Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 1996 Annual Report
Title | Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 1996 Annual Report PDF eBook |
Author | |
Publisher | |
Pages | 65 |
Release | 1998 |
Genre | |
ISBN |
This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha and steelhead trout O.mykiss smolts during the 1996 spring outmigration at migrant traps on the Snake River and Salmon River.
Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam
Title | Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam PDF eBook |
Author | Edwin W. Buettner |
Publisher | |
Pages | 59 |
Release | 1998 |
Genre | Chinook salmon |
ISBN |
Plaatsingslijst van het archief van de stichting ter bevordering van het landbouwkundig onderzoek in Zeeuwsch-Vlaanderen, 1957-1964
Title | Plaatsingslijst van het archief van de stichting ter bevordering van het landbouwkundig onderzoek in Zeeuwsch-Vlaanderen, 1957-1964 PDF eBook |
Author | |
Publisher | |
Pages | 6 |
Release | 1990 |
Genre | |
ISBN |
Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 1997 Annual Report
Title | Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 1997 Annual Report PDF eBook |
Author | |
Publisher | |
Pages | 46 |
Release | 1999 |
Genre | |
ISBN |
This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha and steelhead trout O. mykiss smolts during the 1997 spring out-migration at migrant traps on the Snake River and Salmon River. All hatchery chinook salmon released above Lower Granite Dam were marked with a fin clip in 1997. Total annual hatchery chinook salmon catch at the Snake River trap was 49% of the 1996 number but only 6% of the 1995 catch. The wild chinook catch was 77% of the 1996 but was only 13% of 1995. Hatchery steelhead trout catch was 18% of 1996 numbers but only 7% of the 1995 numbers. Wild steelhead trout catch was 22% of 1996 but only 11% of the 1995 numbers. The Snake River trap collected eight age-0 chinook salmon and one sockeye/kokanee salmon O. nerka. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with high flows. Trap operations were terminated for the season due to high flows and trap damage on May 8 and were out of operation for 23 d due to high flow and debris. Hatchery chinook salmon catch at the Salmon River trap was 37% and wild chinook salmon catch was 60% of 1996 numbers but only 5% and 11% of 1995 catch, respectively. The 1997 hatchery steelhead trout collection was 13% of the 1996 catch and 32% of the 1995 numbers. Wild steelhead trout collection in 1997 was 21% of the 1996 catch and 13% of the 1995 numbers. Trap operations were terminated for the season due to high flows and trap damage on May 7 and were out of operation for 19 d due to high flow and debris.
Smolt Condition and Timing of Arrival at Lower Granite Reservoir
Title | Smolt Condition and Timing of Arrival at Lower Granite Reservoir PDF eBook |
Author | Richard J. Scully |
Publisher | |
Pages | 102 |
Release | 1986 |
Genre | Chinook salmon |
ISBN |
Den Gierriges Urte-Potte
Title | Den Gierriges Urte-Potte PDF eBook |
Author | |
Publisher | |
Pages | 7 |
Release | 1771 |
Genre | |
ISBN |
Innovations in Fish Passage Technology
Title | Innovations in Fish Passage Technology PDF eBook |
Author | Mufeed Odeh |
Publisher | |
Pages | 240 |
Release | 1999 |
Genre | Nature |
ISBN |
Odeh (Conte Anadromous Fish Research Center) presents 13 contributions which explore the technical possibilities of constructing effective fish bypass systems for hydroelectric dams, especially those that are due for relicensing in the context of new regulations. The articles consist of case studies in the effectiveness of such techniques as surface bypass systems, modular inclined screens, hydroacoustic evaluation of fish entrainment patterns, surface collection, surface spill gates, and radio-tagging and radar tracking behavior evaluation strategies. Annotation c. Book News, Inc., Portland, OR (booknews.com).