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Full-Text Articles in Aquaculture and Fisheries
Some Aspects Of Conditioning Behavior In Rainbow Trout, Salmo Gairdneri, Reed E. Harris
Some Aspects Of Conditioning Behavior In Rainbow Trout, Salmo Gairdneri, Reed E. Harris
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Effects of exercise, social facilitation, and delayed conditioning after vi exercise on the learning behavior of 5 to 6-inch rainbow trout, Salmo gairdneri, was measured in a conditioned avoidance response apparatus. The conditioning schedule contained an intertrial interval between alternate presentations of conditioned (light) and unconditioned (shock) stimuli. This randomization eliminated learning losses found in a previous study. Mean percentage avoidance, the measurement of learning, did not decrease significantly during conditioning trials. Exercised fish learned avoidance better than did non-exercised fish. Mean percentage avoidance for fish exercised at 0.5 ft/sec was 66.3; at 1.0 ft/ sec, 1.5 ft/sec, and …
On Models Of Commercial Fishing: The Traditional Literature Needs No Defenders, Vernon L. Smith
On Models Of Commercial Fishing: The Traditional Literature Needs No Defenders, Vernon L. Smith
Economics Faculty Articles and Research
Examines the models of commercial fishing. Representation of the variable K as a measure of crowding externality in the cost function; Change of the degree of fishing pressure without changing the variable K; Modification of the output of firms by varying the inputs.