Bass, Chilean Sea
Patagonian Toothfish, more commonly known as Chilean Sea Bass, are widely distributed in the Southern Hemisphere south of 40°S latitude. It is a long-lived species that is thought to reach 50 years in age. Sexual maturity is reached between 6-12 years and fecundity is moderate.
Due to its high commercial value, Patagonian Toothfish has been targeted by illegal, unregulated and unreported (IUU) fishers, which have depleted some populations. The Commission for the Conservation of Antarctic Marine Living Resources is the principal managing authority for Patagonian Toothfish and has made a concerted effort in the past decade to eliminate IUU fishing. However a small but persistent level remains. The South Georgia Patagonian Toothfish fishery is the only Toothfish fishery in the world that has been certified by the Marine Stewardship Council as a sustainably managed fishery.
Patagonian Toothfish are primarily caught using bottom longlines, but bottom trawls and pots are also used. Historically, bycatch of endangered and threatened seabird species has been high in this fishery but recent implementation of bycatch mitigation measures has reduced seabird bycatch to low levels. IUU vessels however do not employ these measures and further contribute to seabird mortality.