runMSE_DDM: Run a management strategy evaluation with density-dependent...

In Blue-Matter/RPC: Reference Point Calculator

Run a management strategy evaluation with density-dependent natural mortality

Description

**Experimental** A wrapper function that converts an OM to MOM, adds a density-dependent M relationship (as a function of biomass) via makeRel, runs multiMSE, and converts the output back to an MSE object.

Usage

runMSE_DDM(
  OM,
  M0,
  M1,
  MPs = "NFref",
  HistRel = FALSE,
  silent = FALSE,
  parallel = FALSE,
  extended = FALSE,
  checkMPs = FALSE
)

Arguments

OM	An operating model.
M0	Natural mortality as the stock biomass reaches unfished levels. Vector of length OM@nsim.
M1	Natural mortality as the stock biomass reaches zero. Vector of length OM@nsim.
MPs	A character vector of MPs.
HistRel	Logical, whether the MICE relationship is used for the historical population. Generally 'FALSE' if conditioned from an outside model.
silent	Should messages be printed out to the console?
parallel	Logical. Should the MSE be run using parallel processing? See Details for more information.
extended	Logical. Return extended projection results?
checkMPs	Logical. Check if the specified MPs exist and can be run on SimulatedData?

Details

Assumes that fecundity-at-age, weight-at-age, and maturity-at-age are constant in the projection.

Natural mortality (M) is a linear function of stock depletion in terms to total biomass (B) in year y (Forrest et al. 2018):

M_y = M_0 + (M_1 + M_0) (1 - B_y/B_0)

with a constraint that M_y = M_0 if B_y > B_0

Value

A MSE object.

References

Forrest, R., Holt, K., and Kronlund, A. 2018. Performance of alternative harvest control rules for two Pacific groundfish stocks with uncertain natural mortality: Bias, robustness and trade-offs. Fisheries Research 206: 259–286. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1016/j.fishres.2018.04.007")}

Blue-Matter/RPC documentation built on Feb. 3, 2025, 11:20 a.m.