- Contact information
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For information on Lakes in Wisconsin, contact:
- DNR Lake
Division of Water
Bureau of Water Quality
- Aquatic Invasive Species Contacts
Rainbow Smelt - Crystal Lake
- Status
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Verified
- Date First Found
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12/31/1985
About
Rainbow Smelt
Rainbow smelt is a very small (7 to 9 inches long, weighing 3 ounces) invasive fish. They are silvery overall with a pale green back and iridescent purple, blue and pink on their sides. They have a conspicuous silvery streak running lengthwise along each side. In the water, rainbow smelt shimmer colorfully. When removed from the water, however, they quickly fade to a silvery white and give off the odor of cucumbers.