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WSP10226
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Last modified
1/26/2010 2:57:52 PM
Creation date
10/12/2006 4:13:39 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8240.300.03
Description
San Juan River - Recovery Implementation Program - General Info
Basin
San Juan/Dolores
Water Division
7
Date
6/22/2001
Title
Final Environmental Assessment on Proposed Short-Term Low FlowTest Releases from Navajo Reservoir into the San Juan River
Water Supply Pro - Doc Type
EIS
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<br />c) <br />a <br /><::> <br />(:,.) <br />...... <br />00 <br /> <br />Response: <br /> <br />41. Comment: <br /> <br />Response: <br /> <br />Are these impacts (i,e" stranded and habitat desiccation) going to be <br />evaluated? <br />Although some natural reproduction takes place by rainbow trout, <br />essentially the only trout species in the Quality Waters portion of the <br />fishery, this section of the river is largely supported through the regular <br />stocking of fingerling rainbow trout, (The Quality Waters section is <br />identified by the New Mexico Game and Fish Department as the first 4 <br />miles of the fishery downstream from the dam,) Also, the reduction inflow <br />to 250 cfs, while reducing habitat for adult rainbow trout, actually <br />increases available habitat for fingerling trout; therefore, impacts to <br />young-of-the-year trout within this section of river would be negligible, <br />There may be some effect to young-of-the-year habitatfor brown trout, <br />primarily downstream of Citizen's Ditch, however, entrainment of small <br />fish in ditch diversions has much greater impact to small life stages than <br />would habitat loss within the river, <br /> <br />Reclamation needs to clearly define "significant trout losses" in the EA, <br />In addition, Reclamation should develop specific parameters to protect <br />against "significant trout losses" that if exceeded would require <br />temtination of the test. <br />Reclamation does not believe that "significant "trout losses will occur <br />within the Quality Waters section (identified by the New Mexico Game and <br />Fish Department as the first 4 miles downstream from the dam) of the <br />trout fishery, Reclamation is concerned that trout downstream of major , <br />diversions may be lost to some degree, The significance of this potential <br />loss is somewhat debatable, While there are "pockets" of trout (primarily <br />brown trout) downstream of Citizen's Ditch, public access to anglers is <br />extremely limited, Virtually all of the land on both sides of the river is <br />private and permission to access the river for recreational fishing is <br />required. Floatfishing does occur and is permissible under New Mexico <br />State law as long as the anglers do not leave their boat, Still, compared to <br />fisherman use upstream of Citizen's Ditch, recreational fishing below this <br />diversion is very low, <br /> <br />With only a few exceptions, losses to the trout population below Citizen's <br />Ditch would not likely result in significant losses in angler days, The <br />trout, in particular brown trout, are self sustaining due to successful <br />natural reproduction and recruitment, They are; however, not a native <br />species and were introduced for the recreational fisherman to use for their <br />enjoyment, <br /> <br />From an ecological standpoint, losses to this population are not as <br />significant as losses to native fish, although from a recreational fishing <br /> <br />22 <br />
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