Sentences with phrase «cyanobacteria since»

Lake Erie has become increasingly susceptible to large blooms of toxin - producing cyanobacteria since 2002, potentially complicating efforts to rein in the problem in the wake of this year's Toledo drinking water crisis, according to a new study led by University of Michigan researchers.

Not exact matches

Cyanobacteria changed the face of the Earth irreversibly since they were responsible for oxygenating the atmosphere.

Since 1867, scientists have recognized the fundamental partnership that produces lichens: A fungus joins with an alga or cyanobacteria in a relationship that benefits both individuals.

Since the detection of the toxin microcystin left nearly half a million Ohio and Michigan residents without drinking water for several days in early August, discussions of ways to prevent a recurrence have largely focused on the need to reduce the amount of phosphorus fertilizer that washes off croplands and flows into western Lake Erie to trigger harmful cyanobacteria blooms.

The paper is a technical analysis of the uncertainties involved in computer modeling studies that use the amount of phosphorus entering Lake Erie in the spring to predict the size of late - summer cyanobacteria blooms, which have grown larger since the mid-1990s.

Since the 1950s, biologists have known that photosynthetic cyanobacteria make microcompartments, called carboxysomes, which house an important photosynthesis enzyme.

That might not sound like very much, but it represents a thousandfold increase in productivity since he first began working with the cyanobacteria in 2010.