Dan,
What about the following names to consider:
"Steel-Head" which is an extremely large agressive salmon that usually run in northern fresh water rivers. My daughter came up with this name. She worked at a fly fishing shop for several years and is an extremely avid trout angler.
"Bimini" (If you know anything about tying fishing knots the "Bimini Twist" is one of the strongest salt water knots used by fisherman.
"Royal Wolf", a commonly used dry fly.
"The Incisor" means to cut.
"BoneFish", an extremely agressive salt water fish.