Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/6682125 |
| 报告编号 | DOE/BP-34796-4 |
| 来源ID | OSTI_ID: 6682125 |
| Predation by Resident Fish on Juvenile Salmonids in John Day Reservoir: Final Report, 1983-1986: Volume 1, Final Report of Research. | |
| Poe, Thomas P.; Rieman, Bruce E. | |
| 英文摘要 | In 1982 the NPPC included in its Fish and Wildlife Program a measure that called for studies ''... to investigate juvenile salmon and steelhead losses to predators while these fish are migrating through Columbia and Snake River reservoirs.'' In the same year the Bonneville Power Administration (BPA) funded ODFW and FWS to conduct collaborative studies to estimate the number of juvenile salmonids lost to predators in John Day Reservoir. Also included as study objectives were: (1) a description of the importance of predation losses relative to mortality at the dam and total reservoir mortality; (2) a description of how predation losses might vary (spatially and temporally); and (3) recommendations of measures to control predation on smolts. We studied four species of predator: northern squawfish, walleye, smallmouth bass, and channel catfish. We selected John Day Reservoir as the study site because the following factors led us to believe if predation was a problem in any reservoir, it would be most obvious there because: (1) the reservoir is an important subyearling chinook rearing area; (2) passage and residualism of juvenile salmonids were considered a problem there; and (3) substantial populations of predators were known to reside in the reservoir. Individual reports were processed separately for the data base. |
| 出版年 | 1988 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 13 HYDRO ENERGY ; 54 ENVIRONMENTAL SCIENCES ; ENVIRONMENTAL IMPACTS ; EVALUATION ; HYDROELECTRIC POWER ; POWER GENERATION ; ANADROMOUS FISHES ; BONNEVILLE POWER ADMINISTRATION ; COLUMBIA RIVER ; FISH PASSAGE FACILITIES ; JUVENILES ; LEADING ABSTRACT ; MORTALITY ; POPULATION DYNAMICS ; PREDATOR-PREY INTERACTIONS ; PROGRESS REPORT ; SALMON ; TROUT ; ABSTRACTS ; ANIMALS ; AQUATIC ORGANISMS ; DOCUMENT TYPES ; ELECTRIC POWER ; ENERGY SOURCES ; FISHES ; NATIONAL ORGANIZATIONS ; POWER ; RENEWABLE ENERGY SOURCES ; RIVERS ; STREAMS ; SURFACE WATERS ; US DOE ; US ORGANIZATIONS ; VERTEBRATES Salmonidae - John Day Reservior (Wash. and Or.) - Mortality 130600* -- Hydro Energy-- Environmental Aspects ; 520500 -- Environment, Aquatic-- Site Resource & Use Studies-- (-1989) |
| URL | http://www.osti.gov/scitech/servlets/purl/6682125 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/264025 |
| 推荐引用方式 GB/T 7714 | Poe, Thomas P.,Rieman, Bruce E.. Predation by Resident Fish on Juvenile Salmonids in John Day Reservoir: Final Report, 1983-1986: Volume 1, Final Report of Research.,1988. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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