Fishing in the U.S.

While the average size of smallmouth bass is somewhere between 12 and 18 inches and 1 and 4lb, they can reach a maximum length of about 28 inches and a maximum weight of around 12lb. 

While the average size of rainbow trout is 15 to 25 inches and 1 to 5lb, this trout species can reach a maximum size of around 40 inches and 35-40lb. Some genetically altered stocks can even produce fish that weigh close to 50lb.

While the average size of steelhead is 20 to 30 inches and 4 to 10lb, this trout species can reach a maximum length of around 45 inches and a maximum weight of about 40lb.

While the average size of muskie is somewhere between 30 and 40 inches and 10 and 20lb, this large apex predator can reach a length of more than 60 inches and a weight of up to 70lb. 

While northern pike have an average length of about 17 to 25 inches and an average weight of 2 to 5 pounds, they can reach lengths of more than 50 inches and weights of 55 to 60lb. European pike are generally somewhat bigger than pike found in North America. 

While the walleye’s average size is between 15 and 20 inches and 1 and 3 pounds, they can reach maximum lengths of around 35 inches and weights of up to 25lb. A few specimens have even reached records weights of around 30lb.