These fish exposed to Whirling Disease positive waters in Pelican Creek, a tributary of Yellowstone Lake, are showing classic signs of the disease. The light colored flashing is caused by uncontrolled movements (whirling) associated with neurological problems the disease can cause. Whirling behavior in the lab is often cause by external stimulus such as feeding, movement or lighting changes around the tanks. Upon very close inspection of the movies one can also see black tails on some of the fish. Black tail is another clinical sign often seen in highly infected fish.
More information about the associated research project may be found in our Research Projects Database.
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Better Quality for Faster, Broadband Connections
Lesser Quality for Slower, Dial-Up Connections
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Better Quality for Faster, Broadband Connections
Lesser Quality for Slower, Dial-Up Connections
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Better Quality for Faster, Broadband Connections
Lesser Quality for Slower, Dial-Up Connections
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Updated:
Wednesday, June 13, 2007