Whale Sharkジンベエザメ

Species Data

Classification

Orectolobiformes / Rhincodontidae Source

Size

Said to reach a maximum total length of 20 m; the most reliable record is a female of about 18.8 m that stranded in the Arabian Sea in 2001

Lifespan

Matures at about 30 years and is thought to live 60–70 years; some suggest a lifespan of 150 years

Diet

Filter feeder Filter feeder that consumes small crustaceans such as krill and their larvae, cephalopod larvae, small fish, and seaweed

Distribution

Migrates through tropical, subtropical, and warm temperate surface waters worldwide within about 30 degrees of the equator; in Japanese waters it appears from early summer through autumn. Source

Sources

ja.wikipedia.org en.wikipedia.org

Did You Know?

• Schools of sardines, tuna, and other fish often gather around whale sharks, which is why fishing communities in Japan have long regarded their presence as a sign of a good catch. Source
• Whale sharks spend about 95% of their time in the sunlit zone shallower than 200 m, but regularly dive below 500 m during the day into evening. Source

FAQ

Is the whale shark dangerous to humans?

No. Despite its enormous size, it is a filter feeder that eats plankton, krill, and small fish, posing no threat to swimmers or divers. Source

How long do whale sharks live?

They are estimated to mature around age 30 and can live 60-70 years, with some researchers suggesting a maximum lifespan of up to 150 years. Source

Why are whale sharks endangered?

Global numbers have declined by roughly 50% over the past 75 years, driven mainly by targeted fishing, bycatch, and vessel strikes, leading to an Endangered IUCN listing. Source

How many operating facilities are registered here?

Operating facilities registered on this site: Japan 5 Source

Books & gear

• Whale Shark book
• binoculars