Video

River Chub Building A Nest

Great Smoky Mountains National Park

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Description

River chub play a very vital role in river ecology through one of their specialized behaviors, nest building. Brightly colored male river chubs collect stones up to golf ball size with their mouths and stack them in piles. These stone piles act as a suitable nest to protect their fertilized eggs. Records show that these stacked stone nests, when completed, may weigh in excess of several hundred pounds!

Last updated: May 15, 2017