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The Different Growth Rate by Predation Risk in Larval Salamander, Hynobius leechii  

Hwang, Ji-Hee (Department of Animal Science, Sahmyook Universiy)
Chung, Hoon (Department of Animal Science, Sahmyook Universiy)
Publication Information
Korean Journal of Environment and Ecology / v.25, no.5, 2011 , pp. 666-672 More about this Journal
Abstract
This study examined the different growth rate of larval salamander Hynobius leechii by the predation risk. We collected salamander's eggs from Mountain Inwang. Eggs were treated by two different conditions: (1) cue - which had a predation risk three times a day; (2) no cue - which had no predation risk. Predation risk was conducted by using chemical cue from Chinese minnows. The chemical cue treatment started from the next day after the collection and ended one week after the hatching. Between the first week and the second week after the hatching we fed salamander larvae with tubifex ad. libitium. After the treatment phase, we measured snout - vent length of the each larva on the first week and the second week after the hatching. The results showed that there was a significant difference in the growth rate by the predation risk. From these results we found that predation risk can cause the different growth rate to the larval salamander and these changes could be affect their mortality.
Keywords
CHEMICAL CUE; LARVAL SALAMANDER; MORTALITY; CANNIBALISM;
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