SPslope: Slope in surplus production MP

Description Usage Arguments Details Value Author(s) References

Description

A management procedure that makes incremental adjustments to TAC recommendations based on the apparent trend in recent surplus production. Based on the theory of Mark Maunder (IATTC)

Usage

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SPslope(x, DLM_data, reps = 100, yrsmth = 4, alp = c(0.9, 1.1), bet =
c(1.5, 0.9))

Arguments

x

A position in data-limited methods data object

DLM_data

A data-limited methods data object

reps

The number of quota samples

yrsmth

Years over which to smooth recent estimates of surplus production

alp

Condition for modifying the DLM_data (bounds on change in abundance)

bet

Limits for how much the DLM_data can change among years

Details

Note that this isn't exactly what Mark has previously suggested and is stochastic in this implementation.

Value

A numeric vector of DLM_data recommendations

Author(s)

T. Carruthers

References

http://www.iattc.org/Meetings/Meetings2014/MAYSAC/PDFs/SAC-05-10b-Management-Strategy-Evaluation.pdf



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