Animals,
Год журнала:
2022,
Номер
13(1), С. 95 - 95
Опубликована: Дек. 27, 2022
Once
they
reach
the
aquatic
environment,
microplastics
(MPs)
are
accidentally
ingested
by
biota,
thus
entering
food
chain
with
possible
negative
effects.
The
present
study
investigated,
for
first
time,
MP
presence
in
cuttlefish
(Sepia
officinalis)
eggs
and
their
association
embryonic
development.
Cuttlefish
were
sampled
from
four
different
sites
along
Marche
region
(Senigallia,
Ancona,
Numana,
San
Benedetto
del
Tronto).
Embryo
hatchling
biometric
parameters
evaluated
internal
structural
integrity
was
examined
through
histological
analysis.
MPs
detected
characterized
embryos
yolk
samples.
identified
all
(size
<
5
µm),
however,
has
not
been
associated
an
impairment
of
either
embryo
or
structures.
Noteworthy,
highest
number
(in
both
samples)
found
Numana
(37%
total
amount),
where
lowest
size
observed.
On
other
hand,
mantle
length
(9%)
Ancona.
Overall,
only
fragments
sphere
types
(74
26%,
respectively)
observed,
most
frequent
polymers
Polyvinyl
chloride
(52%),
Polypropylene,
Cellulose
acetate
(15%
both).
Further
studies
needed
to
assess
effects
on
quality
assimilation.
Toxics,
Год журнала:
2024,
Номер
12(6), С. 439 - 439
Опубликована: Июнь 18, 2024
This
study
investigates
the
occurrence
and
characteristics
of
macroplastic
polymer
microparticles
in
Urias
coastal
lagoon’s
beach
sediments,
northwest
Mexico.
Coastal
lagoons,
productive
vulnerable
ecosystems,
are
impacted
significantly
by
anthropogenic
activities,
leadings
to
their
pollution
various
contaminants,
including
plastics.
Our
research
involved
sampling
sediments
from
four
sites
within
lagoon
that
were
influenced
different
human
activities
such
as
fishing,
aquaculture,
thermoelectric
power
plant
operations,
industrial
domestic
wastewater
discharge.
methodology
included
collecting
macroplastics
sediment
samples,
followed
laboratory
analyses
identify
plastic
debris’
size,
shape,
color,
chemical
composition.
The
results
indicated
a
notable
presence
items
(144),
predominantly
bags,
styrofoam,
caps
made
polyethylene
(PE),
polypropylene
(PP),
terephthalate
(PET).
mainly
fibers,
with
cotton
polyester
most
common
polymers,
suggesting
significant
contribution
clothing-related
waste.
dominant
colors
blue
transparent.
High
densities
observed
areas
slower
water
exchange.
findings
highlight
urgent
need
for
better
waste
management
practices
mitigate
preserving
ecological
economic
functions.
Toxics,
Год журнала:
2022,
Номер
11(1), С. 38 - 38
Опубликована: Дек. 30, 2022
This
study
analyzed
microplastics
in
the
gastrointestinal
tract
of
Siberian
dace
(Leuciscus
leuciscus
subsp.
baicalensis
(Dybowski,
1874))
remote
Yenisei
tributary
Nizhnyaya
(Lower)
Tunguska
River
(Siberia,
Russia).
µRaman
analysis
showed
that
60%
fish
from
two
different
sites
had
ingested
plastic
microparticles
(on
average,
1.55
±
1.95
items
per
individual).
The
most
common
type
microplastic
were
fibers,
and
abundant
size
category
was
300
to
1000
µm.
In
studied
population,
no
significant
differences
MP
content
between
or
males
females
found
(p
>
0.05).
tendency
for
higher
ingestion
by
at
earlier
ages
(2+
3+)
compared
later
(4+
5+)
observed,
which
may
be
connected
features
biology
ecology.
Animals,
Год журнала:
2022,
Номер
13(1), С. 95 - 95
Опубликована: Дек. 27, 2022
Once
they
reach
the
aquatic
environment,
microplastics
(MPs)
are
accidentally
ingested
by
biota,
thus
entering
food
chain
with
possible
negative
effects.
The
present
study
investigated,
for
first
time,
MP
presence
in
cuttlefish
(Sepia
officinalis)
eggs
and
their
association
embryonic
development.
Cuttlefish
were
sampled
from
four
different
sites
along
Marche
region
(Senigallia,
Ancona,
Numana,
San
Benedetto
del
Tronto).
Embryo
hatchling
biometric
parameters
evaluated
internal
structural
integrity
was
examined
through
histological
analysis.
MPs
detected
characterized
embryos
yolk
samples.
identified
all
(size
<
5
µm),
however,
has
not
been
associated
an
impairment
of
either
embryo
or
structures.
Noteworthy,
highest
number
(in
both
samples)
found
Numana
(37%
total
amount),
where
lowest
size
observed.
On
other
hand,
mantle
length
(9%)
Ancona.
Overall,
only
fragments
sphere
types
(74
26%,
respectively)
observed,
most
frequent
polymers
Polyvinyl
chloride
(52%),
Polypropylene,
Cellulose
acetate
(15%
both).
Further
studies
needed
to
assess
effects
on
quality
assimilation.
