Deepwater Sharks Are Threatened by Demand for Liver Oil
Deepwater Sharks Are Threatened by Demand for Liver OilOne in seven species of deepwater sharks and rays is threatened with extinction because of the liver oil and meat trade and emerging fishing technologies that make it possible to catch deep-sea fishesBy David ShiffmanA bluntnose sixgill shark (Hexanchus griseus) off Puget Sound. The surging market for shark liver oil, found in products ranging from dietary supplements to cosmetics, is posing a major threat to deepwater shark species—those that dwell in the inky black…