Hazardous algal blooms, which can be toxic to humans, pets and aquatic life, popped up in McLeod Lake in 2020 and 2022 but — curiously — not this year.
The splash of color is part of a study being conducted by the California Department of Water Resources, which is dumping pinkish dye into the water to figure out why the lake has become a hot spot for harmful algae.
So scientists are using the dye to record the flow of water, which they’re hoping will answer the question of why the algae spreads some years but not others. the blue-green water turning a stark shade of purplish-pink as crews used long poles to distribute the dye evenly at different depths.Undercover staffers, burial pits and a five-ton mess: How Fremont scrambled to respond to 1,000 dead fish
The blue-green algae, known as cyanobacteria, is a natural part of the ecosystem but can rapidly grow under certain conditions, including warm temperatures and calm water. When the algae “blooms” so quickly, it can produce toxins leading to loss of appetite, vomiting and When the blooms are big enough, they can turn the water fluorescent green and make it smell putrid. After a particularly big bloom at McLeod Lake in 2006, Stockton installed a bubble system in the Stockton Deep Water Channel to oxygenate the water and break up the algae,
The dye job is the first of two studies that scientists are conducting in the lake. The next one is expected to be scheduled early next year.
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