`CompSRA.Rd`

A stock reduction analysis (SRA) model is fitted to the age-composition from the last 3 years (or less if fewer data are available)

CompSRA(x, Data, reps = 100, plot = FALSE) CompSRA4010(x, Data, reps = 100, plot = FALSE)

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? |

An object of class `Rec-class`

with the `TAC`

slot populated with a numeric vector of length `reps`

A stock reduction analysis (SRA) model is fitted to the age-composition
from the last 3 years (or less if fewer data are available) assuming a constant
total mortality rate (*Z*) and used to estimate current stock depletion (*D*),
\(F_\textrm{MSY}\), and stock abundance (*A*).

Abundance is estimated in the SRA. \(F_{\textrm{MSY}}\) is calculated assuming knife-edge vulnerability at the age of full selection.

The TAC is calculated as \(F_\textrm{MSY} A\). `CompSRA4010`

uses a 40-10
harvest control rule to reduce TAC at low biomass.

`CompSRA`

: TAC is FMSY x Abundance`CompSRA4010`

: With a 40-10 control rule based on estimated depletion

See `Data-class`

for information on the `Data`

object

`CompSRA`

: CAA, Cat, L50, LFC, LFS, MaxAge, Mort, steep, vbK, vbLinf, vbt0, wla, wlb

`CompSRA4010`

: CAA, Cat, L50, LFC, LFS, MaxAge, Mort, steep, vbK, vbLinf, vbt0, wla, wlb

See Online Documentation for correctly rendered equations

T. Carruthers

if (FALSE) { CompSRA(1, MSEtool::SimulatedData, plot=TRUE) } CompSRA4010(1, MSEtool::SimulatedData, plot=TRUE)#> TAC (median) #> 5656.457