Journal of Experimental Zoology Part A Ecological and Integrative Physiology,
Journal Year:
2023,
Volume and Issue:
341(1), P. 5 - 30
Published: Oct. 19, 2023
Abstract
Decapods
occupy
all
aquatic,
and
terrestrial
semi‐terrestrial
environments.
According
to
their
osmoregulatory
capacity,
they
can
be
osmoconformers
or
osmoregulators
(hypo
hyperegulators).
The
goal
of
this
study
is
gather
data
available
in
the
literature
for
aquatic
decapods
verify
if
rare
hyporegulatory
capacity
associated
with
hyper‐regulatory
capacity.
metric
used
quantify
osmoregulation
was
osmotic
(OC),
gradient
between
external
internal
(hemolymph)
osmolalities.
We
employ
phylogenetic
comparative
methods
using
83
species
test
correlation
hyper
OC
hypo
OC,
beyond
ancestral
state
osmolality
habitat,
which
reconstruct
colonization
route.
Our
analysis
showed
a
signal
habitat
osmolality,
suggesting
that
hyper‐hyporegulators
similar
habitats
show
capacities.
findings
reveal
(mainly
shrimps
crabs)
originated
estuarine
waters.
Hyper
are
correlated
decapods,
evolution.
inhabit
environments
intense
salinity
variation
such
as
estuaries,
supratidal
mangrove
habitats,
undergo
selective
pressure
acquire
efficient
hyper‐hyporegulatory
mechanisms,
aided
by
low
permeabilities.
Therefore,
hyporegulation
observed
any
route
passes
through
extreme
variations
salinity,
estuaries
brackish
water.
Marine Environmental Research,
Journal Year:
2025,
Volume and Issue:
205, P. 107013 - 107013
Published: Feb. 19, 2025
Ocean
acidification
(OA)
affects
the
physiology
and
behaviour
of
some
marine
organisms,
impacting
their
development
metabolism
during
vulnerable
early-life
stages.
Among
them,
embryo
cuttlefish
develops
for
about
two
months
in
encapsulated
eggs
with
harsh
perivitelline
conditions
hypoxia
hypercapnia,
potentially
worsened
by
OA.
In
this
study,
common
Sepia
officinalis
embryos
juveniles,
were
exposed
to
five
pH
(pHT
8.08
7.43).
Growth,
metabolite
profiles
explored
embryonic
period
up
10
days-post-hatching.
Our
results
show
delayed
decreased
hatching
success
at
7.43,
but
no
effect
on
juvenile
weight
upon
hatching.
The
1H
Nuclear
Magnetic
Resonance
(NMR)
spectroscopy
revealed
that
decreasing
affected
metabolites
until
a
metabolic
suppression
was
observed
7.43.
O2
consumption
10d-old
juveniles
did
not
change
whereas
indicated
switch
anaerobic
under
low
pH.
Overall,
our
suggest
transition
from
stage
free
life
shapes
metabolomic
reprogramming
more
drastically
than
ocean
acidification.
Frontiers in Marine Science,
Journal Year:
2021,
Volume and Issue:
8
Published: Oct. 26, 2021
Assessing
decapod
sensitivity
to
regional-scale
ocean
acidification
(OA)
conditions
is
limited
because
of
a
fragmented
understanding
the
thresholds
at
which
they
exhibit
biological
response.
To
address
this
need,
we
undertook
three-step
data
synthesis:
first,
compiled
dataset
composed
27,000
datapoints
from
55
studies
responses
OA.
Second,
used
statistical
threshold
analyses
identify
OA
using
pH
as
proxy
for
13
response
pathways
physiology
behavior,
growth,
development
and
survival.
Third,
worked
with
panel
experts
review
these
thresholds,
considering
contributing
datasets
based
on
quality
study,
assign
final
associated
confidence
scores
consistency
findings
among
studies.
The
duration-dependent
were
within
range
7.40
7.80,
ranging
behavioral
physiological
mortality,
many
being
assigned
medium-to-high
confidence.
Organism
increased
duration
exposure
but
was
not
linked
specific
life-stage.
that
emerge
our
provide
foundation
consistent
interpretation
monitoring
or
numerical
model
simulations
support
climate
change
marine
vulnerability
assessments
evaluation
management
strategies.
Physiology & Behavior,
Journal Year:
2019,
Volume and Issue:
215, P. 112765 - 112765
Published: Dec. 5, 2019
Intertidal
organisms
rely
on
physiological
and
behavioral
adjustments
to
maintain
homeostasis
under
warm
exposure.
We
examined
the
effects
of
temperature
increase
related
climate
warming
physiology
behavior
two
fiddler
crab
species:
Leptuca
uruguayensis,
which
inhabits
mostly
vegetated
areas,
leptodactyla,
that
unvegetated
areas.
hypothesized
L.
uruguayensis
would
be
more
sensitive
than
leptodactyla.
Crabs
were
exposed
different
temperatures:
27
°C
(control),
31
33
(+4
+6
°C,
respectively)
for
15
days
evaluate
their
responses
(oxygen
consumption,
Q10,
ammonia
excretion
hepatosomatic
index)
2
observe
(feeding
rate
duration
burrow
retreat).
also
tested
in
situ
effect
air,
surface,
body
temperatures
claw-waving
display
both
species.
found
species
affected
differently
by
increasing
temperature.
showed
adaptation
limit
(Q10
<1),
oxygen
consumption.
Also,
comparison
with
control,
decreased
at
but
not
indicating
a
compensatory
mechanism
cope
thermal
stress.
In
contrast,
leptodactyla
was
able
adjust
its
metabolic
rise
~3)
reduce
excretion,
suggesting
changes
energetic
substrate
amino
acid
catabolism.
Higher
index
species,
increased
use
energy
reserve
(although
only
feeding
reduced).
Furthermore,
warmer
retreat
potentially
impacting
social
interactions,
such
as
mating.
Temperature
did
affect
frequency,
other
factors
may
this
behavior,
e.g.,
presence
females
competitors.
Specific
(e.g.,
microhabitat
selection)
morphological
attributes
larger
major
claw)
might
benefit
thermoregulation
each
since
no
differences
between
them
situ.
Therefore,
crabs
inhabit
areas
are
vulnerable
higher
change
geographic
range
result
warming,
while
tolerant
have
competitive
advantage
scenario.
Aquaculture Research,
Journal Year:
2018,
Volume and Issue:
50(2), P. 685 - 693
Published: Dec. 21, 2018
In
this
study,
we
evaluated
the
growth,
osmoregulation
and
energy
metabolism
of
oriental
river
prawn,
Macrobrachium
nipponense,
reared
during
6
weeks
with
different
salinities
(0,
8,
14
22
g/L).
The
results
showed
that
haemolymph
osmolality
M.
nipponense
increased
an
increase
in
ambient
osmotic
pressure;
isosmotic
point
was
490
mOs/kg
H2O.
prawns
a
higher
survival
rate,
weight
gain
rate
hepatopancreas
index
salinity
g/L.
Digestive
enzymes
were
all
affected
by
salinity,
highest
activities
observed
mRNA
expression
Na+-K+-ATPase
gills
p53
expressions
heat
shock
protein
90
glutathione
S-transferase
genes
significantly
8
Lipid
metabolism-related
expressed
glucose-6-phosphatase
gene
highly
g/L,
ecdysone
receptor
g/L
could
promote
growth
nipponense.
However,
conditions
may
cause
physiological
damage,
which
provides
theoretical
basis
for
brackish
water
culture
