Fig. 2
Economic (left panel) and environmental (right panel) response to selection as a function of genetic correlation (rg) between thermal growth coefficient (\(\text{TGC}\)), feed conversion ratio (\(\text{FCR}\)). The economic and environmental responses were calculated for a single-trait breeding goal with \({\text{TGC}}\) (“single trait”) and for breeding goals with \({\text{TGC}}\) and \({\text{FCR}}\) weighted by EV or ENV. Values are expressed as economic return (euros per kg of fish produced per year) or reduction in eutrophication (kg PO4-eq per ton of fish produced per year)