DLMtool (version 4.4.1)

getq: Optimization function that find the catchability (q where F=qE) value required to get to user-specified stock depletion (current biomass / unfished biomass)

Description

The user specifies the level of stock depleiton. This funciton takes the derived effort trajectories and finds the catchabiltiy to get the stock there.

Usage

getq(x, dep, Find, Perr, Marray, hs, Mat_age, Wt_age, R0, V, nyears, maxage,
  mov, Spat_targ, SRrel, aR, bR)

Arguments

x

internal parameter

dep

internal parameter

Find

internal parameter

Perr

internal parameter

Marray

internal parameter

hs

internal parameter

Mat_age

internal parameter

Wt_age

internal parameter

R0

internal parameter

V

internal parameter

nyears

internal parameter

maxage

internal parameter

mov

internal parameter

Spat_targ

internal parameter

SRrel

internal parameter

aR

internal parameter

bR

internal parameter

Paired with qopt