Itarget1_MPA {DLMtool} | R Documentation |
Itarget1 with an MPA
Description
A example mixed control MP that uses the Itarget1 output control MP together with a spatial closure.
Usage
Itarget1_MPA(
x,
Data,
reps = 100,
plot = FALSE,
yrsmth = 5,
xx = 0,
Imulti = 1.5
)
Arguments
x |
A position in the data object |
Data |
A data object |
reps |
The number of stochastic samples of the MP recommendation(s) |
plot |
Logical. Show the plot? |
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
The TAC is calculated as:
If :
else:
where is
(the average index over the 2 x
yrsmth
years prior to the projection period),
is the average index over the past
yrsmth
years, and
is
Imulti
times ,
and
is:
where is argument
xx
and C is the average catch over the last 5 years of the historical period.
This mixed control MP also closes Area 1 to fishing.
This MP has been included for demonstration purposes of a mixed control MP.
Value
An object of class Rec-class
with the TAC, Spatial slot(s) populated
Required Data
See Data-class
for information on the Data
object
Itarget1_MPA
: Cat, Ind, LHYear, Year
Rendered Equations
See Online Documentation for correctly rendered equations
See Also
Other Index methods:
GB_slope()
,
GB_target()
,
Gcontrol()
,
ICI()
,
Iratio()
,
Islope1()
,
Itarget1()
,
ItargetE1()
Examples
Itarget1_MPA(1, MSEtool::Atlantic_mackerel, plot=TRUE)