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More Zebra Mussels Found in Iowa Lakes
Four microscopic zebra mussel larvae were found in a recent sample of East Lake Okoboji. The discovery is an indicator of adult reproduction of the aquatic invasive species Spirit Lake according to DNR Fisheries Biologist Mike Hawkins. Officials have yet to find adult zebra mussels in the Lakes but it seems as though at least a few are present.

Zebra mussels are small, D-shaped clams that have alternating light and dark bands. Many are no bigger than one inch in length. Zebra mussels are native to the Caspian Sea region of Asia and were introduced into the Great Lakes in the 1980s from water of ocean going ships. They spread from the Great Lakes to the Mississippi River and were first documented in the Mississippi River in Iowa in 1992.

 
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High Phosphate Fertilizer Applied to Arkansas Lakes - Biologists plan to apply the granular fertilizer that is high in phosphate, which helps boost the production of phytoplankton. Phytoplankton is a microscopic plant that is the foundation of the food web in aquatic systems. It is what gives most ponds and lakes the green color during the spring and early summer months.


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