Chicago-based alternative-seafood startup Aqua Cultured Foods said Tuesday it signed a deal with Migros, Switzerland’s largest retailer, to advance the development of its seafood alternatives made using its microbial fermentation system to grow protein.

The collaboration includes assessing Swiss consumers' acceptance of the seafood alternative, and exploring new business opportunities in Switzerland.

Aqua Cultured Foods is developing what it says is the world’s first whole-muscle cut, sushi-quality fillets of tuna and whitefish, as well as shrimp and calamari alternatives, based on its fermentation technology.