Guide to Fish Rescue from Turbine Dewatering Process

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Detailed procedure for rescuing fish from turbine dewatering, including steps like hoisting sturgeon, salvaging fish in tanks, and using gantry cranes to transport them. The process involves specialized equipment and careful handling to ensure the safety of the fish. Images illustrate key steps in the fish rescue operation, providing insights into the meticulous process involved in saving aquatic life during turbine maintenance activities.

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PROCEDURE FOR FISH RESCUE FROM TURBINE DEWATERING Bob Cordie The Dalles Fisheries Section March 2021

TYPICAL STURGEON SIZE FOR DRAFT TUBE

MAIN UNIT CROSS SECTION35 DEPTH FISH SAVE MODE

4 DRAFT TUBE HATCH Approx 4 x4 personnel access and fish egress Fish are bagged (Salmonids placed in separate bag and removed first if possible), removed by the tugger, and then placed into the fish tank that has been placed in the gallery prior to fishing the unit. Raw water is obtained at the first floor (where?). Should the tank be aerated? Where is the lid? How many fish in tank? The tank is pushed to the nearest shaft, where a rigger secures it for removal to the fourth floor.