IUCN threat status:

Least Concern (LC)


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Habitat and Ecology

Habitat and Ecology
Found on continental and insular shelves close inshore, on or near the bottom (Compagno et al. 2005). Often found in estuaries or shallow bays, on sand, seaweed and eel-grass flats (Nakabo 2002). Tolerant of reduced salinities. An aplacental viviparous species giving birth to 10-24 pups per litter.

Feeds on small fishes and invertebrates and grows to a maximum total length of 150 cm (Compagno et al. 2005). In the coastal water of Izu Peninsula, Japan, males mature at 93-103 cm TL and 5-6 years old, and females at 106-117 cm TL and 6-7 years old, respectively. The species is born in 18-20cm TL. Longevity is 15 years in males and 18 years in females (S. Tanaka unpublished data).

  • Marine


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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