New innovations |
Right: White Rock fish ladder. Innovasea successfully tested its technology at the dam project in Spring 2022
j is seeing how the AI system performs identifying
different species of fish. That’s something it wasn’t required to do at the White Rock facility, which sees almost exclusively alewife using its fish passage systems. The company is also interested in investigating the use of the technology at larger hydropower facilities. “There is the range limitation on the cameras and sonars we use. We could potentially combine cameras to be able to see at a longer range,” said Quirion. “We’d love to have a partner that has wider canals so we can explore these possibilities.” “We also want to explore the benefits of the
Below: Aerial view of White Rock Dam
technology in different contexts,” Quirion added. “We have augmented this new system at White Rock with our traditional acoustic telemetry and fish tags too. We’ve set up receivers at various points in the channel or the river, allowing us to add a second layer of data.
Near the end of the year, once we got the results from the initial study, we were able to compare with our AI system, and there was some very good agreement there. Our traditional tag technology is really good at tracking individual fish, so you can see the route and behaviour of individual fish, whereas the AI system can’t track individuals but it can see the masses. It sees the whole population, and give a much greater statistical sample. It was great to compare these two technologies. We’re aiming to provide a different tool, a new tool in the toolbox that never existed before. One that gives advantages that are complementary to our traditional tagging technology.” For now, the company is planning to repeat the tests
it did last year at the same site and analyze the results. That will be a big milestone to confirm that the system is seeing the same movement patterns, for example, throughout the migration of the fish.” ●
24 | February 2023 |
www.waterpowermagazine.com
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