Over 30 years ago, we founded Fish Guidance Systems (FGS) to protect fish from human-made infrastructure. Our systems, which can include sound, light and bubbles, deter a wide range of fish species from hazardous environments Read more…
Dr. Mark Everard, Associate Professor of Ecosystem Services at the University of the West of England, took to BBC Radio 4’s Farming Today on Monday 25th November 2024, to advocate for the installation of an Read more…
The conversation around the Acoustic Fish Deterrent (AFD) at Hinkley Point C has drastically changed after the AFD Delivery Group released a report that answered and overcame the challenges facing EDF regarding the available technologies Read more…
Our systems can be used to discourage managed fish stocks in lakes and reservoirs from exiting via outlet channels, as well as blocking invasive species such as bighead, silver, black and grass carp from travelling upstream.
Guidance is often necessary to affect the movement of migratory fish, which might otherwise enter channels and follow routes that are harmful.
These solutions can be deployed from a barge or boat in both freshwater and estuarine environments, with equipment moved to different locations as the project progresses.
Invasive species such as bighead, silver, black and grass carp pose a major threat to the ecosystems in which they are allowed to thrive.
Sound-based systems reduce the possibility of harm to salmon, without risking shutdown of facilities or incurring the high maintenance costs associated with operating fixed smolt screens
Eels have poor hearing ability, so sound-based systems are rarely effective in controlling their movement. Instead, FGS has developed light-based solutions that ensure these species are guided away from intakes
Gizzard shad, alewife and blue-back herring and more achieving deflection rates of over 95%
Every species of fish has slightly different physiology and hearing characteristics, we use three categories of hearing sensitivity before developing an appropriate solution.
