Short-finned Pilot Whaleコビレゴンドウ
Globicephala macrorhynchusLC— Least Concern
The short-finned pilot whale is a large, deep-diving member of the dolphin family found in tropical and subtropical waters worldwide, known for chasing squid at depths exceeding 500 meters as one of the ocean's fastest deep-water hunters. It lives in tightly bonded, matriarch-led pods and is one of the few animals besides humans known to experience menopause, with females living for decades after their reproductive years end. Classified as Least Concern by the IUCN, with a global population estimated around 700,000.
Short-finned Pilot Whale (reference photo)
Species Data
Did You Know?
- Short-finned pilot whales regularly dive beyond 500 m and have been recorded diving as deep as 1,018 m, sustaining the dive for about 21 minutes while hunting squid. Source
- Pods are organized around a matrilineal hierarchy led by an elder female, and within groups of 10–30 individuals, females often outnumber males by roughly 8 to 1. Source
- Females stop reproducing around age 40 despite often living past 60, giving them a long post-reproductive lifespan similar to human menopause—a trait rare among animals. Source
Where to See This Species
1 facilities · 0 individuals
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
Conservation Story
Conservation Status
IUCNではLC(低懸念)です。深海性の習性もあり、個体群の継続調査が求められます。
Habitat
世界の熱帯・亜熱帯の深い沖合海域。
Threats
- 漁網への混獲
- 海中騒音
- 海洋汚染
Conservation & Breeding Efforts
- 座礁と分布情報の収集
- 混獲の低減
- 鯨類の生態教育
Sources
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FAQ
- How deep can short-finned pilot whales dive?
- They dive beyond 500 meters routinely and have been recorded reaching depths of 1,018 meters, staying submerged for about 21 minutes while pursuing squid. Source
- Do short-finned pilot whales go through menopause?
- Yes. Females typically stop reproducing around age 40 despite often living past 60, giving them a long post-reproductive lifespan—one of the few known examples of menopause-like biology outside humans. Source
- How are short-finned pilot whale pods structured?
- Pods of roughly 10–30 individuals are organized around a matrilineal hierarchy led by an elder female, with females typically outnumbering males by about 8 to 1. Source
Source: ja.wikipedia.org