Out-of-season
breeding
is
an
effective
method
for
addressing
seasonal
shortages
of
fry
in
aquaculture
species
such
as
largemouth
bass
(LMB)
year-round
production.
Anti-seasonal
reproduction
LMB
can
be
achieved
by
subjecting
to
prolonged
low-temperature
conditions;
however,
this
affects
their
sperm
quality
and
leads
a
decrease
reproductive
efficiency.
Therefore,
it
crucial
investigate
issues
the
damage
testis
related
mechanisms
caused
stress
during
out-of-season
breeding.
In
experiment,
we
assessed
changes
testes
time
comparing
testicular
histomorphology,
ultrastructure,
hormone-related
indices,
antioxidant
capacity,
apoptosis.
We
synthesized
measurements
from
three
identically
treated
cement
ponds
fish
exposed
water
temperatures
13–16°C
assess
testes.
The
results
showed
that
(1)
delayed
production
promoted
redevelopment
LMB.
(2)
head
plasma
membrane
spermatozoa
was
separated,
middle
mitochondria
were
swollen.
(3)
Various
hormone
levels
(e.g.,
LH,
FSH,
T)
altered
experimental
period.
(4)
expression
enzymes
(cat,
sod,
gpx)
upregulated,
oxidative
occurred
(5)
apoptosis
genes
bax,
bcl2,
caspase3)
due
anti-seasonal
reproduction.
Moreover,
important
mitochondrial
pathway
(bid,
CYT-C)
indicating
spermatozoan
probably
through
pathway.
These
suggest
adversely
testis.
Our
findings
provide
new
insights
into
molecular
trigger
fish.
International Journal of Environmental Research and Public Health,
Год журнала:
2023,
Номер
20(13), С. 6237 - 6237
Опубликована: Июнь 27, 2023
Cortisol
is
the
main
glucocorticoid
released
during
stress
responses
in
most
fish
and
has
been
employed
to
investigate
different
stressors,
including
organic
pollutants.
This
review
discusses
shifts
cortisol
concentrations
examines
matrix
sampling
methods
(invasive
vs.
minimally
or
non-invasive)
analytical
determination
techniques
(immunoassays
liquid
chromatography-tandem
mass
spectrometry).
Assessments
on
pollutant
exposure
associated
adverse
effects
are
also
discussed.
Studies
this
regard
may
aid
identifying
toxicological
modes
of
action,
mechanistic
response,
toxicokinetics,
toxicodynamics,
as
well
pollution
sources
health
risks
fish,
ultimately
aiding
development
effective
management
strategies
mitigate
impacts
pollutants
populations
their
ecosystems.
Journal of Hydrology Regional Studies,
Год журнала:
2023,
Номер
49, С. 101497 - 101497
Опубликована: Авг. 2, 2023
The
Brahmaputra
River
Basin.
Basin
(BRB)
is
the
most
environmentally
fragile
and
politically
unstable
transboundary
river
basin
in
South
Asia.
Therefore,
incorporating
environmental
sector
into
water-energy-food
system
analysis
necessary
to
better
serve
water
resource
management
BRB.
Integrated
resources
can
provide
more
perspectives
for
alleviating
political
tension
promoting
cooperation
basin.
This
study
proposes
a
modeling
framework
explore
water-energy-food-environment
(WEFE)
nexus
analyze
opportunities
Employing
framework,
we
attempt
answer
three
questions:
(1)
how
understand
relationships
between
various
sectors
coordinate
their
demands?
(2)
How
do
these
influence
riparian
countries'
decisions?
(3)
What
measures
promote
sustainable
development
of
BRB
under
climate
change
infrastructure
development?
results
show
that
trade-off
curve
economic
benefits
costs
has
declining
marginal
value
When
constraints
are
raised,
countries
inclined
cooperate
obtain
benefits.
Full
increases
prompts
take
greener
road
among
shared
socioeconomic
pathways
(SSP126).
Water
project
construction
improve
utility
country,
thus
enhancing
its
discourse
power
on
benefit
reallocation.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Дек. 2, 2023
Abstract
The
large
use
of
fish
meal/fish
oil
in
carnivorous
feeds
is
the
main
concern
regarding
environmental
sustainability
aquaculture.
Here,
we
evaluated
effects
an
innovative
diet,
designed
to
be
(1)
environmentally
sustainable
by
lowering
marine
protein
content
while
being
(2)
cost
effective
using
alternative
raw
materials
with
acceptable
and
produced
on
industrial
scale,
growth
performance,
gut
microbiota
composition,
health
welfare
European
sea
bass
(
Dicentrarchus
labrax
),
a
key
species
Mediterranean
aquaculture,
reared
cages.
Results
show
that
specific
rate
fed
low
diet
was
significantly
lower
than
those
conventional
(0.67%
vs
0.69%).
Fatty
acid
profile
fillets
from
presented
significant
n-6
higher
n-3
when
compared
ones.
Then,
increase
abundance
Vibrio
reduction
Photobacterium
were
found
but
needs
further
investigation.
Finally,
no
major
alterations
for
observed,
combined
potential
slight
benefit
related
humoral
immunity.
Overall,
these
results
suggest
despite
moderately
affects
it
nevertheless
may
enhance
economic
Fishes,
Год журнала:
2025,
Номер
10(2), С. 59 - 59
Опубликована: Янв. 31, 2025
Changes
in
the
environment
promote
variations
fish
physiological
responses.
Genetic
variation
also
plays
a
role
variation.
To
explore
of
genetics
variation,
we
assessed
cardiac
function
(heart
rate,
stroke
volume,
and
output),
oxygen
consumption,
yolk
conversion
efficiency,
cost
development
embryonic
larval
AB
wild-type
NHGRI-1
zebrafish
(low
heterozygosity
line
backcrossed
from
wild-type)
exposed
to
different
temperature
regimes.
Fish
were
fertilization
7
days
post-fertilization
(dpf)
control
conditions
(28
°C,
21%
O2)
or
low
(23
O2),
high
(33
moderate
hypoxia
13%
severe
10%
O2).
We
hypothesized
that
(1)
variables
will
respond
similarly
both
lines
(2)
data
variability
be
lower
than
zebrafish.
Cardiac
decreased
at
Oxygen
consumption
was
increased
by
higher
fish.
Yolk
efficiency
Cost
mainly
hypoxia-treated
Supporting
our
hypothesis
contributes
showed
significantly
coefficients
84%
endpoints.
conclude
there
is
strong
genetic
component
fishes
are
useful
models
for
reducing
‘noise’
backgrounds
research
fish,
which
may
aid
interpretation
experimental
results
facilitate
reproducibility.
