The High-fin Dogfish is a little-known deepwater shark found 800-1000 metres deep in the northwest Pacific Ocean, off the Emperor Seamount Chain east of Japan and the Kuril Islands.
Only 21 specimens have been collected of the High-fin Dogshark, so information is quite limited.
Biology and Reproduction
This species is known to reach at least 63.6 cm in total length, with males maturing at 52 cm and females at 53 cm. Reproduction is ovoviviparous. One pregnant female was found to have 10 pups in her litter and each pup is estimated to be eight to nine cm long at birth.
The High-fin Dogfish diet consists of bony fishes and is harmless to humans.
Conservation and Tourism
This species may be vulnerable to deep-sea trawl and longline fisheries and any bycatch is of concern given their limited range.
More data is required to determine whether this species is captured in fisheries operating throughout its range and in order for any conservation efforts to be taken into action.
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