The number of underwater aquaculture cameras required for cod farming in deep-water cages is usually determined by factors such as cage size, stocking density, and monitoring needs. Generally, 2 to 4 cameras per cage are suitable.

For small deep-water cages (with a diameter of less than 50 meters), if the stocking density is moderate, 2 cameras can meet basic monitoring requirements. They can be installed to shoot from different angles: one can capture the feeding situation of cod schools from bottom to top, and the other can observe the overall behavior and health status of the fish from top to bottom.

For large deep-water cages (with a diameter of more than 100 meters), or in cases of high stocking density and higher requirements for monitoring accuracy, more than 4 cameras may be needed. It is even possible to combine different types of equipment such as underwater pan-tilt cameras and binocular cameras to build a three-dimensional monitoring network, thereby achieving all-round monitoring of the cod’s growth environment and growth status.

In addition, if aquaculture enterprises have higher intelligent needs—such as automatic counting of cod schools and individual growth tracking—the number and types of cameras need to be further increased based on specific technical solutions and algorithm requirements.