Blade Strike




As fish travel through a hydropower turbine they can be subject to blade strike, which results in direct injury or mortality to the fish from collision with a turbine blade. 

Currently, the effects of blade strike are known for the nine species listed in the table.




American Eel

(Anguilla rostrata)


Saylor et al. 2019

American Shad

(Alosa sapidissima)

Saylor et al. 2020

Blueback Herring

(Alosa aestivalis)

Saylor et al. 2020


(Lepomis macrochirus)


Saylor et al. 2019

Brook Trout

(Salvelinus fontinalis)

Saylor et al. 2020

Gizzard Shad

(Dorosoma cepedianum)


Bevelhimer et al. 2019, Saylor et al. 2020

Hybrid Striped Bass

(Morone saxatilis) x (M. chrysops)


Bevelhimer et al. 2019


(Polyodon spathula)

Article in progress (data available in BioPA/HBET)

Rainbow Trout

(Oncorhynchus mykiss)


EPRI 2011; Bevelhimer et al. 2019Saylor et al. 2020

●●● = Complete understand of major factors influencing dose-response

●● = Good understanding of major factors influencing dose-response

● = Partial understanding major factors influencing dose-response

Black= Non HydroPASSAGE project

Blue = HydroPASSAGE project

● = Biological response equation developed

○ = Biological response equation generated