Algae Bloom Patterns Baffle Scientists

Montgomery County scientists investigating the cause of high levels of cyanobacteria, also referred to as blue-green algae, in Derwood's Lake Frank and Lake Needwood, say understanding algae bloom patterns may provide the answers.

Unusual patterns have appeared on the lakes' surfaces each day of the bloom. Scientists say variations in algae thickness, sunlight glare and water color all contribute to the phenomenon.  

"If we understood what these bloom patterns are trying to tell us, we could unravel their mystery," said parks department scientist Hector J. Peabody. 

Patterns in the algae blooms look like symbols, according to some park visitors. "It's like slimy hieroglyphics or some kind of photosynthetic binary code," Peabody told The Montgonion. “If only we could decipher it.” 

Earlier this week, advisories were posted letting park visitors know they should avoid direct contact with the water while fishing or boating, and that they should keep pets out of the water and not allow them to drink from the lakes. 

Peabody said algae is found naturally in lakes, but the Lake Needwood and Lake Frank bloom patterns are unusual. “This is definitely something that we will continue to research.”