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Filtering by: Creator Hewkin, James A. Creator West, Duane C.

Reduction of salmonid predators by chemical treatment

Creator:

Reeher, James A., Hewkin, James A., West, Duane C., and Oregon. State Game Commission. Fishery Division

Abstract:

The upper drainage of the John Day River system produces summer steelhead and spring chinook salmon. The fish are generally confined to the main stem and its tributaries above Prairie City. The spawning and rearing areas are comparatively free of undesirable fish species, but salmonid smolts migrating downstream must travel...

Resource Type:

Technical Report
Habitat improvement to enhance anadromous fish production [Clear Creek]

Creator:

West, Duane C., Reeher, James A., Jr., Hewkin, James A., and Oregon. State Game Commission. Fishery Division

Abstract:

Clear Creek, tributary of North Fork John Day River, is a mountain stream located in the Blue Mountains of eastern Oregon. It joins Granite Creek about 1.5 miles below the old abandoned mining town of Granite. Gravel removed from Clear Creek by gold dredging activity was replaced in a 3.37-mile...

Resource Type:

Technical Report
Habitat improvement to enhance anadromous fish production [Tex Creek]

Creator:

West, Duane C., Reeher, James A., Hewkin, James A., and Oregon. State Game Commission. Fishery Division

Abstract:

The project objectives were to determine the possibility of raising the subterranean water in adequate amounts by installation of an underground weir; to determine what type of structure would be most feasible; and to formulate a biological evaluation program if the first two objectives were accomplished. Tex Creek, tributary to...

Resource Type:

Technical Report