vbrecruit.f: Proportion of a cohort recruiting each year, plots, wrapper...

Description Usage Arguments Examples

Description

Using a Von Bertalanffy growth function and parameters you supply, this determines the proportion of a cohort's numbers and biomass that are at or above different size classes each year

Usage

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vbrecruit.f(birth.year, final.year, Linf, k, t0, cv, lengths.of.interest)

Arguments

birth.year

four digit year of birth

final.year

four digit final year of the growth projection (birth year + average max age is a good)

Linf

VB maximum length (cm)

k

VB k

t0

VB t-zero

cv

coefficient of variation on length for an age

lengths.of.interest

(often the length at recruitment to the fishery or a valuable size

Examples

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cohort.props.f(birth.year=2011, final.year = 2030, Linf = 42, k = 0.086, t0 = -1.57, cv = 0.089)
vb.growth.f(age.vector=1:40,Linf=42,k=0.086,t0=-1.57,cv=0.089)
recruit=vbrecruit.f(birth.year=2011, final.year = 2035, Linf = 42, k = 0.086, t0 = -1.57, cv = 0.089,
   lengths.of.interest=c(25,22,27,30,35))

duplisea/vbrecruit documentation built on June 22, 2019, 5:58 a.m.