Algae and Cyanobacteria in Indiana

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Greetings Riverwatchers!

Recently, a September drive to Bloomington and back was eye-opening. The view of parched grass and dying young trees near my apartment building in Indy spoke of a hot August with downpours so hard that water ran off before assuaging thirsty soil.

Yet, the view through the White River Valley grew lush as I headed south. Some verdant, late-planted soybean fields gave the appearance of June to low-lying areas. Then, harvested cornfields and ripening oats along the ridge lines on my return drive north gave the feeling of late October. Red leaves peeking out of green hillsides hinted that change is ever coming. A scattering of dead trees standing amidst such liveliness was a reminder of the end of all life, while their passing grants the start of life to so many others.

Keep enjoying your favorite creeks, streams, rivers, and lakes, which afford proper 2020 social distancing for you and your dear ones! We look forward to a fresh start soon!

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2020 Workshops Continue Despite a Unique Season

RP2

HRW Basic Workshop in Elkhart County.

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Algae and Cyanobacteria in Indiana

Blue-green algae, also known as cyanobacteria, are a group of photo-synthetic bacteria found in lakes and slow-moving streams. Increased phosphorus and nitrogen (nutrients) from fertilizers, warm weather, and low turbulence cause them to ‘bloom’ in large numbers. Phosphorus is particularly important in fueling their growth.

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State’s Role in Keeping Recreational Health Hazards at Bay

IDEM samples blue-green algae and their toxins at selected swimming areas at some state parks, reservoirs, forests, and recreation areas. Sampling is done in advance of Memorial Day up to Labor Day

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