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Wabash River Fish Community Study: Impact of Thermal Plume from Breed Power Plant

This study aims to determine changes in the fish community of the Wabash River due to the thermal plume from Breed Power Plant. Electrofishing and seining methods were employed in designated zones before and after the thermal discharge area. Monthly surveys were conducted from July to October in 2011 and 2012 for data collection and analysis.

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Wabash River Fish Community Study: Impact of Thermal Plume from Breed Power Plant

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  1. Wabash River Study Sponsored by Electric Power Research Institute Conducted by EA Engineering, Science, and Technology, Inc.

  2. Study Objective • Determine whether or how the fish community of the Wabash R. has changed in a portion of the river that was previously within the thermal plume from the former Breed Power Plant.

  3. Study Area • From about 1 mile upstream of Darwin Ferry to York, Illinois.

  4. Study Design • 2 electrofishing zones upstream of the former thermal discharge and 3 zones downstream of it. • 1 riffle area sampled by seining upstream of the former discharge and one riffle downstream.

  5. Sampling Frequency • Monthly in July, August, September, and October 2011 and 2012.

  6. Data Analysis • The current data will be compared to those collected by EA and others while the plant was still running.

  7. Seine Results—July 2011, Darwin Ferry Riffle • 28 spp • M. silvery minnow was dominant • Spotfin shiner was common • Four darter species but only logperch and rainbow were common • No Pimphales and no madtoms • Unusual species: • Mud darter (1) • Steelcolor shiner (1) • Silver shiner (1)

  8. Seine Results—July 2011, Riverview Riffle • 26 spp • M. silvery minnow was dominant • Spotfin shiner was common • Only three darter species; only logperch was common • Unusual species: • Mud darter (1) • Steelcolor shiner (2) • Silver Shiner (2) • Bigeye chub (1) • Suckermouth minnow (2)

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