I was informed by an unverifiable source that the meat is
colored from the ink in their primary diet - octopus!
This may be the case, however I have caught rock greenling on
Adak Island that had the same exact characteristic, and these fish
were WAY too small to be eating octopus. We ran into this all the
time diving the Oregon Coast, and the answer we heard down there
was that the fish were eating crabs. I don't think that's it
either- few, if any, crabs on Adak. It's gotta be something else.
Interestingly, it is rare to catch a ling cod out of Seward,
Alaska, that has green meat. Anyone else know something on
this?