Future Development of MixME

Future development

A list of features to be added to MixME:

Operating Model

• effort-based management - Allow for F-based advice in stock projections data-limited stocks - Allow for additional population dynamics in the operating model (biomass-dynamics, fixed population)
• spatial division of catches - Allow for different stock dynamics, catchabilities, discarding behaviour, etc. in different areas.

Management Procedures

• multi-stock/multi-fleet assessment - Extend to allow for system observations and assessment with error using FLBiols and FLFisheries
• multi-stock management - Currently, management is on a stock-by-stock basis. Add a label that allows for the collective management of multiple stocks. This should affect HCR and Implementation System modules.

Operating Model / Management Procedure conditioning

• helper function to check objects - Check for issues in the content and structure of inputs

Results analysis

• check fwd optimisation - A function that takes MixME simulation outputs and check whether the optimisation targets are hit for each fleet in each iteration.

Parallelisation

• implement parallel processing - Refine parallelisation routines.

Tutorials/Vignettes

• Conditioning an operating model with uncertainty
• Preparing a custom management procedure
• Running a full MSE in MixME

Other

• Unit-testing MixME functions using testthat

Completed Features

Operating Model

• stock effort scenarios - Currently, fleet activity is limit to the first consumed quota. Extend this to allow users to define scenarios where fleet effort is the activity required to consume the quota for a named stock.
• implementation error - Allow systematic bias in implementation of catch advice

Operating Model / Management Procedure conditioning

• helper functions to generate empty MixME structure - A function that takes conditioned operating model as input and arguments regarding management lag, data lag, parallelisation settings, etc. Function returns a list containing the conditioned operating model and correctly configures OEM, management control and simulation control objects.

Management Procedures

• multi-stock/multi-fleet assessment - Allow for perfect observations using FLBiols and FLFisheries objects (when no observation structure is supplied).

Parallelisation

• implement parallel processing - Parallelise over iteration. Optionally output progress from each cluster as a text file.

Tutorials/Vignettes

• Conditioning a simple operating model
• Preparing a simple management procedure (fixed catch/fishing mortality rules)
• Running a simple MixME simulation and exploring outputs