<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by terenz:
A bit of a danger in this: sushi/sashimi fish are often flash frozen to kill off parasites. There's a chance that some worm or parasitic organism that burrows in a fish's flesh will surive your stomach and burrow into you (it can happen in salmon for one). Trained sushi chefs will look for the worms.</font>
Ugh. Thanks for the tip, Terenz.
I'd heard that salmon always requires preparation because it's not strictly a saltwater fish, but that pelagic fish were okay. Taking no chances, however, I think I'll avoid all diveboat sushi from now on.