As summer fades, the transformation of our lakes begins. The once vibrant greens of the surrounding trees slowly give way to a spectacular tapestry of red, orange, and yellow. This kaleidoscope of colors is a sight to behold, reflecting beautifully on the waters of Lake Syracuse, Lake Wawasee, and Lake Papakeechie.
With fall’s arrival, our lakes undergo more than just a visual transformation. How do these cooler temperatures affect our lakes? Below are 6 changes to expect as autumn progresses:
Decreased Water Temperature: Overall water temperatures drop, affecting the behavior of aquatic life. Fish and other organisms may move to different depths to find their preferred temperatures. Click HERE to see live water temperatures!
Temperature Stratification: During summer, lakes typically have distinct thermal layers with warm water on the surface and colder, denser water at the bottom. In fall, the surface water cools down, becomes denser, and starts to sink. This process is called “turnover,” and it mixes the lake’s water, redistributing nutrients and oxygen.
Plant Life: Aquatic plants may die or go dormant as sunlight decreases and temperatures fall. Some plants may even release seeds to prepare for new growth in the next warm season.
Water Levels: Water levels can fluctuate due to reduced evaporation rates and increased precipitation. In colder regions, lakes may freeze over, creating a solid ice layer on the surface. Click HERE to see live water levels!
Wildlife Activity: Animal activity changes with the seasons. Some species may become more active in preparation for winter, while others may begin hibernating or migrating.
Water Clarity: The mixing of the water during turnover can initially make the water appear murkier as sediments are stirred up. Over time, it usually becomes clearer as everything settles.
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