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
Pain in fish that the absence of C-type fibres in cartilagenous sharks and rays indicates that signalling leading to pain perception is likely to be impossible, and the low numbers for bony fish (e.g. 5% for carp and trout) indicate this is also highly unlikely for these fish. Rose concludes there is little evidence that sharks and rays possess the nociceptors required to initiate pain detection in the brain, and that, while bony fish are able to unconsciously learn to avoid injurious stimuli, they are little more likely to experience conscious pain than sharks. A-delta-type fibres, believed to trigger avoidance reactions, are common