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1 <br />1 <br /> <br />1 <br />r <br />1 <br />1 <br /> <br />1 <br />1 <br />1 <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />1 <br />recreation will be tempered by potential increases in angling opportunities as a result of <br />increased water left in streams for fish recovery purposes. <br />The method of incorporating these four direct impacts into the I-O model is to introduce a <br />reduction in the allocation of water to agriculture, electric power, and recreation which use water <br />directly and translate into a reduction in output in those sectors, and to determine the amount of <br />economic activity in the construction sector that will be forgone due to canceled water <br />development projects. <br />D. Sharing Methods and Procedure <br />The objective of the present study is to determine the effects on tribal economies of actions <br />undertaken on behalf of the four endangered fishes. The direct impacts occur both on and off <br />tribal lands, and so the total impacts (direct plus indirect) will be felt on and off tribal lands. As <br />discussed earlier, the regional economy consists of tribal and non-tribal activities in the 10- <br />county region. Actions taken on behalf of the endangered fishes affect both areas. <br />The technique to determine the impacts to the tribal economies is to "share" the tribal <br />consequences from the total economic consequences in the 10-county region. The task is to find <br />a means of delineating the tribal economies' share of the economy of the entire region. Two <br />approaches to this sharing procedure are reported here. These two approaches serve to bracket <br />the results. <br />Population-based approach. The first approach is to use the share of population on tribal lands in <br />the region. This population-based approach will likely overestimate the actual economic <br />consequences given that the unemployment rate (see Table 3-D-1) on tribal lands is above the <br />average for the region as a whole. Sharing on the basis of population implicitly assumes that the <br />tribal economies are representative of the average for the region. Since the unemployment rate <br />on the tribal lands is above the regional average, the level of economic activity is lower than the <br />22 <br />