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Zooplankton Size Selection Relative to Gill Raker Spacing in Rainbow Trout

Citation

Phaedra E Budy, Roger W Schneidervin, and Tyler Haddix, Zooplankton Size Selection Relative to Gill Raker Spacing in Rainbow Trout: .

Summary

Rainbow trout Oncorhynchus mykiss are one of the most widely stocked salmonids worldwide, often based on the assumption that they will effectively utilize abundant invertebrate food resources. We evaluated the potential for feeding morphology to affect prey selection by rainbow trout using a combination of laboratory feeding experiments and field observations in Flaming Gorge Reservoir, Utah–Wyoming. For rainbow trout collected from the reservoir, inter–gill raker spacing averaged 1.09 mm and there was low variation among fish overall (SD = 0.28). Ninety-seven percent of all zooplankton observed in the diets of rainbow trout collected in the reservoir were larger than the interraker spacing, while only 29% of the zooplankton found [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS export <br> On - Tue May 10 09:42:23 CDT 2011

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Title Citation Zooplankton Size Selection Relative to Gill Raker Spacing in Rainbow Trout

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