Bemtool Overview
0 likes200 views
BEMTOOL is an integrated bio-economic modeling platform developed by COISPA to simulate fisheries. It consists of 6 interlinked modules - biological, impact, economic, management, fleet behavior, and multi-criteria decision analysis. BEMTOOL can model multiple fish stocks and their interactions with several fishing fleets. It integrates uncertainty and propagates it through forecasts. BEMTOOL has been used in projects to evaluate management scenarios for fisheries in the Mediterranean and Black Seas.
Bemtool Overview
- 1. BEMTOOL PLATFORM Integrated Bio-Economic Modelling TOOLs COISPA Tecnologia & Ricerca Stazione Sperimentale per lo Studio delle Risorse del Mare Isabella Bitetto Maria Teresa Facchini Maria Teresa Spedicato Giuseppe Lembo BEMTOOL has been initially developed in the MAREA project (MARE/2009/05-Lot 1; Specific contract n.4) Overview on the main aspects of BEMTOOL
- 2. The model manage multiple stocks, several fleets and their interaction MIXED FISHERIES stock life history, fleet's impact, fisheries socio-ec Multidimension BEMTOOL - Simulation approach The state of the stocks drives the management measures, based on changes of activity and exploitation pattern of the different fleets…
- 3. BEMTOOL Structure is subdivied Modules Each module Biological Impact (F, f, etc..) Economical Management/Harvest Rules in components MultiCriteria Decision Analysis 6 interlinked modules Modules Fleet behaviour
- 4. BEMTOOL - components BEMTOOL modules are structured in components •Size/age dselectivity effects, •discards •Economic performance of fleet segment/metier •Social effects •Reference points •Management measures The model integrates fishermen behaviour in terms of investments/ disinvestments as a reaction to changes of profits.
- 5. FLOWS of information in BEMTOOL Simulator: ALADYM Age length bAsed Dynamic Model (Lembo et al., 2009) Economic Module Landings and discards Economic data Catch and effort data Outputs of the Assessments: F by age and R VBGF; M; Mat; S-R
- 6. Uncertainty on the recruitment YES NO Integrated 5 percentiles calculation For biological and pressure indicators all years 5 percentiles calculation For biological , pressure and economic indicators first year 5 percentiles calculation For Economic indicators with percentiles ERROR distribution Recruitment (scalar value) Change effort (median profit)
- 7. BEMTOOL Predictions Uncertainty propagation in the forecasts at indicator level
- 8. BEMTOOL Predictions Uncertainty propagation in the forecasts at indicator level
- 9. BEMTOOL Predictions Uncertainty propagation in the forecasts at indicator level
- 10. Kobe plot Trajectories of the time series from predictions. Probability of the indicator SSB to be lower than the reference point Risk evaluation for SSB BEMTOOL RISK EVALUATION
- 11. Projects/case studies using BEMTOOL Main project/case studies in which the BEMTOOL platform has been used for predictions of management scenarios •LANDMED Project (MAREA - Specific project 11 ) - Implications of the implementation of the landing obligations provisions in small pelagic fisheries in Mediterranean. (resp. P. Sartor) •SEDAF Project (MAREA – Specific project 10) - "Improved knowledge of the main socio-economic aspects related to the most important fisheries in the Adriatic Sea” (resp. P. Lembo) •Project “Study on the evaluation of specific management scenarios for the preparation of multiannual management plans in the Mediterranean and the Black Sea” CALL MARE/2014/27. Lead COISPA (resp. M.T. Spedicato).