
Fraser's dolphins are
stocky-looking, have a very short beak, and very small flippers and flukes. The
Fraser's dolphin's most distinctive feature is a wide, prominent black band
running from the face to the anus. There is also a flipper stripe starting at
the middle of the lower jaw. Fraser's dolphins probably get at least as large as
2.8 m (9 ft) with weights over 210 kg (460 lb). Little is known about this
species. Fraser's dolphins are often sighted mixed with other species, such as
melon-headed whales, Risso's dolphins, and spinner dolphins. When these dolphins
surface, they are very splashy. Fraser's dolphins eat mid-water fish, squid and
crustaceans. Ship-based surveys in the Gulf led to sightings of two large herds
(>100 individuals) of Fraser's dolphins (previously known to the Gulf from only
a mass stranding in the Florida Keys), as well as information previously
uncollected on sounds produced by these animals.
Description: Fraser's Dolphin is
robust and has small pointed flippers and dorsal fin. The cape is dark blue-grey
or grey-brown in color. The beak is short, dark on the upper jaw and around the
lips. The chin area, throat and belly are creamy white. Flippers are dark, and a
series of grey-black lines connect the flippers to the beak. A grey-cream line
stretches from melon to the flanks, separating the dorsal cape from a dark grey
to black lateral stripe that extends backward from the face. Adults measure
between 2m and 2.65m in length. Large animals can weigh around 200kg.
Recognition at sea: Fraser's Dolphins are most likely
to be confused with Common Dolphins and Striped Dolphins, both of which have
longer beaks and larger flippers and dorsal.
Habitat: Fraser's Dolphins prefer deep offshore waters
in tropical and warm temperate areas.
Food
& Feeding: Fraser's Dolphins take a wide variety of
fish, squid and crustaceans. It is thought they hunt at night.
Behavior: This species is normally found in herds of
at least one hundred, often socializing with other cetaceans. Although active at
the surface, they do not appear playful. Little else is known.
Longevity: Unknown.
Estimated Current Population: Unknown.
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