Leo Hearn remembers fishing cod before 1992, and the sense of impending disaster, as the fish got smaller and more scarce. Hearn also remembers going fishing in the early years of the food fishery, and having a hard time finding fish.
When over-fishing was the norm, small fish that adult cod were not eating began to prevail over all cod by eating cod juveniles.
h/t to Bourque for the story link.
Link to the early days.