Marine Pollution Bulletin,
Journal Year:
2023,
Volume and Issue:
194, P. 115343 - 115343
Published: July 31, 2023
We
analyzed
plastic
debris
ingested
by
loggerheads
from
bycatch
between
2007
and
2021
in
the
Southwest
Indian
Ocean
(SWIO).
also
accumulated
on
beaches
of
east
coast
Madagascar
as
a
proxy
for
ocean
plastics
to
compare
characteristics
beached
turtles.
conducted
"brand
audit"
determine
their
country
origin.
An
oceanic
circulation
model
was
used
identify
most
likely
sources
SWIO.
In
total,
202
266
had
plastics.
Plastics
categorized
"hard"
"white"
were
equally
dominant
beaches,
suggesting
no
diet
selectivity.
Both
brand
audit
modeling
demonstrated
that
Southeast
Asia
is
main
source
pollution
region.
This
study
demonstrates
can
be
bioindicators
Journal of Marine Science and Engineering,
Journal Year:
2024,
Volume and Issue:
12(2), P. 319 - 319
Published: Feb. 13, 2024
The
persistent
increase
in
marine
plastic
litter
has
become
a
major
global
concern,
with
one
of
the
highest
concentrations
world’s
oceans
found
Wider
Caribbean
Region
(WCR).
In
this
study,
we
use
tracking
simulations
to
investigate
where
accumulates,
i.e.,
hotspots,
WCR
and
how
accumulation
varies
on
seasonal
timescales.
We
show
that
most
waste
converges
coastlines
shortly
after
being
released
into
because
strong
surface
current
predominant
easterly
winds.
Major
accumulations
take
place
along
(i)
western
coastline
WCR,
especially
north–south-oriented
coasts
Costa
Rica/Nicaragua,
Guatemala/Belize/Mexico,
Texas,
(ii)
Haiti–Dominican
Republic
Venezuela.
Relatively
low
is
Florida,
Yucatán
peninsula,
leeward
windward
islands.
Accumulation
modulated
primarily
by
ocean
currents
exhibits
significant
variabilities
due
changes
wind
patterns.
observed
Venezuela
proximity
large,
mismanaged
sources.
Finally,
discuss
uncertainty
associated
choices
made
defining
different
criteria
for
beaching
models.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
920, P. 170987 - 170987
Published: Feb. 15, 2024
The
mounting
issue
of
plastic
waste
in
the
aquatic
ecosystem
is
a
growing
source
concern.
Most
originates
on
land
and
significant
proportion
this
eventually
finds
its
way
into
marine
environment,
which
widely
regarded
as
major
repository
for
debris.
Currently,
there
exists
substantial
gap
our
understanding
how
much
plastic,
main
polymer
types,
distribution
environment.
This
study
aimed
to
provide
information
mass
concentrations
range
plastics
surface
sediments
semi-enclosed
Moreton
Bay,
just
offshore
large
city
Brisbane,
Southeast
Queensland,
Australia.
Surface
sediment
samples
were
quantitatively
analysed
suite
7
common
types
(i.e.,
polystyrene
(PS),
polycarbonate
(PC),
poly-(methyl
methacrylate)
(PMMA),
polypropylene
(PP),
polyethylene
terephthalate
(PET),
(PE)
polyvinyl
chloride
(PVC))
using
pressurized
liquid
extraction
(PLE)
followed
by
double-shot
microfurnace
pyrolysis
coupled
gas
chromatography
spectrometry
(Pyr-GC/MS).
advantage
approach
that
it
can
measure
below
limit
visual
detection.
revealed
Σ
Oceans,
Journal Year:
2024,
Volume and Issue:
5(1), P. 48 - 70
Published: Feb. 1, 2024
Baleen
whales
are
ecosystem
sentinels
of
microplastic
pollution.
Research
indicates
that
they
likely
ingest
millions
anthropogenic
microparticles
per
day
when
feeding.
Their
immense
prey
consumption
and
filter-feeding
behavior
put
them
at
risk.
However,
the
role
baleen,
oral
filtering
structure
mysticete
whales,
in
this
process
has
not
been
adequately
addressed.
Using
actual
baleen
tissue
from
four
whale
species
(fin,
humpback,
minke,
North
Atlantic
right)
flow
tank
experiments,
we
tested
capture
rate
plastics
varying
size,
shape,
polymer
type,
as
well
chemical
residues
leached
by
degraded
plastics,
all
which
accumulated
filter.
Expanded
polystyrene
foam
was
most
readily
captured
type
plastic,
followed
fragments,
fibers,
nurdles,
spherical
microbeads.
Nurdle
microbead
pellets
were
right
fragments
humpback
baleen.
Although
differences
between
types
statistically
significant,
buoyant
polymers
often
trapped
Plastics
sections
regions
a
full
rack,
but
more
dorsal
posterior
regions.
Baleen–plastic
interactions
underlie
various
risks
to
including
filter
clogging
damage,
may
impede
We
posit
pose
higher
risk
some
due
combination
factors,
porosity,
diet,
habitat
geographic
distribution,
foraging
ecology
behavior.
Certain
specific
marine
greatest
concern
plastic
abundance.
It
is
feasible
remove
sea;
what
there
will
continue
break
into
ever-smaller
pieces.
suggest
priorities
be
accorded
lessening
humans’
dependence
on
restricting
entry
points
ocean,
developing
biodegradable
alternatives.
