Journal of Southwest Jiaotong University,
Journal Year:
2024,
Volume and Issue:
59(1)
Published: Jan. 1, 2024
The
sudden
vaname
shrimp
death
factors
are
overfeeding,
disease
infection,
failure
to
mount,
stress,
and
high
rainfall,
which
cause
potential
changes
in
water
pH
that
trigger
anxiety
shrimp.
next
factor
is
turbid
or
dirty
water.
Other
include
insufficient
oxygen
content
the
Therefore,
overcome
these
issues,
a
sensor
explicitly
handles
conditions
needed.
system
built
this
research
still
has
two
stages,
namely
real-time
monitoring
automatic
actuators,
being
developed.
placed
floating
condition
with
specific
materials
so
it
impossible
sink.
Some
tested
sensors
salinity,
pH,
turbidity,
dissolved
sensors.
Its
wireless
telecommunication
uses
LoRa
frequencies
of
920–923
MHz.
It
an
8-dBi
omnidirectional
antenna
Dragino
RFM96
Module
chip.
This
provides
data
on
entire
environment
needed
for
survive.
development
after
focused
actuator,
how
turn
Blower
automatically
needs
results
shown
from
experiment
all
brackish
quality
measurements
running
normally;
displayed
application
server
real
time
using
Tago.io
app
been
connected
LoRaWAN
Module,
915
MHz
found
end
devices.
installed
were
calibrated
produce
accurate
data.
Keywords:
environment,
innovative
sensor,
farming,
monitoring,
smart
aquaculture
DOI:
https://doi.org/10.35741/issn.0258-2724.59.1.18
Water,
Journal Year:
2025,
Volume and Issue:
17(2), P. 200 - 200
Published: Jan. 13, 2025
Various
aquaculture
modes
have
been
developed
to
satisfy
the
growing
demands
of
aquatic
products.
The
contaminated
characteristics
may
distribute
along
with
modes,
threatening
ecological
environment
varying
degrees.
Herein,
five
most
common
(small-scale
intensive
mode,
extensive
free-range
concentrated
contiguous
funnel-type
and
recirculating
system)
were
selected
study
(including
nine
kinds
water
quality
parameters
eight
antibiotics)
in
Henan
Province,
a
province
northern
China,
analysed
using
high-performance
liquid
chromatography
tandem
secondary
mass
spectrometry
(HPLC–MS/MS).
as
unique
mode
appears
highest
nutrient
content,
wherein
TN
TP
concentrations
reach
29.28
mg/L
2.20
mg/L,
respectively.
small-scale
has
average
antibiotic
concentration
different
502
ng/L.
Overall,
abundant
was
quinolones
(QNs),
followed
by
sulfonamides
(SAs),
chloramphenicols
(CAs),
tetracyclines
(TCs).
Pearson
correlation
analysis
showed
that
ENR
had
strong
positive
TN,
TP,
Zn,
indicating
enrofloxacin
(ENR)
existed
addictive
feed.
Moreover,
risk
quotient
(RQ)
indicated
posed
medium
high
risk,
highlighting
importance
antibiotics
man-agement
aquaculture.
This
work
provides
theoretical
guidance
for
formulation
pollutant
control
modes.
Ecology and Evolution,
Journal Year:
2025,
Volume and Issue:
15(2)
Published: Feb. 1, 2025
ABSTRACT
River
ecosystems
are
facing
significant
degradation
from
human
activities,
which
impact
both
biotic
(e.g.,
fish
and
invertebrates)
abiotic
components
water
habitat).
A
comprehensive
comparison
of
energy
flow
patterns
system
attributes
among
river
food
webs
under
different
levels
interference
is
highly
important
for
developing
management
strategies
to
protect
ecosystems.
Along
the
subtropical
Pearl
River,
six
spatial
zones,
including
agricultural,
industrial,
island,
urban,
factory,
estuarine
areas,
were
chosen
construct
Ecopath
models.
The
output
results
revealed
that
highest
trophic
level
was
3.8–4.2,
occupied
by
softshell
turtles
piscivorous/carnivorous
fish.
most
diverse
functional
groups
found
in
island
zones
due
their
heterogeneous
habitats
high
submerged
vegetation
coverage
transition
area
between
fresh
brackish
water).
In
contrast,
web
structure
industrial
zone
destroyed
pollution
sewage
discharge)
habitat
degradation.
increase
exotic
species
decrease
native
top
predators
two
factors
result
low
efficiency
transmission.
series
Lindeman
transfer
mixed
predator–prey
impacts),
structural
keystoneness,
omnivory,
Finn's
path
length),
theoretical
connectance
ascendency)
indices
health
maturity
sections
can
be
ranked
as
>
agricultural
urban
factory
zones.
chains
led
(
Pelodiscus
sinensis
),
piscivores
Elopichthys
bambusa
molluscivores
Mylopharyngodon
piceus
herbivores
Ctenopharyngodon
idelus
)
could
used
indicate
functioning
Our
suggest
ecological
should
focus
more
efforts
on
protecting
original
with
feeding/spawning
grounds),
monitoring
bioindicators
keystone
impacts
web,
evaluating
play
roles
upward
