Since readers here have been talking about squid, I'll report: the supermarket around the corner is selling squid "tubes" (the body) for 12 euros per kilogram. It comes from "the pacific ocean". I should have asked how old it is.
On a related note, Europe's commercial fisheries continue to die:
http://news.yahoo.com/s/ap/20070211/ap_on_sc/europe_s_troubled_seas