Item Identification

Title: AMLR Temperature Recording Archival Tags Gentoos 2005-2008 v1.2
Status: In Work
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.

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 Package Reference #: 3G4LUL

Keywords

Theme Keywords

Thesaurus Keyword
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

Spatial Keywords

Thesaurus Keyword
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

Physical Location

Organization: Southwest Fisheries Science Center
City: La Jolla
State/Province: CA
Country: USA

Data Set Information

Data Set Type: Mixed
Maintenance Frequency: As needed
Data Set Publication Status: Published
Data Presentation Form: Table (digital)
Source Media Type: Online
Data Set Credit: US Antarctic Marine Living Resources Program
Instrument: (various)
Platform: land based research stations
Physical Collection / Fishing Gear: (various)

Support Roles

Data Steward

CC ID: 386786
Date Effective From: 2011-05-09
Date Effective To: Present
Person: Stephanie Sexton
Mailing Address (Business): 8901 La Jolla Shores Dr
La Jolla, CA 92037
USA
Email Address: stephanie.sexton@noaa.gov
Phone Number: 858-546-5604
Fax: 858-546-7003
Organization: Southwest Fisheries Science Center (SWFSC)
Organization Address: 8901 La Jolla Shores Dr.
La Jolla, CA 92037
USA
Organization Phone: (858)546-7000
Organization URL: http://swfsc.noaa.gov/
Organization Business Hours: 8:00-16:30

Distributor

CC ID: 386785
Date Effective From: 2011-05-09
Date Effective To: Present
Person: Stephanie Sexton
Mailing Address (Business): 8901 La Jolla Shores Dr
La Jolla, CA 92037
USA
Email Address: stephanie.sexton@noaa.gov
Phone Number: 858-546-5604
Fax: 858-546-7003
Organization: Southwest Fisheries Science Center (SWFSC)
Organization Address: 8901 La Jolla Shores Dr.
La Jolla, CA 92037
USA
Organization Phone: (858)546-7000
Organization URL: http://swfsc.noaa.gov/
Organization Business Hours: 8:00-16:30

Metadata Contact

CC ID: 386784
Date Effective From: 2011-05-09
Date Effective To: Present
Person: Stephanie Sexton
Mailing Address (Business): 8901 La Jolla Shores Dr
La Jolla, CA 92037
USA
Email Address: stephanie.sexton@noaa.gov
Phone Number: 858-546-5604
Fax: 858-546-7003
Organization: Southwest Fisheries Science Center (SWFSC)
Organization Address: 8901 La Jolla Shores Dr.
La Jolla, CA 92037
USA
Organization Phone: (858)546-7000
Organization URL: http://swfsc.noaa.gov/
Organization Business Hours: 8:00-16:30

Point Of Contact

CC ID: 386783
Date Effective From: 2011-05-09
Date Effective To: Present
Person: Stephanie Sexton
Mailing Address (Business): 8901 La Jolla Shores Dr
La Jolla, CA 92037
USA
Email Address: stephanie.sexton@noaa.gov
Phone Number: 858-546-5604
Fax: 858-546-7003
Organization: Southwest Fisheries Science Center (SWFSC)
Organization Address: 8901 La Jolla Shores Dr.
La Jolla, CA 92037
USA
Organization Phone: (858)546-7000
Organization URL: http://swfsc.noaa.gov/
Organization Business Hours: 8:00-16:30

Extents

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 386789
W° Bound: -64
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 / Time Frame 1

CC ID: 386788
Time Frame Type: Range
Start: 2005
End: 2008

Access Information

Security Class: Unclassified
Data Access Policy:

Available online at https://swfsc.noaa.gov/AERD-Data/

Data Access Procedure:

https://swfsc.noaa.gov/AERD-Data/

Data Access Constraints:

None

Data Use Constraints:

None

Metadata Access Constraints:

None

Metadata Use Constraints:

None

Distribution Information

Distribution 1

CC ID: 386794
Download URL: https://swfsc.noaa.gov/AERD-Data/

Distribution 2

CC ID: 389196
Download URL: https://www.nodc.noaa.gov/access/

URLs

URL 1

CC ID: 386791
URL: https://swfsc.noaa.gov/AERD-Data/
URL Type:
Online Resource

Data Quality

Quality Control Procedures Employed:

Data collected using recognized protocols.

Data Management

Have Resources for Management of these Data Been Identified?: No
Approximate Percentage of Budget for these Data Devoted to Data Management: Unknown
Do these Data Comply with the Data Access Directive?: No
Is Access to the Data Limited Based on an Approved Waiver?: No
Approximate Delay Between Data Collection and Dissemination: Two years
Actual or Planned Long-Term Data Archive Location: NCEI-CO
Approximate Delay Between Data Collection and Archiving: Two years
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

Data are stored on a server at the Southwest Fisheries Science Center which has all appropriate access controls.

Lineage

Lineage Statement:

Raw data are collected by researchers at land based stations, entered into data files, reviewed for QA/QC and later on shore-based servers.

Child Items

Rubric scores updated every 15m

Type Title
100
Entity (ENT) AMLR iBKrill 1-2.csv
100
Entity (ENT) iBKrill_calibration_2005 v1-2.csv

Catalog Details

Catalog Item ID: 37066
Metadata Record Created By: Stephanie Sexton
Metadata Record Created: 2017-03-08 17:37+0000
Metadata Record Last Modified By: Stephanie Sexton
Metadata Record Last Modified: 2017-04-20 12:40+0000
Metadata Record Published: 2017-04-20
Owner Org: SWFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2018-04-21
Linking Share Level: Within this Item's Project