Unraveling the Potential of Black Soldier Fly Larvae as a Sustainable Protein Source for Nile Tilapia Production in Diverse Aquaculture Systems
Aquaculture Nutrition,
Год журнала:
2025,
Номер
2025(1)
Опубликована: Янв. 1, 2025
Aquaculture
plays
a
critical
role
in
global
food
security,
with
Nile
tilapia
(
Oreochromis
niloticus
)
recognized
for
its
adaptability
and
robust
growth.
However,
traditional
feeds,
heavily
reliant
on
fishmeal
(FM)
soybean
meal,
face
economic
environmental
challenges.
In
response,
black
soldier
fly
larvae
meal
(BSFLM)
has
emerged
as
promising,
nutrient‐dense
alternative.
This
review
synthesizes
existing
literature
BSFLM’s
nutritional
profile
suitability
diets,
while
acknowledging
that
the
data
come
from
diverse
independent
studies
conducted
under
varying
conditions
husbandry
practices.
BSFLM
consistently
provides
high‐quality
protein
(29.9%–48.2%),
aligning
tilapia’s
requirements,
is
rich
essential
minerals
fatty
acids.
While
lipid
content
(25.69%–28.43%)
may
require
processing
adjustments,
overall
supports
health
Trends
case
suggest
certain
systems,
such
hapas
placed
ponds,
have
reported
favorable
growth
feed
conversion
efficiencies
at
50%
FM
replacement
levels.
these
findings
cannot
be
directly
compared
across
all
due
to
differences
methodologies,
culture
conditions,
inclusion
rates.
Instead,
they
collectively
indicate
can
effectively
replace
sources
enhance
sustainability.
As
research
production
scale
up,
careful
consideration
of
context,
system
design,
formulations
will
essential.
Collaborative
efforts
among
researchers,
industry,
policymakers
further
refine
use
BSFLM,
ultimately
advancing
sustainability
aquaculture.
Язык: Английский
Effects of climate warming
Elsevier eBooks,
Год журнала:
2024,
Номер
unknown, С. 14 - 31
Опубликована: Янв. 1, 2024
Язык: Английский
Impacts of ocean warming on fish size reductions on the world’s hottest coral reefs
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Июль 1, 2024
Abstract
The
impact
of
ocean
warming
on
fish
and
fisheries
is
vigorously
debated.
Leading
theories
project
limited
adaptive
capacity
tropical
fishes
14-39%
size
reductions
by
2050
due
to
mass-scaling
limitations
oxygen
supply
in
larger
individuals.
Using
the
world’s
hottest
coral
reefs
Persian/Arabian
Gulf
as
a
natural
laboratory
for
-
where
species
have
survived
>35.0
°C
summer
temperatures
over
6000
years
are
14-40%
smaller
at
maximum
compared
cooler
locations
we
identified
two
pathways
that
enhance
survival
elevated
across
10
metabolic
swimming
performance
metrics.
Comparing
Lutjanus
ehrenbergii
Scolopsis
ghanam
from
both
inside
outside
27.0
°C,
31.5
35.5
reveal
these
show
lower-than-expected
rise
basal
demands
right-shifted
thermal
window,
which
aids
maintaining
aerobic
°C.
Importantly,
our
findings
challenge
traditional
oxygen-limitation
theories,
suggesting
mismatch
energy
acquisition
demand
primary
driver
reductions.
Our
data
support
modified
resource-acquisition
theory
explain
how
leads
species-specific
why
individuals
evolutionarily
favored
under
temperatures.
Язык: Английский
Fish gill surface area can keep pace with metabolic oxygen requirements across body mass and temperature
Functional Ecology,
Год журнала:
2024,
Номер
38(4), С. 755 - 764
Опубликована: Янв. 21, 2024
Abstract
Climate
warming
is
driving
the
maximum
attainable
size
of
many
fish
species
to
decrease,
yet
mechanisms
underlying
this
‘shrinking’
phenomenon
are
not
well
understood.
The
gill
oxygen
limitation
(GOL)
hypothesis
perhaps
most
prominent
mechanistic
proposition,
asserting
that,
as
grow,
two‐dimensional
surface
area
(GSA)
progressively
fails
supply
enough
support
continued
growth
three‐dimensional
body—a
process
exacerbated
by
increased
metabolism
associated
with
warming.
However,
these
ideas
have
been
hotly
debated
owing
limited
empirical
understanding
how
GSA
develops
respect
a
fish's
body
mass
and
requirements.
For
first
time,
we
addressed
knowledge
gap
rearing
Galaxias
maculatus
for
5
months
at
normal
(15°C)
elevated
(20°C)
summer
temperatures,
(hyperoxia)
or
without
(normoxia)
supplementary
oxygen.
Quantifying
individual
metabolic
rate
traits
across
sizes
encompassing
species'
ontogeny,
found
little
evidence
change
in
proportion
available
per
unit
(termed
S
metric)
no
improvements
under
hyperoxia.
Importantly,
temperature
where
should
be
pronounced,
metric
did
either
treatment
(allometric
exponents
were
different
from
0).
These
results
indicate
that
gills
can
grow
ways
an
individual's
requirements,
contrasting
suggestion
reductions
response
climate
driven
insurmountable
geometric
constraint
gills.
Read
free
Plain
Language
Summary
article
on
Journal
blog.
Язык: Английский
Individual clown anemonefish shrink to survive heat stress and social conflict
Science Advances,
Год журнала:
2025,
Номер
11(21)
Опубликована: Май 21, 2025
Vertebrate
growth
is
generally
considered
to
be
unidirectional,
but
challenging
environmental
conditions,
such
as
heatwaves,
may
disrupt
normal
patterns
and
affect
individual
survival.
Here,
we
investigate
the
of
clown
anemonefish,
Amphiprion
percula
,
during
a
marine
heatwave.
We
measured
length
134
wild
anemonefish
every
month
monitored
temperature
at
scale
their
anemone
for
five
lunar
months.
Our
results
show
that
shrink
in
response
heat
stress
individuals
also
display
relatively
more
catch-up
growth.
Further,
shrinking
modulated
by
social
rank
size,
often
coordinated
fashion
with
breeding
partner
have
higher
survival
event.
In
conclusion,
plastic
stress,
constrained
environment,
can
lead
short-term
benefits.
If
this
plasticity
were
widespread
fishes,
it
marked
consequences
populations
communities
heatwaves
become
frequent.
Язык: Английский
Does death drive the scaling of life?
Biological reviews/Biological reviews of the Cambridge Philosophical Society,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 29, 2024
ABSTRACT
The
magnitude
of
many
kinds
biological
structures
and
processes
scale
with
organismal
size,
often
in
regular
ways
that
can
be
described
by
power
functions.
Traditionally,
these
“biological
scaling”
relationships
have
been
explained
based
on
internal
geometric,
physical,
energetic
constraints
according
to
universal
natural
laws,
such
as
the
“surface
law”
“3/4‐power
law”.
However,
during
last
three
decades
it
has
become
increasingly
apparent
scaling
vary
greatly
response
various
external
(environmental)
factors.
In
this
review,
I
propose
provide
several
lines
evidence
supporting
a
new
ecological
perspective
call
“mortality
theory
ecology”
(MorTE).
According
viewpoint,
mortality
imposes
time
limits
growth,
development,
reproduction
organisms.
Accordingly,
small,
vulnerable
organisms
subject
high
due
predation
other
environmental
hazards
evolved
faster,
shorter
lives
than
larger,
more
protected
A
MorTE
also
includes
corollary,
size‐related
causative
factors
(e.g.
intraspecific
resource
competition,
geometric
surface
area
volume
effects
supply/transport
protection
tissues
from
hazards,
homeostatic
regulatory
systems,
incidence
pathogens
parasites,
etc.)
impact
life.
mortality‐centred
approach
successfully
predicts
ranges
body‐mass
slopes
observed
for
traits.
Furthermore,
argue
rate
should
considered
ultimate
(evolutionary)
driver
life,
is
expressed
context
proximate
(functional)
drivers
information‐based
regulation
spatial
(geometric)
(metabolic)
constraints.
Язык: Английский
Supplemental oxygen does not improve growth but can enhance reproductive capacity of fish
Proceedings of the Royal Society B Biological Sciences,
Год журнала:
2023,
Номер
290(2010)
Опубликована: Ноя. 1, 2023
Fish
tend
to
grow
faster
as
the
climate
warms
but
attain
a
smaller
adult
body
size
following
an
earlier
age
at
sexual
maturation.
Despite
apparent
ubiquity
of
this
phenomenon,
termed
temperature-size
rule
(TSR),
heated
scientific
debates
have
revealed
poor
understanding
underlying
mechanisms.
At
centre
these
are
prominent
marginally
tested
hypotheses
which
implicate
some
form
'oxygen
limitation'
proximate
cause.
Here,
we
test
role
oxygen
limitation
in
TSR
by
rearing
juvenile
Galaxias
maculatus
for
full
year
current-day
(15°C)
and
forecasted
(20°C)
summer
temperatures
while
providing
half
each
temperature
group
with
supplemental
(hyperoxia).
True
TSR,
fish
warm
treatments
grew
reached
maturation
than
their
cooler
conspecifics.
Yet,
despite
significantly
increasing
maximum
uptake
rate,
our
findings
contradict
leading
showing
that
average
did
not
differ
between
normoxia
hyperoxia
groups.
We
did,
however,
discover
extended
reproductive
window,
independent
temperature.
conclude
intense
resource
investment
reproduction
could
expose
bottleneck
where
becomes
limiting
factor.
Язык: Английский
Fishes in Warming Waters, the Gill-Oxygen Limitation Theory and the Debate Around Mechanistic Growth Models
Fishes,
Год журнала:
2024,
Номер
9(11), С. 430 - 430
Опубликована: Окт. 25, 2024
Mechanistic
explanations
of
the
impact
climate
change
on
fish
growth
are
currently
under
debate.
However,
critical
assessments
even
most
prominent
theories
not
always
based
accurate
interpretations
their
underlying
mechanistic
models.
This
contribution
addresses
some
major
misunderstandings
still
causing
Gill-Oxygen
Limitation
Theory
(GOLT)
from
being
examined
its
actual
structuring
elements
and
assumptions,
rather
than
erroneous
perceptions.
As
we
argue,
recent
critiques
GOLT
implausible
respirometry
data
that
invoked
to
distinguish
maintenance
costs
overhead
growth.
Discussing
current
state
debate,
emphasize
fact
fasting
young
and,
thus,
growing
for
short
periods
time
is
sufficient
suppress
energy
(i.e.,
oxygen)
allocation
In
process
dealing
with
these
issues,
several
cases
apparent
‘counter-evidence’
discussed.
Highlighting
need
base
discussions
examinations
predictions,
recommend
testing
theory
should
focus
broad
reviews
or
meta-analyses,
e.g.,
datasets
gill
surface
area
relationship
performance
different
temperature
regimes.
Язык: Английский