Compute F following a threshold rule, with a cap at B/B_ref = 1

Compute F following a threshold rule, with a cap at B/B_ref = 1

Usage

threshold_cap(ssb, B_ref, F_ref, alpha)

Arguments

ssb

Value for SSB

B_ref

Value for biomass based reference point (e.g., B40)

F_ref

Value for fishing mortality based reference point (e.g., F40)

alpha

Cutoff to set F at 0

Value

fishing mortality rate