The concept of maximum sustainable yield involves setting a total allowable catch (TAC) for each stock that allows renewal of the species and exploitation under sustainable economic, environmental and social conditions.
Tá i gceist le coincheap na huasghabhála inbhuanaithe ná socrú, i gcás gach stoic éisc, an Ghabháil Iomlán is Incheadaithe (GII) a cheadaíonn athnuachan an speicis agus a shaothrú a ráthú faoi choinníollacha eacnamaíocha, timpeallachta agus sóisialta atá inbhuanaithe.