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Review
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Recruitment
of bloom-forming cyanobacteria and its driving factors
Xiao Tan1,
2, Fan-xiang Kong1*,
Huan-sheng Cao3, Yang Yu1 and Min
Zhang1
1State Key Laboratory of Lake Science and Environment, Nanjing
Institute of Geography and Limnology, Chinese Academy of
Sciences, Nanjing 210008, China.
2Graduate
School of Chinese Academy of Sciences, Beijing 100039, China
3Department
of Biological Sciences, Fordham University, New York 10458,
U.S.A.
*Corresponding author. E-mail:
kongfanxiang@gmail.com,
biotan@163.com. Tel:
86-25-86882191. Fax: 86-25-57714759.
Accepted 21 November, 2008 |
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Abstract |
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Based on most of the literature, this paper reviewed the
progress made in following aspects: cognition to
cyanobacteria recruitment, various traps for studying
cyanobacteria recruitment in lakes, recruitment patterns of
some species of cyanobacteria, and the driving factors for
recruitment. Additionally, perspective studies of
cyanobacteria recruitment in lakes were pointed out. In
light of the existing knowledge,
cyanobacteria
recruitment could be regarded as a
process
that
benthic
overwintering cyanobacteria
migrated
to the pelagic phase after germination and growth renewal
under suitable conditions. This process was divided into
three consecutive phases: germination, a potential growth
phase, and migration to the pelagic phase. Previous studies
mostly focused on the migration from sediments to water. To
date, several kinds of traps had been designed to
investigate cyanobacteria recruitment. Some studies showed
that amounts of cyanobacteria recruitment were higher in
shallow regions than deep regions of lakes, and the
recruitment rates mostly peaked in a given time of year
before blooms onset. Temperature, resuspension and
bioturbation had been recognized to be the most important
factors for driving cyanobacteria recruitment. Other factors
(such as light, nutrients, anoxia, etc.) also played a role.
Key words:
Cyanobacteria, recruitment, driving factors, blooms. |
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