I think that was shown fairly clearly in one of Dr. Worm's slides in his presentation. It showed a range of other management measures that include, for example, regulating take, regulating gear, and so on. There are a variety of other measures that regulate various aspects of fishing that can work very well alongside marine protected areas.
As I said to another person who asked the question, I think those two are very complementary, and I think if you want to manage the oceans well, you need to use all the tools in that tool box.