Fish compatibility

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The term fish tolerance refers to water thrusters, especially water turbines, to classify the risk of injury to fish migrating downstream and getting caught in the turbines.

Criteria for fish compatibility in turbines and hydropower screws are, for example:

  • Gap-free connections between the rotor blades and the hub
  • slow speeds
  • no sharp blade edges on the leading edge of the engine
  • small number of rotating blades.

Turbines that are compatible with fish are therefore, for example, propeller turbines with fixed impeller blades or special types of hydropower screws .

Individual evidence

  1. ↑ Dr. Guntram Ebel: Fish protection and fish descent at hydropower plants. Computing and bypass systems manual . Ed .: BGF office for aquatic ecology and fishery biology. Halle (Saale) 2013, p. 133 .