The impact of settleable atmospheric particulate on the energy metabolism, biochemical processes, and behavior of a sentinel mangrove crab
Journal of Hazardous Materials,
Journal Year:
2024,
Volume and Issue:
477, P. 135316 - 135316
Published: July 25, 2024
We
use
the
sentinel
mangrove
crab,
Minuca
rapax,
as
a
model
to
investigate
effects
of
metallic
settleable
particulate
matter
(SePM)
on
wetland.
Multiple
levels
energetic
responses,
including
(i)
metabolic
rate
and
energy
budget,
(ii)
oxidative
stress,
(iii)
behavioral
response
by
righting
time,
were
assessed
well
metal
metalloid
content
in
crabs
exposed
0,
0.1
1
g.L
Language: Английский
Microplastics impair the reproductive behavior and life history traits of the amphipod Parhyale hawaiensis
Alethia I. Ramírez-Olivares,
No information about this author
Jorge Arturo Vargas-Abúndez,
No information about this author
Mariana V. Capparelli
No information about this author
et al.
Marine Pollution Bulletin,
Journal Year:
2024,
Volume and Issue:
205, P. 116630 - 116630
Published: June 25, 2024
We
investigated
the
distribution
and
effects
of
waterborne
microplastic
(MP)
(polyethylene
microspheres,
53–63
um)
on
emergent
model
for
ecotoxicology,
amphipod
Parhyale
hawaiensis,
during
30
days
exposure.
The
following
life-history
traits
were
measured:
(1)
survival,
(2)
specific
growth
rate
(SGR),
(3)
reproductive
performance
(precopulatory
pairing
behavior,
fecundity,
time
to
release
neonates),
(4)
molting
frequency,
(5)
F1
newborn
offspring
survival
(6)
MP
bioaccumulation.
No
significant
mortality
or
molt
was
seen
in
any
treatments.
caused
a
reduction
SGR,
being
more
pronounced
females.
precopulatory
3-fold
longer
amphipods
exposed
MP.
Fecundity
decreased
by
50
%,
juveniles
6.7
Finally,
neonate
80
%
after
ten
release.
disrupts
mechanisms
triggers
adverse
life
history
P.
hawaiensis.
Language: Английский
Is the shrimp Macrobrachium amazonicum sold in an urban center in the central Brazilian Amazon contaminated with microplastics?
Acta Amazonica,
Journal Year:
2024,
Volume and Issue:
54(4)
Published: Jan. 1, 2024
ABSTRACT
Growing
global
concern
surrounds
microplastics,
found
in
various
environments.
However,
data
on
microplastics
contamination
salted
shrimp
and
associated
health
risks
remain
scarce.
We
analyzed
whether
shrimps
sold
markets
a
main
city
Amazonas
state
(Brazil),
are
contaminated
with
microplastics.
examined
150
specimens
of
Macrobrachium
amazonicum
396
potential
129
individuals
(86%).
The
number
particles
per
gram
body
mass
was
highest
the
gastrointestinal
tract,
60%
them
ranging
size
from
1,000
to
5,000
µm,
predominantly
dark
blue
fibers
(80%).
likely
originates
environment
salt
used
during
processing
region
where
captured.
Our
findings
point
risk
many
consumers
Amazon
region.
Language: Английский