Alaska has hundreds of commercial fisheries, and fishery managers issue unique permits for each fishery. But in a new blog post, Matt Reimer, an ISER economist, and his co-authors report that many of those who fish in Alaska waters have multiple permits, allowing them to take catches in different fisheries. That means if managers change a policy for one fishery—for instance, reducing the catch limit—permit holders could react by changing where they fish, going after different species, or using different gear.

So how can managers assess whether a policy change in one commercial fishery might have such unintended consequences in others? Matt Reimer and his co-authors argue that having statistical data on cross-fishery networks among permit holders—and analyzing those data—could help managers better understand the potential spillover effects of changing policies for a given fishery. The authors also created an interactive map, showing existing cross-fishery networks. Check out the blog.

If you have questions, get in touch with Matt Reimer at: or 907-786-5430.