Regional breakdown of the number of stocks managed by ACLs and the percentage of ACLs calculated using catch-only methods. One pie chart exists for each US Regional Fishery Management Council. The size of the pie represents the number of stocks managed by ACLs. (Note that any region with “hundreds” of stocks was given a default value of 200.) The percentage shaded represents the percentage of ACLs calculated using catch-only methods. (a) Entire United States. (b) Four US East Coast Regional Fishery Management Councils (New England, Mid-Atlantic, South Atlantic, and Gulf of Mexico).