Dams are a major obstacle for migratory fish, blocking their natural routes and making it difficult for species like salmon to reach spawning grounds. Historically, fish ladders and bypass systems have been used, but these can be slow, inefficient, and sometimes ineffective for certain species. However, new innovations are changing the game.
A High-Speed Solution: The Whooshh System
One of the most exciting developments in fish passage technology comes from Whooshh Innovations. Their system, often called the “fish tube” or “salmon cannon,” propels fish through a misted, cushioned tube over dams in just seconds. This is a significant improvement over traditional methods, which can take days or even prevent some fish from passing entirely.
The system works by gently drawing fish into a flexible tube, which then uses air pressure to transport them over the obstacle. It’s a stress-free experience for the fish, as the misted environment keeps them hydrated and protected. Since the technology isn’t limited by dam height, it provides a scalable solution for waterways worldwide.
More Innovations in Fish Passage
Beyond Whooshh Innovations, other systems are being developed to improve fish migration. Researchers are exploring controlled water flows that mimic natural river conditions, helping fish navigate dams more effectively. Government agencies and conservation groups are also investing in new designs to ensure that fish can migrate safely while balancing hydroelectric energy production.
The Impact on Ecosystems and Energy Production
Improving fish passage has wide-reaching benefits. Healthy fish populations support ecosystems, commercial fisheries, and even recreational fishing. At the same time, finding solutions that allow dams to operate efficiently while protecting wildlife is crucial for sustainable energy production.
Efforts like those from Whooshh and research from NOAA Fisheries highlight the importance of innovation in conservation. By implementing smarter fish passage solutions, we can maintain both biodiversity and energy efficiency, ensuring that future generations inherit thriving rivers and sustainable power sources.
