Sea cages are large, floating enclosures used in aquaculture to farm fish and other marine organisms. These cages are typically made of nets and are anchored in open water, allowing fish to swim freely while being contained. This method helps protect the fish from predators and provides a controlled environment for growth. The use of sea cages is an important part of the fishing industry, as it allows for the sustainable production of seafood. Common species raised in sea cages include salmon, tuna, and trout. This practice helps meet the growing demand for fish while reducing pressure on wild fish populations.