Katelyn Bruckner frequently visits Hamilton’s harbour with her dog, despite living near Gage Park. She reflects on the improved conditions this year compared to the 2024 season marred by a foul-smelling algae bloom, which deterred many from enjoying the area. Unlike last year’s situation where the algae formed massive mats emitting a stronger stench upon decomposition, this year’s pea-soup-like algae masses in the harbour have not grown as extensively.
Bruckner expressed her delight in walking her dog near the Royal Hamilton Yacht Club without noticing any unpleasant odors, attributing the different outcomes this year to varying rainfall patterns and less intense rainstorms compared to 2024. Cari Vanderperk, the director of watershed management at Hamilton Water, highlighted the essential factors for algae growth as sunlight, heat, and nutrients. She emphasized that the city’s ability to manage water runoff effectively played a crucial role in preventing excessive nutrient buildup in the lake.
The fluctuating weather conditions also contributed to this year’s positive outcome, with Vanderperk mentioning the impact of the prolonged ice cover in the harbour during the winter. Despite concerns about blue-green algae toxicity, Vanderperk noted the diversity of freshwater algae species thriving under different environmental conditions each year.
Jennifer Bowman, a senior aquatic ecologist at the Royal Botanical Gardens, identified urban sewage overflows as the primary source of nutrient runoff into the harbour. She advocated for rainwater absorption strategies near the point of origin to mitigate runoff, emphasizing the importance of homeowners redirecting rainwater away from paved surfaces.
Bowman suggested that upcoming stormwater rates in Hamilton would incentivize property owners to adopt more permeable surfaces, reducing runoff. She also highlighted the positive impact of improved water quality on the vegetation in Cootes Paradise, particularly the flourishing submergent plant life this year.
Local residents like Larry Tagart shared their appreciation for the improved conditions in the area compared to the malodorous summer of 2024. Tagart noted occasional lingering odors near certain spots but overall expressed satisfaction with the waterfront’s state this year.
The positive changes observed in Hamilton’s harbour underscore the importance of proactive measures to prevent nutrient runoff and maintain water quality for both residents and the local ecosystem.