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Fish Assemblages and Genetic Stock Structure of Salmon in Bering Land Bridge National Preserve

出版	Alaska Department of Fish and Game, Division of Sport Fish, 2021
URL	http://books.google.com.hk/books?id=hRWizgEACAAJ&hl=&source=gbs_api

註釋Beginning in August 2021 and operating through June 2024, the Alaska Department of Fish and Game (ADF&G), Division of Sport Fish, in partnership with the Division of Commercial Fisheries Genetics Laboratory and the National Park Service, will inventory stream fish assemblages and associated habitats in a 29,180 km2 study area of watersheds draining Bering Land Bridge National Preserve on the northern Seward Peninsula. Staff identified 142 potential sample sites on small wadeable (124 "headwater" sites) and intermediate sized (18 un-wadeable sites) streams of which we anticipate sampling at least 80 of the headwater streams and 10 of the intermediate un-wadeable streams. Project staff also identified four critical stream systems that will be prioritized and investigated more intensively throughout the study due to their contributions to regional subsistence use, fisheries, and ecology combined with limited current understand or knowledge on them: Nuluk River, Arctic River, Serpentine River, and Nugnugaluktuk River. At each site, prior to electrofishing, crews will collect data describing location, water quality, stream characteristics, aquatic habitat, and riparian vegetation. Fish will be collected primarily using backpack and raft mounted electrofishing equipment but opportunistic sampling may involve angling, rotary screw traps, fyke nets, gillnets, minnow traps, and aerial observations will be used as supplemental sampling methods. Anadromous fish assemblage data collected will be used to nominate waters to the State of Alaska's Catalog of Waters Important for the Spawning, Rearing or Migration of Anadromous Fishes (Anadromous Waters Catalog, AWC), or to update fish life stage information for waters already listed in the AWC. All sampling data will be available via the ADF&G Alaska Freshwater Fish Inventory (AFFI) online mapping application.