3D SeaLice (117535)

The 3D SeaLice is an innovation project with the purpose to develop and document a new acoustic system that can Detect, Decide, and Deter salmon lice in and around salmon farming facilities. The system is based on low frequency sound technology combined with AI based image recognition and sonar.

The project consists of two phases:

1. Observation trials (spring 2026)

The purpose is to collect data on the behavior of salmon lice in the upper 0–20 meters of the water column around fish farming cages. The study examines the presence of salmon lice in relation to currents, temperature, light conditions, and tides. The observations will form the basis for placement and calibration of sensors, cameras, and acoustic transmitters.

2. Pilot trials (winter 2026 – summer 2027)

The purpose is to test and document the effectiveness of the complete ASWES system in operation at an active fish farming facility, where low frequency sound is used to reduce the intrusion of salmon lice into the cage.

The system’s functionality is divided into three main components:

- Detect: Echo sounder/sonar identifies movement and concentration of plankton and salmon lice larvae in the water column.

- Decide: An AI based camera confirms and classifies the observations to ensure correct identification of salmon lice.

- Deter: Low frequency sound (200 Hz – 2 kHz) is emitted from transducers mounted on the farming cage to steer salmon lice away from the facility.

Funding

The project is funded by ASWES AquaIntel Aps.