Filters: Tags: M1-Fish (X)751 results (97ms)
Isolation between sympatric anadromous and resident threespine stickleback species in Mud Lake, Alaska
Biotic interactions in temporal trends (1992–2010) of organochlorine contaminants in the aquatic food web of Lake Laberge, Yukon Territory
Stock composition of age-0 Chinook salmon rearing in nonnatal U.S. tributary streams of the Yukon River
Yukon River Chinook salmon Oncorhynchus tshawytscha are described as having "stream-type" life histories. After emergence from river gravel, juvenile Chinook salmon feed and grow in tributary streams of the Yukon River throughout their first summer, overwinter in freshwater, and usually leave rearing areas for marine waters during the second spring/summer. Previous life history and distribution studies have shown that some age-0 Chinook salmon leave their natal streams and colonize downriver, nonnatal habitats for rearing and overwintering. A pilot study in 2006–2007 documented rearing of Canadian-origin Chinook salmon in downstream U.S. waters. A comprehensive three-year distribution study was funded by the Alaska...
Information specific to recreational fisheries in the Yukon Management Area in 2011 and preliminary information for 2012 is presented. Estimates of fishing effort, total catch, and harvest is summarized through the 2011 season. This information is provided to the Alaska Board of Fisheries (board), as well as to the general public and interested parties. Summaries of major fisheries within the area are detailed, including descriptions of the performance of these fisheries, regulatory actions by board, social and biological issues, and descriptions of ongoing research and management activities. The remote waters of the Yukon Management Area supported approximately 10,000 angler days of sport fishing in 2011. Freshwater...
An analysis of homogenization and differentiation of Canadian freshwater fish faunas with an emphasis on British Columbia
Categories: Publication; Types: Citation; Tags: A2-Management Protocols Potential Invasive Species, A2-Management Protocols-Potential Invasive Speceies, M1-Fish
Multi-year effects of high densities of sockeye salmon spawners on juvenile salmon growth and survival: a case study from the Exxon Valdez oil spill
Estimates of Chinook Salmon Passage in the Kenai River Using Split-Beam and Dual-Frequency Identification Sonars, 2010
Selected organic compounds and trace elements in streambed sediments and fish tissues, Cook Inlet Basin, Alaska
Connectivity among populations of pygmy whitefish () in northwestern North America inferred from microsatellite DNA analyses
available at publisher site.]
When king salmon enter the Yukon River on their spawning migration in mid June, over 25% of the population are infected with Ichthyophonus. The percent of infected fish remains relatively constant until the fish pass river mile 1,319 at Dawson, Y.T., then it drops to 13% when they reach river mile 1,745 at Whitehorse, Y.T. When the sexes are examined separately, slightly more females are infected than males (29% vs 22%). The percent of fish exhibiting clinical signs (diseased) is 2-3% when they enter the river, but increases to over 20% at river mile 715 near Tanana, AK. Disease prevalence within the population remains constant at > 20% until fish pass Dawson, then the percent of diseased fish drops to < 9% at Whitehorse....