Farming fish in a setting that approximates their natural habitat is a rare opportunity to learn about behavior. Alongside firsthand diver observations, video cameras stream real-time footage of the caged fish.
Researchers also implant ultrasonic transmitters in fish and track their behavior and physiology with underwater hydrophones. Combining video with biotelemetry information that is important in deciding how often and how much to feed a species, or how they react to changes in light levels and temperature. It could also inform future cage design and farm site selection—it may even further understanding on how the behave in the wild.