Hi - I bought a beautiful fillet at St. Lawrence Mkt. Part of the recipe I am using asks to take a piece of the fillet and marinate it - hence eating it raw...but marinated. Is this safe? The fish was not 'sashimi' grade - but totally fresh (but wild). I have but the small pieces in the freezer overnight - and will marinate it for a few hours tomorrow - is it okay to eat raw/marinated?