Sustainability,
Journal Year:
2023,
Volume and Issue:
15(8), P. 6583 - 6583
Published: April 13, 2023
To
address
the
issue
of
minimum
mesh
size
regulations
stow
net
fishery
for
croaker
species,
we
tested
and
compared
selectivity
exploitation
pattern
diamond-
square-mesh
codends
with
sizes
35,
45
55
mm
little
yellow
(Larimichthys
polyactis),
silver
(Pennahia
argentata),
flower
(Nibea
albiflora)
in
Yellow
Sea,
China.
Our
results
showed
that
legal
codend
(35
diamond-mesh)
was
inadequate
to
protect
juvenile
species
because
more
than
75%
undersized
individuals
were
retained,
discard
ratios
as
high
approximately
60%.
Irrespective
shape,
increasing
could
significantly
improve
species.
Between
same
size,
had
higher
diamond-mesh
codends.
Based
on
results,
recommended
rational
stocks.
This
study
can
provide
feasibility
insight
enforcement
reform
management
strategies
sustainable
fishing
Chinese
fisheries.
Frontiers in Marine Science,
Journal Year:
2025,
Volume and Issue:
11
Published: Jan. 8, 2025
Introduction
The
sustainable
development
of
marine
fisheries
has
been
a
major
concern,
with
the
carrying
capacity
fishery
resources
becoming
focal
point
research.
Methods
This
study,
utilizing
remote
sensing
data,
capture
catch
and
fishing
effort
data
from
2013
to
2020,
aims
determine
maximum
yield
using
surplus
production
model
provide
comprehensive
assessment
status
potential
China’s
resources.
Results
results
indicate
that
exhibit
significant
regional
variability,
East
China
Sea
contributing
largest
share
maintaining
sustainability,
while
regions
such
as
South
Sea,
Yellow
Bohai
have
exceeded
their
ecological
capacities.
Correlation
analysis
highlights
nutrient
levels
water
quality
(e.g.,
chemical
oxygen
demand)
are
critical
for
resource
stability,
distribution
management
protected
areas
further
influence
capacity.
Discussion
study
contributes
more
effective
policies,
aiming
balance
economic
benefits
health.
By
understanding
these
dynamics,
policymakers
can
better
address
challenges
facing
fisheries.
Animals,
Journal Year:
2024,
Volume and Issue:
14(14), P. 2070 - 2070
Published: July 15, 2024
Global
climate
change
profoundly
impacts
the
East
China
Sea
ecosystem
and
poses
a
major
challenge
to
fishery
management
in
this
region.
In
addition,
closely
related
species
with
low
catches
are
often
not
distinguished
production
relevant
data
commonly
merged
statistics
fishing
logbooks,
making
it
challenging
accurately
predict
their
habitat
distribution
range.
Here,
fisheries-independent
of
squid
Proceedings of the National Academy of Sciences,
Journal Year:
2023,
Volume and Issue:
120(26)
Published: June 20, 2023
Subsidies
are
widely
criticized
in
fisheries
management
for
promoting
global
fishing
capacity
growth
and
overharvesting.
Scientists
worldwide
have
thus
called
a
ban
on
"harmful"
subsidies
that
artificially
increase
profits,
resulting
the
recent
agreement
among
members
of
World
Trade
Organization
to
eliminate
such
subsidies.
The
argument
banning
harmful
relies
assumption
will
be
unprofitable
after
eliminating
subsidies,
incentivizing
some
fishermen
exit
others
refrain
from
entering.
These
arguments
follow
open-access
governance
regimes
where
entry
has
driven
profits
zero.
Yet
many
modern-day
conducted
under
limited-access
limit
maintain
economic
even
without
In
these
settings,
subsidy
removal
reduce
but
perhaps
any
discernable
effect
capacity.
Importantly,
until
now,
there
been
no
empirical
studies
reductions
inform
us
about
their
likely
quantitative
impacts.
this
paper,
we
evaluate
policy
reform
reduced
China.
We
find
China's
accelerated
rate
at
which
retired
vessels,
fleet
capacity,
particularly
older
smaller
vessels.
Notably,
reduction
was
only
partly
responsible
reducing
capacity;
an
vessel
retirement
also
necessary
driver
reduction.
Our
study
demonstrates
efficacy
removing
depends
environment
removals
occur.
Fishes,
Journal Year:
2025,
Volume and Issue:
10(3), P. 112 - 112
Published: March 4, 2025
Long-term
selective
fishing
pressure
often
leads
to
miniaturization,
smaller
size,
and
early
sexual
maturity
in
many
commercial
fish
species.
To
adapt,
these
species
increase
energy
allocations
toward
maturation
reproduction,
which
can
reduce
population
productivity
recruitment.
However,
how
different
pressures
affect
reproductive
investment
allocation
between
growth
reproduction
remains
unclear.
In
this
study,
we
designed
three
size-selective
harvesting
strategies—large,
random,
small
harvests—to
examine
their
effects
on
the
of
marine
medaka
(Oryzias
melastigma).
We
analyzed
changes
length,
weight,
gonad
weight
across
harvest
times.
Results
showed
that
“large
harvest”
group
allocated
more
leading
miniaturization
earlier
maturation,
while
“small
focused
growth,
resulting
larger
at
same
age.
This
study
provides
experimental
evidence
alters
populations,
offering
valuable
insights
for
sustainable
exploitation
fishery
resources.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: April 1, 2025
Catch-based
methods
are
widely
used
in
marine
fisheries
management,
particularly
for
assessing
fish
stock
status
data-limited
fisheries.
However,
their
reliability
remains
controversial,
especially
when
only
catch
data
available.
In
with
inadequate
monitoring,
Catch
Per
Unit
Effort
(CPUE)
often
unavailable,
despite
the
potential
availability
of
total
fishing
effort
records
entire
areas.
Here,
we
evaluate
a
proposed
proxy-CPUE
indicator,
defined
as
ratio
to
metrics,
substitute
CPUE
enhance
catch-based
methods.
Using
chub
mackerel
(Scomber
japonicus)
Yellow
Sea
case
study,
developed
indicators
using
three
types
large-scale
metrics:
Gross
Vessel
Count
(GVC),
Power
(GVP),
and
Target
(TVC).
These
were
incorporated
into
Bayesian
state-space
Schaefer
surplus
production
model
(BSM)
performance
was
compared
catch-only
(CMSY)
across
key
evaluation
criteria,
including
robustness
estimation,
retrospective
analyses,
encountering
observation
errors.
Additionally,
conducted
simulations
assess
impact
dynamic
catchability,
demonstrating
that
remain
robust
even
catchability
varies
over
time.
Results
indicate
substantially
improves
estimates,
by
mitigating
high
errors—reducing
estimate
variations
50%
Both
GVC-based
GVP-based
demonstrated
reliable
analyses.
This
study
provides
practical
scalable
solution
management
facing
similar
constraints.
