Looks almost identical to a dominant male bay snook (red form) in breeding dress. The only thing throwing me off is that the jaws look a bit shorter (like a jag). This, however could be the angle of the fish in the picture...
Consequently, tonight I will be posting some pics of my pair of snooks next to their first clutch of eggs. It would be very interesting to compare your male to mine and se if they appear to be different species