Data

Spatial distribution of killer whales (Orcinus orca) in the Bremer Marine Park and adjacent areas (NESP Emerging Priorities EP2)

University of Tasmania, Australia
Prof. Christine Erbe ; Dr. Chandra Salgado Kent ; Dr Ian Parnum ; Rebecca Wellard ; Leila Fouda
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=https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/dca17ddc-9cae-4de0-8dbe-4d8141be5886&rft.title=Spatial distribution of killer whales (Orcinus orca) in the Bremer Marine Park and adjacent areas (NESP Emerging Priorities EP2)&rft.identifier=https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/dca17ddc-9cae-4de0-8dbe-4d8141be5886&rft.description=This dataset relates to statistical models of killer whale (Orcinus orca) occurrence in the Bremer Sub-Basin developed from vessel-based and aerial survey data collected between 2015 and 2017. Further information can be found in: Salgado-Kent C, Parnum I, Wellard R, Erbe C, Fouda L. 2017. Habitat preferences and distribution of killer whales (Orcinus orca) in the Bremer Sub-Basin, Australia. Report to the National Environmental Science Programme Marine Biodiversity Hub (CMST 2017-15), 37 p.Maintenance and Update Frequency: notPlannedStatement: Opportunistic, non-systematic vessel surveys were conducted in an area approximately 4,000 sq. km within the Bremer canyon system (centred at 34°44.30'S latitude and 119°35.55'E longitude) between February and April 2015 and 2016. The surveys were undertaken from commercial eco-tourism vessels Cetacean Explorer and Dhu Force (operated by Naturaliste Charters in 2015 and 2016) while these vessels were carrying out normal ecotourism manoeuvres taking tourists to see killer whales. Between March and April 2017, non-systematic vessel surveys were also conducted in the same vicinity aboard a dedicated research vessel Big Dreams chartered by MIRG Australia. Observations were recorded by a minimum of two individuals scanning the area forward to abeam of the vessel on port and starboard sides. Upon sighting a group of killer whales, the GPS position of the vessel, group size and behavioural state were noted. The vessel then switched to closing mode and the group was slowly approached to within 50 m to take photographs and capture more accurate information on group size, group composition (numbers of adults and calves) and predominant behavioural state. Aerial surveys were additionally conducted in March 2017 with a total of 6 flight survey days. A twin-engine over-head wing Cessna 337 aircraft with bubble windows was chartered from Norwest Air Work Pty Ltd to survey pre-determined transects at an altitude of 300 m and a speed of 120 knots (see associated metadata record http://catalogue.aodn.org.au/geonetwork/srv/eng/metadata.show?uuid=7526a44e-dea3-496c-81f4-776d908e2923). The spatial occurrence of killer whale groups over time was modelled as a function of environmental covariates (e.g. seabed depth, seabed slope, mean sea surface temperature) using Generalized Estimation Equations (GEEs) with a log-link function (for Poisson distributed count data).&rft.creator=Prof. Christine Erbe &rft.creator=Dr. Chandra Salgado Kent &rft.creator=Dr Ian Parnum &rft.creator=Rebecca Wellard &rft.creator=Leila Fouda &rft.date=2017&rft.coverage=westlimit=119.120337976; southlimit=-34.9572878809; eastlimit=120.241039656; northlimit=-34.3885871722&rft.coverage=westlimit=119.120337976; southlimit=-34.9572878809; eastlimit=120.241039656; northlimit=-34.3885871722&rft_rights= http://creativecommons.org/licenses/by-nc/4.0/&rft_rights=http://i.creativecommons.org/l/by-nc/4.0/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution-NonCommercial 4.0 International License&rft_rights=http://creativecommons.org/international/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).&rft_rights=Data were analysed for the NESP Marine Biodiversity Hub, a national partnership supported through funding from the Australian Government’s National Environmental Science Program (NESP) and administered by the Department of the Environment (DOE).&rft_rights=The data described in this record are the intellectual property of the University of Western Australia and Curtin University of Technology.&rft_rights=Killer whale raw distribution data obtained from aerial surveys is available from http://catalogue.aodn.org.au/geonetwork/srv/eng/metadata.show?uuid=7526a44e-dea3-496c-81f4-776d908e2923. Vessel surveys were conducted under various different (non-NESP) funding schemes. Please refer to the Points of Contact listed in this record for information regarding access to this raw data.&rft_rights=Creative Commons Attribution-NonCommercial 4.0 International License http://creativecommons.org/licenses/by-nc/4.0&rft_subject=biota&rft_subject=Killer whale&rft_subject=Orcinus orca&rft_subject=EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | ANIMALS/VERTEBRATES | MAMMALS | CETACEANS | TOOTHED WHALES&rft_subject=EARTH SCIENCE | OCEANS | BATHYMETRY/SEAFLOOR TOPOGRAPHY | SUBMARINE CANYONS&rft_subject=EARTH SCIENCE | BIOSPHERE | ECOSYSTEMS | MARINE ECOSYSTEMS&rft_subject=EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | ANIMALS/VERTEBRATES | MAMMALS | CETACEANS&rft_subject=EARTH SCIENCE | OCEANS | MARINE ENVIRONMENT MONITORING&rft.type=dataset&rft.language=English Access the data
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The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).

Data were analysed for the NESP Marine Biodiversity Hub, a national partnership supported through funding from the Australian Government’s National Environmental Science Program (NESP) and administered by the Department of the Environment (DOE).

The data described in this record are the intellectual property of the University of Western Australia and Curtin University of Technology.

Killer whale raw distribution data obtained from aerial surveys is available from http://catalogue.aodn.org.au/geonetwork/srv/eng/metadata.show?uuid=7526a44e-dea3-496c-81f4-776d908e2923. Vessel surveys were conducted under various different (non-NESP) funding schemes. Please refer to the Points of Contact listed in this record for information regarding access to this raw data.

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Brief description

This dataset relates to statistical models of killer whale (Orcinus orca) occurrence in the Bremer Sub-Basin developed from vessel-based and aerial survey data collected between 2015 and 2017. Further information can be found in: Salgado-Kent C, Parnum I, Wellard R, Erbe C, Fouda L. 2017. Habitat preferences and distribution of killer whales (Orcinus orca) in the Bremer Sub-Basin, Australia. Report to the National Environmental Science Programme Marine Biodiversity Hub (CMST 2017-15), 37 p.

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Maintenance and Update Frequency: notPlanned
Statement: Opportunistic, non-systematic vessel surveys were conducted in an area approximately 4,000 sq. km within the Bremer canyon system (centred at 34°44.30'S latitude and 119°35.55'E longitude) between February and April 2015 and 2016. The surveys were undertaken from commercial eco-tourism vessels Cetacean Explorer and Dhu Force (operated by Naturaliste Charters in 2015 and 2016) while these vessels were carrying out normal ecotourism manoeuvres taking tourists to see killer whales. Between March and April 2017, non-systematic vessel surveys were also conducted in the same vicinity aboard a dedicated research vessel Big Dreams chartered by MIRG Australia. Observations were recorded by a minimum of two individuals scanning the area forward to abeam of the vessel on port and starboard sides. Upon sighting a group of killer whales, the GPS position of the vessel, group size and behavioural state were noted. The vessel then switched to closing mode and the group was slowly approached to within 50 m to take photographs and capture more accurate information on group size, group composition (numbers of adults and calves) and predominant behavioural state. Aerial surveys were additionally conducted in March 2017 with a total of 6 flight survey days. A twin-engine over-head wing Cessna 337 aircraft with bubble windows was chartered from Norwest Air Work Pty Ltd to survey pre-determined transects at an altitude of 300 m and a speed of 120 knots (see associated metadata record http://catalogue.aodn.org.au/geonetwork/srv/eng/metadata.show?uuid=7526a44e-dea3-496c-81f4-776d908e2923). The spatial occurrence of killer whale groups over time was modelled as a function of environmental covariates (e.g. seabed depth, seabed slope, mean sea surface temperature) using Generalized Estimation Equations (GEEs) with a log-link function (for Poisson distributed count data).

Notes

Credit
National Environmental Science Program (NESP) Marine Biodiversity Hub
Credit
Naturaliste Charters
Credit
MIRG Australia
Credit
Northwest Air Work
Credit
SeaWorld Busch Gardens Conservation Fund
Credit
Holsworth Wildlife Research Endowment
Credit
Australian Geographic Society

Created: 2017-12-11

Data time period: 2015-02-01 to 2017-04-30

This dataset is part of a larger collection

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120.24104,-34.38859 120.24104,-34.95729 119.12034,-34.95729 119.12034,-34.38859 120.24104,-34.38859

119.680688816,-34.67293752655

text: westlimit=119.120337976; southlimit=-34.9572878809; eastlimit=120.241039656; northlimit=-34.3885871722

Subjects
EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | ANIMALS/VERTEBRATES | MAMMALS | CETACEANS | EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | ANIMALS/VERTEBRATES | MAMMALS | CETACEANS | TOOTHED WHALES | EARTH SCIENCE | BIOSPHERE | ECOSYSTEMS | MARINE ECOSYSTEMS | EARTH SCIENCE | OCEANS | BATHYMETRY/SEAFLOOR TOPOGRAPHY | SUBMARINE CANYONS | EARTH SCIENCE | OCEANS | MARINE ENVIRONMENT MONITORING | Killer whale | Orcinus orca | biota |

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Other Information
(REPORT [contains synthesised data] - Habitat preferences and distribution of killer whales in the Bremer Sub-Basin, Australia)

uri : https://data.imas.utas.edu.au/attachments/dca17ddc-9cae-4de0-8dbe-4d8141be5886/CMST_2017-15_Bremer_Canyon_Orca_Habitat_Final.pdf

(NESP Marine Biodiversity Hub Project EP2 webpage)

uri : https://www.nespmarine.edu.au/project/ep2-surveying-marine-life-canyons-bremer-bay

global : 46fa24be-e0f5-4c3e-befc-99df6b0564e7

Identifiers
  • global : dca17ddc-9cae-4de0-8dbe-4d8141be5886
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