That upper limit also conforms to the ICES advice rule, which indicates that when the spawning biomass or abundance is in a poor state, F is to be reduced to a value that does not exceed an upper limit equal to the FMSY point value multiplied by the spawning biomass or abundance in the total allowable catch (TAC) year divided by MSY Btrigger.
Cloíonn an uasteorainn sin freisin le riail chomhairle ICES, rud a thugann le fios, nuair atá drochbhail ar an mbithmhais sceite nó ar an bhflúirse, go bhfuil F le laghdú go luach nach mó ná uasteorainn is ionann agus luach phointe FUTI arna iolrú faoin mbithmhais sceite nó faoin bhflúirse i mbliain na gabhála iomláine is incheadaithe (TAC) arna roinnt ar UBI Bspreagphointe.