are minor variations in some of the figures, especially for expenditure, from 

 those shown in the original references. 



DESCRIPTION OF STUDY AREAS 

 Warm-water reservoirs or lakes 



Ocean Lake , Wyoming (1, 2), is in the Riverton Irrigation Project on 

 the plains of the Wind River Basin. It is 6,1C0 acres in size. It occupies a 

 natural, saucer-shaped, shallow depression and is fed primarily by seepage and 

 return flows from the irrigation project. Water levels fluctuate very little. 

 Aquatic vegetation is abundant. 



Access is good and boat-rental facilities are available. About half 

 the fishermen using the lake during the study came from within 50 road-miles of 

 the lake. About S$ percent of the fishermen came from within 200 miles. 



Li order of abundance in the catch, black crappie, largemouth black 

 bass, bluegill, green sunfish, and burbot were taken. 



Type and period of coverage: Intensive checks, June 22 through 

 September 23, 19l*7, and June 2 through September 12, 19li8. Limited checks 

 during both winters. 



Period of estimates: Estimates of use and yield for entire year in 

 both 19U7 and 19l*8. 



Expenditures for equipment and annual items: Obtained in field. 



Other expenditure items: Transportation expenditures derived for both 

 summer periods and one winter period. The one winter -period transportation ex- 

 penditure applied in both winters. Trip expenditures determined in I9I48 for 

 both suamer and winter periods and applied to the respective periods in 19l>7. 



Lake Waloney, Nebraska (3, k)» is in the west-central portion of the 



