Hello all, I'm a newbe to this board but have followed it for years. I would like to say you all give excellent advice on tips and techniques for different way's to fish for steelhead. I had a quick question requarding calculating the weight of fish. I picked up a nice brat on saterday morning which was 31" long 9" wide and 7" thick. What formula do you use to calculate the weight of this fish? Any help would be greatly appreciated.