Sentences with phrase «triggers algal blooms»
The problem: Overflow and sprayed waste can find their way into local wetlands, where fecal matter triggers algal blooms that choke out other aquatic life.
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In summer, melting sea ice releases nutrients into the water, which triggers vast algal blooms.
Since the algal species is native to eastern Canada, its recent blooms and rapid proliferation in rivers since 2006 — which have angered anglers looking for pristine waters — have been caused by an environmental trigger, with climate change a likely culprit, said Michelle Lavery, a master's degree student at the Canadian Rivers Institute and lead author of the research, published in theCanadian Journal of Fisheries and Aquatic Sciences.
James Castle and John Rodgers of Clemson University think that such algal blooms — triggered by warming water or an increase in nutrients — might be behind the five largest mass extinctions in Earth's history.
Nutrients would pour down off the increasingly denuded land into the sea, triggering massive algal blooms, which would exhaust the water of oxygen and threaten fish.
The findings, they wrote, «support the hypothesis that sporadic ALS can be triggered by environmental lake quality and lake conditions that promote harmful algal blooms and increases in cyanobacteria.»
For example, a lack of healthy zooplankton populations can trigger harmful algal blooms.
These findings support the hypothesis that sporadic ALS (sALS) can, in part, be triggered by environmental water - quality indicators and lake conditions that promote harmful algal blooms.
During that period, tons of excess nitrogen and phosphorus entered the Mississippi River Basin and drained into the Gulf of Mexico, where the large influx of nutrients has triggered huge algal blooms.
Anna Michalak's team combined sampling and satellite - based observations of Lake Erie with computer simulations and determined that the 2011 record - breaking algal bloom in the lake was triggered by long - term agricultural practices coupled with extreme precipitation, followed by weak lake circulation and warm temperatures.