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Using single nucleotide polymorphism (SNP) multilocus genotypes for 31 sockeye salmon () populations from the Kvichak River, Alaska, we assessed the relative roles of geography (discrete boundaries or continuous distance) and ecology (spawning habitat and timing) driving genetic divergence in this species at varying spatial scales within the drainage.
The pilot was eventually able to observe the vessel's name as the F/V Steinbit.
However, we have continued a great deal of biological sampling that provides basic information on life-history patterns and population dynamics, and that is directly used in the conservation of the populations (e.g., abundance, size at age, and age structure of adult salmon).
We also have many sampling programs with no direct connection to fisheries management but that document the within-season and interannual patterns of the physical environment (e.g., temperature, solar radiation and lake level) and biotic communities (e.g., emerging insects, chlorophyll, zooplankton, non-salmonid fishes, juvenile salmon growth).
For the entire drainage, Mantel tests suggested a greater role of geographic distance on population divergence than differences in spawn timing when each variable was correlated with pairwise genetic distances.
Clustering and hierarchical analyses of molecular variance indicated that the largest genetic differentiation occurred between populations from distinct lakes or subdrainages.
The early period of research preceded Alaska’s statehood (in 1959), but the fisheries are now managed by the Alaska Department of Fish and Game (ADF&G).
Some of the sampling programs that were initiated by FRI (e.g., counting the salmon smolts leaving Iliamna Lake) have been taken over as routine operations by ADF&G.
Dishon, 22, of Palmer, stood on each rail of the boat and used their bodies to obscure the vessel's ADF&G numbers from view of the AWT aircraft.
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From the Alaska State Troopers: Location: Naknek Type: Commercial fish closed waters, hindering prosecution On 6/27/11 at 1215 hours, Bristol Bay Wildlife Troopers on aircraft patrol observed a drift gillnet vessel commercial fishing in closed waters outside the open Naknek section.