4. Conclusion

Making better use of the co-products generated by the various seafood production and processing activities is a major challenge for all players in this sector. This is all the more true in France, with its long coastline. In addition to the need for better organization of co-product collection in certain areas, the development of value-added markets is essential.

Aquatic by-products contain many interesting molecules, which cannot always be competitively valorized due to low content, global competition and competition with other resources...

There are several barriers:

• product variability and seasonality (volumes, composition) ;

• the fragmentation of sources: the collection and recovery of small volumes is more costly and difficult to make profitable;...