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LBSPR (version 0.1.6)

Length-Based Spawning Potential Ratio

Description

Simulate expected equilibrium length composition, yield-per-recruit, and the spawning potential ratio (SPR) using the length-based SPR (LBSPR) model. Fit the LBSPR model to length data to estimate selectivity, relative apical fishing mortality, and the spawning potential ratio for data-limited fisheries. See Hordyk et al (2016) for more information about the LBSPR assessment method.

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Install

install.packages('LBSPR')

Monthly Downloads

335

Version

0.1.6

License

GPL-3

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Repository

https://github.com/AdrianHordyk/LBSPR

Maintainer

Adrian Hordyk

Last Published

October 6th, 2021

Functions in LBSPR (0.1.6)

Report the location of the Data Files

initialize,LB_obj-method

Create a new LB_obj object

Fit LBSPR model to length data

Internal function to fit LBSPR model to length data

initialize,LB_pars-method

Create a new LB_pars object

Internal LBSPR Simulation Model

LB_lengths-class

An S4 class containing length data

LBSPR Optimization function for age-based selectivity model

Kalman filter and Rauch-Tung-Striebel smoother

LBSPR Optimization function for GTG model

Plot the Relative Yield, YPR, SPR, SSB, and Recruitment curves

Plot LBSPR model estimates

Optimisation Routine for fitting LBSPR

Run a Shiny Application

General plotting function for simulated data

Calculate Relative Yield, YPR, SPR, SSB, and Recruitment curves for F/M

Plot the size data and model fits

LBSPR Simulation Model

An S4 class containing life history and other parameters

An S4 class containing all parameters for the LBSPR model

Plot sampled length structure against target simulated size composition

initialize,LB_lengths-method

Create a new LB_lengths object

Plot the maturity-at-length and selectivity-at-length curves

Calculate F/M given SPR and other parameters

Circle of estimated SPR and target and limit points