Animals,
Journal Year:
2024,
Volume and Issue:
14(6), P. 886 - 886
Published: March 13, 2024
Plastic
pollution
is
a
global
concern
that
has
significant
impact
on
marine
life.
widely
used
and
become
pervasive
pollutant
in
environments.
contamination
been
documented
both
environments
biota.
cetacean
gastro-intestinal
tract
(GIT)
content
received
limited
attention,
especially
the
Black
Sea.
This
study
aims
to
investigate
plastic
GITs
of
bottlenose
dolphins
harbour
porpoises,
introducing
novel
methodology.
Given
exploration
this
issue
Sea,
research
predominantly
focuses
microplastic
contamination.
The
were
sampled
through
necropsy
from
stranded
by-caught
cetaceans,
was
washed
multi-sieves
tool.
material
retained
each
sieve
analysed
following
specific
protocols.
All
(100%)
contained
plastics
(meso-
microplastics).
In
total,
1059
items
(fibres,
fragments,
beads)
ranging
22.86
µm
5776
found,
suggesting
high
level
Sea
cetaceans.
Future
efforts
should
concentrate
increasing
number
samples
using
results
for
implementation
Marine
Strategy
Framework
Directive
(MSFD).
Toxics,
Journal Year:
2024,
Volume and Issue:
12(1), P. 64 - 64
Published: Jan. 12, 2024
The
co-existence
of
microplastics
(MPs)
and
methamphetamine
(METH)
in
aquatic
ecosystems
has
been
widely
reported;
however,
the
joint
toxicity
associated
mechanisms
remain
unclear.
Here,
zebrafish
larvae
were
exposed
individually
or
jointly
to
polystyrene
(PS)
polyvinyl
chloride
(PVC)
MPs
(20
mg/L)
METH
(1
5
for
10
days.
mortality,
behavioral
functions,
histopathology
fish
from
different
groups
determined.
PS
posed
a
stronger
lethal
risk
than
PVC
MPs,
while
addition
at
mg/L
significantly
increased
mortality.
Obvious
deposition
was
observed
larvae's
intestinal
tract
exposure
groups.
Meanwhile,
treatment
with
induced
deposits
hydrops
fish,
this
effect
enhanced
METH.
Furthermore,
suppressed
locomotor
activation
larvae,
showing
extended
immobility
duration
lower
velocity.
stimulated
outcome
but
had
no
on
PVC.
However,
combined
turn
angle,
which
declined
individual
MP
RNA
sequencing
gene
quantitative
analysis
demonstrated
that
activated
MAPK
signaling
pathway
C-type
lectin
steroid
hormone
synthesis
pathways
zebrafish,
contributing
cellular
apoptosis
immune
responses.
This
study
contributes
understanding
pharmaceuticals
highlighting
significance
mitigating
microplastic
pollution
preserve
health
organisms
human
beings.
