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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 415 - 427 (13page)
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초록· 키워드
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Wetland ecosystems act as natural freshwater purification systems, but their rich biodiversity is being threatened with the introduction of the non-native freshwater snail, Pomacea canaliculata. This study was conducted to measure the herbivory effects and growth rate of P. canaliculata on common macrophytes: Ipomoea aquatica, Ipomoea batatas, Pandanus amaryllifolius and Cucurma longa. In separate experiments, the macrophyte species were served as the snails’ food as individual species and simultaneously.
In the individual treatment, the growth pattern and rate were based on the snails’ weight (mg/snail/day; n = 9) while the individual feeding consumption (mg/snail/day) was calculated from the leftover food. In the simultaneous treatment, the herbivory effects were evaluated as the feeding preference (%) from observations every two hours, while the total feeding consumption (mg) was calculated based on the food remaining after a 12-hour experiment (3 replicates: total n = 27). The results indicated that the growth pattern was significant for snails grazing on I. aquatica but not when other macrophyte species were eaten. The individual feeding consumption was higher when using I. aquatica than P. amaryllifolius but the growth rate for snails grazing on I. aquatica and P. amaryllifolius did not differ significantly. Meanwhile, the consumption of C. longa deterred the snails’ growth rate. Although the snails consumed all the macrophytes in the individual experiment, when given the species simultaneously, the feeding preference and total feeding consumption were directed significantly more toward I. aquatica than P.
amaryfollius and C. longa. We conclude that P. canaliculata is a generalist feeder given a limited choice of food but tends to show a strong feeding preference after being introduced to more food choices. These findings indicate that the introduction of P. canaliculata into wetland ecosystems may increase the herbivory effects on macrophytes, making these ecosystems vulnerable to the impact of eutrophication and biodiversity reduction.
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참고문헌 (59)
참고문헌 신청
Adedokun MA / 2019 / Preliminary assessment of water spinach(Ipomoea aquatica)and morning glory(Ipomoea asarifolia)leaves meals as non-conventional fish feed stuffs / Int J Fish Aquat Stud 7:446~450
Ahmad AM / 2019 / Biological control of aquatic macrophytes and ecological implication : a review / World J Pharm Med Res 5:12~30
Ali S / 2018 / Aquatic weed Ipomoea aquatica as feed ingredient for rearing rohu, Labeo rohita(Hamilton) / Egypt J Aquat Res 44:321~325
Arfan AG / 2015 / Comparative life cycle studies of Pomacea maculata and Pomacea canaliculata on rice(Oryza sativa) / Pak J Agric Sci 52:1075~1079
Arfan AG / 2014 / Distribution of two Pomacea spp. in rice fields of peninsular Malaysia / Annu Res Rev Biol 4:4123~4136
Ahmad AM / 2019 / Biological control of aquatic macrophytes and ecological implication : a review / World J Pharm Med Res 5:12~30
Ali S / 2018 / Aquatic weed Ipomoea aquatica as feed ingredient for rearing rohu, Labeo rohita(Hamilton) / Egypt J Aquat Res 44:321~325
Arfan AG / 2015 / Comparative life cycle studies of Pomacea maculata and Pomacea canaliculata on rice(Oryza sativa) / Pak J Agric Sci 52:1075~1079
Arfan AG / 2014 / Distribution of two Pomacea spp. in rice fields of peninsular Malaysia / Annu Res Rev Biol 4:4123~4136
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