yield_recrut: Diagnosis on stock from F estimate

In polehalieutique/demerstem: This package aims to falicitate Fish stock assessement for west african partners involved in the EU DEMERSTEM project

Diagnosis on stock from F estimate

Description

yield_recrut function to be optimized by stats::optimize, hence gives an estimation by iteration of F minimum value

Usage

yield_recrut(
  a,
  b,
  Linf,
  K,
  t0,
  list_age,
  Mat_F,
  Mat_M,
  mf,
  F0.1 = F,
  Mat_W = NA
)

Arguments

a	Weight-size relationship parameter
b	Weight-size relationship parameter
Linf	Asymptotic length
K	Growth parameter
t0	Growth parameter
Mat_F	Vector of F
mf	F multiplicator range
Mat_W	Can be used instead to growth paramters

Examples

a <- 0.006
b <- 3.08

Linf <- 44.4
K <- 0.35
t0 <- -0.24

list_age <- seq(1, 10, by = 1)

Mat_F <- c(40.102259e-05, 4.102259e-05, 5.102259e-05, 4.818126e-04 ,1.173966e-03, 20.173184e-02, 9.366615e-02, 2.059620e-01, 3.454309e-01, 2.906350e-01, 4.469356e-01, 3.430000e-01)
mf <- seq(0, 2, by=0.05)

yield_recrut(a, b, Linf, K, t0, list_age, Mat_F, Mat_M, mf)

polehalieutique/demerstem documentation built on Aug. 4, 2024, 5:12 a.m.