Journal of Environmental Management,
Journal Year:
2025,
Volume and Issue:
375, P. 124362 - 124362
Published: Feb. 1, 2025
The
Caloosahatchee
Estuary
in
southwest
Florida,
USA,
is
regularly
subject
to
the
introduction
of
toxic
Microcystis
aeruginosa
blooms,
often
originating
from
eutrophic
Lake
Okeechobee
via
C-43
Canal.
focus
this
study
was
determine
responses
one
these
introduced
blooms
progressively
elevated
salinity
levels
as
bloom
water
mass
moved
through
estuary.
In
upper
estuary,
salinities
were
freshwater,
and
surface
large
colonies
M.
observed,
along
with
peak
microcystin
toxin
concentrations
up
107
μg
L-1,
all
particulate
fraction.
mid-estuary,
increased
2-6,
again
259
however,
significant
extracellular
also
observed
(i.e.,
17.8
L-1),
suggesting
a
level
osmotic
stress
on
aeruginosa.
lower
ranged
6
25
very
few
viable
but
0.5
L-1)
present
throughout
column.
It
noteworthy
that
average
total
column
+
extracellular)
remained
constant
movement
during
its
transit
revealing
negligible
rate
degradation
ten-day
transit.
results
provide
insights
into
changes
distribution
gradient,
which
has
implications
for
management
risks
ecosystem
human
health,
how
may
be
affected
by
releases
three
control
structures
Discharge
rates
play
major
roles
Canal-Caloosahatchee
ecosystem.
potential
discharge
regulation
are
discussed
perspectives
allochthonous
autochthonous
origin.
Frontiers in Marine Science,
Journal Year:
2020,
Volume and Issue:
7
Published: Aug. 17, 2020
Coastal
eutrophication
caused
by
anthropogenic
nutrient
inputs
is
one
of
the
greatest
threats
to
health
coastal
estuarine
and
marine
ecosystems
worldwide.
To
better
understand
manage
this
threat,
we
compared
six
contrasting
that
are
subjected
a
range
riverine
freshwater
(buoyancy)
nutrients
address
(i)
impacts
on
ecosystem
services;
(ii)
how
traits
minimize
or
amplify
these
impacts;
(iii)
synergies
among
pressures
(nutrient
enrichment,
over
fishing,
development,
climate-driven
in
particular);
(iv)
management
ecosystems.
Globally,
~
24%
N
released
watersheds
estimated
reach
Our
comparative
assessment
revealed
terms
spatial
extent
habitat
degradation,
Chesapeake
Bay
ranks
number
followed
rank
order
northern
Gulf
Mexico,
Baltic
Sea,
Great
Barrier
Reef,
East
China
Sea
Adriatic
Sea;
increases
loading
are,
will
continue
be,
exacerbated
with
other
including
development
sea
surface
temperature,
acidification
rainfall;
when
defined
quantitative
ranges
primary
production,
trophic
status
not
useful
for
relating
impacts.
While
managed
reductions
point
source
from
sewage
treatment
plants
increasingly
successful,
controlling
diffuse
sources
remains
challenging
problem.
Thus,
it
likely
severity
increase
absence
effectively
enforced,
ecosystem-based
both
nitrogen
phosphorus.
This
requires
sustained,
integrated
research
monitoring,
as
well
repeated
assessments
These
must
be
informed
guided
ongoing
collaborations
scientists,
politicians,
managers
public.
Journal of Great Lakes Research,
Journal Year:
2020,
Volume and Issue:
46(4), P. 686 - 702
Published: May 25, 2020
Large
lakes
of
the
world
are
habitats
for
diverse
species,
including
endemic
taxa,
and
valuable
resources
that
provide
humanity
with
many
ecosystem
services.
They
also
sentinels
global
local
change,
recent
studies
in
limnology
paleolimnology
have
demonstrated
disturbing
evidence
their
collective
degradation
terms
depletion
(water
food),
rapid
warming
loss
ice,
destruction
ecosystems,
accelerating
pollution.
particularly
exposed
to
anthropogenic
climatic
stressors.
The
Second
Warning
Humanity
provides
a
framework
assess
dangers
now
threatening
world's
large
lake
ecosystems
evaluate
pathways
sustainable
development
more
respectful
ongoing
provision
Here
we
review
current
emerging
threats
world,
iconic
examples
management
failures
successes,
from
which
identify
priorities
approaches
future
conservation
efforts.
underscores
extent
resource
degradation,
is
result
cumulative
perturbation
through
time
by
long-term
human
impacts
combined
other
Decades
resulted
major
challenges
restoration
legacy
ecological
economic
costs
generations.
will
require
intense
efforts
warmer,
increasingly
populated
achieve
sustainable,
high-quality
waters.
This
an
opportunity
highlight
value
observatory
network
monitor
report
on
environmental
changes
ecosystems.
Photochemical & Photobiological Sciences,
Journal Year:
2021,
Volume and Issue:
20(1), P. 1 - 67
Published: Jan. 1, 2021
Abstract
This
assessment
by
the
Environmental
Effects
Assessment
Panel
(EEAP)
of
United
Nations
Environment
Programme
(UNEP)
provides
latest
scientific
update
since
our
most
recent
comprehensive
(Photochemical
and
Photobiological
Sciences,
2019,
18,
595–828).
The
interactive
effects
between
stratospheric
ozone
layer,
solar
ultraviolet
(UV)
radiation,
climate
change
are
presented
within
framework
Montreal
Protocol
Sustainable
Development
Goals.
We
address
how
these
global
environmental
changes
affect
atmosphere
air
quality;
human
health;
terrestrial
aquatic
ecosystems;
biogeochemical
cycles;
materials
used
in
outdoor
construction,
energy
technologies,
fabrics.
In
many
cases,
there
is
a
growing
influence
from
seasonality
extreme
events
due
to
change.
Additionally,
we
assess
transmission
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2),
which
responsible
for
COVID-19
pandemic,
context
linkages
with
UV
radiation
Protocol.
Geoscience Frontiers,
Journal Year:
2022,
Volume and Issue:
13(5), P. 101427 - 101427
Published: July 2, 2022
Populations
and
metropolitan
centers
are
accumulated
in
coastal
areas
around
the
world.
In
view
of
fact
that
they
geographically
adjacent
to
coasts
intense
anthropogenic
activities,
increasing
global
offshore
pollution
has
been
an
important
worldwide
concern
over
past
several
decades
become
a
very
serious
problem
needs
be
addressed
urgently.
Due
pollution,
various
geological
disasters
occur
high
frequency,
including
intensified
erosion
salinization
soils,
frequent
collapses
landslides
seismic
activities.
Moreover,
shows
increasingly
impacts
on
topography
geomorphology
areas,
degradation,
retreating
coastlines
estuary
delta
erosion.
Offshore
sedimentation
processes
strongly
influenced
by
pH
changes
terrestrial
discharges,
sedimentary
dynamics
have
extremely
acute
complex
due
pollution.
The
seabed
hydrodynamic
environment
determine
fate
transport
pollutants
entering
regions.
Coastal
estuaries,
port
basins
lagoons
relatively
moderate
ocean
currents
winds
more
likely
accumulate
pollutants.
regions
undersea
canyons
can
used
as
conduits
for
transporting
from
continent
seabed.
It
is
particularly
noteworthy
spatial/temporal
distribution
species,
community
structures,
ecological
functions
undergone
unprecedented
recent
decades.
stable
succession
development
trend
marine
ecosystems
broken.
thus
identify
regulate
quantity,
composition
transportation
their
behavior
ecosystems.
particular,
crucial
actions
stabilizing
ecosystems,
species
biodiversity,
should
implemented
enhance
anti-interference
capabilities.
This
review
provides
overview
current
situation
well
major
trends
pollutant
transformation
sediments,
bioaccumulation
diffusion.
study
retrospectively
reviews
long-term
evolution
perspective
geology,
analyses
potential
risks
associated
with
released
research
influence
based
geology
undoubtedly
needed.