Humpback Activity

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  • 8/12/2019 Humpback Activity

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    LOCATION AND ESTIMATED PERIOD OFHUMPBACK WHALE ACTIVITY IN WA T I M O R S E A

    I N D I A N

    O C E A N

    50 0 100 200 300 KILOMETRES400

    Camden Sound - Resting/milling area/calving areaExmouth Gulf - Resting area with calvesShark Bay - Resting area with calvesGeographe Bay - Resting area with calves

    ALBERS EQUAL AREA PROJECTION WITH STANDARD PARALLELS 1730'S AND 3130'S

    This map has been compiled from various data sources received from a

    number of agencies. No responsibility is accepted for any error or omission.

    C Western Australia 2003

    I N D I A N

    O C E A N

    ALBANY

    Lancelin

    PERTH

    MANDURAH

    BUNBURY

    BUSSELTON

    Augusta

    Walpole Denmark

    GERALDTON

    Exmouth

    CARNARVON

    MEEKATHARRA

    PORT HEDLAND

    DAMPIER

    KARRATHA ROEBOURNE

    KALGOORLIE

    ESPERANCE

    LEONORA

    DERBY

    BROOME

    WYNDHAM

    Eucla

    FREMANTLEKWINANA

    MT MAGNET

    The periods for resting and calving shown are estimated peak migration periods. Actual timingof annual migration may vary by as much as 3 weeks from year to year due to food availability inthe Antarctic.

    The major calving ground identified is situated in the Kimberly region - Camden Sound.

    Humpback whales can also be expected to be encountered outside the shown migratory pathswhich are representative only of the main migratory body during peak season at each area.(ref. Jenner et al 2001)

    Humpback_activity_col.alb

    North Bound Peak

    South Bound Peak

    South Bound Cow/Calf Peak

    30 APRIL 2003

    Jurien Bay

    200m

    200m

    200m

    200m

    200m500m

    500m

    500m

    500m

    500m

    A

    USTRALIA

    SOUTH

    NORT

    HERN

    TERRITORY

    CAMDEN SOUND

    Resting/Milling/Calving Area

    EXMOUTH GULF

    Resting area with Calves

    SHARK BAY

    Resting area with Calves

    GEOGRAPHE BAY

    Resting area with Calves

    31

    28

    25

    22

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    June July Aug Sept Oct NovMay

    Migration RouteCalving

    Peak Northbound MigrationThe northern migration extends

    further offshore and lies within the

    400m bathymetry.

    Peak Southbound MigrationThe southbound migration is

    generally closer to shore, mostly

    within the 200m bathymetry.

    Jurien Bay to Carnarvon

    Geographe Bay to Jurien Bay

    Carnarvon to NW Cape

    NW Cape to Port Hedland

    Port Hedland to Broome

    Broome to Campden Sound

    (Megaptera novaeangliae) The most recognised great whale species.Notable for their long flippers, complex 'songs' and frequent aerial behaviours.Length 14-18 metres.

    S O U T H E R N O C E A N