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Fish Exclusion Screens

The Fish Exclusion Screens are directed towards conservation and habitat improvements, controlling carp is one of the biggest advantages. Fish screens are dual purpose and can also be used privately to prevent desirable stocked fish from exiting a body of water as well as preventing invasive or undesirable fish from entering.

Negative effects of carp in a wetland area:

- Increased suspended solids, sedimentation

- Erosion of meadow ground forming ditches and holes

- Altering the community structure of phytoplankton and zooplankton

- Imbalance of invertebrates reduces native fish diversity and abundance

- Competing with waterfowl for food resources


HOWEVER, high quality wetland ecosystems can be created in the absence of carp and other bottom scavenging fish. Preventing the upstream movement of invasive carp species will improve water clarity, desirable stocked fish, waterfowl and shorebird populations as the carp are continually removed over a couple years.

How The Screens Work


Fish screens are placed in a moving waterway channel, facing upstream. Water passes through them, while vegetation and debris collects on the metal belting. The belting rotates and debris is transferred to the back side of the unit. The incoming water then clears the screen of debris so water can continue to flow freely. The users can input a preset interval cycle to allow the  screens to automatically activate as desired. Run and idle times are fully adjustable. The screens are solar powered for remote areas.

Benefits Of This Design
  • Self cleaning design uses water flow to clear debris

  • Battery operated and charged by self contained solar power allowing flexible installation in remote areas

  • Programmable timer cycling

  • Durable corrosion resistant stainless steel construction

  • Customizable design to suit individual needs

  • May be attached directly to existing culverts

  • Excludes debris as well as aquatic plants and animals

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