AMLR Temperature Recording Archival Tags Gentoos 2005-2008 v1.2
Southwest Fisheries Science Center
Project
(PRJ)
| ID: 47591
| Published / External
Created: 2017-10-06
|
Last Modified: 2022-08-09
Project (PRJ) | ID: 31107
ID: 47591
Project (PRJ)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | AMLR Temperature Recording Archival Tags Gentoos 2005-2008 v1.2 |
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Short Name | |
* Status | Completed |
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• Publication Date | |
* » Abstract |
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. |
* Purpose |
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. |
Notes | |
Other Citation Details |
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 |
• Supplemental Information |
NCEI data archive: https://doi.org/10.7289/V50G3H6Z |
DOI (Digital Object Identifier) | https://doi.org/10.7289/V50G3H6Z |
DOI Registration Authority | DOI Registration Authority |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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None | AMLR |
None | archival tag |
None | ecosystem |
None | environmental |
None | Euphausia superba |
None | gentoo |
None | krill |
None | penguins |
None | Pygoscelis |
None | seasonality |
None | temperature |
None | winter consumption |
Temporal Keywords
Thesaurus | Keyword |
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* Spatial Keywords
Thesaurus | Keyword |
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None | Admiralty Bay |
None | Antarctic |
None | Antarctica |
None | Bransfield Strait |
None | Cape Shirreff |
None | Copacabana |
None | King George Island |
None | Livingston Island |
None | South Shetlands |
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Physical Location
• » Organization | Southwest Fisheries Science Center |
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• » City | La Jolla |
• » State/Province | CA |
• Country | USA |
• » Location Description |
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* » Support Role | Data Steward |
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* » Date Effective From | 2011-05-09 |
Date Effective To | |
Person | Woodman, Sam |
Address |
8901 La Jolla Shores Dr La Jolla, CA 92037 USA |
Email Address | sam.woodman@noaa.gov |
Phone | 858-546-7138 |
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* » Support Role | Distributor |
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* » Date Effective From | 2011-05-09 |
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Organization | Southwest Fisheries Science Center (SWFSC) |
Address |
8901 La Jolla Shores Dr. La Jolla, CA 92037 USA |
Email Address | |
Phone | (858)546-7000 |
Fax | |
Mobile | |
URL | http://swfsc.noaa.gov/ |
Business Hours | 8:00-16:30 |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2011-05-09 |
Date Effective To | |
Person | Woodman, Sam |
Address |
8901 La Jolla Shores Dr La Jolla, CA 92037 USA |
Email Address | sam.woodman@noaa.gov |
Phone | 858-546-7138 |
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* » Support Role | Point of Contact |
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* » Date Effective From | 2011-05-09 |
Date Effective To | |
Person | Woodman, Sam |
Address |
8901 La Jolla Shores Dr La Jolla, CA 92037 USA |
Email Address | sam.woodman@noaa.gov |
Phone | 858-546-7138 |
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Extents
Currentness Reference |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -64 |
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* » E° Bound | -43 |
* » N° Bound | -58 |
* » S° Bound | -65 |
* » Description |
FAO Area 48.1, CCAMLR Area 48.1, Antarctic Peninsula, South Shetland Islands, South Orkney Islands |
Extent Group 1 / Vertical Extent
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Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2005 |
End | 2008 |
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Alternate End As Of Info | |
Description |
Access Information
* » Security Class | Unclassified |
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* Security Classification System | |
Security Handling Description | |
• Data Access Policy |
Available online at https://www.fisheries.noaa.gov/about/antarctic-ecosystem-research-division-southwest-fisheries-science-center |
» Data Access Procedure |
https://www.fisheries.noaa.gov/about/antarctic-ecosystem-research-division-southwest-fisheries-science-center |
• » Data Access Constraints |
None |
• Data Use Constraints |
None |
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None |
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None |
Distribution Information
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» Download URL | https://doi.org/10.7289/V50G3H6Z |
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URLs
URL | https://www.fisheries.noaa.gov/about/antarctic-ecosystem-research-division-southwest-fisheries-science-center |
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URL Type | Online Resource |
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URL | https://doi.org/10.7289/V50G3H6Z |
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Activity Log
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» Quality Control Procedures Employed |
Data collected using recognized protocols. |
Acronyms
Acronym | Meaning |
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AERD | Antarctic Ecosystem Research Division (US DOC/NOAA/NMFS/SWFSC) |
AMLR | Antarctic Marine Living Resources Program (US DOC/NOAA/NMFS/SWFSC/AERD) |
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Child Items
Rubric scores updated every 15m
Score | Type | Title |
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100 | Data Set (DS) | AMLR Temperature Recording Archival Tags Gentoos 2005-2008 v1.2 |
Related Items
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Catalog Details
Catalog Item ID | 47591 |
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Metadata Record Created By | Stephanie Sexton |
Metadata Record Created | 2017-10-06 18:15+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2022-08-09 17:11+0000 |
Metadata Record Published | 2017-10-06 |
Owner Org | SWFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2017-10-06 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2018-10-06 |
Tags |
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