Pacific White-sided Dolphinカマイルカ

Lagenorhynchus obliquidensLC— Least Concern

The Pacific white-sided dolphin is a highly social, acrobatic dolphin of the cool-to-temperate North Pacific, ranging from the South China Sea to the Bering Sea. It typically travels in groups of around 90 individuals, though aggregations of thousands have been recorded, and each dolphin appears to carry a unique signature whistle for identification. The species is common and classified as Least Concern by the IUCN.

Pacific White-sided Dolphin (reference photo)
Photo: The original uploader was Leefon at English Wikipedia. / CC BY-SA 3.0 / Source / cropped

Species Data

Classification
Artiodactyla / Delphinidae Source
Distribution
Inhabits cool to temperate waters of the North Pacific, from the South China Sea and Baja California north to the Bering Sea, including the Sea of Japan and Sea of Okhotsk. Source

Did You Know?

  • Groups typically number around 90 individuals, but aggregations of more than 3,000 dolphins have been observed. Source
  • Each dolphin is thought to have a unique signature whistle used for individual identification within the group. Source
  • Highly active and often approaching boats, this species is known for acrobatic displays including leaps and somersaults. Source

Where to See This Species

14 facilities · 0 individuals

How to tell Dolphins, Porpoises, and Belugas apart →

アドベンチャーワールド (Adobencha World)WakayamaOpened in 1978

アドベンチャーワールドのWikipedia記事に飼育種として記載 Source

のとじま臨海公園水族館 (Notojimarinkai Kouen Suizokukan)Ishikawa最寄り駅は和倉温泉駅。

のとじま臨海公園水族館のWikipedia記事に飼育種として記載 Source

マクセル アクアパーク品川 (Makuseruakua Park Shinagawa)Tokyo

マクセル アクアパーク品川のWikipedia記事に飼育種として記載 Source

マリンワールド海の中道 (Marin World Uminonakamichi)FukuokaJR博多駅から鹿児島本線で香椎駅まで11分、JR香椎線（西戸崎行き）に乗り換え「海ノ中道駅」まで20分。

マリンワールド海の中道のWikipedia記事に飼育種として記載 Source

越前松島水族館 (Echizenmatsushima Suizokukan)FukuiOpened in 1959

越前松島水族館のWikipedia記事に飼育種として記載 Source

下田海中水族館 (Shimodakaichuu Suizokukan)ShizuokaOpened in 1967

下田海中水族館のWikipedia記事に飼育種として記載 Source

Osaka Aquarium KaiyukanOsakaOpened in 1990

海遊館のWikipedia記事に飼育種として記載 Source

Kamogawa Sea WorldChiba東京駅から特急わかしおで約2時間、JR「安房鴨川」駅下車後、無料送迎バス（西口バス停発）で約10分。

鴨川シーワールドのWikipedia記事に飼育種として記載 Source

江の島水族館 (Enoshima Suizokukan)KanagawaOpened in 1954

江の島水族館のWikipedia記事に飼育種として記載 Source

城崎マリンワールド (Kinosakimarin World)HyogoJR城崎温泉駅から全但バスで約10分「日和山（マリンワールド）」バス停下車。

城崎マリンワールドのWikipedia記事に飼育種として記載 Source

新江ノ島水族館 (Shinenoshima Suizokukan)KanagawaOpened in 2004

新江ノ島水族館のWikipedia記事に飼育種として記載 Source

青森県営浅虫水族館 (Aomorikeneiasamushi Suizokukan)AomoriOpened in 1983

青森県営浅虫水族館のWikipedia記事に飼育種として記載 Source

Port of Nagoya Public AquariumAichi地下鉄名港線「名古屋港」駅3番出口から徒歩5分（東山線「栄」駅または名鉄線・JR線「金山」駅で名港線に乗り換え）。

名古屋港水族館のWikipedia記事に飼育種として記載 Source

新潟市水族館マリンピア日本海 (Niigatashi Suizokukan Marinpianihonkai)NiigataOpened in 1990

カマイルカのWikipedia記事に飼育施設として記載 Source

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Conservation Story

Conservation Status

IUCNではLC（低懸念）です。海洋環境と漁業による影響を継続して把握する必要があります。

Habitat

北太平洋の沖合から沿岸の温帯・亜寒帯海域。

Threats

  • 漁網への混獲
  • 海洋汚染
  • 餌資源の変動

Conservation & Breeding Efforts

  • 個体群と混獲のモニタリング
  • 海洋環境の保全
  • 水族館での生態教育

Sources

ja.wikipedia.org

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FAQ

How big are Pacific white-sided dolphin pods?
Groups typically number around 90 individuals, though gatherings of more than 3,000 dolphins have occasionally been observed. Source
What do Pacific white-sided dolphins eat?
They feed mainly on schooling fish such as anchovies, herring, and salmon, along with squid. Source
Are Pacific white-sided dolphins found near Japan?
Yes. Their range includes the Sea of Japan and Sea of Okhotsk as part of a broader distribution across the cool waters of the North Pacific. Source

Source: ja.wikipedia.org