This
study
evaluates
for
the
first
time
plastic
litter
occurrence
in
Posidonia
spheroids
of
four
Mediterranean
sandy
beaches
at
different
anthropogenic
impact.
A
total
80
was
analyzed
and
202
items
were
found.
Spheroids
entangled
a
high
number
(132
items/kg)
with
significant
differences
between
beaches.
Our
results
highlight
importance
to
implement
beach
cleaning
plan
removal
all
order
prevent
them
from
flaking
releasing
marine
trapped
inside
again
environment.
should
be
manually
removed
protect
banquettes.
The
involved
spheroids,
independently
their
size.
adds
data
implementation
monitoring
program
contributes
development
specific
management
measures
as
well
action
plans.
The Science of The Total Environment,
Год журнала:
2023,
Номер
880, С. 163293 - 163293
Опубликована: Апрель 6, 2023
The
presence
of
plastic
litter
in
coastal
environments
like
beach-dune
systems
has
been
well
documented,
and
recent
studies
have
shown
that
this
pollutant
can
influence
sand
properties
as
dune
vegetation.
However,
the
effects
plastics
on
rhizosphere
bacterial
communities
plants
largely
neglected.
This
is
an
ecologically
relevant
issue
since
these
may
play
important
role
improving
plant
growth
resilience
systems.
Here,
we
explored
impact
made
either
non-biodegradable
polymers
(NBP)
or
biodegradable/compostable
(BP)
structure
composition
associated
with
two
widespread
species
along
European
dunes,
Thinopyrum
junceum
Sporobolus
pumilus,
by
using
a
one-year
field
experiment
combined
metabarcoding
techniques.
Both
did
not
affect
neither
survival
nor
biomass
T.
plants,
but
they
significantly
increased
alpha-diversity
communities.
They
also
changed
increasing
abundance
phyla
Acidobacteria,
Chlamydiae,
Nitrospirae,
family
Pirellulaceae,
reducing
Rhizobiaceae.
NBP
reduced
drastically
S.
pumilus
while
BP
its
root
compared
to
controls.
phylum
Patescibacteria
Our
findings
provide
first
evidence
change
highlight
importance
investigating
how
changes
dunes
climate
change.
Sustainability,
Год журнала:
2023,
Номер
15(22), С. 15740 - 15740
Опубликована: Ноя. 8, 2023
This
study
represents
the
first
assessment
of
plastic
waste
within
Posidonia
spheroids
on
four
sandy,
Mediterranean
beaches,
each
characterized
by
varying
levels
anthropogenic
influence.
Fifty-five
(68.7%)
spheroids,
out
eighty
examined,
included
litter.
A
total
202
items
were
isolated.
Plastic
abundance
was
2.5
items/spheroid
corresponding
to
132
per
kilogram.
The
length
ranged
from
0.1
50
mm.
Fibers,
tangled
fibers
and
fragments
most
common
shapes.
exhibited
a
substantial
capacity
for
trapping
waste,
with
notable
differences
among
beaches.
Our
results
underscore
significance
implementing
beach
clean-up
plan
aimed
at
removing
all
prevent
them
disintegrating
releasing
trapped
into
environment.
Manual
removal
is
recommended
safeguard
this
process
should
target
regardless
their
size.
provides
valuable
insights
that
can
inform
marine
litter
monitoring
programs,
contribute
development
tailored
management
measures,
support
implementation
specific
action
plans
mitigate
microplastic
pollution.
The Science of The Total Environment,
Год журнала:
2023,
Номер
912, С. 169280 - 169280
Опубликована: Дек. 19, 2023
The
present
study
provides
indications
and
underlying
drivers
of
wave-induced
transport
retention
potential
microplastic
particles
(MP)
in
marine
vegetation
canopies
having
different
densities.
anthropogenic
occurrence
MP
coastal
waters
is
well
documented
the
recent
literature.
It
acknowledged
that
can
serve
as
a
sink
for
due
to
its
energy
dissipating
features,
which
mimic
novel
ecosystem
service.
While
behavior
has
previously
been
investigated
some
extent
stationary
flow
conditions,
fundamental
investigations
unsteady
surf
zone
conditions
under
irregular
waves
are
still
lacking.
Herein,
we
demonstrate
by
means
hydraulic
model
tests
vegetation's
increases
with
shoot
density,
settling
velocity
decreasing
wave
energy.
found
migrating
traction
(predominantly
contact
bed)
trapped
wake
regions
around
canopy,
whereas
suspended
able
pass
vegetated
areas
more
easily.
Very
dense
also
promote
passage
diameters
larger
than
plant
spacing,
then
show
characteristics
solid
sill
avoid
particle
penetration.
migration
ability
through
canopy
quantified,
key
described
an
empirical
expression
based
on
velocity,
length
density.
findings
this
may
contribute
improved
prediction
assessment
accumulation
hotspots
and,
thus,
help
tracing
sinks.
Such
knowledge
be
considered
prerequisite
develope
methods
or
new
technologies
recover
plastic
pollutants
rehabilitate
valuable
environments.
This
study
evaluates
for
the
first
time
plastic
litter
occurrence
in
Posidonia
spheroids
of
four
Mediterranean
sandy
beaches
at
different
anthropogenic
impact.
A
total
80
was
analyzed
and
202
items
were
found.
Spheroids
entangled
a
high
number
(132
items/kg)
with
significant
differences
between
beaches.
Our
results
highlight
importance
to
implement
beach
cleaning
plan
removal
all
order
prevent
them
from
flaking
releasing
marine
trapped
inside
again
environment.
should
be
manually
removed
protect
banquettes.
The
involved
spheroids,
independently
their
size.
adds
data
implementation
monitoring
program
contributes
development
specific
management
measures
as
well
action
plans.
