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Survey report for Vaquita Photographic Identification Research 2019
Lorenzo Rojas-Bracho, Barbara L. Taylor, Armando Jaramillo-Legorreta, Paula Olson, Diego Ruiz, Eva Hidalgo, Tim Gerrodette and Annette Henry
International Whaling Commission
2020
SC/68B/SM/08
Three weeks of effort to estimate the number of vaquitas in the Zero Tolerance Area took place between September 2 and October 27, 2019. Two ships (the Narval and either the Farley Mowat or the Sharpie) used experienced observers to find and track vaquitas with methods developed for the earlier effort to capture vaquitas in 2017. There were only 4 days when winds were low enough to sight and track vaquitas, and only 2 photographs were matched to previous efforts. Of the 7 sightings, there were no photographic matches within the 3 weeks. All but one sighting contained a smaller individual that could have been a calf. All individuals appeared in robust health.
