AMLR Acoustic Data
Southwest Fisheries Science Center
Project
(PRJ)
| ID: 31075
| Published / External
Created: 2016-03-08
|
Last Modified: 2022-08-09
Project (PRJ) | ID: 10759
ID: 31075
Project (PRJ)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | AMLR Acoustic Data |
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Short Name | AMLR Acoustic Data |
* Status | In Work |
Creation Date | |
Revision Date | |
• Publication Date | |
* » Abstract |
Antarctic krill (Euphausia superba, Dana) are among the most abundant animal in the Antarctic. However, in a habitat roughly the size of England, finding them can be difficult. These important and sometimes elusive animals are the primary prey item for all of the major predators in the Southern Ocean, including humans. The AERD has used acoustic monitoring of the productive waters around the South Shetland Islands to find and count these elusive animals since 1992, both on their daily migrations up and down through the water column and on their long-term migrations that follow the regional currents. By tracking krill, the AERD is able to determine their relative annual abundance, dispersion, and population density. Combined with biological and physical oceanographic data, these acoustically-determined krill population patterns allow US scientists to understand how krill interact with their environment, and will help determine which environmental changes might impact their population size. |
* Purpose |
Completed on an annual basis, these surveys have become a critical element of the krill management decision-making process. Because these surveys have been completed annually for almost 20 years, AERD scientists are also able draw comparisons to annual changes in environmental conditions on a long-term scale. With the significant changes in the Antarctic environment occurring owing to global climate change, AERD data are a critical component of NOAAs Climate Change Program. The international community that utilizes Antarctic resources has come to rely heavily on the information provided by these acoustic surveys to monitor the effects of the krill fishery on this economically vital population, and to link these effects to changes in land-based predator populations like seals, penguins, and great whales. |
Notes | |
Other Citation Details |
The datasets incorporated into this archive have been collected by researchers affiliated with the U.S. Antarctic Marine Living Resources (AMLR) Program under the National Marine Fisheries Service (NMFS). These data are part of a long term ecosystem project centered on the South Shetland Islands off the Antarctic Peninsula, Antarctica. Funding for this project was from the NMFS AMLR Program. Data were collected from land and ship based platforms. |
• Supplemental Information | |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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None | acoustics |
None | AMLR |
None | bathymetry |
None | bioacoustic |
None | biomass |
None | CCAMLR |
None | copepod |
None | ecosystem |
None | environmental |
None | invertebrate |
None | krill |
None | marine |
None | population |
None | salps |
None | surveys |
None | zooplankton |
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 | Chile |
None | Clarence Island |
None | Copacabana |
None | Deception Island |
None | Drake Passage |
None | Elephant Island |
None | King George Island |
None | Livingston Island |
None | Peninsula |
None | San Telmo Islands |
None | Seal Island |
None | South Shetlands |
Stratum Keywords
Thesaurus | Keyword |
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Instrument Keywords
Thesaurus | Keyword |
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Platform Keywords
Thesaurus | Keyword |
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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 |
Project Information
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Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2019 |
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 |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2019 |
Date Effective To | |
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 | 2019 |
Date Effective To | |
Person | Reiss, Christian |
Email Address | christian.reiss@noaa.gov |
Phone | |
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Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2019 |
Date Effective To | |
Person | Reiss, Christian |
Email Address | christian.reiss@noaa.gov |
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* » Contact | |
* Contact Instructions |
Extents
Currentness Reference | Ground Condition |
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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
EPSG Code | |
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Vertical Maximum |
Extent Group 1 / Time Frame 1
* » Time Frame Type | Continuing |
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* » Start | 1992 |
End | |
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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 upon request; response time varies based on data management resources available at the time of the request |
» Data Access Procedure |
Contact AMLR Point of Contact as provided in Inport |
• » Data Access Constraints |
None |
• Data Use Constraints |
None |
Metadata Access Constraints |
None |
Metadata Use Constraints |
None |
Distribution Information
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URLs
URL | https://www.fisheries.noaa.gov/about/antarctic-ecosystem-research-division-southwest-fisheries-science-center |
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Name | |
URL Type | Online Resource |
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Activity Log
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Technical Environment
Description |
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Data Quality
Representativeness | |
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Accuracy |
Echosounders are calibrated to industry standards. |
Analytical Accuracy | |
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Vertical Positional Accuracy | |
Quantitation Limits | |
Bias | |
Comparability | |
Completeness Measure | |
Precision | |
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Field Precision | |
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Detection Limit | |
Completeness Report | |
Conceptual Consistency | |
» Quality Control Procedures Employed |
Echosounders are calibrated to industry standards. |
Acronyms
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FAQs
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Child Items
Rubric scores updated every 15m
Score | Type | Title |
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Project (PRJ) | AMLR Acoustics Data 1996-2011 v1.1 | |
Related Items
Item Type | Relationship Type | Title |
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Catalog Details
Catalog Item ID | 31075 |
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Metadata Record Created By | Stephanie Sexton |
Metadata Record Created | 2016-03-08 19:11+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2022-08-09 17:11+0000 |
Metadata Record Published | 2019-07-24 |
Owner Org | SWFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2019-07-24 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2020-07-24 |
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