Sustainability,
Journal Year:
2025,
Volume and Issue:
17(5), P. 2182 - 2182
Published: March 3, 2025
Eutrophication
and
algal
blooms
have
frequently
occurred
in
Chaohu
Lake.
Water
parameters
interact
with
eutrophication
blooms.
However,
there
are
few
studies
on
the
spatial–temporal
characteristics
of
water
Lake
Basin.
To
assess
quality
its
seven
surrounding
rivers,
132
samples
from
33
sites
were
collected
seasonally
September
2019
to
July
2020,
14
physicochemical
detected.
Our
results
showed
that
urban
rivers
had
highest
nutrients,
chemical
oxygen
demand
(CODMn,
6.30
±
0.80
mg/L),
five-day
biological
(BOD5,
4.51
0.42
chlorophyll
a
concentration
(Chl
a,
54.88
39.81
μg/L);
forested
higher
transparency
(137.83
18.52
cm),
lowest
CODMn
(4.02
0.20
BOD5
(1.42
0.14
Chl
(7.18
1.41
agricultural
mixed
intermediate.
Generally,
was
“good”
“light-eutrophic”
according
index
trophic
level
index.
The
order
good
worst
season
spring
>
autumn
summer
winter.
These
implied
still
main
source
eutrophic
nutrients
Lake,
control
pollutants
is
core
management
Journal of Ecology,
Journal Year:
2022,
Volume and Issue:
110(6), P. 1442 - 1454
Published: Feb. 15, 2022
Abstract
A
sound
understanding
of
the
community
changes
over
time
and
its
driving
forces
is
at
centre
biodiversity
conservation
ecology
research.
In
this
study,
we
examined:
(i)
relative
roles
turnover
nestedness
components
to
trait‐
taxonomy‐based
temporal
beta
diversity
riverine
diatoms;
(ii)
whether
trait‐based
provides
complementary
information
diversity;
(iii)
hydrology
(e.g.
discharge,
antecedent
precipitation
index),
metal
ions
Mg
2+
,
Si
)
nutrients
nitrogen,
orthophosphate)
both
facets
their
(i.e.
total
diversity,
nestedness);
(iv)
inclusion
environment
regimes
increase
explained
variations.
338
daily
samples
diatom
communities
were
collected.
We
employed
Mantel
tests
evaluate
complementarities
between
diversity.
Using
distance‐based
redundancy
analysis
(db‐RDA)
variation
partitioning,
investigated
hydrology,
each
facet
components.
Correlations
weak,
which
showed
ecological
information.
Taxonomy‐based
had
a
high
contribution
by
component,
whereas
was
largely
driven
component.
Results
partitioning
demonstrated
that
pure
shared
fractions
nutrient
differed
among
Furthermore,
addition
could
dramatically
Synthesis
.
Our
results
highlighted
importance
two
as
well
decomposition
for
exploring
patterns
diatoms
in
relation
abiotic
factors,
particularly
regimes.
Although
taxonomic
divergence
detected,
level
trait
convergence
indicated
species
with
similar
biological
traits
occurred
during
our
study
period.
first
time,
new
perspective
into
communities,
has
not
yet
been
documented
previous
freshwater
studies.
Environment International,
Journal Year:
2024,
Volume and Issue:
185, P. 108557 - 108557
Published: March 1, 2024
Globally
intensified
lake
eutrophication,
attributed
to
excessive
anthropogenic
nitrogen
loading,
emerges
as
a
significant
driver
of
submerged
vegetation
degradation.
Consequently,
the
impact
on
decline
macrophytes
has
received
increasing
attention.
However,
functional
trait-based
approach
exploring
response
loading
and
its
environmental
feedback
mechanism
was
unclear.
Our
study
utilized
two
different
growth
forms
(canopy-forming
Myriophyllum
spicatum,
rosette-forming
Vallisneria
natans)
established
"submerged
macrophytes-water–sediment"
microcosms.
We
assessed
influence
across
four
targeted
total
concentrations
(original
control,
2,
5,
10
mg/L),
plant
traits,
water
parameters,
sediment
properties,
enzyme
activities,
microbial
characteristics.
findings
revealed
that
high
(10
mg/L)
adversely
impacted
relative
rate
fresh
biomass
chlorophyll
content
in
canopy-forming
M.
while
a/b
free
amino
acid
increased.
On
contrary,
photosynthetic
traits
resource-conservative
V.
natans
were
not
affected
by
loading.
Functional
(growth,
photosynthetic,
stoichiometric)
spicatum
but
exhibited
correlations
with
variables.
Nitrogen
significantly
increased
concentration
components
overlying
pore
water.
The
presence
reduced
ammonia
both
water,
decreased
organic
carbon
inhibited
extracellular
planting
mitigated
their
negative
effects.
Furthermore,
rhizosphere
bacterial
interactions
less
compact
compared
bare
eukaryotic
communities
complexity
connectivity.
Path
modeling
indicated
direct
effects
amplified
indirect
also
attenuating
enzymes.
restoration
can
mitigate
eutrophication
resulting
from
through
species-specific
changes
or
mechanisms
water–sediment
system.
The Science of The Total Environment,
Journal Year:
2019,
Volume and Issue:
698, P. 134337 - 134337
Published: Sept. 6, 2019
Green
tides,
the
phenomenon
whereby
large
volume
of
marine
environment
is
taken
over
by
sea
lettuce
Ulva
spp,
are
a
seasonal
occurrence
thought
to
be
caused
mainly
anthropogenic
eutrophication.
The
aggravation
green
tide
since
1970s
could
however
due
amplification
fast-growing
strains
within
these
areas.
In
this
study,
we
compared
growth
and
metabolite
content
28
against
100
non-green
strains,
under
conditions
close
those
encountered
in
tides
aim
was
determine
whether
presence
specific
characteristics
intrinsic
itself
major
factor
for
their
reoccurrence.
We
confirmed
that
have
characteristics,
with
faster
tissue
expansion,
higher
protein
pigments,
lower
starch
ones,
thus
highlighting
genetic
component
strains.
Dry
biomass
accumulation,
however,
not
different
between
two
types
Hence,
hypothesise
selective
pressure
areas
leads
genotypes
best
adapted
environment.
Such
selection
would
indicate
likely
become
more
prevalent
magnitude
coming
years.
The Science of The Total Environment,
Journal Year:
2022,
Volume and Issue:
823, P. 153431 - 153431
Published: Feb. 7, 2022
While
it
is
recognized
that
biodiversity
currently
declines
at
a
global
scale,
we
still
have
an
incomplete
understanding
of
local
trends
under
change.
To
address
this
deficiency,
examined
the
recent
decadal
in
water
quality
and
(taxonomic
functional)
key
river
organisms
(diatoms,
macroinvertebrates
fish)
France.
We
implemented
regression,
RLQ
fourth-corner
analyses.
Our
results
showed
nutrient
loads
tended
to
decrease,
diatom
richness
decline
macoinvertebrate
increase.
The
recovery
sensitive
taxa
all
three
groups
suggested
successful
outcome
management
France
over
past
decades.
study
further
revealed
consistent
rearrangements
within
communities,
with
decrease
ratio
planktonic
benthic
diatoms,
corresponding
functional
changes
macroinvertebrate
fish
trait
composition,
indicative
trophic
cascade
response
environmental
conditions.
