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Utah News

Masses Of Shrimp Eggs Leave Visible Slick On Utah Lake

Tiny shrimp eggs have been showing in such huge numbers in Utah’s Great Salt Lake that some parts of the water looked covered with an oil slick. Cold weather in fall or winter causes the lake’s small brine shrimp to produce the eggs, or cysts. When conditions are right such as this year, the eggs come together in giant masses. Photos from the Great Salt Lake State Park and Marina west of Salt Lake City show what looks like a swirling, brown slick on the water. When the weather warms the eggs are expected to hatch and continue their life cycle.