지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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This study is measured the change of chlorophyll-a concentration and phytoplanktondensity, the grazing rates (GR) and pseudofaeces production (PFP), by grazing of freshwaterapple snail, Pomacea canaliculata, to investigated that the snails are able to control of phytoplanktonbloom. The experiments are performed to evaluate the GR and PFP at different conditionssuch as incubation time (0, 2, 4, 6, 8, 10 and 12 hr), shell height (1.0 to 4.0 cm, n=108), snaildensity (1, 1.5, 2.5, 3.5 and 5 indiv. L-1) and food concentration (200, 400, 600, 800 and 1000 μg L-1).
Regarding feeding time, the highest GR (2.5 L. gAFDW-1 h-1) and PFP (15.3 mg AFDW-1) showedat 4 hr after snail stocking, respectively. The snail, smaller than 1.5 cm in body size, showed thehighest of GRs (2.54 L. gAFDW-1 h-1) for the initial period (2 hr of stocking), compared to thosegreater than 1.5 cm, which showed a stable FR, higher than 0.099 L. gAFDW-1 h-1. Upon snaildensity effect, the density of 5 indiv. L-1 induced the most effective inhibition on phytoplanktonbiomass with the highest PFP. On the food concentration, the highest GR (0.54 L. gAFDW-1 h-1)and PFP (8.5 mg gAFDW-1) were induced at the level of 600 μg L-1, respectively. We checked thatit is possible to control of phytoplankton bloom by the grazing of apple snail as well as Reeve.
However, it required a through research for the remove of pseudofaeces and 2nd problem by thedecomposition of the organic materals.
목차
등록된 정보가 없습니다.
참고문헌 (21)
참고문헌 신청
Bontes BM. / 2007 / Functional response of Anodonta anatine feeding on a green algae and four strains of cyanobacteria, differing in shape, size and toxicity / Hydrobiologia
Carmichael WW. / 1899 / Toxins of freshwater algae. pp. 121-147. In Handbood of Natural Toxins(Tu AT ed. ). Marcel Dekker / New York
Clench WJ. / 1965 / The genus Viviparus(Viviparidae)in North America / Occasional Paper Mollusk 2 : 385 ~ 412
Dawen Z. / 2007 / Bioaccumulation of the hepatotoxic microcystins in various organs of a freshwater snail from a subtropical Chinese lake, Taihu Lake, with dense toxic Microc
Hunt RJ. / 2005 / The effects of nutrients and zooplankton community structure on phytoplankton growth in a subtropical Australian reservoir : An enclosure study / Limnologic
Carmichael WW. / 1899 / Toxins of freshwater algae. pp. 121-147. In Handbood of Natural Toxins(Tu AT ed. ). Marcel Dekker / New York
Clench WJ. / 1965 / The genus Viviparus(Viviparidae)in North America / Occasional Paper Mollusk 2 : 385 ~ 412
Dawen Z. / 2007 / Bioaccumulation of the hepatotoxic microcystins in various organs of a freshwater snail from a subtropical Chinese lake, Taihu Lake, with dense toxic Microc
Hunt RJ. / 2005 / The effects of nutrients and zooplankton community structure on phytoplankton growth in a subtropical Australian reservoir : An enclosure study / Limnologic
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