Research is ongoing on this subject. For example, the EU-funded project “Diversify” has identified as species most important for increasing the productive diversification of European aquaculture Meagre (Argyrosomus regius), Greater amberjack (Seriola dumerilii), pikeperch (Sander lucioperca), Atlantic halibut (Hippoglossus hippoglossus), Wreckfish (Polyprion americanus), Grey mullet (Mugil cephalus). Other EU-funded projects are also looking into the potential for further diversification of species, including low-trophic species (see AquaVitae (https://aquavitaeproject.eu/). Diversification must be undertaken in acknowledgement of market demand and international trade in aquatic food products.
Algae offer a large potential, but production in Europe is currently still low. The Commission adopted in 2022 the Communication ‘Towards a strong and sustainable EU algae sector', so-called EU Algae Initiative(https://ec.europa.eu/commission/presscorner/detail/en/ip_22_6899) which aims at unlocking the potential of algae in the European Union. The Communication proposes 23 actions to create opportunities for the industry to help it grow into a robust, sustainable and regenerative sector capable of meeting the growing EU demand. The European algae stakeholder platform, EU4Algae (https://maritime-forum.ec.europa.eu/en/frontpage/1727) aims to accelerate the development of a European algae industry and promote algae for nutrition and other uses among consumers and businesses in the EU.