Water Power Technologies Office (WPTO)
Necropsied Fish that Will Help Determine extent of Dam-Incurred Injuries
PNNL staff operate computer-controlled barotrauma chambers to expose fish to rapid decompression, simulating the pressures that fish may experience when passing downstream through hydropower turbines. Fish are then necropsied, to determine the extent of injuries. This data is used to determine the magnitude of decompression that different fish species can handle without suffering significant injury, which is then applied to turbine design and operation to minimize the negative impacts of hydropower on downstream migrating fish.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Andrea Starr | Pacific Northwest National Laboratory"; Please use provided caption information for use in appropriate context.
Necropsied Fish that Will Help Determine extent of Dam-Incurred Injuries
PNNL staff operate computer-controlled barotrauma chambers to expose fish to rapid decompression, simulating the pressures that fish may experience when passing downstream through hydropower turbines. Fish are then necropsied, to determine the extent of injuries. This data is used to determine the magnitude of decompression that different fish species can handle without suffering significant injury, which is then applied to turbine design and operation to minimize the negative impacts of hydropower on downstream migrating fish.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Andrea Starr | Pacific Northwest National Laboratory"; Please use provided caption information for use in appropriate context.