| Autor: |
Patrick, Paul H., Powell, Jennifer, Mason, Elaine, Tai, Mo-Ki, Stanko, Thomas, Dziedzic, Heather D. |
| Zdroj: |
Lake & Reservoir Management; Sep2018, Vol. 34 Issue 3, p306-319, 14p |
| Abstrakt: |
Patrick PH, Powell J, Mason E, Tai M-K, Stanko T, Dziedzic HD. 2018. Size distribution of larvae entrained and the role of fine mesh screening in excluding larvae at an operating power plant. Lake Reserv Manage. 00:00-00. This study clearly demonstrated the importance of measuring larval length and head capsule dimension in assessing larval fish entrainment and in determining the performance of screen mesh openings in excluding larvae. We determined the size distribution of fish larvae entrained at the Campbell Power Plant on Lake Michigan and assessed the potential of 4 screen mesh sizes (range, 1.59-9.53 mm [1/16-3/8 in] plus an open-pipe control) in reducing the number and size of entrained larvae. Fish larvae were collected using an entrainment pump net-in-water design. Different sizes of larvae, based on both total length and head capsule size, were entrained at the Campbell Plant, and size ranges varied with species. Entrainment densities also varied with season and diurnally. The screens tested in our study were not effective in excluding larval fish. There was no statistical difference (P > 0.05) in the number of larvae entrained among the different screen sizes tested. Most organisms entrained during screen mesh testing were small (<10 mm total length) and had head capsule sizes (≤1.0 mm) smaller than the smallest screen mesh size tested. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
