In terms of the science part of your comment about the movement of fish, the same argument could very well be applied to the fishery, given that it focuses on areas where the fish are, which skews the outcome of the observations a bit. It's the sum total of all available information, including information gathered on the ground, i.e., science in the field, that contributes to the completeness of our scientific opinions.
In terms of environmental mediation, I think that's more of a fisheries management issue. For science as such, we currently have tools to encourage the participation of fishers and take their data into account.
I don't know if my colleague Mr. Williams wants to add anything about the proposed environmental mediation.