Ovivo® Fish Guidance System – Sound Projector Arrays

Ovivo® Fish Guidance System - Sound Projector Arrays is based on the latest SILAS™ (Synchronized Intense Light and Sound) technology. It is designed specifically for large scale water intakes, but is suitable for any intake type including retrofit on marine and freshwater. The SILAS system uses a combination of flashing intense light and an acoustic sound fields that provide sensory stimulus to the fish, which encourages an avoidance reaction and diverts them away from the point of extraction.
  • System adjustable to deter specific species of fish
  • Non-physical barrier
  • Fish- friendly

Ovivo’s Bio Acoustic Fish Fence (BAFF) uses a combination of sensory stimuli that produces a linear barrier to guide fish away from the point of abstraction to an exit or bywash. The sensory stimulus is a combination of customised sound signals, directional strobe lighting and an air bubble curtain.

BAFF are commonly used on rivers/lakes to guide the fish to a point downstream of the abstraction point or on hydropower headraces to divert the fish to the bywash.

BAFF have recently been subject to extensive trials in the USA for the diversion of Chinook Salmon smolt in a river system feeding cooling water to a power plant.

Another area of application, unrelated to water abstraction, is for the control of migration of invasive fish species.

  • Complies with UK Best Practice recommendations
  • On specific species can deter up to 90%
  • Help protect fish stock levels
  • Reduces handling costs and need for disposal of fish kills
  • Help eliminate outages arising from influx of fish

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Ovivo sells the FGS - Fish Guidance System technology under a license agreement. For further information about the availability of this product, please contact our Customer Contact Center. FGS - Fish Guidance System is a trademark of Fish Guidance Systems, Ltd.