Assessment of 316(b) impacts on Ohio River fish populations |
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| Institution: | 1. Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea;2. Department of Marine Environmental Science, Korea University of Science and Technology, Daejeon 34113, Republic of Korea;1. Estación de Fotobiología Playa Unión, Casilla de Correos No. 15 (9103), Rawson, Chubut, Argentina;2. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina;1. Mines de Douai, SAGE, CS10838, F-59508 Douai, France;2. Université de Lille, France;3. Université du Littoral-Côte d''Opale (ULCO), LPCA, 189A, Avenue Maurice Schumann, F-59240 Dunkerque, France;1. Department of Physics, University of Azad, Jammu & Kashmir, Muzaffarabad, Pakistan;2. University of Pelita Harapan, 1100 M.H. Thamrin Boulevard, Lippo Village, Tangerang 15811, Indonesia;3. Department of Computer Engineering, Bina Nusantara University, 9 K.H. Syahdan, Jakarta 14810, Indonesia;4. Faculty of Mathematics and Natural Sciences, Syiah Kuala University, Darussalam, Banda Aceh 23111, Indonesia;5. Faculty of Mathematics and Natural Sciences, Diponegoro University, Tembalang, Semarang 50275, Indonesia;6. Faculty of Mathematics and Natural Sciences, Jakarta State University, 10 Rawamangun, Jakarta, Indonesia;7. Krida Wacana Christian University, Jakarta 11470, Indonesia;8. Faculty of Mathematics and Natural Sciences, Udayana University, Kampus Bukit Jimbaran, Denpasar 80361, Bali, Indonesia;9. Research Center of Maju Makmur Mandiri Foundation, 40/80 Srengseng Raya, Jakarta 11630, Indonesia;10. Fukui Science Education Academy, Takagi Chuou 2 choume, Fukui 910-0804, Japan;11. Physics of Magnetism and Photonics Group, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, 10 Ganesha, Bandung 40132, Indonesia |
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| Abstract: | Cooling water intake systems have the potential to adversely impact aquatic organisms though entrainment and impingement (impacts referenced under 316(b) of the Clean Water Act), yet the loss of individual fish does not necessarily mean that a population will suffer a significant decrease in number. The results of utility sponsored studies on Ohio River fish populations provide strong evidence of positive changes in the fishery due to water quality improvements. Despite these improvements, a simulation is needed to determine if a reduction in 316(b) fish losses would result in higher or similar fish population levels. Electrofishing data collected at seven power plant locations from 1981 to 1998 will be used for the population assessments. Potential 316(b) impacts on Ohio River fish populations will be modeled using site specific 316(b) data and a Leslie matrix model. The theoretical maximum population for various fish species, with and without 316(b) impacts, will be compared and the probabilistic risk that fish populations will fall below the threshold for species survival will be assessed. Historically, EPA has allowed 316(b) to be implemented on a case-by-case basis, however, the utilities believe that the first step in assessing potential adverse environmental impacts is to assess the condition of the affected fish populations. |
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