A unique species of Antarctic whale, known as the Ross Sea Killer Whale is under threat thanks to the continued demand for Antarctic Toothfish, more commonly known as Chilean Seabass. Patagonian toothfish from the southern oceans is also sold as Chilean Seabass, but is in fact a different species. 
For the last 25 years, diners across the U.S., Europe and Asia have been voraciously consuming Chilean Seabass. Due to characteristics like slow growth and low reproduction rates, this fish is less resilient to fishing pressure.
The Ross Sea is a deep bay off Antarctica’s southern coast, an area many scientists consider to be the last ocean ecosystem unaffected by humans. Complex biological networks and species dynamics exist in the region, many of which are tied to the Antarctic Toothfish, the most abundant fish in the region and an important species in the food web, both as a predator and as prey.
Antarctic Toothfish are thought to be the primary food of Ross Sea Killer Whale and scientists have noted that the whales, that were once a common sight in the area, are no longer present.
If the Antarctic Toothfish and Ross Sea Killer Whale were to disappear the ecological impacts could be severe, as they are both at the top of the marine food web. Removing such high level predators will change the food web structure, and we don’t know what that would mean for the ecology of the Ross Sea.
The solution?
Eat less Chilean Seabass – a decreased demand will make fishing trips to the Ross Sea less economically viable. If you do buy Chilean Seabass, buy the MSC certified product from South Georgia. This fishery has taken additional measures to improve the sustainability of their practices and catch.
In addition, support efforts like those lead by Greenpeace, to have the Ross Sea recognized as a marine protected area, of limits to all fishing.





Mussels have been farmed since the 13th century.