Difference between revisions of "FOOD BASE"

• GCMRC Annual Reports page
• Aquatic Macroinvertebrates in Glen and Grand Canyons wiki page
• Algae and Aquatic Macrophytes wiki page
• Nutrients wiki page
• Humpback Chub wiki page
• Lees Ferry Rainbow Trout Fishery wiki page
• GCMRC Aquatic Food Base Lab
• USU Buglab
• USU Aquatic Macroinvertebrate Key
• Freshwater Macroinvertebrates of NY

Oviposition and Egg Desiccation Studies

Foodwebs and Bioenergetics Studies

Measuring Primary Production in the Lees Ferry Reach

The BugFlow Experiment

Citizen Science Insect Monitoring

Hyporheic Anoxia in the Lees Ferry Reach

Downstream Recovery of the Foodbase Community in Several Colorado River Tailwaters

Drift and Food Availability Studies

• 2012 Foodbase PEP
• 2004 Foodbase PEP
• 2001 Foodbase PEP

2026

• Drivers of food base diversity and productivity
• Stevens et al. 2026. Tributary-to-Mainstream Aquatic Macroinvertebrate Discontinuities in the Colorado River

2025

• Project F: Aquatic Invertebrate Ecology

2024

• Project F update: Lead decomposition, bat monitoring, aquatic insects

2023

• Hansen et al., 2023, Linking ecosystem processes to consumer growth rates—Gross primary productivity as a driver of freshwater fish somatic growth in a resource-limited river: Canadian Journal of Fisheries and Aquatic Sciences
• Metcalfe et al., 2023, Insectivorous bat foraging tracks the availability of aquatic flies (Diptera), The Journal of Wildlife Management
• Yard et al., 2023, Declines in prey production during the collapse of a tailwater rainbow trout population are associated with changing reservoir conditions: Transactions of the American Fisheries Society
• Molecular and modeling tools for tracking food base dynamics in changing environments
• A Decade of GPP Data in a Changing River
• Changes in epiphytic diatoms in the Colorado River downstream of Glen Canyon Dam following reduced flow variation

2022

• Project F: Aquatic ecology and food base monitoring
• Project F: Aquatic ecology and food base monitoring

2021

• Abernethy et al., 2021, Hydropeaking intensity and dam proximity limit aquatic invertebrate diversity in the Colorado River Basin: Ecosphere
• Macroinvertebrate Oviposition Habitat Selectivity and Egg-Mass Desiccation Tolerances: Implications For Population Dynamics In Large Regulated Rivers
• Distribution and Impacts of Benthic and Hyporheic Anoxia on the Colorado River Ecosystem Downstream from Glen Canyon Dam, Arizona
• Nutrients, Primary Production, and the Colorado River Foodbase

2020

• Stevens et al. 2020. Benthic discontinuity between an unregulated tributary and the dam-controlled Colorado River, Grand Canyon, Arizona. Annals of Ecology and Environmental Science.
• Metcalfe et al., 2020, Net‐spinning caddisfly distribution in large regulated rivers: Freshwater Biology
• Colorado River Aquatic Foodbase Studies at Tapeats Creek, Grand Canyon National Park, Arizona: A Benthic Discontinuity
• Citizen Science - podcast
• Metcalfe et al., 2020, Spatial population structure of a widespread aquatic insect in the Colorado River Basin--Evidence for a Hydropsyche oslari species complex: Freshwater Science
• TRGD: Trout Recruitment, Growth and Population Dynamics

2019

• Behn, K. E., and C. V. Baxter. 2019. The trophic ecology of a desert river fish assemblage: influence of season and hydrologic variability. Ecosphere 10(1):e02583
• Big Flood, Small Flood, Spring Flood, Fall Flood: HFE timing affects food base response? Presentation

2018

• Future CRE Foodbase Research and Management PPT
• Caddisfly outbreak on the Colorado River below Davis Dam Laughlin NV / Bullhead City AZ
• Colorado River Benthic Foodbase Studies in Glen and Grand Canyons PPT (Tapeats Creek study)
• Shedding light on aquatic insects of the Colorado River Basin with citizen science PPT
• Colorado River Benthic Foodbase Studies in Glen and Grand Canyons: Anoxic substrates and Tapeats Creek studies PPT
• Aquatic invertebrate drift patterns downstream of Colorado River Basin dams
• Sabo et al., 2018, Pulsed flows, tributary inputs, and food web structure in a highly regulated river: Journal of Applied Ecology

2017

• Walters et al., 2017, A digital reference collection for aquatic macroinvertebrates of North America: Freshwater Science, v. 36, no. 4, p. 693-697
• Muehlbauer et al. 2016. Deleterious effects of net clogging on the quantification of stream drift: Canadian Journal of Fisheries and Aquatic Sciences
• Fluvial Aquatic Ecology of the Colorado River (… especially Lees Ferry)
• Floods, Flows and the Aquatic Foodbase PPT
• The Grand Beyond: Aquatic Foodbase of the Upper Colorado River Basin

2016

• Kennedy et al. 2016. Flow Management for Hydropower Extirpates Aquatic Insects, Undermining River Food Webs. BioScience
• Grand Canyon Monitoring and Research Center Science Updates (BO Compliance, Trout Updates, Green Sunfish, Fisheries PEP, Partners in Science)
• Aquatic Foodbase of the Little Colorado River

2015

• Walters et al. 2015. Mercury and selenium accumulation in the Colorado River food web, Grand Canyon, USA. Environmental Toxicology and Chemistry
• Mercury and Selenium levels in the Grand Canyon foodweb
• Invertebrate drift in Glen Canyon 2007-2013

2014

• Citizen Science Insect Monitoring: A Powerful Tool for Detecting Ecosystem Change
• Science Updates - Recent Research on Sand, Bugs, and Fish
• Foodbase Enhancement Suggestions from Federation of Fly Fishers
• Foodbase Findings
• Low flows in Glen Canyon: preliminary geomorphic analysis of the potential effects on fish and food base (Melis)

2013

• Native and Nonnative Fish Populations of the Colorado River are Food Limited—Evidence from New Food Web Analyses
• Cross et al. 2013. Food-web dynamics in a large river discontinuum. Ecological Monographs
• Kennedy et al. 2013. The relation between invertebrate drift and two primary controls, discharge and benthic densities, in a large regulated river. Freshwater Biology.
• Wellard-Kelly et al. 2013. Macroinvertebrate diets reflect tributary inputs and turbidity-driven changes in food availability in the Colorado River downstream of Glen Canyon Dam. Freshwater Science.
• Miller and Judson. 2013. Responses of macroinvertebrate drift, benthic assemblages, and trout foraging to hydropeaking. Can. J. Fish. Aquat. Sci.
• GCMRC Update - Status of Resources and Sediment Conditions
• Annual Reporting Meeting: Foodbase Update
• Foodbase Update

2012

• Temperatures, TCD, and Food Base
• Final Report of the Aquatic Food Base Study and Protocol Evaluation Panel and PPT
• Long-term Food Web and Ecosystem Monitoring
• Foodbase Monitoring and Research: Response to PEP PPT
• GCMRC Updates and PPT
• Food Base 2011 KA2

2011

• 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(6), 2011, pp. 2016–2033

2010

• Rosi-Marshall et al., 2010, Short-term effects of the 2008 high-flow experiment on macroinvertebrates in the Colorado River below Glen Canyon Dam, Arizona: U.S. Geological Survey Open-File Report 2010-1031, 28 p.
• Wellard-Kelly, 2010, Resource Composition and Macroinvertebrate Resource Consumption in the Colorado River Below Glen Canyon Dam. Master's Theses.
• McKinney et al., 2010, Macroinvertebrate drift in the tailwater of a regulated river below Glen Canyon Dam, Arizona. The Southwestern Naturalist
• Cross et al. 2010. Invasion and production of New Zealand mud snails in the Colorado River, Glen Canyon. Biol Invasions
• Short-Term Effects of the 2008 High-Flow Experiment on Macroinvertebrates in Colorado River Below Glen Canyon Dam, Arizona
• Basal Resources in Backwaters of the Colorado River Below Glen Canyon Dam—Effects of Discharge Regimes and Comparison with Mainstem Depositional Environments

2009

• Blinn and Ruiter, 2009, "Caddisfly (Trichoptera) assemblages along major river drainages in Arizona," Western North American Naturalist
• Oberlin et al., 2009, Watershed Influence on the Macroinvertebrate Fauna of Ten Major Tributaries of the Colorado River through Grand Canyon, Arizona. The Southwestern Naturalist
• AIF: Grand Canyon Monitoring and Research Center (GCMRC) Update
• Grand Canyon Monitoring and Research Center updates by Program Managers

2003

• Haden et al. 2003. Benthic community structure of the Green and Colorado Rivers through Canyonlands National Park, Utah, USA. The Southwestern Naturalist

2001

• Shannon et al. 2001. Aquatic food base response to the 1996 test flood below Glen Canyon Dam, Colorado River, Arizona. Ecological Applications, 11(3), 2001, pp. 672–685.

2000

• Blinn et al. 2000. Environmental Conditions Associated with Cladophora glomerata, Oscillatoria spp and Miscellaneous Algae, Macrophytes, and Bryophytes (MAMB). Report to GCMRC.

1999

• Oberlin, G. E., J. P. Shannon, and D. W. Blinn. 1999. Watershed influence on the macroinvertebrate fauna of ten major tributaries of the Colorado River through Grand Canyon, Arizona. Southwestern Naturalist 44:17–30.
• Haden, G. A., D. W. Blinn, and J. P. Shannon. 1999. Driftwood: an alternative habitat for macroinvertebrates in a large southwestern river. Hydrobiologia 397:179–186.
• Oberlin et al. Watershed influence on the macroinvertebrate fauna of ten major tributaries of the Colorado River through Grand Canyon, Arizona. The Southwestern Naturalist 44(1):17-30.

1998

• Stevens, L. E., J. P. Shannon, and D. W. Blinn. 1998. Colorado river benthic ecology in Grand Canyon, Arizona, USA: dam, tributary and geomorphological influences. Regulated Rivers.
• Blinn et al. 1998. Algal ecology in the tailwater stream communities: The Colorado River below Glen Canyon Dam, Arizona. J, Phycol. M, 734-740 (1998)
• Stevens et al. 1998. Chironomidae (Diptera) of the Colorado River, Grand Canyon, Arizona, USA, II: factors influencing distribution. Great Basin Naturalist: Vol. 58: No. 2, Article 2

1997

• Stevens, L. E., J. P. Shannon, and D. W. Blinn. 1997. Colorado River benthic ecology in Grand Canyon, Arizona, USA: dam, tributary and geomorphological influences. Regulated Rivers: Research and Management 13:129–149.
• Shaver et al. Effects of suspended sediment and desiccation on the benthic tailwater community in the Colorado River, USA. Hydrobiologia 357: 63–72, 1997.
• Stevens et al. 1997. Colorado River benthic ecology in Grand Canyon, Arizona, USA: Dam, tributary, and gomorphological influences. Regulated Rivers: Research and Management, Vol. 13, 129–149 (1997)

1994

• Shannon et al. 1994. Trophic interactions and benthic animal community structure in the Colorado River, Arizona, U.S.A. Freshwater Biology 31(2):213 - 220.

1991

• Haury 1991. Zooplankton of the Colorado River: Glen Canyon Dam to Diamond Creek
• Blinn and Cole. 1991. Algal and Invertebrate Biota in the Colorado River: Comparison of Pre- and Post-Dam Conditions. In Colorado River Ecology and Dam Management.

1990

• Blin and Cole, 1990, Algal and Invertebrate Biota in the Colorado River: Comparison of Pre- and Post-Dam Conditions

1981

• Carothers and Minckley. 1981. A survey of the aquatic flora and fauna of the Grand Canyon: A Survey of the Fishes, Aquatic Invertebrates and Aquatic Plants of the Colorado River and Selected Tributaries form Lee Ferry to Separation Rapids. Final Report to DOI

1959

• Woodbury et al. 1959. Ecological Studies of the Flora and Fauna in Glen Canyon. Anthropological Papers (Glen Canyon Series Number 7) ,40. Salt Lake City, Ut: University of Utah Press.

The interaction of fish, foodbase, and temperature

Fish occupying warmer water have higher metabolic demands than individuals in cooler water, and if these demands increase concurrently with a seasonal decline in prey availability, then growth rates may be reduced. [2]

• Gammarus, blackflies, and midges fuel fish production below Glen Canyon Dam.
• Blackflies and midges respond positively to spring HFE's. Gammarus show little response to fall or spring HFEs.
• Mud Snails were introduced below Glen Canyon Dam around 1995.