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논 생태계에 서식하는 생물과 긴꼬리투구새우가 분비한 화학물질이 물벼룩의 생활사와 형태에 미치는 영향
나긍환 ( Geung Hwan La ),한은진 ( Eun Jin Han ),원두희 ( Doo Hee Won ),김정희 ( Jeong Hui Kim ),정쥬리 ( Jyoo Ri Jeong ),김현우 ( Hyun Woo Kim ) 한국하천호수학회(구 한국육수학회) 2015 생태와 환경 Vol.48 No.4
The aim of this study was to assess the interaction between Daphnia similis and various organisms related to the rice paddy ecosystem. We selected several organisms that are likely to prey on D. similis and evaluate predation rate as well as responses of D. similis to the chemical compounds exuded by these organisms. As a result of predation experiment, larval dragonfly (Anax parthenope) and Triops longicaudatus were clearly shown decreasing abundances of D. similis. Especially, Triops longicaudatus was observed higher feeding rates on D. similis than larval dragonfly. Chemical compounds from the vertebrates such as fish (Misgurnus anguillicaudatus, Pseudorasbora parva, Micropterus salmoides) and tadpole of frog (Rana nigromaculata) did not affect the life history of Daphnia. However, a potential predatory fish P. parva induced significantly longer tail spine in Daphnia. In addition, among the invertebrates (T. longicaudatus, A. Parthenope, Micronecta spp., Palaemon paucidens), chemical compounds exuded by T. longicaudatus induced shorter body and significantly longer tail spine in D. similis.