Assign MSY-Based Reference Points to Each Species
Source:R/assign_ref_points.R
assign_ref_points.RdFinds the effort level that maximises yield for each species in fauna
by calling optim on find_msy, then stores the
resulting MSY, SSBmsy, Bmsy, and Umsy in each critter's ref_points
field.
Value
A copy of fauna with the ref_points field populated
for each species.
a fauna object but with MSY based reference points included for each critter
Details
The optimisation searches over a scalar effort multiplier applied to the
first fleet's base_effort (range 0.001–10). MSY is estimated for
each species independently (i.e. holding all else equal; no joint
multi-species MSY is computed). Results are stored in each critter's
ref_points data frame with columns ssb_msy, b_msy,
n_msy, msy, u_msy, base_e_msy_mult, and
base_e_msy.