Compute F following a threshold rule, with a cap at B/B_ref = 1
Usage
threshold_cap(ssb, B_ref, F_ref, alpha, beta = 1)
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