Fish farming is a process where fish are raised in pools or inside restricted areas in natural waters. Fish meat is a healthy and relatively environmentally friendly source of protein

Fish farming can also damage the natural environment. The extra food given to farmed fish, as well as the excrement produced by them, can take its toll on the lake, river or sea in which the fish are raised. Nowadays, fish farming methods has been improved, and it has become more environmentally friendly. 

Fish farming in Finland.