Calculate spawning biomass per recruit (SBR) with a given fishing mortality value.

Calcu_SBR calculates SBR from the statistics derived from the Calcu_stat function and input data with a given fishing mortality value.

Usage

Calcu_SBR(Fish_mort, M, Sel, w, g, A = 6)

Arguments

Fish_mort

Fishing mortality to calculate SBR. Should be provided with a numeric value.

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.

Value

A value of spawing biomass par recruit with the given fishing mortality.