Black cod is my favorite fish... a tender, white, non-fishy fish that goes wonderfully well with teriyaki sauce. If you've never had black cod, do yourself a favor and find some! It is also known as "sablefish." I can sometimes find it served in Japanese restaurants, and occasionally served smoked in Scandinavian restaurants. I usually purchase mine in Ballard (a Scandinavian Seattle neighborhood) markets or at Uwajimaya (Seattle Asian grocery) or Ranch 99 Markets (Tukwila Asian grocery).