Global occurrence of harmful cyanobacterial blooms and N, P-limitation strategy for bloom control = 유해 남조류의 세계적 발생현황 및 녹조제어를 위한 질소와 인-제한 전략

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Title
Global occurrence of harmful cyanobacterial blooms and N, P-limitation strategy for bloom control = 유해 남조류의 세계적 발생현황 및 녹조제어를 위한 질소와 인-제한 전략
Author(s)
Chi-Yong Ahn; Chang Soo Lee; J W Choi; S Lee; Hee-Mock Oh
Bibliographic Citation
Korean Journal of Environmental Biology, vol. 33, no. 1, pp. 1-6
Publication Year
2015
Abstract
Increased harmful algal blooms by cyanobacteria are threatening public health and limiting human activities related with freshwater ecosystems. Phosphorus (P) has long been suggested as a critical nutrient for cyanobacterial bloom through field research in Canada during the 1970s, proposing a P-based freshwater management guideline. However, recently, nitrogen (N) has also been highlighted as an impacting nutrient on cyanobacterial harmful algal blooms (CyanoHABs). Due to the intensive and frequent observation of Microcystis, this kind of paradigm shift from P limitation to season-dependent N or P limitation has an important implication for a dual nutrient management strategy in eutrophic freshwaters. Through recent international researches, general strategies to control CyanoHABs in lakes and reservoirs are as follows: a dual nutrient (N & P) reduction, wastewater collection and treatment, pre-treatment of influent water in buffer zones, dredging of sediment, reduction of residence time, algal collection, and precipitation and flocculation of cyanobacteria. In addition, sustainable and integrative freshwater algae management should be carried out, based on the ecological aspect, because cyanobacteria are not the target organism to be eradicated, but an essential microbial member in the freshwater ecosystem.
Keyword
cyanobacterial bloombloom controllimiting nutrientnitrogenphosphorus
ISSN
I000-0103
Publisher
Korea Soc-Assoc-Inst
DOI
http://dx.doi.org/10.11626/KJEB.2015.33.1.001
Type
Article
Appears in Collections:
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
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