I read that (length^3)/1200 is a good approximation of weight... so if those cans are 4.75" (I just measured a diet coke can) and if we give you another 1 inch for the tail ...
that calculates to 2.9846475 lbsbanghead....
But...if we give you another 1 and 8/1000th of an inch on that tail...that pushes the estimate to 3.002238698

That's a nice fish...and might just well hav been a 3lb'er... oh well!....Those fillets will put dimples on your butt and you'll have those forever too....

Where's this pond?