Data

2021 Aerial survey data of southern right whales (Eubalaena australis) off southern Australia (NESP MaC 1.26)

University of Tasmania, Australia

Smith, Joshua ; Double, Michael

Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]

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The subsequent population estimate for the Australian ‘south-western’ population is 2,549 whales, which represents the majority of the Australian population given the very low numbers in the ‘south-eastern’ subpopulation. The population long-term trend data is indicating recent years (from 2007) are showing greater inter-annual variation in whale counts. To evaluate the recovery of the southern right whale population, it will be critical to collect long-term data on the annual variability in whale numbers related to the non-annual female breeding cycle and identify possible impacts on this by short-term climate dynamics, longer-term climate change and/or anthropogenic threats.Maintenance and Update Frequency: none-plannedStatement: Photo quality will be variable and requires assessment prior to assimilation into photo-identification catalogue http://data.marinemammals.gov.au/arwpic&rft.creator=Smith, Joshua &rft.creator=Double, Michael &rft.date=2022&rft.coverage=-31.969671999663042,115.83638800240442 -32.47875400019689,115.74526400003367 -32.68149400024788,115.60595999985412 -33.28812859995486,115.71151389964677 -33.63946580030637,115.36693740044075 -33.62349800013255,115.12199600021529 -33.63380000036966,115.02791600002344 -33.98682409955251,114.99030960040784 -34.30611200006871,115.16246400031343 -34.33392000000795,115.401211999834 -34.43045852454122,115.70035499118991 -34.83544459988832,116.12485720029963 -34.87731369966747,116.25545989995452 -34.939738199658166,116.37696490040992 -35.016237999783804,116.48214799983042 -35.00474799962046,116.53456980025611 -34.975111999918795,116.72545600009438 -34.97406162144666,117.15156893815607 -34.9657259996551,117.46448399983684 -35.01112481795593,117.69794926384746 -34.85991594506474,118.31393219121776 -34.63687575711044,118.52273997377085 -34.41610516841877,118.91599461785732 -34.40358569902077,119.20312374496494 -34.31518329966951,119.49961070017379 -34.14213599977654,119.58970200024714 -33.98384559979456,119.81651880030243 -33.92311549988038,120.04127240000128 -33.920847386297794,120.4228907035432 -33.77633295250371,121.19547945051625 -33.822604186034326,121.58177381770759 -33.88947399982521,121.82784200010826 -33.82815599959963,121.93467600029727 -33.81682166578718,122.0655118132197 -33.9972407057939,122.16376749427445 -33.91242079987996,122.36816380001937 -33.85612349969972,123.01993159966366 -33.90384599979302,123.13352170006645 -33.89549820028167,123.37146599975621 -33.81103878041535,123.63505019940726 -33.69529822023662,123.71509318090568 -33.557350000202305,123.97735000010243 -33.187101290192345,124.04570549391349 -32.9508733790032,124.27539404330048 -32.83983213354611,124.76261216781732 -32.27666014145233,125.900614504356 -32.2139435785333,126.22985701858657 -32.19768535489516,127.21060760915395 -31.80360878621645,128.65954242044643 -31.670947738047637,129.15125701849672 -31.540651703613207,130.40605009583533 -31.464052999646192,131.14290280012415 -31.570123853133282,131.56891010022105 -31.99210191976772,132.24952187203678 -31.906818934945882,132.54111905949708 -31.972822153919182,132.7833269739607 -32.157474522231375,133.16253097462481 -32.18275269598007,133.33268847309466 -32.12235813042332,133.471683577735 -32.085680000231775,133.61211400036086 -32.23479599963565,133.8223499998527 -32.390243999660804,133.95167000007052 -32.449121276725506,133.9124049673154 -32.48272809982189,134.18410730031178 -32.76867771660329,134.3634997147401 -34.27828249733933,133.22687474207578 -33.69680507119705,131.42973189631005 -33.41234080348523,130.80063625725757 -33.46469869898572,129.49896922165237 -34.03556830863051,127.68914146720499 -34.061897594698166,126.68528165272618 -34.451719737875585,125.85636061385128 -35.21501283137701,125.07601262508261 -35.59430267233039,124.40313053794398 -35.818637721253765,123.23227880082608 -35.705238039703715,121.0705866940208 -36.71385065158625,119.02885155855267 -36.90855617592673,118.29772736572545 -36.791022003362734,116.00978138929975 -36.44826551973791,114.99806459560466 -35.86640206680192,113.8996084091009 -35.17274449106538,113.14550978994487 -34.275506345941096,112.83138050770435 -33.04339969963638,112.93594424852836 -31.871073156201135,113.70455767369778 -31.969671999663042,115.83638800240442&rft_rights=Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/&rft_rights=Cite data as: Smith, J., & Double, M. (2022). 2021 Aerial survey data of southern right whales (Eubalaena australis) off southern Australia [Data set]. Institute for Marine and Antarctic Studies. https://doi.org/10.25959/WBGG-6J38&rft_rights=This dataset is hosted by the University of Tasmania, on behalf of the Australian Antarctic Data Centre and NESP Marine and Coastal Hub Project 1.27.&rft_rights=Data was sourced from the NESP Marine and Coastal Hub – the Marine and Coastal Hub is supported through funding from the Australian Government’s National Environmental Science Program (NESP), administered by the Department of Climate Change, Energy, the Environment and Water.&rft_subject=biota&rft_subject=National Environmental Science Program (NESP) Marine and Coastal Hub&rft_subject=Southern right whale&rft_subject=Areal survey&rft_subject=Eubalaena australis&rft_subject=BALEEN WHALES&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=ANIMALS/VERTEBRATES&rft_subject=MAMMALS&rft_subject=CETACEANS&rft_subject=Global / Oceans | Global / Oceans | Southern Ocean&rft.type=dataset&rft.language=English Access the data

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Creative Commons Attribution 4.0 International License
http://creativecommons.org/licenses/by/4.0/

Cite data as: Smith, J., & Double, M. (2022). 2021 Aerial survey data of southern right whales (Eubalaena australis) off southern Australia [Data set]. Institute for Marine and Antarctic Studies. https://doi.org/10.25959/WBGG-6J38

This dataset is hosted by the University of Tasmania, on behalf of the Australian Antarctic Data Centre and NESP Marine and Coastal Hub Project 1.27.

Data was sourced from the NESP Marine and Coastal Hub – the Marine and Coastal Hub is supported through funding from the Australian Government’s National Environmental Science Program (NESP), administered by the Department of Climate Change, Energy, the Environment and Water.

Access:

Open

Full description

Aerial surveys of southern right whales (Eubalaena australis) were undertaken off the southern Australian coast to monitor the recovery of this endangered species following extreme 19th and 20th Century commercial whaling. The aerial survey was undertaken in the coastal waters from Perth (Western Australia) to Ceduna (South Australia) between the 12th and 17th August 2021, to maintain the annual series of surveys and inform the long-term population trend. The maximum whale counts for each leg of the survey flights between Cape Leeuwin and Ceduna, and consisted of a total 643 southern right whales sighted across the survey area (270 cow-calf pairs and 103 unaccompanied whales). The subsequent population estimate for the Australian ‘south-western’ population is 2,549 whales, which represents the majority of the Australian population given the very low numbers in the ‘south-eastern’ subpopulation. The population long-term trend data is indicating recent years (from 2007) are showing greater inter-annual variation in whale counts. To evaluate the recovery of the southern right whale population, it will be critical to collect long-term data on the annual variability in whale numbers related to the non-annual female breeding cycle and identify possible impacts on this by short-term climate dynamics, longer-term climate change and/or anthropogenic threats.

Lineage

Maintenance and Update Frequency: none-planned

Statement: Photo quality will be variable and requires assessment prior to assimilation into photo-identification catalogue http://data.marinemammals.gov.au/arwpic

Notes

Credit
The data collections described in this record are funded by the Australian Government Department of Climate Change, Energy, the Environment and Water (DCCEEW) through the NESP Marine and Coastal Hub. In addition to NESP (DCCEEW) funding, this project is matched by an equivalent amount of in-kind support and co-investment from project partners and collaborators.

Purpose
Assessing the status and trend of Australia's southern right whale populations.

Data time period: 2021-08-12 to 2021-08-17

This dataset is part of a larger collection

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Subjects

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Other Information

(2021 field survey data [direct download])

url : https://data.imas.utas.edu.au/attachments/c5f8ecf3-7ff8-4fb3-b965-eb6ca29335d4/2021_NESP_MAC_1.26_SRW_aerial_survey_field_data.xlsx External Link

global : b85b2c7d-4631-477a-9217-2cae65f9cf0a

local : 00r4sry34

local : 0000-0001-9912-422X

local : 05e89k615

local : 0000-0002-7820-9491

local : 00r4sry34

local : 0000-0001-9912-422X

NESP MaC Project 1.26 - Relative abundance of the ‘western’ population of southern right whales from an aerial survey off southern Australia, 2021-2022 (Murdoch Uni)

doi : 10.71676/e750e73b DOI Link

Identifiers

DOI : 10.25959/WBGG-6J38
global : c5f8ecf3-7ff8-4fb3-b965-eb6ca29335d4