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WSP02186
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Last modified
1/26/2010 12:35:02 PM
Creation date
10/11/2006 10:57:25 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.101.09
Description
Glen Canyon Dam/Lake Powell
State
AZ
Basin
Colorado Mainstem
Date
11/1/1995
Author
USDOI-BOR
Title
Biological Assesment of a One Time Test of Beach/Habitat-Building Flow from Glen Canyon Dam-Spring 1996
Water Supply Pro - Doc Type
Biological Opinion
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<br />,~~~}~) <br /> <br />:1 <br /> <br />The test flow may benefit HBC directly and indirectly. The high flow may <br />serve as a spawning cue for movement into the mouth of the Little Colorado <br />River. High 'flows are expected to result in additional drift, which may <br />provide additional food resources for staging HBC. Although some scour of the <br />benthos is anticipated by the event, rejuvenation of return current channels <br />and other mainstream backwater habitats should provide additional recruitment <br />habitat for young HBC in the summer of 1996. Backwater formation will occur <br />through the test flow prior to dispersal of young HBC from the Little Colorado <br />River into the mainstream in the late spring and summer, 1996. <br /> <br />;,1 <br /> <br />% <br /> <br />In conclusion, the test flow may affect HBC, but is not likely to adversely <br />affect HBC populations. <br /> <br />, ~, <br /> <br />';;,l <br />~,~i <br /> <br />;f:: <br /> <br />~~; <br />." <br />~ <br />~ <br />~ <br />~1 <br />",:i <br />:~,~ <br />,-." <br /> <br />!!~: <br />'"' <br />I;~( <br />\".~, <br /> <br />I,'.:, <br />> <br /> <br />t:/' <br /> <br />." <br /> <br />I:: <br /> <br />r.... <br /> <br />;...~ i <br />! .~;: ' <br />-.'" <br />," <br /> <br />i~>', <br /> <br />~-::i <br />V0 <br />~~, I <br />,~;;~I <br />, ' <br />, <br />.~~ <br />$.~~ <br />," <br /> <br />10 <br />
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