Western Pacific roughy (Hoplostethus japonicus) is a ray-finned fish of the family Trachichthyidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 12.9 cm. It occurs at depths between 336 and 605 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
Physical description for Western Pacific roughy is currently being compiled.
Behavioural data for Western Pacific roughy is currently being reviewed.
Marine; bathypelagic; depth range 336 - 605 m . Deep-water Northwest Pacific: along the southern coast of Japan (south of Tokyo), in Sagami and Suruga Bays and in the Sea of Japan (Ref.
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