Depending upon where they are, of course, there are a lot of migratory stocks, from halibut to sailfish to salmon. In providing some refuge from commercial fishers in some of these areas that they may be transiting, you are providing a refuge from capture. I don't know what the measurable benefit would be, but it seems logical to me that it would provide some benefit to those migratory stocks.
On February 1st, 2018. See this statement in context.