Killer whale (Orcinus orca)
Group formation: Matrifocal groups (size 4-15)
Size: males 6-10m, females 5-8m, calf 2.2m
Weight: males 5-6tons, females 3-4tons, calf 180kg
Age: males 30 (60)yrs, females 50 (80-103)yrs
Sexual maturity: males 15-20 yrs, females 15 yrs
Physical maturity: males 20-25 yrs, females 15 yrs
Gestation: 16-17mths, birth every 3-4 yrs, menopause around 40yrs of age
Diet: Marine mammals, some fish
Distribution: Toothed whale, largest dolphin, distributed all over the world.
Chile: Orcas are distribution all along the coast, but low in numbers, can be seen close to seal colonies or inside the channels and fjords in Aysen.
Population: min. 50 000
Conservation Status: Data Deficient ver 3.1, Pop. trend: unknown
Threats: whaling (Indonesia, Greenland), plastic pollution, man-made noise impacts (seismic surveys, military sonar), entanglement in fishing gear, over fishing