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ItargetE4: A management procedure that incrementally adjusts the Effort...

Description Usage Arguments Details Value Author(s) References

Description

An effort-based version of the most biologically precautionary of two index/CPUE target MPs proposed by Geromont and Butterworth 2014.

Usage

1
ItargetE4(x, DLM_data, reps = 100, yrsmth = 5, xx = 0, Imulti = 2.5)

Arguments

x

A position in data-limited methods data object

DLM_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

Imulti

Parameter controlling how much larger target CPUE / index is compared with recent levels.

Details

Tested by Carruthers et al. 2015.

Value

A numeric vector of input controls

Author(s)

T. Carruthers

References

Carruthers et al. 2015. Performance evaluation of simple management procedures. Fish and Fisheries. In press.

Geromont, H.F., Butterworth, D.S. 2014. Generic management procedures for data-poor fisheries; forecasting with few data. ICES J. Mar. Sci. doi:10.1093/icesjms/fst232



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