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DigitalCommons@USU
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We employed a spatially explicit simulation model to assess growth rate potential for lake trout (Salvelinus namaycush) in Flaming Gorge Reservoir, Utah-Wyoming. Late-summer water temperatures and forage fish densities in 168 habitat cells were...
1999-01-01
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Few sources exist to draw generalizations about the incredibly diverse international river restoration community. Generalizations in the restoration literature tend to be grounded on individual experiences or logical conjecture. To fill this...
2006-01-01
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Nitrogen has been added to a forested 0.52 ha headwater catchment at Gårdsjön on the southwest coast of Sweden to study the ecosystem response to elevated nitrogen deposition. The catchment is dominated by naturally generated, mixed-age conifers,...
1995-01-01
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Concentrations of dissolved cations available for plant uptake and leaching are affected by many factors, including anion dynamics. To determine the relationship of dissolved cations to NO3−, soil solutions were sampled monthly with ceramic...
1994-01-01
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As the fields of ecology and conservation biology increasingly rely on models to address pertinent questions, there has been greater sharing of models among scientists. However, many models lack comprehensive documentation, especially in a...
2006-01-01
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Preliminary sampling in Bear Lake, Utah/Idaho, with bottom trawls and larval fish nets indicate
1985-01-01
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We performed two experiments to examine how temperature and nutrients interact to control dinitrogen (N2) fixation, chlorophyll a (Chl a) biomass, and community composition of periphyton in subalpine oligotrophic streams in the Sawtooth Mountains...
2006-01-01
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Historically, thousands of Snake River Sockeye salmon returned to the Sawtooth Valley to spawn. Evermann (1896) reported that the Sawtooth Valley Lakes were teeming with red fish. Bjornn (196~) estimated that 4,360 sockeye returned to Redfish Lake...
1993-01-01
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Many salmonids express multiple behavioural forms within the same population, representing an evolutionary adaptation to a heterogeneous environment. For bull trout, resident and migratory forms co-occur in streams, but it is unknown whether the...
2008-01-01
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Nitrogen (N2) fixation by blue-green algae is a significant source of fixed nitrogen for many natural and agricultural aquatic systems (FOGG et al. 1973). Laboratory studies have shown that pesticides used in aquatic habitats affect blue-green...
1978-01-01
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1. Nutrient limitatioti of phytoplankton growth and nitrogen fixation was studied during 1981-82 in tropical, high altitude Lake Titicaca, Peru/Bolivia (16° S longitude; 3812 m ASL). 2. In eleven 5 day in sitti growth bioassays nitrogen was the...
1985-01-01
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Using a series of field enclosure experiments, we investigated the trophic dynamics of Leptodora kindtii in Lake Mendota. Leptodora fed on both small and large Daphnia as well as on Diaphanosoma, Conochilus, and copepod nauplii. These results were...
1990-01-01
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