NOTE: This project is in maintenance mode. Further development (backwards incompatible) of more general models is occuring on:

https://bitbucket.org/autocatalysis/model_fishery

This github instance is here to serve as a reference for the online manuscript on bioRxiv (see below).

Dynamical models for fishery assessment

They are made possible by some excellent work:

• Julia

• SciML

• Turing

• DifferentialEquations

• Other important libraries used can be found in the set up environment (*.environment.jl) for each project.

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Current results:

• Results based upon this developmental branch.

• They are generated by the main calling program.

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Models currently implemented:

• Discrete logistic (Euler form)

• Discrete logistic map

• Six sex/size-stage continuous delay differential equation model

Example data are in RData form:

• biodyn_number_size_struct.RData

  • time series by large areal units, number, size, habitat, etc.

  • used by stage structured models

• biodyn_biomass.RData

  • time series by large areal units in biomass

  • used by logistic models

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Documentation:

An example using this approach is found here for snowcrab. It is now grafted onto bio.snowcrab for operational work (as of Jan 2023)

Current documentation is here.