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SC/69A/SH/10
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Resource ID
20054
Access
Open
Document Number
SC/69A/SH/10
Full Title
Report of the southern right whale aerial surveys
Author
Els Vermeulen, Christopher Wilkinson, Loraine Shuttleworth
Authors Summary
This document reports on the 2022 annual southern right whale aerial surveys conducted off the coast of South Africa. During a total of 21hs and 41min of flying time, 304 cow-calf pairs and 50 unaccompanied adults were counted, of which 329 were photographed for subsequent identification. These numbers remain low compared to numbers observed prior to 2009. In total, 277 unique adult female southern right whales could be identified of which 145 could be matched to previously known females giving results on 144 new inter-calving intervals. Results showed that most cows calving in 2022 had a 4-year (19%), and either a 3- or 5-year (13% each) calving interval.
Publisher
IWC
Publication Year
2023