Oklahoma Water Resources Center

In-stream Flows

Simply put, in-stream (environmental) flow is the amount of water flowing in a creek, stream, or river.

Maintaining an optimum flow level is necessary for recreation, agriculturalists, and the species living in and around the water body.

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Resources

Gone with the Flow: How a Little Fish Is Emblematic of Big Problems in Great Plains Rivers (by Shannon Brewer in "The Lateral Line" (Volume 35(1) October 2014))

What are Environmental Flows?  a short paper by Dr. Don Turton.

Gido Keith B.; Dodds Walter K.; Eberle Mark E.  2010. Retrospective analysis of fish community change during a half-century of landuse and streamflow changes.  Journal of the North American Benthological Society  29 (3):  970-987.

Oregon State University (2011, November 18). Great Plains river basins threatened by pumping of aquifers. ScienceDaily.

 

Research Projects

SW-GW_Interactions

We have a limited understanding of the temperature tolerances of stream fishes and how groundwater-surface water interactions mediate stream temperatures. This is particularly significant to populations that reside below dams. Read more...
Dr. Shannon Brewer - Natural Resource Ecology & Management)
FlowArbuckle

Changes to the fish assemblage from 15 streams of the Arbuckle Mountains and Ozark Highlands will be determined in order to understand the influence of flow alteration. Also, a temperature model will be developed to predict how the fish assemblage will be influenced by increases in temperature. Read more...
Dr. Shannon Brewer - Natural Resource Ecology & Management)

AR-Red_CC

A physics-based hydrologic model that simulates streamflow using high-resolution radar data will be used to capture patterns in precipitation variability. The findings can be used to develop adaptive-management strategies for the conservation and sustainability of fish and wildlife. Read more...
Dr. Shannon Brewer - Natural Resource Ecology & Management)

EcohydroCC

This synthesis of instream models will address regional needs to help understand the effect of climate change and land management on hydrology and associated fish assemblages. Read more...
Dr. Shannon Brewer - Natural Resource Ecology & Management)

Brewer-stream

Low-flow conditions can be stressful for fishes, but how do their populations respond to habitat changes resulting from flow reductions?  Read more...
Dr. Shannon Brewer - Natural Resource Ecology & Management)

Brewer-ARS

This study will determine how environmental factors interact to determine egg buoyancy, transport, developmental rate, and hatching success of the endangered Arkansas River shiner.  Resulting data will help identify areas that are likely to currently support successful Arkansas River shiner reproduction.  Read more...
Dr. Shannon Brewer - Natural Resource Ecology & Management)
Brewer-mena crayfish

The objectives of this study are to determine the distribution and abundance of crayfish species in streams of southeast Oklahoma and to determine movement patterns and survival of crayfish in response to environmental parameters.  Read more...
Dr. Shannon Brewer - Natural Resource Ecology & Management)

Long-LeeCreek

The native fishes of Lee Creek are unique, particularly the endangered longnose darter. Studies are looking at how a proposed upstream dam in Arkansas may alter their habitat. 
(Dr. Jim Long - OK Cooperative Fish and Wildlife Research Unit, Natural Resource Ecology and Management)

Document Actions
More Resources:

presentation

 


Associated Pages:

Water Law & Policy

 

Rivers & Streams

 


External Resources:

Water Plan Supplemental Report: Instream Flow Issues & Recommendations

 

Oklahoma Stream Depletion Tool

 

Oklahoma Water Science Center: Real-Time Streamflow Data

 

Instream Flow Council

 

The Nature Conservancy