Age at maximum biomass

Finds length at maximum biomass

# S4 method for 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

Value

FLPar with length at maximum biomass of a cohort

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

See also

loptAge, lhRef, lhPar, lhEql,

Examples

if (FALSE) {
params=lhPar(FLPar(linf=100))
loptAge(params)
}