IUCN Red List Assessment
Red List Category Year Assessed
Data Deficient Red List Criteria Version
McCormack, C. & Tanaka, S. Reviewer/s
Valenti, S.V., Gibson, C.G. & Fowler, S.L. (Shark Red List Authority) Contributor/s Justification
The Japanese Velvet Dogfish (Zameus ichiharai) is a deepwater dogfish known only from Suruga Bay, Honshu, Japan, on the slope at 450-830 m depth. Very little is known of its biology, however, other deepwater squaloids have proved vulnerable to population collapse from overfishing (directed or bycatch) due to their limited life history characteristics. A longline fishery currently targets deepwater sharks in Suruga Bay and offshore trawlers operate within the species depth range off Japan. There are no species-specific bycatch data available to determine whether this species is taken. This species is currently assessed as Data Deficient, due to a total lack of information on population trends and capture in fisheries, despite concern that deepwater fisheries operate within its restricted known range. The species may have limiting life history characteristics, similar to other deepwater shark species, thus will not be sufficiently fecund to withstand high levels of exploitation. Reassessment should be a priority as soon as information becomes available.