Equilibrium MSY for the SBT fishery structure

msy_calc() evaluates the equilibrium state for a supplied vector of fully-selected harvest rates. It is a direct translation of data-raw/msycalc.tpl; in particular, it retains the historical two-season fishery timing and high-exploitation adjustment.

Usage

msy_calc(data, F_full)

Arguments

data

A prepared MSY input list. Required fields are nfisheries, last_age, sel_fa, cwt_fa, phi, spwt, M_age, alpha, and beta. The legacy SBT implementation requires exactly six fisheries.

F_full

Numeric fully-selected harvest rates, one per fishery.

Value

A list containing total and fishery catch, spawning and total biomass, recruitment, survivorship, seasonal exploitation rates, and age-specific equilibrium quantities.

See also

Other MSY calculations: find_msy(), run_msy(), sbt_add_msy()