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Operating Model

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pacematt edited this page Feb 6, 2024 · 9 revisions

In MixME, discards are calculated from the proportion of catch retained (the landings fraction) and over-quota discarding. The discards given by the landings fraction are calculated first, and over-quota discards are then calculated if over-quota discarding occurs. Discards numbers and weights from each process are then combined in the discards.n slot of the Operating Model. However, the total weight of over-quota discards for each stock is tracked and recorded over the course of the simulation.

The \texttt{discards.wt} slot of the \texttt{FLCatch} object stores the individual mean weights at age of high-grade discards.

Tutorials

  1. Conditioning a simple single-stock Operating Model
  2. Conditioning a simple mixed fishery Operating Model
  3. Exploring simulation outputs
  4. Management - Constant fishing mortality
  5. [Management - Empirical harvest control rule]
  6. [Management - Model-based harvest control rule]

User Manual

  1. Introduction to MixME
  2. MixME simulation loop
  3. [Operating model]
  4. Observation error model
  5. [Stock estimation module]
  6. [Harvest control rule module]
  7. [Advice implementation module]
  8. Forward projection module

Technical Manual

  1. Operating model
  2. Observation error model

MixME Development

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