Inventory and cataloging of sport fish and sport fish waters of western Alaska with emphasis on arctic char life history studies Annual performance report Completion report
Decicco AL. 1985. Inventory and cataloging of sport fish and sport fish waters of western Alaska with emphasis on arctic char life history studies Annual performance report Completion report. Pages 41-134. In Federal Aid in Fish Restoration and Anadromous Fish Studies Vol 26 Inventory and cataloging Study G-I-P-A. Alaska Department of Fish and Game, Sports Fish Division. Juneau, AK
This report summarizes data on the life history of char collected from 1981 through 1984 on the Noatak, Wulik, and Kivalina rivers in northwestern Alaska. Major char spawning streams in the Noatak include the Eli, Kelly, Kugururok, and Nimiuktuk rivers; all major tributaries of the Wulik and Kivalina rivers are used for spawning. Char remain in fresh water from one to six years prior to making their first seaward migration and return to freshwater to overwinter. Anadromous char spend summers feeding at sea and the winters in freshwater. Both summer and fall spawners are found in the rivers. Tag recoveries indicated movements between systems and demonstrated interchange of fish among the Wulik, Kivalina, and Noatak river systems. Char home to spawn but not to overwinter. Summer spawning takes place from mid-August through mid-September, and fall spawning from mid-September through freeze-up in October. Most char are summer spawners. Alternate-year spawning is the most common for repeat spawners.
- Type
- Book Chapter
- Authors
- Decicco, Alfred
- Date of Issue
- 1985
- Units
- CAKR , GAAR , KOVA , NOAT
- Keywords
- char, Eli River, Fish, Fisheries, Kelly River, Kivalina River, Kugururok River, Life History, Nimiuktuk River, Noatak National Preserve, Noatak River, Salvelinus spp., Tagging, Wulik River