Among the changes are a downgrading of brown crab ratings from 3 to 4 (with 1 being the most sustainable and five the least sustainable rating).
A rating of 4 means that, for the first-time, pot caught brown crab is no longer on the Cornwall Good Seafood Guide recommended list. Lobster has also seen a change in sustainability score due to lack of management in this fishery, but its overall rating has remained the same.