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19095
Open
SC/68C/SH/22Rev01
Progress report on Southern Hemisphere Blue Whale Catalogue: Period May 2020-March 2021
Barbara Galletti Vernazzani, Paula A. Olson, Chandra Salgado-Kent
IWC
2021
Some edits. The Southern Hemisphere Blue Whale Catalogue has a total of 2189 individual blue whale photo-identifications (photo-IDs) that include regions off Antarctica, Chile, Peru, Ecuador-Galapagos, Eastern Tropical Pacific (ETP), Australia, Timor-Leste, New Zealand, southern Africa, Madagascar and Sri Lanka. From May 2020 to March 2021, new collections of photo-identifications (+416 IDs) have been received from areas off Chile, New Zealand, Timor Leste, Sri Lanka and the Southern Ocean. There are considerable reflecting the continual contributions of blue whale identifications over the years. Photo comparisons from within the Southeast Pacific and ETP with collection received up to March 2020 have also been completed. One match between southern Chile and ETP provides evidence of migratory movements and matches only within southern Chile and within northern Chile, revealing strong site fidelity to feeding areas. Datasets from Australia and Chile are being prepared to be used for regional blue whale assessments.
