GB_target:
Geromont and Butterworth target CPUE and catch MP
Description
An MP similar to SBT2 that modifies a time-series of catch recommendations and aims for target catch rate and catch level based on BMSY/B0 and MSY, respectively.
Usage
GB_target(x, DLM_data, reps = 100, w = 0.5)
Arguments
x
A position in data-limited methods data object
DLM_data
A data-limited methods data object
reps
The number of quota samples
Details
Note that this is my interpretation of their MP and is now stochastic. Currently it is generalized and is not 'tuned' to more detailed assessment data which might explain why in some cases it leads to stock declines.
References
Geromont, H.F. and Butterworth, D.S. 2014. Complex assessment or simple management procedures for efficient fisheries management: a comparative study. ICES J. Mar. Sci. doi:10.1093/icesjms/fsu017