A capture-recapture abundance estimate for Antarctic blue whales is published

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Photo-identification data collected between the 2003/04 and 2018/19 seasons yields a POPAN superpopulation estimate of 3,506 whales (95% CI 2,107-5,832), with abundance in the final study year estimated at 1,817 (95% CI lower bound 714). The confidence intervals are wide because the sample is small; that width is the honest state of knowledge about the subspecies, not a defect of the method.

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Blue Whale MigrationOcean

Evidence · 1

Capture-recapture estimates of Antarctic blue whale abundance and population growth rate

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Antarctic Blue Whale (B. m. intermedia)concerns
Photo-Identification Cataloguingconcerns
IWC Southern Ocean Research Partnershipconcerns

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