Acoustic monitoring
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new insights into blue whale behaviour
Antarctic blue whales tend to call more at night and are recorded during the austral winter - the breeding time! Whereas the Australian pygmy blue whales are vocally active later in the day and recorded when food productivity is at its peak.
It seems from our research - both whale species are in Southern Australia for very different reasons. This study also found that in some years, Antarctic blue whales, did not return to their krill-rich Antarctic feeding grounds in the summer, as we'd expect. |
