Date of Award
Master of Science
Large and small bluegill, Lepomis macrochirus, were exposed to homogena tes of Lophopodella carteri, an ectoproct that contains substances toxic to some gilled vertebrates. Oxygen consumption tests on the excised gill tissues of the bluegill indicated that the ectoproct toxins caused a lowering of oxygen consumption of the gill tissues. Oxygen consumption of the gill tissues of the smaller fish was reduced to a greater extent than that of larger fish. An inverse relationship was found be tween the temperature of the medium and the period of time for death to occur. It is proposed that the toxins cause physiological damage to gill tissues and reduce their ability to conduct aerobic oxidation and thus ionic transport.
Green, Barbara Harper, "Effects of the toxins of the ectoproct, Lophopodella carteri, on oxygen consumption in gill tissues of the bluegill, Lepomis macrochirus" (1975). Master's Theses. 379.