According to the U.S. fisheries management, they made a big mistake (by 100%) in the 2008 cod stock assessment. So, fishermen caught twice too much and should now more or less stop fishing to "rebuild" the cod stock. Their new assessment is based on additional, new data, but uses the same model.
I've got 3 questions. One: does their model consider the consumption of cod, at all its life stages, by predators of all sorts? Two: who's catching more, fishermen or predators? Three: do the predators follow the management's rules, or would just enjoy reduced catches by fishermen?
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