Frontiers in Microbiology,
Journal Year:
2025,
Volume and Issue:
15
Published: Jan. 7, 2025
Understanding
the
diversity
and
function
of
fish
gut
microbiomes
has
advanced
substantially,
yet
many
aspects
remain
poorly
understood,
particularly
interplay
among
microbiota,
host
species,
environmental
factors
in
context
conservation.
This
review
explores
composition
abundance
bacterial
communities
key
aquaculture
groups-cyprinids,
ictalurids
(catfish),
salmonids,
cichlids
(tilapia)-alongside
model
organism
zebrafish,
across
diverse
geographic
regions.
The
findings
highlight
habitats
species
as
primary
determinants
microbiome
structure,
offering
a
global
perspective
on
these
microbial
communities.
Across
all
groups,
phyla
Firmicutes,
Fusobacteria,
Proteobacteria
consistently
dominated,
while
temperate,
sub-equatorial,
sub-tropical
regions
exhibited
highest
diversity,
underscoring
contribution
taxonomic
factors.
farm-raised
shows
significant
divergence
from
that
wild-caught
fish,
reflecting
impacts
ecological
management
differences.
dynamic
responses
microbiota
is
vital
for
guiding
conservation
efforts,
safeguarding
aquatic
biodiversity,
advancing
sustainable
practices.
Future
research
should
leverage
innovative
techniques
integrative
approaches,
both
experimental
theoretical,
to
uncover
functional
roles
predict
their
changes.
Expanding
coverage
will
be
critical
creating
comprehensive
framework
inform
strategies.
Collectively,
this
highlights
transformative
potential
addressing
challenges
biology.
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(9), P. e19789 - e19789
Published: Sept. 1, 2023
Fish
feed
is
becoming
an
increasingly
vital
source
of
nourishment
for
farmed
fish,
which
are
mainly
coming
from
marine
fish
and
agricultural
sources.
Anthropogenic
particles,
such
as
microplastics,
abundant
in
both
byproducts
that
utilized
to
make
feed.
This
study
investigated
whether
could
be
a
microplastic
contamination,
revealed
20
weeks
adult
tilapia
might
consume
up
268.45
±
1.438
particles
via
where
finisher
type
feeds
were
found
mostly
contributory
this
number.
The
microplastics
initially
observed
with
stereomicroscope
FESEM-EDS.
Polymeric
composition
was
determined
polypropylene
(PP),
nylon-6
(NY-6),
polyethylene
terephthalate
(PET),
polystyrene
(PS),
polyvinyl
alcohol
(PVA),
(PE),
high-
low-density
(HDPE,
LDPE),
ethylene
vinyl
acetate
(EVA),
polycarbonate
(PC),
poly
(PVAc),
urethane
(PU)
chloride
(PVC)
by
FTIR.
Results
also
the
size
all
ranged
14
μm
4480
μm,
550
45.45
11,600
56.1
particles/kg
FESEM-EDS
data
demonstrated
overlook
surface
along
attachment
heavy
metals
onto
Pb,
Ni,
Co
create
additional
health
risks.
Fish Physiology and Biochemistry,
Journal Year:
2024,
Volume and Issue:
50(3), P. 1003 - 1024
Published: Feb. 22, 2024
Abstract
The
present
study
investigated
the
effect
of
replacing
fishmeal
(FM)
with
insect
meal
Hermetia
illucens
(HI)
in
diet
Sparus
aurata
farmed
inshore
on
growth,
gut
health,
and
microbiota
composition.
Two
isolipidic
(18%
as
fed)
isoproteic
(42%
diets
were
tested
at
farm
scale:
a
control
without
HI
an
experimental
11%
FM.
At
end
25-week
feeding
trial,
final
body
weight,
specific
growth
rate,
feed
conversion
hepatosomatic
index
not
affected
by
diet.
Gross
morphology
gastrointestinal
tract
liver
was
unchanged
showed
no
obvious
signs
inflammation.
High-throughput
sequencing
16S
rRNA
gene
amplicons
(MiSeq
platform,
Illumina)
used
to
characterize
microbial
community
profile
that
Proteobacteria,
Fusobacteria,
Firmicutes
dominant
phyla
gilthead
seabream,
regardless
Dietary
inclusion
altered
significantly
decreasing
abundance
Cetobacterium
increasing
relative
Oceanobacillus
Paenibacillus
genera.
Our
results
clearly
indicate
alternative
animal
protein
source
positively
affects
seabream
beneficial
genera,
thereby
improving
health
maintaining
performance
S.
from
coastal
farms.
Fishes,
Journal Year:
2023,
Volume and Issue:
8(12), P. 607 - 607
Published: Dec. 14, 2023
The
aquaculture
industry
is
looking
for
sustainable
alternatives
to
conventional
fish
meals
in
feed,
and
insect-based
are
proving
be
a
promising
solution.
These
nutritionally
optimal
as
they
have
high
protein
content
an
ideal
amino
acid
profile.
However,
the
presence
of
chitin,
component
insect
exoskeleton
these
presents
both
opportunity
challenge.
Chitosan,
derivative
known
improve
physiological
functions
fish,
including
growth,
immunity,
disease
resistance.
While
chitin
its
chitosan
offer
several
benefits,
their
can
affect
digestibility
feed
some
species,
making
inclusion
aquafeeds
complex.
studies
suggest
positive
effects,
problems,
such
reduced
growth
rates
certain
emphasize
need
further
research
on
digestion
fish.
Chitinase,
enzyme
that
breaks
down
being
investigated
potential
solution
nutritional
value
aquafeed.
This
review
provides
comprehensive
analysis
applications,
challenges
using
chitinase
aquaculture,
highlighting
enzyme’s
role
improving
digestibility,
control,
environmental
sustainability.
Extensive
required
fully
understand
enzymes
optimize
applications
this
dynamic
field.
Overall,
insight
into
evolving
landscape
within
practices.
British Journal Of Nutrition,
Journal Year:
2024,
Volume and Issue:
131(8), P. 1326 - 1341
Published: Jan. 2, 2024
Abstract
The
aim
of
this
study
is
to
determine
what
extent
the
addition
chitinase
black
soldier
fly
(BSF)
larval
meal
enriched
or
not
with
long-chain
PUFA
(LC-PUFA)
could
improve
growth,
protein
digestion
processes
and
gut
microbial
composition
in
Nile
tilapia.
Two
different
types
BSF
were
produced,
which
larvae
reared
on
substrates
formulated
vegetable
culture
substrate
(VGS)
marine
fish
offal
(FOS).
raised
VGS
was
α
-linolenic
acid
(ALA),
while
that
FOS
ALA
+
EPA
DHA.
Six
BSF-based
diets,
chitinase,
compared
a
control
diet
based
fishmeal
oil
(FMFO).
doses
(D)
from
Aspergillus
niger
(2
g
5
g/kg
feed)
added
diets
(VGD0
FOD0)
obtain
four
additional
diets:
VGD2,
VGD5,
FOD2
FOD5.
After
53
d
feeding,
results
showed
BSF/FOS-based
induced
feed
utilisation,
efficiency
digestibility,
as
well
growth
comparable
FMFO
diet,
but
better
than
BSF/VGS-based
diets.
supplementation
BSF/FOS
increased
intestine
relative
abundance
beneficial
microbiota
such
those
Bacillaceae
family.
LC-PUFA-enriched
associated
be
used
an
effective
alternative
order
processes,
ultimately
rate.
Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(4), P. 744 - 744
Published: April 6, 2024
This
study
addressed
the
urgent
need
for
sustainable
protein
sources
in
aquaculture
due
to
depletion
of
marine
resources
and
rising
costs.
Animal
sources,
particularly
poultry
by-product
meal
(PBM)
insect
exuviae
meal,
were
investigated
as
viable
alternatives
fishmeal
(FM).
The
research
confirmed
successful
replacement
FM
with
a
combination
PBM
(up
50%)
diet
European
seabass
without
compromising
growth,
feed
conversion,
gut
health,
liver
fat
content.
In
particular,
growth
was
robust
both
formulations,
25%
showing
better
results.
Histological
examinations
showed
good
contradicting
concerns
previous
studies.
paper
emphasizes
importance
holistic
analyzes
that
go
beyond
parameters
include
histomorphological
investigations.
results
show
insect/exuviae
is
well
tolerated
by
seabass,
which
consistent
reports
literature
it
mitigating
negative
effects
on
health.
A
detailed
analysis
microbiota
revealed
decrease
Firmicutes/Proteobacteria
ratio
an
increase
potentially
pathogenic
bacteria.
However,
formulation
containing
partially
counteracted
this
effect
preserving
beneficial
Lactobacillus
promoting
synthesis
short-chain
fatty
acids
(SCFAs),
butyrate.
Chitin-rich
components
from
associated
improved
supported
increased
production
SCFAs,
are
known
their
anti-inflammatory
properties.
concludes
can
replace
up
50%
supporting
practices.
Despite
some
changes
microbiota,
mitigated
addition
exuviae,
highlighting
potential
prebiotic
fish
productivity
contribute
circular
economy
aquaculture.
Frontiers in Marine Science,
Journal Year:
2024,
Volume and Issue:
11
Published: Dec. 10, 2024
This
review
delves
into
the
increasing
interest
in
probiotics
and
paraprobiotics
as
a
viable
alternative
to
antibiotics
aquaculture,
highlighting
their
potential
enhance
fish
health
prevent
diseases.
As
aquaculture
industry
continues
its
global
expansion,
addressing
challenges
associated
with
disease
outbreaks
high-density
populations
becomes
imperative.
The
underscores
promising
role
of
sustainable
strategy
mitigate
these
challenges.
diverse
positive
impacts
various
probiotic
strains
such
Arthrobacter
,
Bacillus
Lactobacillus
Bifidobacterium
Clostridium
others
emphasize
roles
enhancing
growth,
resistance
diseases
(including
bacterial,
viral,
parasitic
infections),
stress
reduction,
water
quality
management,
environmental
sustainability.
Challenges
stability,
host
specificity,
regulatory
considerations
must
be
addressed
optimize
use
aquaculture.
Additionally,
paraprobiotics,
or
non-viable
microbial
cells,
present
safer
criticized
even
live
environments
where
viability
poses
risk.
These
inactivated
cells
retain
ability
modulate
immune
system
improve
gut
health,
offering
complementary
approach
prevention.
advocates
for
systematic
combining
research,
innovation,
collaboration
effectively
integrate
farming
practices.
Furthermore,
mechanisms
by
which
microbiota,
produce
antimicrobial
compounds,
strengthen
fish’s
have
been
elucidated.
Moreover,
practical
applications
farming,
including
optimal
administration
methods
limitations
faced
industry,
discussed.
Emphasis
on
importance
continued
research
explore
new
paraprobiotic
develop
innovative
delivery
systems
ensure
sustainability
has
By
reducing
need
antibiotics,
improving
quality,
probiotics,
contribute
more
environmentally
responsible
operations.
Antioxidants,
Journal Year:
2025,
Volume and Issue:
14(4), P. 371 - 371
Published: March 21, 2025
Various
innovative
fish
feeds
were
tested
for
the
production
of
koi
carp
in
a
recirculating
aquaculture
system,
considering
insect
meal
(Acheta
domestica)
as
main
protein
source
and
phytogenic
additives
(Curcuma
longa—turmeric
Beta
vulgaris—beetroot)
antioxidants,
spirit
sustainable
practice.
The
growth
performance,
metabolic
rate
(respirometry),
hematological
profile,
blood
biochemical
indicators,
oxidative
stress
determined,
using
according
to
following
experimental
design:
CF—commercial
feed,
IF—innovative
feed
based
on
cricket
meal,
BIF—innovative
(IF)
with
beetroot,
TIF—innovative
turmeric.
TIF
recorded
best
rate.
lowest
values
lipid
peroxidation
(MDA),
standard
(SMR),
routine
(RMR)
registered
IF
variants.
A
reduction
MDA
was
noted,
correlated
decrease
regarding
SMR
RMR
TIF.
An
intensification
amylase
BIF.
Compared
CF,
it
seems
that
IF,
TIF,
BIF
had
beneficial
effect
by
reducing
cholesterol,
HDL
alanine
aminotransferase,
triglycerides,
urea
increasing
concentration
calcium
hormone
plasma.
