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The persistence of cyanobacterial (Microcystis spp.) blooms throughout winter in Lake Taihu, China
Ma, Jianrong1,2; Qin, Boqiang1,2; Paerl, Hans W.3; Brookes, Justin D.4; Hall, Nathan S.3; Shi, Kun2; Zhou, Yongqiang2; Guo, Jinsong1; Li, Zhe1; Xu, Hai2
2016-03-01
摘要Temperature is generally considered as a key factor controlling algal bloom formation. Previous studies have indicated that the bloom-forming cyanobacteria Microcystis spp. overwinters near the sediment surface and does not actively grow below 15 degrees C. However, satellite images and field collections from Lake Taihu, China have shown that Microcystis spp. blooms persisted when water temperatures were below 10 degrees C during winter, although their magnitudes were smaller than during periods of higher temperature. Winter Microcystis cells maintained low activity and were able to grow again when exposed to elevated temperatures (>= 12.5 degrees C). Hence, cyanobacterial blooms may appear year-round in eutrophic lakes. Temperature increases coupled with nutrient enrichment promoted the growth of cyanobacteria, while low temperature decreased the loss rate of Microcystis, allowing winter blooms to persist. High concentrations of overwintering vegetative cells may provide a large inoculum for blooms during warmer seasons. Controlling winter blooms may reduce their magnitude during the warmer seasons.
DOI10.1002/lno.10246
发表期刊LIMNOLOGY AND OCEANOGRAPHY
ISSN0024-3590
卷号61期号:2页码:711-722
通讯作者Qin, BQ (reprint author), Chinese Acad Sci, Key Lab Reservoir Aquat Environm, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China. ; Qin, BQ (reprint author), Chinese Acad Sci, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, Nanjing, Jiangsu, Peoples R China.
收录类别SCI
WOS记录号WOS:000372166500016
语种英语