Stingray Fish Laser

Stingray Marine Solutions describes a system for removing sea lice from farmed fish using underwater cameras, software and lasers. Cameras in a submerged unit capture high-resolution images as fish swim past, while angled LED lights provide visibility at depths of up to 25 metres; blue light is used to improve contrast between fish and lice. A remotely controlled thruster lets operators rotate and direct the unit, and service ports allow sensors and other equipment to be added. Farmers can view live camera streams through Stingray Online.

The software detects and monitors fish and parasites in real time, with machine-learning detectors refined through labeling, training and testing. The company says its laser pulses target individual lice on fish skin while leaving the fish unharmed; the equipment can operate around the clock and fire up to five pulses per second. Stingray Online also gives farmers access to historical data to support decisions without handling fish. The technology combines upgraded cameras and data-processing hardware with ongoing software development, and is presented as a non-invasive way to support fish welfare, production efficiency and sustainability. Stingray says it designs and manufactures the equipment in Norway for use by fish farmers worldwide.