This report provides an overview of the interactive platform developed within the FarFish project to integrate codes, visualization and data interaction tools for the Case Studies within the project. The overall objective the work described in the repot has been to develop tools that provide added value, relevance and usefulness in support of management and decision making for the actors involved in each of the case studies in the project. To achieve this, the project has developed a suite of

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... based tools that let users upload and analyse their own data purely through a web browser, so they can be used on any computer without installation or knowledge of the R programming language. The source code for the tools is also public and hosted on GitHub, allowing institutions to manage their own installation if required in the future. The FarFish-DLMtool is an interactive tool where the users can incorporate their data and obtain pertinent information in return. The user guide provided in this report allows anyone to use the tool after the project ends. In addition, all parts of the project are open source, which means the code behind the tool and the tool itself will remain available for anyone to use and adapt, and thus remaining useful beyond the lifetime of the project. This report is structured in three parts, the first part corresponds to a technical user manual of the FarFish-DLMtool for people inside and outside FarFish, the second is an impact evaluation of the tool and the third describes its implementation for four bycatch species in FarFish case studies.