Changes between Version 43 and Version 44 of ManagementProcedures


Ignore:
Timestamp:
2012-10-03 16:31:55 (7 years ago)
Author:
joeb
Comment:

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  • ManagementProcedures

    v43 v44  
    11= Management Strategy Evaluation = ''User notes (alpha ver. 6.3)'' 
    22 
    3 Options  
     3Options 
    44 
    55[[Image(MSE_LP_inputs.jpg)]] 
     
    99The MSE module can be used to evaluate a set of regulatory rules i.e. Target fishing mortality, Fixed F, Escapement or TAC via input (fishing effort) or output (quota, fishing mortality) controls or evaluate the currently loaded Ecosim scenario. 
    1010 
    11 ====  * Use regulatory controls: evaluate the regulatory rules. 
     11 * '''Use regulatory controls:''' evaluate the regulatory rules. 
    1212 
    13   ==== 
    1413 
    15  * '''Use input effort controls (linear programming solution):''' uses a linear programing algorithm to find a fishing effort that meets the fishing mortality constraints and is optimised for the total value of the catch. When this control option is selected you can set the upper and lower fishing effort bounds for each fleet. 
    16  * '''Use output (quota) controls:''' fishing effort is set at the level required to meet fishing mortality or quota set via the regulatory rules i.e. Target fishing mortality, Fixed F, Escapement or TAC. When this option is selected you can set the maximum fishing effort and quota control implementation methods 
    1714 
    18   Max. fishing effort. 
     15   * '''Use input effort controls (linear programming solution):''' uses a linear programing algorithm to find a fishing effort that meets the fishing mortality constraints and is optimised for the total value of the catch. When this control option is selected you can set the upper and lower fishing effort bounds for each fleet. 
     16   * '''Use output (quota) controls:''' fishing effort is set at the level required to meet fishing mortality or quota set via the regulatory rules i.e. Target fishing mortality, Fixed F, Escapement or TAC. When this option is selected you can set the maximum fishing effort and quota control implementation methods 
    1917 
    20  * '''Cap effort at:''' caps the effort needed to achieve the fishing mortality or quota. 
    21  * '''Cap effort at Ecosim level:''' fishing effort can never exceed level set by current Ecosim scenario 
    22  * '''Predict effort: '''effort is predicted by the Ecosim Fleet/effort dynamics model then cap so as not to exceed the regulatory rules. 
     18      Max. fishing effort. 
    2319 
    24   Quota implementation methods. 
     20     * '''Cap effort at:''' caps the effort needed to achieve the fishing mortality or quota. 
     21     * '''Cap effort at Ecosim level:''' fishing effort can never exceed level set by current Ecosim scenario 
     22     * '''Predict effort: '''effort is predicted by the Ecosim Fleet/effort dynamics model then cap so as not to exceed the regulatory rules. 
    2523 
    26  * '''No quota:''' no regulation will be used for this fleet. 
    27  * '''Weakest stock quota + discards quota:''' effort is regulated if any catch (landings + discards) on a group exceeds its quota. 
    28  * '''Highest value stock quota:''' effort is regulated if landings on the highest value stock exceed the quota. Catches that exceed the quota on a stock are discarded. 
    29  * '''Selective fishing quota:''' Effort is regulated if landings on the strongest stock exceed the quota. 
     24      Quota implementation methods. 
    3025 
    31 ====  * No regulatory controls (evaluate the current Ecosim scenario): 
     26     * '''No quota:''' no regulation will be used for this fleet. 
     27     * '''Weakest stock quota + discards quota:''' effort is regulated if any catch (landings + discards) on a group exceeds its quota. 
     28     * '''Highest value stock quota:''' effort is regulated if landings on the highest value stock exceed the quota. Catches that exceed the quota on a stock are discarded. 
     29     * '''Selective fishing quota:''' Effort is regulated if landings on the strongest stock exceed the quota.[[BR]] 
     30 *  '''No regulatory controls (evaluate the current Ecosim scenario):'''Ecosim is run using effort from the current scenario. No attempt is made to regulate the fishing effort. This option is used to evaluate the current Ecosim scenario. 
    3231 
    33   ==== 
     32   * '''Catch/estimated biomass:''' Fishing mortality is estimated using a perturbed biomass then effort is updated using the varied fishing mortality. 
     33   * '''Direct exploitation:''' Fishing mortality is computed directly from the predicted Ecosim catch 
     34   * '''Exact biomass known:''' Fishing mortality is computed directly from the predicted Ecosim catch and biomass. Effort is then update with the predicted fishing mortalities and perturbed before use. 
    3435 
    35   Ecosim is run using effort from the current scenario. No attempt is made to regulate the fishing effort. This option is used to evaluate the current Ecosim scenario. 
    36  
    37  * '''Catch/estimated biomass:''' Fishing mortality is estimated using a perturbed biomass then effort is updated using the varied fishing mortality. 
    38  * '''Direct exploitation:''' Fishing mortality is computed directly from the predicted Ecosim catch 
    39  * '''Exact biomass known:''' Fishing mortality is computed directly from the predicted Ecosim catch and biomass. Effort is then update with the predicted fishing mortalities and perturbed before use. 
    40  
     36=  = 
     37=  = 
    4138= Previous documentation = 
    4239= Management Strategy Evaluator = ''User notes (alpha ver. 6.0.7.0317)''