Frequency in the detection index of the Balaenoptera borealis sighted during November and December 2019 and January 2020. The detection rate was calculated based on the effective sightings per day for 10 days standardized by the sampling effort. The numbers above and within each bar indicate the number of total sightings and the sampling effort in each date range, respectively.

 
 
  Part of: Cisterna-Concha A, Calderón-Quirgas C, Silva-Andrades F, Muñoz R, Norambuena HV (2023) Reencounter with the past: occurrence of sei whale (Balaenoptera borealis) in an old hunting area in the south-eastern Pacific Ocean. Nature Conservation 51: 1-12. https://doi.org/10.3897/natureconservation.51.95690