![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjES1eJg57YZ556KSZEnoruT7DgAKoBXTbE9ROumg6MPi-P1DTlVlv51JlF347v4HxhzKxnqJmuQfyQs4gdI67-WscggcZycuFhh90r5_4frF4-Uw39O8TI3akrDdilTlP-TLCamg/s320/USGS+ofr+2010-1075.jpg)
A new report by the USGS finds that "backwaters may represent a sink for organic matter that enters from the main channel and that stable discharge, by lengthening water turnover times, will likely increase organic matter retention." [right, cover photo from USGS report]
Ref: Behn, K.E., Kennedy, T.A., and Hall, R.O., Jr., 2010, Basal resources in backwaters of the Colorado River below Glen Canyon Dam; effects of discharge regimes and comparison with mainstem depositional environments: U.S. Geological Survey Open-File Report 2010-1075, 25 p.
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