US AMLR Program acoustic dataset

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.

Data e Risorse

Campo Valore
accessLevel public
accrualPeriodicity irregular
bureauCode {006:48}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier gov.noaa.nmfs.inport:11425
language {en-US}
modified 2015-07-30T14:13:03.557000-04:00
old-spatial {"type": "Polygon", "coordinates": [[[-64.0, -65.0], [-43.0, -65.0], [-43.0, -58.0], [-64.0, -58.0], [-64.0, -65.0]]]}
programCode {006:056}
publisher Southwest Fisheries Science Center (Point of Contact)
resource-type Dataset
source_datajson_identifier true
source_hash 2b1a8746a978e48159f118bb5d8c7da9a9735830
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-64.0, -65.0], [-43.0, -65.0], [-43.0, -58.0], [-64.0, -58.0], [-64.0, -65.0]]]}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • acoustics
  • admiralty-bay
  • amerigeo
  • amerigeoss
  • amlr
  • antarctic
  • antarctic-ecosystem-research-division
  • antarctica
  • bathymetry
  • benthic
  • bioacoustic
  • biomass
  • bransfield-strait
  • cape-shirreff
  • ccamlr
  • chile
  • chinstrap
  • chlorophyll
  • ckan
  • clarence-island
  • copacabana
  • copepod
  • ctd
  • deception-island
  • doc-noaa-nmfs-swfsc-southwest-fisheries-science-center
  • drake-passage
  • ecosystem
  • elephant-island
  • environmental
  • finfish
  • fish
  • fur-seal
  • gentoo
  • geo
  • geoss
  • ikmt
  • invertebrate
  • king-george-island
  • krill
  • livingston-island
  • marine
  • mocness
  • myctophids
  • national
  • national-marine-fisheries-service
  • noaa-u-s-department-of-commerce
  • north-america
  • oceanography
  • penguins
  • peninsula
  • phytoplankton
  • pinniped
  • population
  • salinity
  • salps
  • san-telmo-islands
  • satellite
  • seabed
  • seal-island
  • seals
  • skua
  • south-shetlands
  • surveys
  • temperature
  • trawl
  • united-states
  • weather
  • zooplankton
isopen False
license_id notspecified
license_title License not specified
maintainer Sexton, Stephanie
maintainer_email stephanie.sexton@noaa.gov
metadata_created 2025-11-22T13:51:56.269136
metadata_modified 2025-11-22T13:51:56.269141
notes 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.
num_resources 3
num_tags 68
title US AMLR Program acoustic dataset