As long as you have the patience to pick out the thousand thin bones and deal with the less than firm flesh and mix it will loads of sand and charcoal you can eat them but only if you have lost your fishing lines and you are marooned on a island with nothing but a bic lighter and coconut shells. Geez they would be tasty then. Until then STOP THINKING ABOUT EATING CRAP!!!!! you are turning my guts lolz.
Jack.