An overall dark grey or black in colour that can vary in respective populations, Pacific white-sided dolphins have greyish stripes under the dorsal fin that meet and broaden along the tailstock. The Pacific White-sided Dolphin is known for, and easily identified by, the large hooked/scythe shaped dorsal fin that is located approximately halfway down its back (Berta, 2015). The chin, throat and belly are creamy white. From 1990 to 1991, a study conducted by Richard C. Ferrero and William A. Walker revealed the vast majority of Pacific white-sided dolphins that fell victim to the drift nets were between the ages of 8.3 to 11 when they sexually matured.The Pacific white-sided dolphin is extremely active and mixes with many of the other North Pacific,The range of the Pacific white-sided dolphin arcs across the cool to temperate waters of the North Pacific. Light gray patches are seen on the sides and a further light gray stripe runs from above the eye to below … The.The species is an average-sized oceanic dolphin. Females weigh up to 150 kg (330 lb) and males 200 kg (440 lb) with males reaching 2.5 m (8.2 ft) and females 2.3 m (7.5 ft) in length. Females reach maturity at seven years. Among marine biologists, they are commonly called “lags” (a shortening of their genus). Their distinctive dorsal fins are tall, curved and bi-coloured with a black leading edge fading to grey, a colouring that is replicated across their large, rounded flippers. It is morphologically similar to the,Though both are traditionally placed in the genus,The Pacific white-sided dolphin has three colors. This species as a result can be classified very quickly by observers as soon as the dorsal fin breaks the surface of the water. Animals that live in such big social groups develop ways to keep in touch, with each dolphin identifying itself by a unique name-whistle. They seem to enjoy an encounter with a boat and seek out and travel with other species of dolphins, and even baleen whales. L. acutus is one of six oceanic dolphins in the genus Lagenorhynchus. Staying close helps, too. The beak, flippers, back, and dorsal fin are a dark gray.
Pacific white-sided dolphins usually tend to be larger than dusky dolphins.

Pacific white-sided dolphins, known for the distinct coloring that give them their name, are a playful and highly social marine mammal. The beak, flippers, back, and dorsal fin are a dark gray. White-sided dolphins are gregarious, often found in groups of up to several thousand individuals. They are also sometimes known as the “hookfin porpoise” because of their large, curved dorsal fin, though they are not technically porpoises. The chin, throat and belly are creamy white. The specific name acutus comes from the Latin for 'pointed' and refers to the sharply pointed dorsal fin. Members form a close-knit group and will often care for a sick or injured dolphin. The front fins Young dolphins communicate with a touch of a flipper as they swim beside adults.Studies conducted on Pacific white-sided dolphins, as well as,Left: High-jump during Pacific white-sided dolphin show at the.Commander Islands Nature and Biosphere Reserve.http://www.aquaticmammalsjournal.org/index.php?option=com_content&view=article&id=652:seasonal-resting-metabolic-rate-and-food-intake-of-captive-pacific-white-sided-dolphins-lagenorhynchus-obliquidens&catid=46&Itemid=157,10.2305/IUCN.UK.2012.RLTS.T11145A17876617.en,"Occurrence and Distribution of Pacific White-Sided Dolphins (,"Classification of Risso's and pacific white-sided dolphins using spectral properties of echolocation clicks","Spatio-temporal comparison of pacific white-sided dolphin echolocation click types",Тихоокеанский белобокий дельфин Sagmatias obliquidens Gill, 1865,"Pacific White-sided Dolphin and Dusky Dolphin",Voices in the Sea - Sounds of the Pacific white-sided Dolphin,https://en.wikipedia.org/w/index.php?title=Pacific_white-sided_dolphin&oldid=971303584,Creative Commons Attribution-ShareAlike License,This page was last edited on 5 August 2020, at 08:36.

However, the tendency of Pacific white-sided dolphins to approach boats complicates precise estimates via sampling.These dolphins keep close company. Description The Pacific white-sided dolphin was named by Smithsonian mammalogist Theodore Nicholas Gill in 1865. The chin, throat and belly are creamy white. Light gray patches are seen on the sides and a further light gray stripe runs from above the eye to below the dorsal fin, where it thickens along the tail stock. An overall dark grey or black in colour that can vary in respective populations, Pacific white-sided dolphins have greyish stripes under the dorsal fin that meet and broaden along the tailstock.