[eastforker]

Most serious fishermen keep a hand held spring scale in their tackle box. No they are not very big and many of them scale over a hundred pounds.

http://www.eachbuyer.com/50kg-110lb-0-02lb-digital-lcd-hanging-fishing-weighing-scale-black-p15117.html?currency=USD&from=pla&gclid=CjwKEAiA94nCBRDxismumrL83icSJAAeeETQ4OF3zReLjhoAKajZH-GR4z_A4KsJBpqw9cuG7Z1hKBoCDT7w_wcB

[norwaypinesavage]

The scale you linked to is inadequate to weigh the fish in the story. The maximum capacity is (just) under the stated weight of the fish. The point I'm making is that anyone who carries around a scale capable of accurately measuring a 112 lb. fish will find that it is inadequate to accurately measure the more typical 5 - 20 lb. fish.

Additionally, measuring a 112 lb. fish requires sturdily supporting the scale at a height higher than the fish is long, and then waiting until the fish stops flopping around. This is not easy for a 112 lb. fish. The story would be far more complete and feasible if it described how the fish was weighed.