This is how you know your fish is fresh! also notice all that red meat on the fillet, if you don't cut every single bit of that off it will completely ruin the flavor, and it will be even worse if you freeze the fillets with any of that meat attached.
[video=youtube;6pUirg03L4A]https://www.youtube.com/watch?feature=player_detailpage&v=6pUirg03L4A[/video]
[video=youtube;6pUirg03L4A]https://www.youtube.com/watch?feature=player_detailpage&v=6pUirg03L4A[/video]