=+54. Lobsters 2012, part 2. Lobster are caught in traps, which are baited and left in the open ocean. Licenses to fish for lobster are limited, there is a small additional fee for each trap in use, and there are limits on the numbers of traps that can be placed in each of seven fishing zones. But those limits have changed over time. Here’s a scatterplot of the number of traps per licensed lobster fisher over time:

500 375 250 125 Traps/Fisher 1950.0 1975.0 2000.0 Year