Version 4 (modified by joeb, 10 years ago) (diff)

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Management Strategy Evaluator = User notes (beta ver. 6.0.6.1112)

Inputs

  • Input uncertainty Sets inputs use for the perturbation of variables
    • Groups
      • CV Coefficient of variation used for perturbation of biomass
      • Kalman weight Kalman weight used for perturbation of biomass
    • Fleets
      • CV Coefficient of variation used for perturbation of effort
      • Annual increase in catchability Amount catchability will increase each year
  • Input reference levels Sets reference levels for performance evaluation and target fishing mortalities
    • MSY Uses the results a Maximum Sustainable Yield search to set Biomass limit, Biomass base and F max. for the target fishing mortalities
    • Group Evaluation of model runs has not been implemented yet so setting of reference levels has no effect
      • Biomass lower Lower biomass limit
      • Biomass upper Upper biomass limit
      • Catch lower Lower catch limit on a group
      • Catch upper Upper catch limit on a group
    • Fleet
      • Lower Lower catch limit by a fleet
      • Upper Upper catch limit by a fleet
  • Input regulatory Sets inputs used for the fisheries regulations
    • Regulatory option Sets how the effort of a fleet will be regulated
      • Max effort Not implemented at this time. Caps the effort of a fleet no matter what regulatory option has been chosen
      • Not used No regulation will be used for this fleet
      • Effort Warning has not been tested or validated. Effort is regulated by computing target fishing mortality using Biomass limit, Biomass base and F max. from estimated biomass. If target fishing mortality exceeds achieved fishing mortality fishing effort is scaled back.
      • Weakest Stock quota Quota for the year is computed from Biomass limit, Biomass base and F Max using estimated biomass. Effort is regulated if any catch (landings + discards) on a group exceeds its quota.
      • Strongest stock + discards quota Quota for the year is computed from Biomass limit, Biomass base and F Max using estimated biomass. Effort is regulated if landings on the strongest stock exceed the quota. Bycatch on other stocks is discarded.
      • Selective fishing quota still needs explanation
    • Fleet Quotas Quota by group and fleet used to compute fleet share of quota on a group.
    • Target fishing mort policy Sets parameters for target fishing mortality. Biomass limit Biomass base and F max.
    • Fixed escapement Sets fixed escapement biomass of a group. If this value is set then the quota for the year is computed as [estimated biomass] - [fix escapement] instead of using the target fishing mortality parameters.
  • Input effort tracking Sets weights used when evaluating current Ecosim scenario.
    • Objectives weights
    • Ecological weights
    • Fleet weights

Outputs

Attachments