There is also potential for the improved regulation of the aquaculture sub-sector, with better monitoring of its impact on ecosystems, notably through the clearer allocation of responsibilities and sharing of information across government structures. Catch limits and other measures aimed at improving the sustainability of fish resources should contribute to increasing producer incomes in the long run by increasing the value of the catch per unit of effort, leading to a reduction in production costs, particularly if complemented by an efficient catch allocation system. Better regulation of environmental externalities linked to aquaculture production and the adoption of sustainable production practices also have the potential to increase the returns from aquaculture farms in the medium to long run.