Effects of Zooplankton Grazing on the Suppression of Harmful Algal Blooms by the Rotifer Brachionus calyciflorus in Freshwater Ecosystems KCI

Title
Effects of Zooplankton Grazing on the Suppression of Harmful Algal Blooms by the Rotifer Brachionus calyciflorus in Freshwater Ecosystems
Author(s)
백승호; 홍성수; 송신영; 이혜옥; 한명수
KIOST Author(s)
Baek, Seung Ho(백승호)
Publication Year
2009-01
Abstract
To study the influence of the rotifer Brachionus calyciflorus on harmful algal bloom suppression, we focused on assessing the rotifer's abilities using several prey species : Microcystis aeruginosa, Synechocystis sp., Chlorella vulgaris and Coelastrum sp. of the warm-weather species and the cold-weather centric diatom Stephanodiscus hantzchii. Grazing effects and growth rates of rotifers B. calyciflorus were 94.5% and 1.29d−1 , respectively, for Synechocystis sp., 87.4% and 0.60d−1 , respectively, for M. aeruginosa, 95.2% and 0.65d−1 , respectively, for C. vulgarisTM , 78.6% and 0.45d−1 , respectively, for C. vulgaris UTEX., 86.5% and 0.99d−1 , respectively, for Coelastrum sp., and 82.6% and 0.40d−1 , respectively, for S. hantzchii. Of these, although the growth of Synechocystis and Coelastrum was effectively suppressed by rotifer grazing, efficient suppression effects on Stephanodiscus blooms were unexpected. The present study revealed that reproduction of B. calyciflorus was greatly influenced by its food types in the initial stages and the efficiencies of bio-agents as sole food sources vary depending on the target algae and the agent.
ISSN
2288-1115
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4344
Bibliographic Citation
생태와 환경, v.42, no.1, pp.67 - 74, 2009
Publisher
한국하천호수학회
Keywords
rotifer Brachinus calyciflorus; grazing effect; harmful algae suppression
Type
Article
Language
English
Publisher
한국하천호수학회
Related Researcher
Research Interests

Marine Ecology,Marine Environment,HABs,해양생태,해양환경,적조

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