@article{oai:soar-ir.repo.nii.ac.jp:00012289, author = {YAMAGISHI, HIROSHI}, issue = {2}, journal = {信州大学理学部紀要}, month = {Mar}, note = {Predation of mosquito larvae, Culex pipiens, by the guppy, Lebistes reticulatus PETERS, which has been recently acclimatized in hot springs in Japan, was studied under various experimental conditions. 1. Guppies could not survive in water of 35℃ and over, or at 10℃ and less. 2. At 25℃ guppies showed maximum predation of mosquito larvae. Adult guppies ate 21-91 mg of fourth instar larvae in 24 hours. These amounts correspond to 10-36 larvae in number when the larvae average 2.5 mg in weight per individual. At 30℃ the amounts of mosquito larvae eaten by adult guppies decreased from that at 25℃, but the decrease was less than that at 20℃. At 15℃ guppies ate few larvae and almost ceased growing. As a rule the quantity of larvae eaten by male guppies was less than that by femals. 3. Guppies could eat mosquito larvae in darkness as well as in light, though some decrease in amount of predation was observed. 4. Guppies ate mosquito larvae even when daphnids were available. There was slightly greater preference for daphnids than for mosquito larvae., Article, 信州大学理学部紀要 1(2): 79-92(1967)}, pages = {79--92}, title = {Ecological Studies on the Guppy, Lebistes reticulatus PETERS. II. Experiments on Predation of Mosquito Larvae by guppies}, volume = {1}, year = {1967} }