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White-beaked Dolphin

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White-beaked Dolphin
Conservation status: Lower risk
A group of White-beaked Dolphin surfacing, Snaefellsnes peninsula, Iceland
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Subclass:Eutheria
Order:Cetacea
Suborder:Odontoceti
Family:Delphinidae
Genus:Lagenorhynchus
Species:L. albirostris
Binomial name
Lagenorhynchus albirostris
(Gray, 1846)
White-beaked Dolphin range
White-beaked Dolphin range

The White-beaked Dolphin (Lagenorhynchus albirostris) is a marine mammal belonging to the family Delphinidae (dolphins) in the suborder of the Odontoceti, or toothed whales. The White-beaked Dolphin is one of the larger dolphins (1.1-1.2m at birth growing to around 3 metres at adulthood). The dolphin is characterized by its short thick creamy-white beak and very falcate (curved) dorsal fin. The White-beaked Dolphin is endemic to the North Atlantic Ocean and is found in a band stretching across the ocean from Cape Cod, the mouth of the St. Lawrence River and southern Greenland in the west, around Iceland in the centre and across in the west from northern France to Svalbard. The White-beaked Dolphin is not as well adapted to Arctic conditions as the beluga or narwhal The dolphin may easily be mis-identified as the Atlantic White-sided Dolphin although the White-beaked is commonly found further north. The White-beaked Dolphin is also typically larger and does not have yellow streaks on its side. The population, breeding pattern and life expectancy of the dolphin are all unknown although most sources estimate several hundred thousand individuals, more densely populated in the eastern North Atlantic than the west.

White-beaked Dolphins are acrobatic and social animals. They will frequently ride on the bow-wave of high-speed boats and jump clear of the sea's surface. The White-beaked Dolphin is a social feeder and has frequently been observed feeding with Orca and Fin and Humpback Whales as well as other dolphin species.

References

  • Whales Dolphins and Porpoises, Mark Carwardine, Dorling Kindersley Handbooks, ISBN 0751327816
  • National Audubon Society Guide to Marine Mammals of the World, Reeves, Stewart, Clapham and Powell, ISBN 0375411410da:Hvidnæse

de:Weißschnauzendelfin nl:Witsnuitdolfijn

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