Frontiers in Ecology and Evolution,
Journal Year:
2023,
Volume and Issue:
11
Published: April 12, 2023
Although
there
is
growing
concern
about
ingestion
of
microplastics
by
marine
organisms,
little
research
has
been
conducted
on
herbivores.
This
the
first
study
to
document
microplastic
within
family
Sirenia.
Subsamples
were
collected
from
five
locations
in
gastrointestinal
tracts
(GI)
26
dead
manatees
(
Trichechus
manatus
latirostris
)
Tampa
Bay,
Florida.
During
gross
necropsies,
macroplastic
pieces
found
seven
individuals
(26.9%).
Careful
visual
examination
subsampled
portions
GI
contents
indicated
that
19
(73.1%)
contained
plastic
particles.
As
had
both
macro
and
pieces,
overall
frequency
occurrence
was
76.9%.
Due
large
volume
cellulose-rich
ingested
material,
it
not
feasible
analyze
entire
gut
contents,
nor
conduct
chemical
or
enzymatic
digestion;
therefore,
very
likely
many
detected.
Despite
these
technical
challenges,
clear
Bay
are
routinely
consuming
addition
larger
pieces.
Currently,
nothing
known
physiological
effects
sirenians,
however
environmental
plastics
could
be
concentrated
through
subsequent
production
microplastics-laden
feces.
IOP Conference Series Earth and Environmental Science,
Journal Year:
2022,
Volume and Issue:
1013(1), P. 012012 - 012012
Published: April 1, 2022
Abstract
Plastics
are
widely
used
in
daily
lives
but
uncontrollably
dumped
into
the
ocean
by
humans.
Plastic
pollution
is
harmful
to
marine
environment
and
organisms
as
it
can
break
down
microplastics
(MPs)
release
chemicals
water.
Microplastics
small,
fragmented
plastic
pieces
(<
5mm)
that
exist
every
part
of
ocean.
MPs
problematic
because
they
hard
recover
be
easily
consumed
organisms,
resulting
bioaccumulation
biomagnification
food
chain.
Malaysia
a
tropical
country
located
at
heart
Southeast
Asia
(SEA)
owns
diverse
ecosystems
organisms.
affected
due
rapid
development
intense
economic
activities.
In
this
paper,
we
discuss
crisis
its
contributing
factor.
We
review
possible
effect
on
Malaysia.
Knowledge
gaps
manage
also
addressed.
As
consistently
discovered
different
compartments
Malaysian
environment,
there
an
urgency
develop
better
waste
management
system
strong
cooperation
from
all
societal
levels
handle
country.
Environmental Pollution,
Journal Year:
2024,
Volume and Issue:
348, P. 123814 - 123814
Published: March 16, 2024
In
the
coastal
environment,
a
large
amount
of
microplastics
(MPs)
can
accumulate
in
sediments
seagrass
beds.
However,
potential
impact
these
pollutants
have
on
seagrasses
and
associated
organisms
is
currently
unknown.
this
study,
we
investigated
differences
MPs
abundance
composition
(i.e.,
shape,
colour
polymer
type)
marine
collected
at
different
depths
(-5
m,
-15
-20
m)
two
sites
characterized
by
presence
Posidonia
oceanica
meadows
one
unvegetated
site.
vegetated
sites,
sediment
samples
were
respectively
above
below
upper
lower
limits
meadow
m
m),
out
P.
meadow,
central
portion
(-15
m).
By
focusing
part
if
structural
features
(i.e.
shoots
density
leaf
surface)
affect
retained
within
underlying
these,
turn,
benthic
communities.
Results
showed
that
number
was
higher
than
found
site,
showing
also
composition.
particular,
observed
particles
more
abundant
(at
-
15
compared
to
other
depths,
sediment,
with
dominance
transparent
fragments
polypropylene
(PP).
We
entrapment
accentuated
density,
while
surface
did
not
appear
any
effect.
Both
richness
macrofauna
rhizomes
be
negatively
influenced
sediment.
Overall,
study
increases
knowledge
risks
accumulation
important
habitats
such
as
meadows.
Frontiers in Ecology and Evolution,
Journal Year:
2023,
Volume and Issue:
11
Published: April 12, 2023
Although
there
is
growing
concern
about
ingestion
of
microplastics
by
marine
organisms,
little
research
has
been
conducted
on
herbivores.
This
the
first
study
to
document
microplastic
within
family
Sirenia.
Subsamples
were
collected
from
five
locations
in
gastrointestinal
tracts
(GI)
26
dead
manatees
(
Trichechus
manatus
latirostris
)
Tampa
Bay,
Florida.
During
gross
necropsies,
macroplastic
pieces
found
seven
individuals
(26.9%).
Careful
visual
examination
subsampled
portions
GI
contents
indicated
that
19
(73.1%)
contained
plastic
particles.
As
had
both
macro
and
pieces,
overall
frequency
occurrence
was
76.9%.
Due
large
volume
cellulose-rich
ingested
material,
it
not
feasible
analyze
entire
gut
contents,
nor
conduct
chemical
or
enzymatic
digestion;
therefore,
very
likely
many
detected.
Despite
these
technical
challenges,
clear
Bay
are
routinely
consuming
addition
larger
pieces.
Currently,
nothing
known
physiological
effects
sirenians,
however
environmental
plastics
could
be
concentrated
through
subsequent
production
microplastics-laden
feces.
