I've given up on sushi and sashimi except when I hunt the fish myself. Tuna fishing for sashimi has caused the near extinction of the blue fin, and salmon farms are killing the water. All this because Japanese style raw fish is soooo sexy.
"There is little debate that salmon aquaculture is both unsustainable and environmentally destructive. Three or more kilogrammes of wild fish is needed to produce one kilo of farmed salmon. The ocean bottoms under and around the open-ocean net pens are usually devoid of any life, buried under the excrement of up to a million salmon overhead. "