Animalia > Chordata > Mammalia > Cetacea > Delphinidae > Lagenorhynchus > Lagenorhynchus obliquidens

Lagenorhynchus obliquidens (Pacific White-sided Dolphin)

Synonyms: Delphinus longidens; Lagenorhynchus longidens; Lagenorhynchus ognevi
Language: Spanish

Wikipedia Abstract

The Pacific white-sided dolphin (Lagenorhynchus obliquidens) is a very active dolphin found in the cool to temperate waters of the North Pacific Ocean.
View Wikipedia Record: Lagenorhynchus obliquidens

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 7.58
EDGE Score: 2.15


Adult Weight [2]  227.08 lbs (103.00 kg)
Birth Weight [2]  30.86 lbs (14.00 kg)
Female Maturity [2]  10 years 6 months
Diet [1]  Carnivore
Gestation [2]  10 months 20 days
Litter Size [2]  1
Maximum Longevity [2]  46 years
Migration [1]  Intraoceanic
Water Biome [1]  Coastal

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
California Coast Ranges Biosphere Reserve 153447 California, United States  
Channel Islands National Marine Sanctuary   California, United States
Channel Islands National Park II 139010 California, United States
Pacific Rim National Park Reserve II 137900 British Columbia, Canada
Point Reyes National Seashore II 27068 California, United States
Redwood National Park II 77867 California, United States
Reserva de la Biosfera El Vizcaino Biosphere Reserve VI 6176727 Mexico  

Prey / Diet

Clupea harengus (Yawling)[3]
Cololabis saira (Skipper)[3]
Engraulis japonicus (Japanese anchovy)[4]
Engraulis mordax (Californian anchoveta)[3]
Mallotus villosus (Capelin)[3]
Merluccius productus (Whiting)[3]
Sardinops sagax (Australian pilchard)[3]
Scomber japonicus (Striped mackerel)[4]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Alopias vulpinus (Zorro thresher shark)4
Amblyraja hyperborea (Arctic skate)2
Anoplopoma fimbria (Skil)1
Atheresthes stomias (Turbot)1
Balaenoptera acutorostrata (Minke Whale)2
Balaenoptera borealis (Sei Whale)2
Balaenoptera edeni (Bryde's whale)1
Balaenoptera physalus (Fin Whale)1
Bathyraja trachura (Roughtail skate)1
Brachyramphus marmoratus (Marbled Murrelet)2
Callorhinus ursinus (Northern Fur Seal)2
Cerorhinca monocerata (Rhinoceros Auklet)3
Clupea pallasii pallasii (Pacific herring)1
Delphinapterus leucas (Beluga)1
Delphinus delphis (Short-beaked Saddleback Dolphin)3
Eschrichtius robustus (Gray Whale)1
Fratercula cirrhata (Tufted Puffin)4
Fratercula corniculata (Horned Puffin)1
Fulmarus glacialis (Northern Fulmar)1
Gadus macrocephalus (Pacific cod)2
Globicephala melas (Long-finned Pilot Whale)1
Hexagrammos stelleri (Greenling)1
Hippoglossus stenolepis (Pacific halibut)1
Istiophorus platypterus (Atlantic sailfish)1
Kajikia audax (Stripey)3
Katsuwonus pelamis (White bonito)1
Lagenorhynchus obscurus (Dusky Dolphin)1
Lamna ditropis (Salmon shark)3
Larus argentatus (Herring Gull)1
Larus canus (Mew Gull)1
Larus glaucescens (Glaucous-winged Gull)1
Larus occidentalis (Western Gull)3
Leptocottus armatus (Cabezon)1
Lissodelphis borealis (Northern Right Whale Dolphin)2
Lutjanus guttatus (mutton snapper)1
Megaptera novaeangliae (Humpback Whale)1
Mirounga angustirostris (Northern Elephant Seal)2
Myotis vivesi (fish-eating bat)1
Neophocaena phocaenoides (Finless Porpoise)1
Occidentarius platypogon (Cominate sea catfish)1
Ophiodon elongatus (Lingcod)1
Orcinus orca (Killer Whale)2
Phalacrocorax auritus (Double-crested Cormorant)1
Phoca largha (Spotted Seal)1
Phoca vitulina (Harbor Seal)1
Phocoena phocoena (Harbor Porpoise)3
Phocoenoides dalli (Dall's Porpoise)2
Physeter macrocephalus (Sperm Whale)1
Prionace glauca (Tribon blou)2
Puffinus griseus (Sooty Shearwater)3
Puffinus opisthomelas (Black-vented Shearwater)2
Raja rhina (Longnose skate)1
Reinhardtius hippoglossoides (Turbot)1
Rhizoprionodon longurio (Pacific sharp-nose shark)1
Rissa tridactyla (Black-legged Kittiwake)1
Sarda chiliensis (bonite du pacifique oriental)1
Sebastes caurinus (Copper rockfish)1
Seriola rivoliana (Pacific amberjack)1
Seriphus politus (Drum)1
Sphyrna zygaena (Smooth hammerhead shark)1
Squalus acanthias (Common spiny)1
Stenella attenuata (Pantropical Spotted Dolphin)2
Stercorarius parasiticus (Parasitic Jaeger)1
Sula leucogaster (Brown Booby)1
Sula nebouxii (Blue-footed Booby)2
Theragra chalcogramma (Whiting)3
Thunnus alalunga (longfinned albacore)1
Thunnus albacares (Yellowfin-tuna)1
Thunnus thynnus (horse mackerel)2
Trichiurus lepturus (Atlantic Cutlassfish)1
Tursiops truncatus (Bottlenosed Dolphin)2
Uria aalge (Common Murre)3
Uria lomvia (Thick-billed Murre)1
Zalophus californianus (California Sealion)3
Zalophus wollebaeki (Galapagos Sea Lion)1
Zapteryx exasperata (Striped guitarfish)2


Parasitized by 
Anisakis simplex[5]
Diphyllobothrium fuhrmanni[5]
Hadwenius seymouri[5]
Nasitrema globicephalae[5]
Nasitrema lagenorhynchus <Unverified Name>[5]
Odhneriella elongata[5]
Odhneriella gondo <Unverified Name>[5]
Strobilocephalus triangularis[5]

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
John G. Shedd Aquarium
Kamogawa Sea World
Vancouver Aquarium Marine Science Ctr

Range Map

East Pacific; Indo-West Pacific;



Attributes / relations provided by 1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at 2de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774 3Occurrence, photo-identification and prey of Pacific white-sided dolphins (Lagenorhyncus obliquidens) in the Broughton Archipelago, Canada 1984-1998, Alexandra Morton, Marine Mammal Science Vol. 16, no. 1, pp. 80-93. Jan 2000 4Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979 5Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
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