What commercial harvest food from the seas to sell on market?

Commercial harvest of food from the seas primarily includes seafood such as fish, shellfish, and seaweed. Commonly harvested fish species include tuna, salmon, and cod, while shellfish encompasses shrimp, crab, and oysters. These products are collected through various methods such as fishing, aquaculture, and foraging, and are sold in markets both fresh and processed. The industry plays a crucial role in global food supply and economies, but it also faces sustainability challenges.