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Full-Text Articles in Life Sciences
Resident Fish Community Impacts On Stocked Rainbow Trout Ecology In 15 Eastern Washington Lakes, Kevin Mahoney
Resident Fish Community Impacts On Stocked Rainbow Trout Ecology In 15 Eastern Washington Lakes, Kevin Mahoney
EWU Masters Thesis Collection
"The principal purpose of this research was to analyze the effects of resident fish communities and lake habitat on energy source use and trophic position of stocked rainbow trout. Stable isotope analysis was used to accomplish this goal, with stable carbon isotope ratios indicating the source of carbon, pelagic or littoral, in each species' diet and stable nitrogen isotope ratios determining species' relative trophic positions. The research was conducted in 15 eastem Washington State lakes, all stocked with rainbow trout for sport fishing purposes. I found wide confidence intervals around the % estimated littoral carbon in most of the lakes. …
Factors Affecting Growth And Condition Of Stocked Rainbow Trout In Eastern Washington Lakes, Tamara Knudson
Factors Affecting Growth And Condition Of Stocked Rainbow Trout In Eastern Washington Lakes, Tamara Knudson
EWU Masters Thesis Collection
"Rainbow trout growth and condition were examined in 17 ecologically diverse lakes from which physical, limnological, and biological parameters were sampled. Parameters were correlated with rainbow trout growth and condition to identify factor(s) that predict rainbow trout growth and condition across eastern Washington lakes stocked annually with rainbow trout fry. We tested the hypothesis Ho: the environmental variables examined do not predict rainbow trout growth and condition. Data were natural log transformed for better fit, and were analyzed by season. Several models were identified using stepwise multiple regression analysis and general linear modeling which significantly predicted trout growth or condition …