In Lake Huron, fish are congregating in large numbers near an Ontario nuclear plant, creating a remarkable sight that is now being captured in exceptional detail. Filmmakers Yvonne Drebert and Zack Melnick, using an underwater drone valued at $250,000, have been able to film parts of the Great Lakes that are typically inaccessible due to their depth or remoteness. This drone, one of only around 10 in existence globally and the sole one operational in freshwater, is providing unique footage for their upcoming documentary series, “Hidden Below: the Great Lakes,” set to premiere on Earth Day.
The focus of their dive is on the warm water discharge from the Bruce Nuclear Generating Station near Tiverton, Ont., which serves as a refuge and feeding ground for various fish species. The area is popularly known as “fish city” due to the significant number of fish it attracts, including gizzard shad, bigmouth buffalo, walleye, bowfin, salmon, trout, catfish, and carp. The filmmakers described the underwater scenes as reminiscent of the ocean, showcasing a diverse array of fish species thriving in the warm waters.
Experts point out that the warmer water from the plant’s discharge creates a rich food source for the fish, leading to an abundance of aquatic life in the area. However, they caution that the concentration of fish at these thermal plumes may indicate a fundamental shift in the ecosystem, likely influenced by the presence of invasive species, particularly zebra and quagga mussels. These invasive mussels have disrupted the natural balance by depleting plankton levels, impacting the food chain and habitat of native fish species.
Despite the spectacle of the “fish city” near the nuclear plant, scientists warn that the changing conditions in Lake Huron could have adverse effects on the local fish population and ecosystem. With the warmer waters favoring invasive species and potentially altering the habitat, concerns are raised about the long-term sustainability of the Great Lakes and the impact on the communities dependent on these waters for their livelihoods.
As the Earth Day livestream event approaches, viewers will have the opportunity to witness the underwater world beneath the Great Lakes and contemplate the implications of the captivating “fish city” phenomenon near the Bruce Nuclear Generating Station.
