msyVirgin-FLBRP-method: Calculate Virgin and MSY Reference Points from Production...

In laurieKell/FLCandy: Candidate methods for FLR

Calculate Virgin and MSY Reference Points from Production Curves

Description

Calculates reference points by comparing unfished (virgin) state with Maximum Sustainable Yield (MSY) state using production curves. Extracts metrics for fishing mortality, catch, and exploitable biomass at both states.

Usage

## S4 method for signature 'FLBRP'
msyVirgin(object)

Arguments

object

An FLBRP object containing stock-recruitment and yield calculations

Details

The method:

• Sets F=0 for virgin state and F=FMSY for MSY state

• Calculates key metrics (F, catch, exploitable biomass) at both states

• Excludes SSB metrics from final output

Value

A named numeric vector containing:

• virgin.f: Fishing mortality in virgin state (≈0)

• virgin.catch: Catch in virgin state

• virgin.ebiomass: Exploitable biomass in virgin state

• msy.f: Fishing mortality at MSY

• msy.catch: Catch at MSY

• msy.ebiomass: Exploitable biomass at MSY

See Also

FLBRP refpts metrics

Examples

## Not run: 
data(ple4)
brp <- FLBRP(ple4)
ref_pts <- msyVirgin(brp)

## End(Not run)

laurieKell/FLCandy documentation built on April 17, 2025, 5:23 p.m.