npj Biodiversity,
Journal Year:
2024,
Volume and Issue:
3(1)
Published: Sept. 10, 2024
The
current
state
of
marine
mammal
populations
reflects
increasing
anthropogenic
impacts
on
the
global
Ocean.
Adopting
a
holistic
approach
towards
health,
incorporating
healthy
individuals
and
populations,
these
taxa
present
indicators
health
overall
Ocean
system.
Their
deterioration
at
animal,
population
ecosystem
level
has
implications
for
human
In
Anthropocene,
multiple
planetary
boundaries
have
already
been
exceeded,
quiet
tipping
points
in
may
further
uncertainties.
Long
short-term
monitoring
sense
is
urgently
required
to
assist
evaluating
reversing
impact
Health
aid
climate
change
mitigation.
Frontiers in Marine Science,
Journal Year:
2023,
Volume and Issue:
10
Published: April 20, 2023
Introduction
Copepods
present
the
largest
and
most
diverse
group
of
zooplankton
their
feeding
behavior
can
affect
top-down
bottom-up
processes.
Thus,
how
efficient
is
executed
determines
abundance
copepods’
prey
predators
and,
with
that,
carbon
transfer
storage
in
ecosystems.
The
rise
anthropogenic
underwater
noise
from
shipping,
oil
exploration
exploitation,
wind
farm
construction
operation,
more,
increasingly
changing
marine
acoustic
environment.
This
pollution
have
detrimental
effects
on
biological
life.
Studies
this
topic
indicate
that
adversely
affects
primary
producers,
mammals,
fish,
invertebrates.
However,
little
data
exist
zooplankton.
Methods
Here,
we
investigated
ingestion
clearance
rates
copepod
Acartia
tonsa
a
motile
phytoplankton
as
function
density
under
ambient
aquarium
sound
conditions
when
exposed
to
playback,
harbor
traffic
noise.
Results
We
measured
significantly
decreased
A.
compared
conditions.
negative
impact
was
found
at
all
given
cell
densities
between
1k
10k
cells
ml
−1
.
Clearance
were
fitted
Rogers
random
predator
equation
which
revealed
capture
exposure
while
handling
times
remained
same
both
treatments.
Discussion
Our
results
call
for
follow-up
studies
focus
driven
community-effects
field
experiments
confirm
laboratory
predict
outcome
world
multiple
stressors.
Further,
underlying
mechanism
copepods
still
unknown.
Noise
may
distract
or
mask
hydromechanical
cues
prey.
also
physiology
morphology
would
lead
changes
behavior.
All
potential
mechanisms
need
be
rigorously
future
experiments.
Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(14), P. 5678 - 5692
Published: March 30, 2023
Mercury
bioaccumulation
from
deep-ocean
prey
and
the
extreme
life
history
strategies
of
adult
female
northern
elephant
seals
(Mirounga
angustirostris)
provide
a
unique
system
to
assess
interactive
effects
mercury
stress
on
animal
health
by
quantifying
blood
biomarkers
in
relation
(skeletal
muscle
mercury)
cortisol
concentrations.
The
thyroid
hormone
thyroxine
(tT4)
antibody
immunoglobulin
E
(IgE)
were
associated
with
concentrations
interactively,
where
magnitude
direction
association
each
biomarker
or
changed
depending
concentration
other
factor.
For
example,
when
lowest,
tT4
was
positively
related
mercury,
whereas
had
negative
relationship
that
highest
Additionally,
we
observed
two
hormones,
triiodothyronine
(tT3)
reverse
(rT3),
negatively
(rT3)
an
additive
manner.
As
tT3
late
breeding
at
median
decreased
14%
across
range
We
also
M
(IgM),
pro-inflammatory
cytokine
IL-6
(IL-6),
reproductive
hormone,
estradiol,
but
not
cortisol.
Specifically,
estradiol
molting
50%
These
results
indicate
important
physiological
free-ranging
apex
marine
predators
interactions
between
extrinsic
stressors.
Deleterious
animals'
abilities
maintain
homeostasis
(thyroid
hormones),
fight
off
pathogens
disease
(innate
adaptive
immune
system),
successfully
reproduce
(endocrine
system)
can
have
significant
individual-
population-level
consequences.
Marine Pollution Bulletin,
Journal Year:
2024,
Volume and Issue:
206, P. 116715 - 116715
Published: July 17, 2024
The
contribution
of
non-indigenous
species
to
the
transfer
contaminants
in
invaded
food
webs
represents
an
active
research
area.
Here
we
measured
trace
metals
and
CN
stable
isotopes
five
populations
invasive
Atlantic
blue
crab
Callinectes
sapidus
baseline
bivalve
from
Spain,
Italy
Greece.
They
were
used
estimate
trophic
effects
position
isotopic
niche
C.
sapidus.
Maximum
occurred
where
showed
largest
niches
highest
positions;
furthermore,
consistency
metal
profiles
between
bivalves
crabs
co-varied
with
latters.
Omnivory
may
influence
success
species,
but
also
limit
its
effectiveness
for
biomonitoring.
However,
our
results
indicated
that
analysis
provides
a
clarifying
background
cast
patterns
contamination
as
well
other
omnivorous
biomonitor
species.
Journal of Xenobiotics,
Journal Year:
2024,
Volume and Issue:
14(3), P. 1130 - 1142
Published: Aug. 22, 2024
In
recent
decades,
the
global
vanadium
(V)
industry
has
been
steadily
growing,
together
with
interest
in
potential
use
of
V
compounds
as
therapeutics,
leading
to
release
marine
environment
and
making
it
an
emerging
pollutant.
Since
climate
change
can
amplify
sensitivity
organisms
already
facing
chemical
contamination
coastal
areas,
here,
for
first
time,
we
investigated
combined
impact
warming
conditions
on
development
npj Biodiversity,
Journal Year:
2024,
Volume and Issue:
3(1)
Published: Sept. 10, 2024
The
current
state
of
marine
mammal
populations
reflects
increasing
anthropogenic
impacts
on
the
global
Ocean.
Adopting
a
holistic
approach
towards
health,
incorporating
healthy
individuals
and
populations,
these
taxa
present
indicators
health
overall
Ocean
system.
Their
deterioration
at
animal,
population
ecosystem
level
has
implications
for
human
In
Anthropocene,
multiple
planetary
boundaries
have
already
been
exceeded,
quiet
tipping
points
in
may
further
uncertainties.
Long
short-term
monitoring
sense
is
urgently
required
to
assist
evaluating
reversing
impact
Health
aid
climate
change
mitigation.
