Calculate the spawning stock biomass at the maximum sustainable yield (SSBmsy).

Calcu_SBmsy calculates the spawning stock biomass at the maximum sustainable yield (Fmsy) for the Bevertoh-Holt stock-recruitment relationship.

Usage

Calcu_SBmsy(Fmsy, M, Sel, w, g, A = 6, alpha, beta, method_SR)

Arguments

M

A vector of natural mortality rate at age a. The length should be A+1.

Sel

A vector of selectivity at age a. The length should be A+1.

w

A vector of weight at age a. The length should be A+1.

g

A vector of maturity at age a. The length should be A+1.

A

Plus group age. Default is 6.

alpha

Estimated Parameter alpha in the Beverton-Holt stock recruitment relationship.

beta

Estimated Parameter beta in the Beverton-Holt stock recruitment relationship.

Value

A value of the spawning stock biomass at the maximum sustainable yield (SSBmsy).