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WP 6 progress

WP 6 progress. Cefas, Imperial (IC), AZTI, JRC (all participants) San Seb – Sep 2008. Objectives. Numerically describe fishers’ responses to (i) alternative enforcement regimes and (ii) changes in enforcement intensity

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WP 6 progress

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  1. WP 6 progress Cefas, Imperial (IC), AZTI, JRC (all participants) San Seb – Sep 2008

  2. Objectives • Numerically describe fishers’ responses to (i) alternative enforcement regimes and (ii) changes in enforcement intensity • Evaluate potential consequences of alternative regimes combined with other fisheries management methods • Be used afterwards

  3. Team • CEFAS: overall responsibility for software and “architecture” • IC: modules for calculating new functions (penalty prob.; enforcement cost) • AZTI: links FLR to databases • JRC: testing solutions for less experienced users (web access version)

  4. Progress so far Version 1.4 (initial version as presented at the London progress meeting) 1. Input of enforcement effort – cost data and enforcement effort - probability of detecting infringement (π(e)) data, and fit appropriate models; • Users can define their own effort – cost, effort - π(e) relationships • Graphical illustration of the fitted relationships and data / user defined relationships 2. Investigate the quantitative relationships between costs and benefits (social benefits, private profits, level of harvesting) with changing system parameters and variables • Customise the COBECOS object to any given case study (e.g. fines, lambda) • Optimise for the most socially beneficial combination of enforcement efforts • Include stochasticity in the prediction of illegal harvest, social benefits and private benefits • Visualise the effect of all model parameters on the level of social or private benefits

  5. Outputs(1)

  6. Outputs(2)

  7. New version Version 1.5 • Generic code – both social benefit and private benefit can be changed • New concise manual • Modified slot names • Code more efficient

  8. Uptake: implementation Enforcement effort Cost versus prob of infringements Shadow value of biomass SOCIAL BENEFITS

  9. Progress so far

  10. Summary • Tutorial meeting in London • Prototype has been delivered • Moving into maintenance phase • Looking for feedback from users • Do all Case Studies need to use it (even if they have implemented their own version)?

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