9391

• UCREFRP Catalog Number: 9391
• Author: Watts, G., W. R. Noonan, H. R. Maddux and D. S. Brookshire.
• Title: The Endangered Species Act and Critical Habitat Designation
• USFW Year: 1997.
• USFW - Doc Type: An Integrated Biological and Economic Approach.
• Copyright Material: NO

demand on behalf of the fishes by bringing proposed structural water delivery projects on-line
earlier than previously planned, and accelerating ongoing conversion from agricultural to
municipal and industrial uses. The second scenario, the conservation scenario (CO), in addition
to some accelerated construction of water delivery projects, assumes that increased water
demands are partially met by reducing per-capita water consumption through a series of water
conservation measures. These measures include more efficient appliances and plumbing as well
as xeriscaping.

TABLE 2
Regional Direct Impacts in Virgin River for Critical Habitat1 (1990$ Millions)

Year Sector
Livestock Livestock Feed Fruits & Impacts
Vegetables
ST2 C03 ST CO ST CO Water CO
1995 --- --- --- --- --- --- --- -0.515
2000 -0.216 -0.216 -0.163 -0.163 --- --- --- -0.640
2005 -0.222 -0.216 -0.185 -0.163 -0.003 --- -2.927 -0.768
2010 -0.230 -0.223 -0.244 -0.204 -0.012 -0.006 -2.927 -0.901
2015 -0.225 -0.224 -0.217 -0.203 -0.008 -0.057 -3.477 -1.053
2020 -0.010 0.003 -0.058 0.020 -0.008 0.003 -3.477 -1.086
2025 -0.003 0.008 -0.017 0.051 -0.006 0.007 - 3.477 -1.078
2030 --- 0.010 --- 0.058 --- 0.008 - 3.477 -1.053
2035 --- -0.002 --- -0.013 --- -0.002 -3.4 77 -1.039
2040 --- -0.010 --- -0.053 --- -0.008 - 3.477 -1. 064

1. Critical Habitats are 50% of total direct impacts.
2. Construction Scenario
3. Conservation Scenario

Table 3 presents the Virgin River critical habitat direct and indirect impacts for sub-regional and

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