Moray Eelウツボ

Gymnothorax kidakoLC— Least Concern

The kidako moray (Gymnothorax kidako), known in Japan as utsubo, is a large moray eel reaching up to about 91 cm long, found across the western Pacific from Taiwan to Japan on coral reefs, lagoons, and rocky coasts down to roughly 400 m. Unusually for a moray, it is more active during the day than at night, hunting fish, octopus, and squid with sharp canine-like teeth and a second set of pharyngeal jaws in its throat. It is eaten as food in parts of Japan and is listed as Least Concern by the IUCN.

Moray Eel (reference photo)
Photo: User:rydia / CC BY-SA 2.5 / Source / cropped

Species Data

Classification
Anguilliformes / Muraenidae Source
Size
Maximum total length about 91 cm
Diet
Piscivore Carnivorous fish that preys on fish, cephalopods such as octopus and squid, and crustaceans
Activity
Diurnal (most moray eels are nocturnal, but this species is unusual in being active by day)
Distribution
Found in the western Pacific from Taiwan to Japan, inhabiting coral reefs, lagoons, and rocky coasts, and occasionally deeper waters down to about 400 m. Source

Did You Know?

  • It has sharp, canine-like teeth at the front of its upper jaw and a second set of jaws, called pharyngeal jaws, in its throat used to pull prey inward. Source
  • While most morays are nocturnal, this species is unusually active during the day. Source
  • In Japan it is eaten as food in some regions, prepared as sashimi or fried dishes. Source

Where to See This Species

Operating facilities registered on this site: Japan 8

Kagoshima City AquariumKagoshimaFrom Kagoshima-Chuo Station, take the tram (Route 2) to the Suizokukan-guchi stop and walk 8 minutes.

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Sunshine AquariumTokyoFrom Ikebukuro Station (Exit 35), walk along Sunshine 60 Street.

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NOTOJIMA AQUARIUMIshikawaThe nearest station is Wakura-Onsen Station.

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Murotohaikou SuizokukanKochiOpened in 2018

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Shimoda AquariumShizuokaOpened in 1967

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Osaka Aquarium KaiyukanOsakaOpened in 1990

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Katsurahama AquariumKochiOpened in 1931

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Nagasakipengin SuizokukanNagasakiOpened in 2001

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Latest news

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Conservation Story

Conservation Status

Least Concern (LC)

Sources

ja.wikipedia.org en.wikipedia.org

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FAQ

What does the kidako moray eat?
It is piscivorous, preying on fish along with octopus and squid. Source
Is the kidako moray dangerous to divers?
Attacks on humans are rare and typically occur only when a diver puts a hand into a reef crevice where the eel is hiding. Source
Is the kidako moray active during the day or at night?
Unlike most moray eels, which are nocturnal, this species is unusually active during the daytime. Source
How many operating facilities are registered here?
Operating facilities registered on this site: Japan 8 Source

Books & gear

Source: ja.wikipedia.org en.wikipedia.org