In recent years, cage-net fish farms covering 150 000 square meters came into being in rivers, lakes and reservoirs.

Pyongyang City built cage-net fish farms covering more than 11 700 square meters in the Taedong and Pothong rivers and Kangwon Province has raised many fishes at the cage-net fish farms covering more than 18 000 square meters.

North Phyongan Province stocked the reservoirs of the multi-tier power stations on the Chongchon River with fries and installed cage-net fish farms covering more than 20 000 square meters.

And a fish farm covering more than 2 200 square meters was newly established at the Phalhyang reservoir appeared after building the dam of the Orangchon Power Station. The farm is equipped with the system to monitor and control the feed supply, temperature and pH value in real-time way, and solar electric supply system.

Now, the cage-net fish farms are raising catfish, mandarin fish, Ryongjong fish, carp, sliver carp and other tasty freshwater fishes with high productivity.

Visiting the new cage-net fish farm on the Taedong River in November Juche 104 (2015), Supreme Leader Kim Jong Un said that the cage-net fish farming is of great significance in developing the fish farming and instructed to do cage-net fish farming in rivers, including the Taedong River, and lakes on a large scale.