loptAge: Age at maximum biomass

In flr/FLife: Methods for Modelling Life History Traits

Age at maximum biomass

Description

Finds length at maximum biomass

Usage

## S4 method for signature 'FLPar'
loptAge(
  params,
  m = function(length, params) params["m1"] %*% (exp(log(length) %*% params["m2"])),
  growth = vonB,
  ...
)

Arguments

params	FLPar
m	A function, i.e. gislason
growth	A function, i.e. vonB
...	any other arguments

Details

There are several ways to calculate L_{opt}, i.e. i) {2/3}^{rds} L_{\infty} ii) L_{\infty}\frac{3}{3+k/m} iii) by maximising the biomass of iv) from an FLBRP object by fishing at F=0 and finding age where biomass is a maximum

Value

FLPar with length at maximum biomass of a cohort

See Also

loptAge, lhRef, lhPar, lhEql,

Examples

## Not run: 
params=lhPar(FLPar(linf=100))
loptAge(params)

## End(Not run)

flr/FLife documentation built on March 29, 2024, 5:50 p.m.