gov.noaa.nmfs.inport:37066 eng UTF8 dataset Mixed Southwest Fisheries Science Center (858)546-7000 8901 La Jolla Shores Dr. La Jolla CA 92037 USA https://swfsc.noaa.gov/ WWW:LINK-1.0-http--link Website Website for this organization information 8:00-16:30 resourceProvider Hinke, Jefferson 858-334-2825 Jefferson.Hinke@noaa.gov pointOfContact 2026-03-04T19:17:18 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) AMLR Temperature Recording Archival Tags Gentoos 2005-2008 v1.2 2005 creation publication NOAA/NMFS/EDM 37066 DOI Registration Authority https://doi.org/10.7289/V50G3H6Z https://www.fisheries.noaa.gov/inport/item/37066 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information tableDigital Hinke, J.T. and W.Z. Trivelpiece. 2011. Daily activity and minimum food requirements during winter for gentoo penguins (Pygoscelis papua) in the South Shetland Islands, Antarctica. Polar Biol (2011) 34:1579-1590. DOI 10.1007/s00300-011-1018-x Estimates of daily activity and consequent demand for food during winter are scarce for many polar seabirds, yet essential for assessing constraints on foraging effort, demand for food, and potential competition with local fisheries. We affixed archival temperature tags to gentoo penguins (Pygoscelis papua) from two colonies in the South Shetland Islands to measure the frequency, timing, and duration of foraging trips and to estimate minimum food requirements during winter. Foraging trip frequencies ranged from 0.85 to 1.0 trips day-1 and were positively correlated with day length. Early winter foraging trips more closely matched day length than late winter foraging trips. The data suggest that individuals maximize foraging time during the early winter period, likely to recover body mass following the breeding season and molt. The more attenuated response of foraging trip durations to increasing day length in late winter may be related to differences in local resource availability or individual behaviors prior to the upcoming breeding season. Minimum food requirements also exhibited a seasonal cycle with a mid-winter minimum. On average, minimum food requirements were estimated at 0.70 ± 0.12 kg day-1. Extrapolated to the regional population of gentoo penguins, winter food requirements by gentoo penguins were equivalent to roughly 33% of annual krill catches by commercial fisheries in the South Shetland Island region over the past decade. Current expansion of the gentoo population and the krill fishery in the southern Scotia Sea warrants continued monitoring of gentoo penguins during winter. We use temperature-recording archival tags to measure the basic activity patterns of gentoo penguins from two breeding colonies in the South Shetland Islands during the 2005, 2006, and 2008 austral winters. We first ask whether foraging trip frequencies, timing, and durations during winter differ across space and time. We then examine the relationship of trip durations with day length to assess how rapid changes in day length during winter affect foraging behavior. Finally, from the observations of daily activity, we estimate the minimum food requirements that are necessary to meet daily energy expenditures associated with the observed daily activity. US Antarctic Marine Living Resources Program completed Hinke, Jefferson 858-334-2825 Jefferson.Hinke@noaa.gov pointOfContact Hinke, Jefferson 858-334-2825 Jefferson.Hinke@noaa.gov custodian asNeeded AMLR Euphausia superba Pygoscelis archival tag ecosystem environmental gentoo krill penguins seasonality temperature winter consumption theme Admiralty Bay Antarctic Antarctica Bransfield Strait Cape Shirreff Copacabana King George Island Livingston Island South Shetlands place DOC/NOAA/NMFS/SWFSC > Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA. U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian AMLR Temperature Recording Archival Tags Gentoos 2005-2008 v1.2 project InPort otherRestrictions Cite As: Southwest Fisheries Science Center, [Date of Access]: AMLR Temperature Recording Archival Tags Gentoos 2005-2008 v1.2 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/37066. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: None otherRestrictions Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the National Marine Fisheries Service, US AMLR or its partners. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 37066 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/swfsc/dmp/pdf/37066.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US oceans -64 -43 -65 -58 FAO Area 48.1, CCAMLR Area 48.1, Antarctic Peninsula, South Shetland Islands, South Orkney Islands 2005 2008 NCEI data archive: https://accession.nodc.noaa.gov/0162405 false eng false Spreadsheet AMLR iBKrill 1-2.csv 2018-09-04 publication iBKrill_calibration_2005 v1-2.csv 2018-09-04 publication Zip Zip Southwest Fisheries Science Center (858)546-7000 8901 La Jolla Shores Dr. La Jolla CA 92037 USA https://swfsc.noaa.gov/ WWW:LINK-1.0-http--link Southwest Fisheries Science Center Website Website listed for Southwest Fisheries Science Center information 8:00-16:30 distributor https://doi.org/10.7289/V50G3H6Z WWW:LINK-1.0-http--link 162405.1.1.tar.gz download dataset Accuracy +/- 1 ° C Quantitation Limits Temperature ranges from - 40 ° C to + 85 ° C Raw data are collected by researchers at land based stations, entered into data files, reviewed for QA/QC and later on shore-based servers. otherRestrictions otherRestrictions Access Constraints: None | Use Constraints: None iBKrill Archival Temperature Recorder A small (25x13x8mm) archival temperature recording tag suitable for external attachment on free-ranging marine animals.