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What to Do with Unwanted Catches: Valorisation Options and Selection Strategies
27 pages, 8 figures, 7 tables.-- This chapter is licensed under the terms of the Creative Commons Attribution 4.0 International LicenseThe European Common Fisheries Policy (CFP) has established a landing
obligation (LO) and the need for proper management of bycatches without
incentivising their capture. Food use is the priority option but only unwanted catches
(UWC) above minimum conservation reference size (MCRS) can be used for direct
human consumption. As a result, other options, such as animal feeds, industrial uses
or energy, should be considered to valorise landed < MCRS individuals. Two
approaches have been developed to help select the best available option for
processing UWC. The first methodology is based on a multi-criteria decision
analysis (MCDA) using an analytic hierarchy process (AHP) that considers technical,
economic and market criteria. As a sample case, we chose the Basque fleet
fishing in the Bay of Biscay, developed within the H2020 DiscardLess project. The
second approach is based on the simultaneous analysis of both economic and
environmental aspects. This was applied to the case of Spanish bottom trawlers
operating in ICES sub-Divisions VIIIc and IXa. Finally, various food products and
bio compounds from typical UWC biomass were obtained in a pilot food processing
plant developed within the LIFE iSEAS projectDiscardLess project has received funding from the European Union’s Horizon
2020 Framework Programme for Research and Innovation under grant agreement no. 633680. Life
iSEAS has been co-funded under the LIFE+Environment Program of the European Union (LIFE13
ENV/ES/000131)Peer reviewe