| Autor: |
Matousek, John A., Pease, Thomas E., Holsapple, John G., Roberts, Ronald C. |
| Zdroj: |
Journal of Hydraulic Engineering; June 1988, Vol. 114 Issue: 6 p641-650, 10p |
| Abstrakt: |
A three‐year study sponsored by the Empire State Electric Energy Research Corporation was conducted to determine the diversion efficiency and survival of adult and larval fish at a full‐scale angled screen demonstration facility located on the Hudson River estuary. A total of 59,309 fish were collected during the three‐year study, 99.4&percent; from the diversion flow. Initial survival was 90.2&percent;. Extended survival following a 96‐hr observation period was 35.3&percent;. The angled‐screen system efficiency was 31.6&percent;, increasing to 84.3&percent; when corrected for collection and handling mortality. Ichthyoplankton diversion efficiency of 16.3&percent; was inversely related to angled screen approach velocity and directly related to the size of the organism. Angled‐screen system efficiency for ichthyoplankton was 1.7&percent;. The angled‐screen was judged to be successful for mitigating fish impingement. Ichthyoplankton study results indicate low diversion and high mortality, suggesting that angled screens are not effective for mitigating entrainment. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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