Data

Echosounder data to assess patterns in krill density - voyage of the RV Tangaroa, 2015

Australian Antarctic Division
O'Driscoll, R., Ladroit , Y., Cox, M. and Double, M. ; O'DRISCOLL, RICHARD ; LADROIT, YOANN ; COX, MARTIN ; DOUBLE, MIKE
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.aad.gov.au/metadata/AAS_4102_KrillAcoustics_2015&rft.title=Echosounder data to assess patterns in krill density - voyage of the RV Tangaroa, 2015&rft.identifier=http://data.aad.gov.au/metadata/AAS_4102_KrillAcoustics_2015&rft.publisher=Australian Antarctic Data Centre&rft.description=Echosounder data were collected on a multidisciplinary research voyage conducted from the RV Tangaroa, operated by New Zealand’s National Institute of Water and Atmospheric Research Limited (NIWA). The voyage lasted 42 days, departing from Wellington, New Zealand on January 29th , 2015 and returning to the same port on 11th March 2015.Active acoustic data were obtained continuously using a calibrated scientific echosounder (Simrad EK60, Horten, Norway). The echosounder operated at 38 and 120 kHz for the duration of the voyage with a pulse duration of 1.024 ms, a pulse repetition rate of one ping per second and a 7° beam width. The echosounder data here are a subset of that collected throughout the voyage and include only data from south of 65°S. This subset of data focuses on research questions pertaining to Antarctic blue whales and krill.Progress Code: completedStatement: The quality of these data are good, and there were no problems with the dataset.&rft.creator=O'Driscoll, R., Ladroit , Y., Cox, M. and Double, M. &rft.creator=O'DRISCOLL, RICHARD &rft.creator=LADROIT, YOANN &rft.creator=COX, MARTIN &rft.creator=DOUBLE, MIKE &rft.date=2019&rft.coverage=westlimit=165; southlimit=-75; eastlimit=180; northlimit=-65&rft.coverage=westlimit=165; southlimit=-75; eastlimit=180; northlimit=-65&rft.coverage=uplimit=0; downlimit=0&rft.coverage=uplimit=0; downlimit=0&rft.coverage=uplimit=300; downlimit=5&rft.coverage=uplimit=300; downlimit=5&rft_rights=These data are publicly available for download from the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4102_KrillAcoustics_2015 when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=oceans&rft_subject=biota&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CETACEANS > BALEEN WHALES&rft_subject=ECHO SOUNDERS&rft_subject=R/V TANGAROA&rft_subject=AMD&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=OCEAN > SOUTHERN OCEAN > ROSS SEA&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
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Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

These data are publicly available for download from the provided URL.

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4102_KrillAcoustics_2015 when using these data.

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Full description

Echosounder data were collected on a multidisciplinary research voyage conducted from the RV Tangaroa, operated by New Zealand’s National Institute of Water and Atmospheric Research Limited (NIWA). The voyage lasted 42 days, departing from Wellington, New Zealand on January 29th , 2015 and returning to the same port on 11th March 2015.
Active acoustic data were obtained continuously using a calibrated scientific echosounder (Simrad EK60, Horten, Norway). The echosounder operated at 38 and 120 kHz for the duration of the voyage with a pulse duration of 1.024 ms, a pulse repetition rate of one ping per second and a 7° beam width. The echosounder data here are a subset of that collected throughout the voyage and include only data from south of 65°S. This subset of data focuses on research questions pertaining to Antarctic blue whales and krill.

Lineage

Progress Code: completed
Statement: The quality of these data are good, and there were no problems with the dataset.

Notes

Purpose
Echosounder data were collected to investigate krill in the vicinity of, and demonstrably far from vocalising Antarctic blue whales. See Miller et al. 2019 (Sci. Rep. 9:16487; https://doi.org/10.1038/s41598-019-52792-4) for a more detailed description of these research questions.

Data time period: 2015-02-02 to 2015-02-28

This dataset is part of a larger collection

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180,-65 180,-75 165,-75 165,-65 180,-65

172.5,-70

text: westlimit=165; southlimit=-75; eastlimit=180; northlimit=-65

text: uplimit=0; downlimit=0

text: uplimit=300; downlimit=5

Subjects
AMD | AMD/AU | CEOS | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL) | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CETACEANS > BALEEN WHALES | ECHO SOUNDERS | GEOGRAPHIC REGION > POLAR | OCEAN > SOUTHERN OCEAN | OCEAN > SOUTHERN OCEAN > ROSS SEA | R/V TANGAROA | biota | oceans |

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Other Information
Download the dataset. (GET DATA > DIRECT DOWNLOAD)

uri : https://data.aad.gov.au/eds/5048/download

Public information for AAS project AAS_4102 (PROJECT HOME PAGE)

uri : https://projects.aad.gov.au/search_projects_results.cfm?project_no=AAS_4102

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

uri : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4102_KrillAcoustics_2015

Identifiers
  • global : AAS_4102_KrillAcoustics_2015