WAHLE, VREELAND, and LANDER: BIOECONOMIC CONTRIBUTION 



Table 7. — Theoretical catch of 1965- and 1966-brood hatchery coho salmon by region of recovery, type of fishery, 



and year of capture, 1967-1969.' 



Region 



Fishery type 



1967 



1965 brood 



1968 



Total 



1968 



1966 brood 



1969 



Total 



Ocean fisheries: 



British Coliimbla. . . . 

 Washington 



Oregon 



California 



Subtotal 



Freshwater fisheries: 

 Columbia River 



Total 



Commercial. . . 



Sport 



Commercial. . . 



Sport 



Commercial. . . 



Sport 



Commercial... 



Sport 



Commercial... 



Sport 18,739 



Commercial... 1,929 



All fisheries 20,668 



88,755 

 182,372 

 226,212 

 10i^,063 

 300, 004 



8,750 

 113,700 



88,755 

 182,372 

 226,212 

 104,063 

 300, 004 

 8,750 

 113,700 





 

 

 

 

 

 



38,821+ 

 171,035 

 136,016 



96,371 

 332,075 



8,393 

 86,573 



38,824 

 171,035 

 136,016 



96,371 



332,075 



8,393 



86,573 



295,185 

 728,671 



10,627 

 82,831 



295,185 

 728,671 



29,366 15,584 

 84,760 3,087 



275,799 

 593,488 



10,855 

 151,377 



275,799 

 593, J^8 



26,439 

 154,464 



1,117, 31** 1,137,982 18,671 1,031,519 1,050,190 



1/ Corrected for differential fincllp mortality and assuming no marking had taken place. 



annual payments using an interest rate of 3.5% .^ 

 This rate was the average 3- to 5-yr government 

 bond interest rate weighted by the total annual 

 capital outlay at all hatcheries from 1949 (incep- 

 tion of Columbia River Development Program) 

 through 1970. All outlays prior to this period 

 are assumed to be depreciated out completely. 

 The imputed capital charge for each study hatch- 

 ery was apportioned among the broods and 

 species present by using the percentage of time 

 spent caring for each group of fish. The total 

 annual imputed capital charges for the 1965- 

 and 1966-brood coho salmon are $271,600 and 

 $235,600, respectively. 



Operation 



The operation and maintenance costs at each 

 hatchery are divided into two categories. They 

 are fish food and drugs and other operational 

 costs. The cost of fish food and drugs is appor- 

 tioned between each brood and species according 

 to the pounds of each brood and species pro- 

 duced. The operational costs other than food and 

 drugs include costs for labor, personal services, 

 travel, transportation of items, communication 

 services, equipment, supplies and materials, 

 and administration. These costs are allocated to 

 each brood and species in the same manner as 

 the capital costs. The operational costs appor- 



^ The "annual imputed capital charge" is the estimated 

 cost of government funds over the life of the project. 



tioned to the 1965- and 1966-brood coho are 

 $1,020,700 and $991,000, respectively. The total 

 costs applicable to rearing the 1965- and 1966- 

 brood coho are then $1,292,300 and $1,226,600, 

 respectively. 



Benefits 



To determine the benefit provided by hatchery 

 releases of 1965- and 1966-brood coho salmon to 

 the commercial and sport fisheries, an estimate 

 of the net economic value to these fisheries must 

 be made. Additional information is critically 

 needed to improve the basis for estimating 

 values for fishery resources; however, the 

 values used in this report are based on the best 

 information now available and the limitations of 

 these values are discussed. 



Commercial 



Ex-vessel market prices have been used to 

 represent estimated net values for commercially 

 caught fish. There are two quite different rea- 

 sons why this method can provide satisfactory 

 estimates. 



The Columbia River salmon production from 

 hatcheries included in this study provide only a 

 portion of the total salmon production. Use of 

 the ex-vessel price in the standard benefit-cost 

 technique would require the deduction of all 

 associated costs. However, excess capacity 

 typically exists in the fishing sector, so little or 



153 



