The BioAcoustic Fish Fence (BAFF) at Barkley Lock, Kentucky has been in operation for over two years and has shown promising results in deterring the upstream migration of invasive carp. Over this time the Research Read more…
A new bill, 2037 is working its way through the Minnesota Senate which may see the installation of a new BioAcoustic Fish Fence (BAFF) system, carp removal and a fish passage at Lock and Dam Read more…
A new paper by leading academic Professor Peter Sorensen and research student Jane Feely shows sound barriers for invasive carp that also contain bubble curtains perform better than those without. The paper entitled, Effects of 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.
