PLoS ONE,
Год журнала:
2024,
Номер
19(2), С. e0298664 - e0298664
Опубликована: Фев. 23, 2024
Hydrological
and
water
quality
datasets
usually
encompass
a
large
number
of
characteristic
variables,
but
not
all
these
significantly
influence
analytical
outcomes.
Therefore,
by
wisely
selecting
feature
variables
with
rich
information
content
removing
redundant
features,
it
only
can
the
analysis
efficiency
be
improved,
model
complexity
also
simplified.
This
paper
considers
introducing
granular-ball
rough
set
algorithm
for
variable
selection
combining
k-nearest
neighbor
method
back
propagation
network
to
analyze
hydrological
data,
thus
promoting
overall
fused
inspection.
The
results
data
show
that
proposed
produces
better
compared
using
standalone
regressor.
Journal of Environmental Engineering,
Год журнала:
2024,
Номер
150(4)
Опубликована: Фев. 9, 2024
Phytoplankton
plays
an
essential
role
in
the
biogeochemical
cycle
because
it
is
at
top
of
food
chain
and
a
source
oxygen.
Eutrophication
causes
coastal
areas
to
deteriorate
as
industrialization
accelerates,
leading
harmful
algal
blooms
(HABs),
severely
affecting
human
ecological
health.
The
frequency
extent
HAB
events
potentially
may
increase
due
climate
change.
outbreaks
have
led
substantial
losses
for
major
economies
globally,
therefore
emerged
critical
research
focus
environmental
sciences.
However,
lack
overview
diverse
factors
influencing
HABs
complicates
cause
identification
effective
countermeasure
development
occurrence,
thereby
impeding
formulation
targeted
strategies
prediction
mitigation.
Therefore,
this
review
summarizes
influential
areas,
including
water
quality
(nutrients,
salinity,
stratification,
biological
factors)
climatological
(temperature,
pH
pCO2,
irradiance
light).
Recent
work
with
several
algae
species
suggested
that
warmer
temperatures
combined
nutrient
variation,
stronger
ocean
acidification
growth
some
toxic
dinoflagellate
species.
Although
effects
vary
different
locations,
intensification
anthropogenic
activities
change
likely
will
frequency,
outbreak
scale,
severity
most
HABs.
Because
predicting
crucial
understanding
synergy
their
minimizing
decision
makers
stakeholders,
we
reviewed
models
HABs,
process-based
models,
traditional
statistical-empirical
data-driven
machine
learning
models.
Predicting
becomes
more
challenging
spatial
distribution
influenced
by
future
patterns.
This
paper
presents
comprehensive
various
impacting
serving
valuable
resource
researchers
design
mitigation
strategies.
Journal of Marine Science and Engineering,
Год журнала:
2025,
Номер
13(3), С. 428 - 428
Опубликована: Фев. 25, 2025
Estuaries
act
as
significant
pathways
for
plastic
waste
entry
into
the
oceans,
with
microplastics
(MPs)
being
intricately
influenced
by
river
and
coastal
hydrodynamics.
MPs
become
entrapped
within
estuaries
during
transport,
particularly
at
river–sea
interface,
which
impacted
tidal
fluctuations.
However,
few
studies
have
examined
role
of
impacts
variations
on
microplastic
abundance
export
flux
interface
across
contrasting
hydrological
regimes
(dry
vs.
wet
seasons).
In
this
study,
we
conducted
observations
to
assess
abundance,
composition,
in
Suixi
Estuary
Zhanjiang
Bay,
China
The
results
indicated
an
overall
mean
91.1
±
75.0
items/L,
was
linked
variations,
decreasing
high
tides
increasing
low
tides.
Transparent
color,
fibrous
shape,
a
size
range
100–330
μm
were
most
prevalent
characteristics
water
samples.
diversity
higher
season
compared
dry
season.
addition,
influx
about
1.61
×
109
items/year
from
sea
both
seasons.
Additionally,
regimes,
forces,
human
activities
identified
influence
flux.
This
quantitative
analysis
establishes
mechanistic
framework
understanding
estuarine
providing
critical
baseline
data
developing
targeted
pollution
management
strategies
ecosystems.
Frontiers in Marine Science,
Год журнала:
2023,
Номер
10
Опубликована: Апрель 11, 2023
Although
great
efforts
have
been
made
to
decrease
nutrient
(notably
nitrogen
and
phosphorus)
loads
lighten
related
environmental
damages,
coastal
eutrophication
remains
a
persistent
crisis.
To
estimate
whether
the
rapid
development
of
local
economy
has
accelerated
in
Zhanjiang
Bay,
newly
developing
industry
South
China,
combination
seasonal
nutrients
other
physicochemical
parameters
from
twenty
cruises
during
2017-2021
historical
data
(past
30
years)
was
analyzed
this
study.
The
results
showed
that
upper
bay
is
significantly
higher
than
lower
(more
8
times),
which
mainly
terrestrial
input
weak
hydrological
conditions
bay.
Also,
more
severe
rainy
seasons
dry
(nearly
2
times)
because
abundant
phosphorus
were
brought
into
by
discharge
river
water.
From
long-term
perspective,
dissolved
inorganic
concentrations
effectively
controlled
while
phosphate
concentration
increased
sharply
past
years.
Correspondingly,
Bay
over
years,
index
recent
5
years
(2017-2021)
nearly
10
times
1990s,
suggesting
increase
increasing
industrial
factories
around
rather
culprit
causing
aggravation
eutrophication.
Our
study
essential
implement
land-ocean
integrated
control
strategy
improve
water
quality
mitigate
Frontiers in Marine Science,
Год журнала:
2024,
Номер
11
Опубликована: Июнь 3, 2024
Coastal
eutrophication
is
a
major
issue
of
marine
pollution.
The
main
factors
controlling
must
be
identified
to
ensure
effective
environmental
management
according
the
respective
local
conditions.
Zhanjiang
Bay
(ZJB),
located
northwest
South
China
Sea,
semi-closed
bay
influenced
by
complex
water
flows
and
development
surrounding
cities.
In
this
study,
we
investigated
nutrient
concentrations
compositions
in
ZJB
seawater
over
past
20
years
influencing
based
on
several
field
investigations
from
2006
2022
historical
data.
High
dissolved
inorganic
phosphorus
(DIP)
nitrogen
(DIN)
were
contributors
severe
long-term
ZJB;
however,
light
was
observed
outer
bay,
primarily
caused
chemical
oxygen
demand
(COD)
DIP.
primary
sources
COD
nutrients
riverine
freshwater,
sewage
outfalls,
mariculture
domestic
effluents
carried
rivers.
Tidal
effects
diluted
with
thereby
playing
key
role
redistribution.
DIN:
DIP
ratio
showed
restriction
excess
phosphorus,
owing
activities.
Marine
undertakings
can
exert
various
impacts
quality.
Eliminating
illegal
aquaculture
launching
tailwater
treatment
improve
quality,
whereas
practices
such
as
channel
dredging
may
worsen
it.
This
study
demonstrates
intricate
dynamics
ecosystem
offers
valuable
insights
for
conservation
efforts.
International Journal of Environmental Research and Public Health,
Год журнала:
2022,
Номер
19(8), С. 4886 - 4886
Опубликована: Апрель 17, 2022
Plastic
debris
contamination
in
marine
environments
is
a
global
problem
that
poses
considerable
threat
to
the
sustainability
and
health
of
coastal
ecosystems.
Marine
beaches,
as
key
zones
where
terrestrial
plastic
reach
waters,
are
faced
with
increasing
pressures
human
activities.
In
this
study,
we
explored
distribution,
composition,
inventory
over
seasonal
tidal
at
Yugang
Park
Beach
(YPB)
Zhanjiang
Bay,
South
China
Sea,
provide
baseline
for
on
beach.
The
results
showed
mean
abundance
summer
(6.00
±
2.10
items/m2)
was
significantly
greater
than
winter
(3.75
2.12
items/m2).
addition,
composition
ranged
size
mainly
from
1
5
mm
0.5
2.5
cm
summer,
respectively.
terms
white
most
common
(81.1%),
foam
abundant
(64.4%).
Moreover,
there
significant
relationship
between
sand
grain
fraction
(p
<
0.05),
implying
abundances
microplastic
were
more
easily
impacted
by
(>2
mm).
total
inventory,
about
1.18
×
105
2.95
items
YPB
variation
activities
responsible
accumulation.
This
study
provided
method
quantify
beach
could
be
helpful
consider
regional
variations
critical
source
areas
effective
clean-up.
