Tuesday, March 27th, 2012
Photo by Mark Pummell/The Daily Standard

An aerator churns the water in one of the ponds, adding needed oxygen to keep fish healthy. Hatchery workers continuously monitor oxygen and nutrient levels to ensure a healthy environment for the fish.

Related online story:
ST. MARYS - The hunt for eggs has begun.
Workers at the St. Marys State Fish Hatchery are collecting and fertilizing fish eggs. Some already have hatched. [More]
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