Diversity,
Journal Year:
2023,
Volume and Issue:
15(10), P. 1051 - 1051
Published: Sept. 29, 2023
Harmful
algae
blooms
(HABs)
can
have
significant
adverse
effects
on
coastal
ecosystems
and
aquaculture
resiliency.
We
collected
samples
from
March
to
August
at
eight
different
stations
in
Haizhou
Bay
(China),
a
region
with
high
frequency
of
HABs,
used
Illumina
Novaseq
high-throughput
sequencing
multivariate
statistical
analysis
characterize
the
bacterial
communities
their
relationships
environmental
factors.
identified
27
phyla,
49
classes,
158
orders,
294
families,
522
genera.
Gammaproteobacteria,
Alphaproteobacteria,
Bacteroidia,
Acidimicrobiia,
Bacilli,
Actinobacteria,
Cyanobacteria,
Clostridia,
Acidobacteria
were
most
abundant
Acidobacteria,
Bacteroidetes,
Firmicutes,
Chloroflexi,
Proteobacteria,
Cyanobacteria
keystone
phyla.
Based
Mantel
test
redundancy
analysis,
temperature
was
main
factor
affecting
structure
communities,
followed
by
silicate,
dissolved
organic
phosphorus
(DOP),
oxygen
(DO).
Among
genera
OTU
abundance,
Nautella
co-related
positively
DO
negatively
salinity;
Planktomarina
salinity
nitrate
nitrite.
Certain
families
(Flavobacteriaceae,
Rhodobacteraceae,
Clade_I
(SAR11
clade))
(Methylophaga,
Alteromonas,
Oleiphilus,
Marinobacter,
Bacillus,
Nautella,
Vibrio)
had
associations
phytoplankton
species
that
responsible
for
HABs.
This
research
provides
new
insights
into
characteristics
occur
areas
HABs
detailed
descriptions
spatial
temporal
changes
these
communities.
Water,
Journal Year:
2024,
Volume and Issue:
16(2), P. 326 - 326
Published: Jan. 18, 2024
The
Danjiangkou
Reservoir
supplies
drinking
water
to
most
residents
in
northern
China.
However,
signs
of
eutrophication
have
been
observed
the
inlet
tributaries
reservoir,
including
Shending
River
backwater.
This
research
used
data
from
Sentinel-2
Multispectral
instrument
and
findings
a
2021
aquatic
ecological
survey
analyze
spatial
temporal
characteristics
phytoplankton
distribution
backwater
region.
average
chlorophyll
(Chl-a)
concentrations
by
season,
ranked
largest
smallest,
are
as
follows:
summer
(63.96
μg/L)
>
autumn
(41.26
spring
(27.47
winter
(16.21
μg/L);
upstream
area
near-shore
tributary
bay
had
relatively
higher
Chl-a
concentration.
Bacillariophyceae
(Cyclotella
meneghiniana
Synedra
sp.)
Cryptophyceae
species
(Chroomonas
acuta)
were
dominant
spring,
whereas
Chlorophyceae
(Scenedesmus
sp.
Chlorella
vulgaris)
Cyanophyceae
(Dactylococcopsis
acicularis,
Microcystis
aeruginosa
Oscillatoria
tenuis)
summer.
seasonal
succession
community
consistent
with
those
Plankton
Ecology
Group
model.
cell
density
was
4.80
×
107
cells/L,
Shannon–Wiener
diversity
index
1.95,
indicating
that
moderately
eutrophic.
According
Pearson
correlation
analysis
Mantel
test,
main
factors
causing
differences
production
River’s
level
(WL),
temperature
(WT),
ammonia
nitrogen
(NH3-N)
total
(TN).
In
particular,
WL
significantly
positively
correlated
Bacillariophyceae,
Cyanophyceae,
WT
Chlorophyceae.
NH3-N
TN
Cyanophyceae.
Therefore,
intensive
removal
tailwater
sewage
treatment
plants
may
be
considered
feasible
measure
prevent
cyanobacterial
bloom
Reservoir.
Toxins,
Journal Year:
2024,
Volume and Issue:
16(5), P. 206 - 206
Published: April 26, 2024
Cyanobacterial
harmful
algal
blooms
(cyanoHABs)
occur
in
fresh
water
globally.
These
can
degrade
quality
and
produce
toxins,
resulting
ecological
economic
damages.
Thus,
short-term
management
methods
(i.e.,
algaecides)
are
necessary
to
rapidly
mitigate
the
negative
impacts
of
cyanoHABs.
In
this
study,
we
assess
efficacy
a
hydrogen
peroxide-based
algaecide
(PAK
