What I meant by the exploitation window is that.... Most lobster traps have a ring. The ring is set to be a certain size to get the largest number of lobsters of the right size for marketing. Most lobster fishermen don't particularly want to catch the biggest ones, because when they go in the trap, they can kill everybody. They try to keep it to a certain size.
With the lobster life history, the fact that the females only moult every second year means that they grow slower than the males. You have vulnerable females, which you absolutely need to keep the stock in good shape, staying longer in that exploitation window, which the trap can then catch. That means your actual catch rate of females would be higher than of males over a long-term period.