Dynamics of cyanobacterial bloom formation during short-term hydrodynamic fluctuation in a large shallow, eutrophic, and wind-exposed Lake Taihu, China

2013 ◽  
Vol 20 (12) ◽  
pp. 8546-8556 ◽  
Author(s):  
Tingfeng Wu ◽  
Boqiang Qin ◽  
Guangwei Zhu ◽  
Liancong Luo ◽  
Yanqing Ding ◽  
...  
Keyword(s):  
Lake Taihu ◽  
Cyanobacterial Bloom ◽  
Short Term ◽  
Bloom Formation ◽  
Hydrodynamic Fluctuation

scholarly journals Effects of Cyanobacteria on Phosphorus Cycling and Other Aquatic Organisms in Simulated Eutrophic Ecosystems

Water ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2265
Author(s):  
Peng Gu ◽  
Qi Li ◽  
Hao Zhang ◽  
Xin Luo ◽  
Weizhen Zhang ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Lake Taihu ◽  
Cyanobacterial Bloom ◽  
Aquatic Organisms ◽  
Pilot Scale ◽  
Freshwater Ecosystems ◽  
Cyanobacterial Blooms ◽  
Eutrophic Lakes ◽  
P Concentration ◽  
Bloom Formation

Cyanobacterial blooms caused by eutrophication in Lake Taihu have led to ecological threats to freshwater ecosystems. A pilot scale experiment was implemented to investigate the relationship between cyanobacteria and other aquatic plants and animals in simulated eutrophic ecosystems under different phosphorus (P) regimes. The results of this study showed that cyanobacteria had two characteristics favorable for bloom formation in eutrophic ecosystems. One is the nutrient absorption. The presence of alkaline phosphatase was beneficial for algal cells in nutrition absorption under low P concentration. Cyanobacteria exhibited a stronger ability to absorb and store P compared to Vallisneria natans, which contributed to the fast growth of algal cells between 0.2 and 0.5 mg·L−1 of P (p < 0.05). However, P loads affected only the maximum biomass, but not the growth phases. The growth cycle of cyanobacteria remained unchanged and was not related to P concentration. P cycling indicated that 43.05–69.90% of the total P existed in the form of sediment, and P content of cyanobacteria showed the highest increase among the organisms. The other is the release of microcystin. Toxic microcystin-LR was released into the water, causing indirectly the growth inhibition of Carassius auratus and Bellamya quadrata and the reduction of microbial diversity. These findings are of importance in exploring the mechanism of cyanobacterial bloom formation and the nutrient management of eutrophic lakes.

Nutrient reduction magnifies the impact of extreme weather on cyanobacterial bloom formation in large shallow Lake Taihu (China)

2016 ◽  
Vol 103 ◽  
pp. 302-310 ◽  
Author(s):  
Zhen Yang ◽  
Min Zhang ◽  
Xiaoli Shi ◽  
Fanxiang Kong ◽  
Ronghua Ma ◽  
...  
Keyword(s):  
Shallow Lake ◽  
Lake Taihu ◽  
Cyanobacterial Bloom ◽  
Extreme Weather ◽  
Nutrient Reduction ◽  
Large Shallow Lake ◽  
Bloom Formation ◽  
The Impact

Short-Term Rainfall Impairs Cyanobacterial Bloom Formation in an Eutrophic Subtropical Urban Reservoir in Warm Season

2021 ◽  
Author(s):  
Anqi Luo ◽  
Huihuang Chen ◽  
Xiaofei Gao ◽  
Laurence Carvalho ◽  
Yuanyuan Xue ◽  
...  
Keyword(s):  
Cyanobacterial Bloom ◽  
Warm Season ◽  
Short Term ◽  
Bloom Formation

Contributions of external nutrient loading and internal cycling to cyanobacterial bloom dynamics in Lake Taihu, China: Implications for nutrient management

2021 ◽  
Vol 66 (4) ◽  
pp. 1492-1509
Author(s):  
Hai Xu ◽  
Mark J. McCarthy ◽  
Hans W. Paerl ◽  
Justin D. Brookes ◽  
Guangwei Zhu ◽  
...  
Keyword(s):  
Nutrient Loading ◽  
Nutrient Management ◽  
Lake Taihu ◽  
Cyanobacterial Bloom ◽  
External Nutrient ◽  
Internal Cycling

scholarly journals Harmful phytoplankton blooms and fish mortality in a eutrophicated reservoir of northeast Brazil

2008 ◽  
Vol 51 (4) ◽  
pp. 633-641 ◽  
Author(s):  
Naithirithi Tiruvenkatachary Chellappa ◽  
Sarah Laxhmi Chellappa ◽  
Sathyabama Chellappa
Keyword(s):  
Cyanobacterial Bloom ◽  
Hplc Method ◽  
Freshwater Ecosystems ◽  
Cyanobacterial Blooms ◽  
Fish Mortality ◽  
Cylindrospermopsis Raciborskii ◽  
Northeast Brazil ◽  
Cyanobacterial Toxin ◽  
Bloom Formation ◽  
Harmful Effects

The aim of this work was to study the eutrophication in the tropical freshwater ecosystems and the consequent cyanobacterial bloom formation and economical damage to fisheries and harmful effects to public health. Mass fish mortality due to toxin producing cyanobacterial blooms was registered during December 2003 in Marechal Dutra Reservoir, Acari/RN, Northeast Brazil. Phytoplankton and fish samplings were carried out on alternate days during the episode of fish mortality and monthly during January to June 2004. The cyanobacterial toxin was identified and quantified from the seston samples and liver of the dead fishes using the standard HPLC method. The results indicated that the toxic blooms of Cylindrospermopsis raciborskii and Microcystis aeruginosa were persistent for two weeks and represented 90% of the phytoplankton species assemblages. The lethally affected fishes were Oreochromis niloticus, Plagioscion squamosissimus, Cichla monoculus, Prochilodus brevis, Hoplias malabaricus and Leporinus friderici. The microcystin levels varied from 0.07 to 8.73µg L-1 the seston samples and from 0.01 to 2.59µg g-1in the liver samples of the fishes during the bloom period.

scholarly journals The role of microcystins in heavy cyanobacterial bloom formation

1998 ◽  
Vol 20 (4) ◽  
pp. 691-708 ◽  
Author(s):  
Bojan Sedmak ◽  
Gorazd Kosi
Keyword(s):  
Cyanobacterial Bloom ◽  
Bloom Formation

scholarly journals Numerical forecasting of short-term algae-induced black bloom in eutrophic shallow lake:A case study of Lake Taihu

2016 ◽  
Vol 28 (4) ◽  
pp. 701-709 ◽  
Author(s):  
LI Wei ◽  
◽  
QIN Boqiang ◽  
ZHANG Yunlin ◽  
ZHU Guangwei
Keyword(s):  
Lake Taihu ◽  
Short Term
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