oocytes were examined using the \"squash technique\" developed by Cuzin-Roudy and Amsler (1991) for assessing ovarian development and sexual maturity. The squash method provides a detailed view of oocyte size, which serves as an indicator of reproductive status and energy allocation during the winter months. Data were collected and processed according to the methods described by Steinke et al. (2024). The dataset includes .csv files containing oocyte diameter and area measurements for individual female krill. These data are valuable for understanding krill reproductive cycles and their ecological responses to environmental variability. Data users should acknowledge the project and grant number, as well as credit Dr. Kim Bernard, Dr. Kirsten Steinke, and Dr. Christian Reiss. The research was conducted in collaboration with the US National Oceanic and Atmospheric Administration Antarctic Marine Living Resources group.", "citation": "Bernard, K. (2025) \"Winter Female Krill Oocyte Size\" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601919.", "datePublished": "2025-03-14", "keywords": ["Antarctica", "Biota", "Cryosphere", "Krill", "Oceans", "Southern Ocean"], "creator": [{"@type": "Person", "additionalType": "geolink:Person", "name": "Bernard, Kim", "email": "kim.bernard@oregonstate.edu", "affiliation": {"@type": "Organization", "name": null}}], "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/601919iso.xml", "contentUrl": "/dataset/filename"}, {"@type": "DataDownload", "@id": "http://dx.doi.org/10.15784/601919", "additionalType": "dcat:distribution", "url": "http://dx.doi.org/10.15784/601919", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}, {"@type": "DataDownload", "@id": "https://www.usap-dc.org/view/dataset/601919", "additionalType": "dcat:distribution", "url": "https://www.usap-dc.org/view/dataset/601919", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}], "identifier": {"@type": "PropertyValue", "propertyID": "https://registry.identifiers.org/registry/doi", "value": "doi:10.15784/601919", "url": "https://doi.org/10.15784/601919"}, "contributor": [{"@type": "Role", "roleName": "credit", "description": "funderName:NSF:GEO:OPP:Antarctic Organisms and Ecosystems awardNumber:2038145 awardTitle:Drivers of Antarctic Krill Reproductive Output"}], "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": "-71.0822, -66.11382, -55.75238333, -60.74883333"}}]}

Winter Female Krill Oocyte Size Data DOI: https://doi.org/10.15784/601919 Cite as Bernard, K. (2025) "Winter Female Krill Oocyte Size" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601919. Abstract This dataset contains measurements of the diameter and area of Antarctic krill (Euphausia superba) oocytes collected from the northern Antarctic Peninsula during the austral winter from 2012 to 2016 (August each year). Female oocytes were examined using the "squash technique" developed by Cuzin-Roudy and Amsler (1991) for assessing ovarian development and sexual maturity. The squash method provides a detailed view of oocyte size, which serves as an indicator of reproductive status and energy allocation during the winter months. Data were collected and processed according to the methods described by Steinke et al. (2024). The dataset includes .csv files containing oocyte diameter and area measurements for individual female krill. These data are valuable for understanding krill reproductive cycles and their ecological responses to environmental variability. Data users should acknowledge the project and grant number, as well as credit Dr. Kim Bernard, Dr. Kirsten Steinke, and Dr. Christian Reiss. The research was conducted in collaboration with the US National Oceanic and Atmospheric Administration Antarctic Marine Living Resources group. Creator(s): Bernard, Kim Date Created: 2025-03-17 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -66.11382, East: -60.74883333, South: -71.0822, North: -55.75238333 Award(s) NSF 2038145 Version: 1 Related Project(s) Drivers of Antarctic Krill Reproductive Output References Steinke KB, Bernard KS, Correa GM, Reiss CS, Walsh J, Stammerjohn SE. 2024. Factors impacting the timing of early reproductive development in female Antarctic krill at the northern Antarctic Peninsula. Frontiers in Marine Science. 11. (doi:10.3389/fmars.2024.1383175) Keywords Antarctica Biota Cryosphere Krill Oceans Southern Ocean