No.0121In residence
Ichiko
いちこ
WalrusOdobenus rosmarus
- Sex
- Female
- Born
- April 15, 2024
VU— Vulnerable
Walrusセイウチ
Odobenus rosmarusVU— Vulnerable
The walrus is a large pinniped of Arctic and subarctic waters, instantly recognizable by its long tusks, thick whiskers, and massive bulk. It forages mainly for bivalve mollusks on the seafloor, using sensitive whiskers to locate prey, and gathers in huge seasonal groups on sea ice or coastal haul-outs. The IUCN lists the walrus as Vulnerable, as shrinking Arctic sea ice increasingly limits its access to resting and feeding habitat.
Walrus (reference photo)
Species Data
Did You Know?
- The tusks are elongated upper canines that grow throughout life, reaching up to a meter in males, and are used to haul out onto ice and maintain breathing holes. Source
- It has 400 to 700 whiskers, sensitive enough to detect objects as small as 2 to 3 millimeters on the seafloor. Source
- Its blubber layer can reach up to 15 cm thick, insulating it against the frigid waters of its Arctic habitat. Source
Where to See This Species
8 facilities · 4 individuals
Toba AquariumMieOpened in 1955
在籍個体を確認 Source
No.0122In residence
Tsurara
ツララ
WalrusOdobenus rosmarus
- Sex
- Female
- Born
- May 31, 2009
VU— Vulnerable
伊勢シーパラダイス (Iseshiparadaisu)MieOpened in 1966
在籍個体を確認 Source
小樽水族館 (Otaru Suizokukan)HokkaidoOpened in 1958
オス「ウチオ」・メス「ウーリャ」の2頭を展示。冬季は展示を休止する期間がある。 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。
「セイウチの海」でベーリング海東部・ラウンド島を再現した展示。毎日12時・14時にフィーディングタイムを実施。 Source
横浜・八景島シーパラダイス (Yokohamahakkeijimashiparadaisu)Kanagawa
オス「セイタ」を展示。1日約30kgの給餌が行われている。 Source
ふくしま海洋科学館 (Fukushimakaiyoukagakukan)FukushimaOpened in 2000
ふくしま海洋科学館の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
南知多ビーチランド (Minamichitabichi Land)AichiOpened in 1980
南知多ビーチランドのWikipedia記事に飼育種として記載 Source
- 【セイウチ】かなり繊細に手を使うタイプです（伊勢シーパラダイス／水族館）
- Hello！セイウチのそら
- 天才の考えることは…
- 《鳥羽水族館》セイウチ「ポウ」ならだいじょうぶいでしょー✌🏻🤎 #鳥羽水族館 #おつかれsummer #animals #動物 #セイウチ
- おはよう
- 《鳥羽水族館》チャンネル登録者数100万人を目指します❗️✨チャンネル登録してね❤️🔥 #鳥羽水族館 #youtube #100万人 #チャンネル登録お願いします #セイウチ
Source links to official sites, official YouTube channels, and news aggregators such as Zoo Ring. Visit the publisher for the full item.
Conservation Story
Conservation Status
IUCNレッドリストでは危急(VU)に分類。大西洋亜種はかつての乱獲でほぼ絶滅寸前まで追い込まれた歴史を持つ。
Habitat
北極海および周辺の亜寒帯海域の氷上・沿岸域。
Threats
- 気候変動による海氷の減少・薄氷化
- 採餌場近くの休息地(氷上)の減少による栄養ストレス
- 船舶の往来や海底での攪乱
- 過去の商業捕獲による個体群の減少
Conservation & Breeding Efforts
- 商業目的での捕獲の全面禁止
- ロシア・米国・カナダ・グリーンランドでの先住民による伝統的狩猟の資源管理下での許可
- 個体群モニタリングと生息地保護の国際協力
Sources
Support Conservation
A visit is a small, positive way to support the daily lives of the animals you care about.
- Visit
- A visit itself helps support the facility.
- Animal Supporter Programs & Giving
- Find ways to support the facility through its official website.
- Furusato Nozei
- Municipally run facilities may share official guidance for this Japanese hometown-tax program.
Individuals Remembered
No.0123In memoriam
Kuu
クウ
WalrusOdobenus rosmarus
Toba Aquarium
- Sex
- Female
- Born
- Unknown
VU— Vulnerable
FAQ
- What are walrus tusks used for?
- Their tusks, which are elongated canine teeth that grow throughout life, are used mainly to help haul the animal's bulk out onto ice and to maintain breathing holes, and also play a role in social displays. Source
- What do walruses eat?
- They feed mainly on bivalve mollusks such as clams found in seafloor sediment, using their sensitive whiskers to locate prey and suction to extract it from the shell. Source
- Why are walruses considered vulnerable?
- Shrinking and thinning Arctic sea ice reduces the resting habitat walruses need near their feeding grounds, increasing nutritional stress, particularly on calves. Source
Source: otaru-aq.jp www.kamogawa-seaworld.jp www.seaparadise.co.jp www.iucnredlist.org