. Bulletin. Natural history; Natural history. 586 Illinois Natural History Survey Bulletin Vol. 32. Art. 4 units, is situated between the southern ends of the western and middle arms. Water is taken from the western (intake) arm via the short intake canal, used for cooling in the plant, and pumped into the middle (discharge) arm via the 1,100-m discharge canal. Water in the reservoir circulates, therefore, in a counterclockwise direction in these two arms. The eastern arm is not directly in- volved in the cooling cycle. When the power plant is of)erating, the temperature of the cooling water p
. Bulletin. Natural history; Natural history. 586 Illinois Natural History Survey Bulletin Vol. 32. Art. 4 units, is situated between the southern ends of the western and middle arms. Water is taken from the western (intake) arm via the short intake canal, used for cooling in the plant, and pumped into the middle (discharge) arm via the 1,100-m discharge canal. Water in the reservoir circulates, therefore, in a counterclockwise direction in these two arms. The eastern arm is not directly in- volved in the cooling cycle. When the power plant is of)erating, the temperature of the cooling water passing through the plant is elevated 7''-10°C, depending upon the volume of cooling water passing through the plant and the number of units in operation. Water in the entire length of the discharge arm is vertically isothermic due to the design of the discharge structure and the reservoir basin morphometry. Only minor decreases in temperature occur as the water flows from the plant discharge structure to the confluence of the discharge and east arms. Ambient water temperatures prevail in the southern two- thirds of the intake arm and in the eastern arm. Prior to making the field collections, the effects of an electrical shock on fish body temperatures were examined in the laboratory. An available stock of laboratory-raised bluegfills was used to avoid behavior-related activity. Ther- mocouples were secured in the vent of a bluegill and at five locations in a large aquarium in which the fish was confin- ed. The body temperature of the bluegill and the wa-ter temperature were monitored continuously until they. Fig 1—Locations of sampling stations for determining deep body temperatures of largemouth bass and carp at Lal<e Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural Histor
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
