Difference between revisions of "Drift and Food Availability Studies"

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*[http://gcdamp.com/images_gcdamp_com/6/60/Miller_and_Judson-2013-DriftAndHydropeaking.pdf Miller, S.W., and S. Judson. 2014. Response of macroinvertebrate drift, benthic assemblages and trout foraging to hydropeaking.  Can. J. Fish. Aquat. Sci. 71: 675–687 ]
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*[https://www.gcmrc.gov/about/foodbase/Kennedy%20et%20al.%20FWB%20proofs.pdf Kennedy et al., 2013.  The relation between invertebrate drift and two primary controls, discharge and benthic densities, in a large regulated river.  Freshwater Biology]
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*[https://www.gcmrc.gov/about/foodbase/Cross%20et%20al.%202011_EA.pdf Cross et al., 2011.  Ecosystem ecology meets adaptive management: food web response to a controlled flood on the Colorado River, Glen Canyon.  Ecological Applications 21: 2016-2033. doi:10.1890/10-1719.1]
  
 
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Revision as of 15:56, 24 May 2018



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Affects of fluctuating flows on macroinvertebrated drift at Flaming Gorge Dam

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  • 15 mayfly genera, five Plecoptera (stonefly) genera, and three Trichoptera (caddisfly) genera were believed to have been extirpated from the river reach between the dam and Red Creek after the construction of Flaming Gorge Dam (Vinson 2001).
  • Twenty years after the installation of the selective water device, the number of aquatic insect taxa routinely collected upstream of Red Creek was as low as or lower than before partial thermal restoration. Gammarus lacustris was the only taxon that initially appeared to benefit from partial thermal restoration resulting from the addition of the selective water device in 1978.
  • Between 1993 and 1999, the tailwater macroinvertebrate community consisted of amphipods (61%), dipterans (32%), mayflies (4%), and Coleoptera (coleopterans or beetles) (3%).


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