Effects of Turbine Operating Efficiency on Smolt Passage Survival

Autor:	Dilip Mathur, John R. Skalski, Paul G. Heisey
Rok vydání:	2002
Předmět:	Hydrology Ecology Operations research Hydroelectricity Retrospective analysis Weak association Environmental science Management Monitoring Policy and Law Aquatic Science Turbine Ecology Evolution Behavior and Systematics Kaplan turbine
Zdroj:	North American Journal of Fisheries Management. 22:1193-1200
ISSN:	1548-8675 0275-5947
DOI:	10.1577/1548-8675(2002)022<1193:eotoeo>2.0.co;2
Popis:	We conducted a retrospective analysis of data on the relationship between operating efficiency of Kaplan turbines and direct passage survival of salmonid smolts. A review of a key report instrumental in establishing ±1% turbine efficiency rule for operating Snake and Columbia river hydroelectric stations found a weak association (r 2 = 0.112) but also found misspecification of the turbine efficiency data. At four Snake and Columbia river dams, manipulative studies were performed to investigate the relationship between turbine performance and smolt passage survival, as estimated with balloon-tag releases and recoveries. At all sites, peak passage survival did not coincide with the observed turbine operating efficiency peak. The difference between maximum survival and survival at peak turbine efficiency was as much as 3.2%. However, at three sites, maximum survival was within the ±1% peak efficiency operating rule. A meta-analysis that used balloon-tag survival results from 11 different hydroprojec...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a36286067345a0123de41bd12d2b9dc0 https://doi.org/10.1577/1548-8675(2002)022<1193:eotoeo>2.0.co Zobrazit plný text záznamu Plný text