The fishing industry has undoubtedly the legitimacy to take part in the process of development of bluefin aquaculture. First because of the pre-eminent role of fishermen in bluefin tuna fishing, especially in the Mediterranean sea, and also because of their capacity to adapt to fishing-based aquaculture by using new fattening practices. A partnership with fishermen is necessary in order to reinforce what has already been achieved with fishing-based aquaculture (fattening) and also to answer many questions of the fishing industry concerning the possible development of a more advanced form of bluefin tuna aquaculture that would be independent of fishing.