Blainville’s Beaked Whale (Mesoplodon densirostris)
Group formation: Small groups (mother-calf pair or groups of 3-7 with lead male)
Size: 4.3 – 4.8m
Weight: ca. 1 t
Age: 23+ years
Sexual maturity: 8-11 yrs
Gestation: 12 mths, with 3-4 yrs in between
Weaning: 12 months
Diet: Deepwater squid and fish.
Predators: killer whales, sharks, especially cookie cutter sharks.
Distribution: Worldwide tropical to warm temperate waters.
Raja Ampat: might be a local population but this is not confirmed yet. There is one sighting (2020) and one live stranding (2018).
Population size: Unknown
Conservation Status: Data Deficient ver 3.1, Pop. trend: unknown
Threats: Chemical and plastic pollution, man-made noise impacts (seismic surveys, military sonar).