Humans consume roughly 90 to 95 million tons of fresh-caught fish each year. Larger catches will not be possible in the near future because fish stocks are at their extreme limits. The demand for salmon, tuna, sea bass and cod is increasing with the growing global population, though. These fish are also being presented more and more often as a healthier alternative to meat. For this reason, freshwater and saltwater fish and seafood such as shrimp have been raised in aquaculture since the 1950s, with the trend growing. The industry, which is primarily located in Asia, South America and Europe, is one of the most rapidly expanding in the food industry, with growth rates of 5 to 6 % p.a. and a total production of 73 million tons of fish. The aquaculture industry is providing more and more fish and seafood – but it also presents huge challenges, from the proper nutrition and health of the animals to environmental impact of farming. As an example, sourcing new sustainable raw materials to support aquaculture growth is one of the main challenges of aquaculture. Aquaculture feeds are formulated mostly with vegetable raw materials sources, but fish meal remains an indispensable ingredient guaranteeing good feed palatability and nutritional value for most of the farmed species. Fish meal is manufactured from fresh fish – about 15 million tons of wild-caught fish is used for this. However, its worldwide production has remained stable for many years while the aquaculture industry, and consequently the demand of fish meal, is growing. This model cannot work in the long term, and many experts agree that new raw material alternatives must be found.