N 81.3 KEMA CREEK (lake Nerka) 



LOCATION: 59*3l*'00" N. 158*^5 '24" W. 



PREVIOUS NAMES OR NUMBERS: 



U.S.G.S. MAP: Dillingham, Alaska, 1:250,000, I95I 



PHYSICAL DESCRIPTION 



TOTAL LENGTH: 3-2 miles 



LENGTH ACCESSIBLE TO SAIMON: 3.2 miles (Scme years less, depending on 

 "beaver dams) 



AVERAGE VTEDTH: 22' (Lower part) RANGE: 12 '-40' 



AVERAGE DEPTH: 15" RANGE: 10"-i^2" (Midstream) 



TOTAL ACCESSIBLE SPAWNING AREA: 8.53 acres 



POTEIWIAL SPAWNING AREA: 82^ j J.O acres 



BOTTOM QUALITY: 90^ gravel, 10^ mud 



WATEFISHED: k sqtiare miles. Drains extensive sloping tundra area vith low 

 hills on upper east side. Willows along shore at mouth. Much beaver 

 activity. 



GRADIENT: 



WATER VELOCITY: Average = 2.0 fps. 



Range = 0. 5-2.5 fps. 



YLOti: hi. 3 cfs. (Aug. IH, I960). Medium RMiCiE: 

 water level. Flow station one- half 

 mile upstream from movrfch. 



AIR TEMPERATURE: 13-3° C. (Aug. I8, I96O) 



WATER TEMPERATURE: 12.2° C. (Aug. I8, 1960)j 10.1° C. (Aug. 19, I962) 



POOLS AND RIFFLES: Several wide pools behind beaver dams. 



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