Don K. Ljungblad

Unique calls of the pygmy blue whale (Balaenoptera musculus brevicauda) recorded off the coast of Chile during the SOWER 1997/98 programme

Don K. Ljungblad, Fannie W. Shabangu

The 1997/98 International Whaling Commission Southern Ocean Whale and Ecosystem Research (IWC‐SOWER) cruise was the third in a series of cruises undertaken to evaluate scientific techniques for differentiating between ‘true’ blue whales (Balaenoptera musculus) and pygmy blue whales (B. m. brevicauda). Data …

Afrique du Sud (code pays fourni par la source)

Overview of the SOWER cruise circumpolar acoustic survey data and analyses of Antarctic blue whale calls

Fannie W. Shabangu, Kathleen M. Stafford, Ken Findlay, Shannon Rankin et autres

The International Whaling Commission (IWC) carried out blue whale research within its annual Southern Ocean Whale and Ecosystem Research (SOWER) cruises between 1996 and 2010. Over 700 sonobuoys were deployed to record blue whale vocalisations during 11 Antarctic and three low‐latitude blue …

Afrique du Sud, us, au (code pays fourni par la source)

The abundance of blue whales on the Madagascar Plateau, December 1996

Peter B. Best, Rebecca A Rademeyer, Chris Burton, Don K. Ljungblad et autres

As part of the International Whaling Commission’s SOWER blue whale research programme, two sighting vessels, the Shonan Maru and the Shonan Maru No.2, surveyed the Madagascar Plateau between 25° and 35°S, 40° and 45°E, in December 1996. A total of 95 sightings …

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Vocalisations of Antarctic blue whales, Balaenoptera musculus intermedia, recorded during the 2001/2002 and 2002/2003 IWC/SOWER circumpolar cruises, Area V, Antarctica

Shannon Rankin, Don K. Ljungblad, Chris W. Clark, Hidehiro Kato

Blue whale vocalisations recorded during the 2001/2002 and 2002/2003 International Whaling Commission-Southern Ocean Whale and Ecosystem Research (IWC/SOWER) cruises were analysed to determine the feasibility of using acoustic recordings for sub-species identification of the Antarctic blue whale (Balaenoptera musculus intermedia) and the …

Past and present distribution, densities and movements of blue whales Balaenoptera musculus in the Southern Hemisphere and northern Indian Ocean

Trevor A. Branch, Kathleen M. Stafford, Daniel M. Palacios, Cherry Allison et autres

ABSTRACT Blue whale locations in the Southern Hemisphere and northern Indian Ocean were obtained from catches (303 239), sightings (4383 records of ≥8058 whales), strandings (103), Discovery marks (2191) and recoveries (95), and acoustic recordings. Sighting surveys included 7 480 450 km …

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Vocalizations of blue whales in the Antarctic: Implications for the use of passive acoustics for population studies on baleen whales

Shannon Rankin, Don K. Ljungblad, Chris W. Clark, Hidehiro Kato

Stereotypical calls of baleen whales can be a diagnostic field characteristic for determining species and stocks. Repeated series of these calls may be used for long-term population studies using passive acoustics. Vocalizations were recorded from 15 groups of blue whales (consisting of …

us, jp (code pays fourni par la source)

Discovery of a blue whale feeding and nursing ground in southern Chile

Rodrigo Hucke‐Gaete, Layla P. Osman, Carlos A. Moreno, Ken Findlay et autres

After the extensive exploitation that reduced the Southern Hemisphere blue whale (Balaenoptera musculus) populations to less than 3% of its original numbers, studies on its recovery have been compounded by the inaccessibility of most populations and the extensive migrations between low and …

cl, Afrique du Sud (code pays fourni par la source)

SOUNDS RECORDED FROM BAIRD'S BEAKED WHALE, BERARDIUS BAIRDIL

Steve Dawson, Jay P. Barlow, Don K. Ljungblad

nz, us (code pays fourni par la source)