I recently started catching, storing, and eating salmon. I notice that after being vacuum packed, the salmon has a somewhat strange smell that quickly dissapates. Not a fishy smell, but almost a chemical smell. The most probable causes I can think of are :
(1) - Fish slime (is there a way to remove it during the cleaning/filleting?);
(2) - Just the natural, unavoidable consequence of being vacuum packed;
(3) - SOmeone told me that the black garbage bags I've been storing my caught fish in have chemicals that leach into the fish and that I should be using white bags instead.