Burbot Recent discoveries of burbot in the Green River at Flaming Gorge Reservoir in Utah have concerned wildlife biologists, who fear the burbot could decimate the sport fish population in what is recognized as one of the world's top brown trout fisheries, because it often feeds on the eggs of other fish in the lake like sockeye salmon. The Utah Division of Fish and Game has instituted a "no release" "catch and kill" regulation for the burbot in Utah waterways. However, the regulations have been found to be largely unenforceable. The town of Walker, Minnesota, holds an International Eelpout Festival every
Environmental issues with salmon 59 years of catch and escapement data of Bristol Bay sockeye to determine age and size at maturity trends attributable to the selectivity of commercial gillnet harvests. The study found that the larger females (>550 mm) of all age classes were most susceptible to harvest. The study suggests that smaller, younger fish were more likely to successfully traverse the gillnet fishery and reproduce than the larger fish. The study also found that the average length of sockeye harvested from 1946–2005 was 8 mm larger than the sockeye who escaped the gillnet fishery to spawn, reducing the fecundity of the average