TOOTHED or TOOTHLESS (BALEEN): Toothed
FRESHWATER, SALTERWATER or BRACKISH: Saltwater
HABITAT: Coastal and shelf waters off South America, southwest Africa and southern Australia.
LENGTH (maximum): 5-7 Ft
WEIGHT (maximum): 170-190 lbs
RELATIVE SPECIES: Peale’s dolphin, hourglass dolphin, White-sided dolphins, Hourglass dolphin
NEIGHBORING SPECIES: Peale’s dolphin, Hourglass dolphin
PREDATORS: Humans, killer Whales
THREATS: Accidental catch in nets, hunting by the Japanese and noise disturbance from vessels.
DIET: Anchovies, squid, small fish
MANNER OF FEEDING: A group of dolphins will herd a school of fish near the surface. At night they will rest on the bottom and prey on vertical traveling fish and cephalopods.
BEHAVIOR: Seen in groups of 15-100 and sometimes up to groups of 500. High energy. Display somersaults and body slams. Likes to follow boats and bow-ride. Often seen with other species of dolphins.
REPRODUCTION: Calves are born in the spring or summer. Gestation is 11-13 months.
LIFE SPAN: 35 years or more
- In New-Zealand dusky dolphins will swim with tourists during swim with wild dolphin programs.
- Knopf, Alfred A. Guide to Marine Mammals of the World.Random House. 2002