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Cari-Ann Hayer

Fish Biologist
Email: cari-ann_hayer@fws.gov
Office Phone: 920-866-1763
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In the Lamine, Moreau, and Little Chariton rivers, light traps were used to capture larval bigheaded carps moving into tributaries. Traps were set on a weekly basis in each river, at roughly 1-kilometer intervals up to 7 km upstream. Ichthyoplankton tows were done in locations near the confluence of each tributary with the Missouri River, and within the Missouri River itself. Data includes identification of larval fish, size, and developmental information of subsampled invasive carp species. Flow readings were taken at up to five points across the channel with a Marsh-McBirney flow meter, and water quality was measured at the surface with a YSI ProPlus before retrieval of light traps.
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