That green fillet is from a Lingcod. The colors of Lingcod can be very different. I have caught some that are almost white, some that are almost black, grey, brown and green or blue/green as we refer to it. When you catch a b/g Ling their meat is b/g also, like in that picture. I was told by a DFG that I often talk to, that certain Lings become b/g because they prefer crabs. She told me that crabs have copper in their blood instead of iron and that copper oxydizes in the fish's blood and stains the fish b/g.
Check out the color differences of these Lings
http://s71.photobucket.com/albums/i135/ ... N08421.jpg
Very dark, almost black (that's not just shadow)
http://s71.photobucket.com/albums/i135/ ... N08441.jpg
Pretty light color for a Ling
http://s71.photobucket.com/albums/i135/ ... ceLing.png
Dark mottling with b/g. Not the same fish that the fillet came from but it would have been the same or even darker meat. You know when it's done cooking cause it turns white.
Cabezon are normally very b/g.