1 FLR: An Open-Source Framework for the Evaluation and Development of Management Strategies L.T. Kell, I. Mosqueira, P. Grosjean, J-M. Fromentin, D. Garcia, R. Hillary, E. Jardim, S. Mardle, M. Pastoors, J. J. Poos, F. Scott and R. Scott

2 What is FLR? Fisheries Library in R Provides extensible toolbox for Management Strategy Evaluation (MSE) For example: –fit stock-recruit relationships and model biological stocks –model fleet dynamics (including economics) –simulate management procedures (harvest control rules) –Not just stock assessments (XSA, ICA etc.) –Etc…

3 Philosophy of FLR Open source license (GPL): you can modify a copy of the code, but you must distribute it under the same license. Collaborative: Discussions are open (mailing list), website is editable, external review is encouraged Breaking the barrier between user and developer Improves inter-disciplinary dialogue

4 Design principles Object Oriented Programming Different elements of system are treated as “objects”, e.g. stocks, fleets Each object stores data and has functions that act on that data Objects can be linked together to create simulations Lego blocks Learning curve: trade-off between flexibility and simplicity Uses R – inbuilt graphical and statistical routines

5 Example MSE

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7 The FLR initiative

8 The FLR initiative Source code under version control (CVS)

9 The FLR initiative Packages available for installation

10 The FLR initiative Main package: FLCore –Main classes and functions Collection of secondary packages –FLAssess –FLEDA What’s in a package? –R code for all classes, methods and functions –Help pages for each of them –Examples and datasets –Test scripts

11 The FLR initiative Tutorials and documentation

12 The FLR initiative Work funded by a number of EU projects ( FEMS, COMMIT, EFIMAS, Fisboat, … ) Core team –Maintenance & development of main packages –Release of official versions –Testing of submitted packages

13 In brief Openness & collaboration Lingua franca Bridging the gap between users and developers Learning and working with other disciplines

14 ` Enough talking! The only way to learn is to get your hands dirty…

Now… Install R Install FLR libraries Go to the WIKI: Courses -> UNCOVER ->