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DLMtool (version 4.4.1)

LtargetE4: A management procedure that incrementally adjusts the Effort to reach a target mean length in catches.

Description

A effort based version of the most biologically precautionary of four target length MPs proposed by Geromont and Butterworth 2014.

Usage

LtargetE4(x, Data, reps = 100, yrsmth = 5, xx = 0, xL = 1.15)

Arguments

x

A position in data-limited methods data object

Data

A data-limited methods data object

reps

The number of samples

yrsmth

Years over which to smooth recent estimates of surplus production

xx

Parameter controlling the fraction of mean catch to start using in first year

xL

Parameter controlling the magnitude of the target mean length of catches relative to average length in catches.

Value

A numeric vector of input controls