These fish are remarkable biological specimens, adapted to the frigid waters of the Southern Ocean. Furthermore, due to the marine environment where the Patagonian toothfish feeds, the species has been found to contain higher levels of mercury compared to shallower water fish.
Slow Growth and Unique Adaptations of Patagonian Toothfish
Marketers needed a name that evoked the delicacy and prestige of fine seafood. The primary target of the fishery is Dissostichus eleginoides, a member of the family Nototheniidae.
In the late 1970s and early 1980s, the fish now known as Patagonian toothfish was being harvested in Chilean waters. However, early attempts to market the fish under its scientific or common names failed because consumers found the appearance unappealing and the name "toothfish" suggested a texture or flavor that was somehow inferior.
Slow Growing Toothfish Facts and Their Fascinating Biology
The legality of the trade has also been complicated by illegal, unreported, and unregulated (IUU) fishing, which has pressured wild populations and complicated the sustainability narrative associated with the name. To answer the direct question of what the real name is, the primary source marketed as Chilean sea bass is the Patagonian toothfish, a deep-water species scientifically known as Dissostichus eleginoides.
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