The phrase "fresh fish" means seafood that has been recently caught, is in good quality, and has not been frozen or preserved for a long time. Full definition
I loved the fish department which had over 20 types of fresh fish at ridiculously low prices. (mommyniri.com)
The focus is on fresh and accessible foods — emphasizing organic ingredients and mostly local produce, including fresh fish from the island, delivered daily by local fishermen. (travelagentcentral.com)
I think quinoa would pair well with fresh fish, I'm not sure I'm up for making sushi, but I'll keep your recipe handy for when I'm feeling brave. (hungryhealthyhappy.com)