Habitat preferences and fishery oceanography [study conducted in the lakes of the Highland Lake District, northern Wisconsin, USA].
1980
Magnuson J.J. | Brandt S.B. | Stewart D.J.
Fishery oceanography has taken advantage of correlations between the catch of fish and easily measured oceanographic features, usually surface water temperature. Water temperature or other environmental features often provide better information for locating fishes that does geographic position. The response of fish to temperature gradients at the edge of the Gulf Stream near Cape Hatteras and to oxygen gradients in the highland lakes of northern Wisconsin exemplifies the importance and use of physical data in predicting fish distribution. Our inability to judge the perceptual world of fishes or unravel the interactions among the multiple factors determining the distribution of fishes are considered to be major impediments to refining present predictions. Arguments are made for applying laboratory methods to the solution of these problems. Potential applications of habitat preference data include locating desired fishes for harvest, stratifying waters for stock assessment, and setting criteria to screen species to be used for aquaculture.
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