|材料类型：||文献, 政府刊物, 州政府或者省政府刊物, 互联网资源|
|文件类型：||书, 计算机文档, 互联网资源|
Klaus G Wuttig; Alaska. Division of Sport Fish.; Alaska. Division of Commercial Fisheries.
|注意：||"Alaska Department of Fish and Game, Divisions of Sport Fish and Commercial Fisheries"--Cover.
|描述：||iv, 42 p. : ill., maps ; 28 cm.|
|详述：||This item was harvested from the Fish and Game web site: http://www.sf.adfg.state.ak.us/FedAidPDFs/fds07-07.pdf in March 2007 for the Alaska State Publications Program; remote access available via StaticURL.|
|丛书名：||Fishery data series, no. 07-07.|
|责任：||by Klaus G. Wuttig.|
The purpose of this study in 2002 was to collect length and age composition data from the Arctic grayling population in portions of the upper Gulkana River, to compare length and age composition estimates with historic data collected in 1990 to 1992, and to determine if the management objective of providing a sport fishery where large fish = 320 mm FL could be caught with regularity was being met.