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    Effect of Thiamine Status on Probability of Lake Ontario Chinook Salmon Spawning in the Upper and Lower Sections of Salmon River, New York

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    Author
    Ketola, H. George
    Johnson, James H.
    Rinchard, Jacques
    Verdoliva, Francis J.
    Penney, Mary E.
    Greulich, Andreas W.
    Lloyd, Russell C.
    Keyword
    SWRA
    Journal title
    North American Journal of Fisheries Management
    Date Published
    2009-01-01
    Publication Volume
    29
    Publication Issue
    4
    
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    URI
    http://hdl.handle.net/20.500.12648/2277
    Abstract
    Consumption of thiaminase-containing forage fishes reduces egg and muscle thiamine content and impairs the spawning migration of Cayuga Lake (New York) rainbow trout Oncorhynchus mykiss. Because some Chinook salmon O. tshawytscha from Lake Ontario have been shown to produce eggs low in thiamine, we examined the relationship between the migration of Chinook salmon and the thiamine content of their eggs spawned in the lower and upper sections of the Salmon River, a major tributary to Lake Ontario, in 2003–2006. Eggs from the upper section of the river were collected from 79 salmon returning to the state hatchery 25 river kilometers from the mouth. Eggs from 25 salmon in the lower section were collected from redds or females angled on redds approximately 1–3 km from the mouth. For all years combined, we found the mean thiamine concentration in eggs spawned in the lower section to be significantly lower than that for eggs spawned in the upper section; however, the annual differences in thiamine content of eggs between the upper and lower sections were significant only in 2003 and 2006. Binary logistic regression showed that the odds of spawning in the upper section was increased by 96% (95% confidence interval, 21–217%) for every nanomole of increase in the thiamine content of eggs. Therefore, the migratory achievement of Chinook salmon was significantly dependent on their thiamine status.
    Citation
    Rinchard, J., Ketola, H.G., Johnson, J.H., Verdolisa, F.J., Penney, M.E., Lloyd, R.C., and Greulich, A.W. 2009. "Effect of Thiamine Status on Probability of Lake Ontario Chinook Salmon Spawning in the Upper and Lower Sections of Salmon River, New York." North American Journal of Fisheries Management 29(4): 895-902.
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    Brockport Environmental Science and Ecology Faculty Publications

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