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

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.

Simple

Identification info

Date (Creation)
2017-12-11

Principal investigator

Centre for Marine Science and Technology (CMST), Curtin University - Prof. Christine Erbe
GPO Box U1987
Perth
Western Australia
6845
Australia
ORCID ID >

Principal investigator

Centre for Marine Science and Technology (CMST), Curtin University - Dr. Chandra Salgado Kent
GPO Box U1987
Perth
Western Australia
6845
Australia
ORCID ID >

Principal investigator

Centre for Marine Science and Technology (CMST), Curtin University - Dr Ian Parnum
GPO Box U1987
Perth
Western Australia
6845
Australia

Principal investigator

Centre for Marine Science and Technology (CMST), Curtin University - Rebecca Wellard
GPO Box U1987
Perth
Western Australia
6845
Australia
ORCID ID >

Principal investigator

University College London - Leila Fouda
London NERC DTP, c/o Dept of Geography, University College London,
Gower Street
London
WC1E 6BT
United Kingdom
ORCID ID >

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
Status
Completed

Point of contact

Centre for Marine Science and Technology (CMST), Curtin University - Dr. Chandra Salgado Kent
GPO Box U1987
Perth
Western Australia
6845
Australia
ORCID ID >

Topic category
  • Biota

Extent

N
S
E
W


Temporal extent

Time period
2015-02-01 2017-04-30
Maintenance and update frequency
Not planned
Keywords (Taxon)
  • Killer whale
  • Orcinus orca
NASA/GCMD Keywords, Version 8.5

Resource constraints

Linkage
http://i.creativecommons.org/l/by-nc/4.0/88x31.png

License Graphic

Title
Creative Commons Attribution-NonCommercial 4.0 International License


>

Website
http://creativecommons.org/licenses/by-nc/4.0/

License Text

Other constraints
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).
Other constraints
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).
Other constraints
The data described in this record are the intellectual property of the University of Western Australia and Curtin University of Technology.
Other constraints
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.
Language
English
Character encoding
UTF8

Content Information

Content type
Physical measurement

Distribution Information

Distribution format

OnLine resource
REPORT [contains synthesised data] - Habitat preferences and distribution of killer whales in the Bremer Sub-Basin, Australia

OnLine resource
NESP Marine Biodiversity Hub Project EP2 webpage

Resource lineage

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).
Hierarchy level
Dataset

Metadata

Metadata identifier
dca17ddc-9cae-4de0-8dbe-4d8141be5886

Language
English
Character encoding
UTF8

Point of contact

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Emma Flukes (NESP Marine Biodiversity Hub Data Manager)
Private Bag 129
Hobart
Tasmania
7001
Australia
Parent metadata

Type of resource

Resource scope
Dataset
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/dca17ddc-9cae-4de0-8dbe-4d8141be5886

Point of truth URL of this metadata record

Date info (Creation)
2020-09-17T12:58:24
Date info (Revision)
2020-09-17T12:58:24

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

Spatial extent

N
S
E
W


Keywords

NASA/GCMD Keywords, Version 8.5
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 | BIOSPHERE | ECOSYSTEMS | MARINE ECOSYSTEMS EARTH SCIENCE | OCEANS | BATHYMETRY/SEAFLOOR TOPOGRAPHY | SUBMARINE CANYONS EARTH SCIENCE | OCEANS | MARINE ENVIRONMENT MONITORING

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Associated resources

Not available