Fish and Fisheries,
Journal Year:
2023,
Volume and Issue:
24(3), P. 439 - 453
Published: Feb. 27, 2023
Abstract
Climate
change
is
projected
to
affect
the
productivity
of
global
fisheries.
Management
based
on
maximum
sustainable
yield
(MSY)
has
been
effective
at
eliminating
overfishing
in
many
regions.
However,
continuing
use
yield‐maximizing
targets
under
climate‐driven
changes
can
result
higher
anthropogenic
pressure
populations
subject
climate‐related
stress
than
maintaining
status
quo
management
targets.
We
demonstrate
this
effect
using
a
theoretical
example
and
case
studies
from
snow
crab
eastern
Bering
Sea
marine
fisheries
database.
In
these
examples,
conservation
gain
(i.e.
biomass
ocean)
larger
small
harvest
made
through
climate
adaptation
MSY‐based
management.
The
aggregate
increases
as
harmful
impacts
worsen.
Instead
climate‐adaptive
targets,
new
tools
are
needed
balance
food
production
ecosystems
displaying
non‐stationary
productivity.
Frontiers in Ecology and the Environment,
Journal Year:
2021,
Volume and Issue:
20(2), P. 102 - 110
Published: Nov. 15, 2021
Globally,
wild
decapod
crustacean
fisheries
are
growing
faster
than
of
any
other
major
group,
yet
little
attention
has
been
given
to
the
benefits,
costs,
and
risks
this
shift.
We
examined
more
60
years
global
landings
data
evaluate
socioeconomic
ecological
implications
compositional
change
in
fisheries,
propose
that
direct
indirect
anthropogenic
alterations
enhancements
ecosystems
continue
benefit
crustaceans.
Crustaceans
among
most
valuable
seafood,
but
provide
low
nutritional
yields
drive
94%
projected
increase
fishery
carbon
emissions,
due
capture
efficiency.
Unequivocally,
increasing
demand
for
luxury
seafood
comes
with
serious
environmental
also
appears
offer
lucrative
fishing
opportunities.
The
potential
prosperous
carries
unevaluated
risks,
highlighting
need
a
nuanced
perspective
on
trade‐offs.
Addressing
unique
suite
trade‐offs
will
require
substantive
changes
both
science
management.
Global Change Biology,
Journal Year:
2022,
Volume and Issue:
28(21), P. 6239 - 6253
Published: July 13, 2022
Resolving
the
combined
effect
of
climate
warming
and
exploitation
in
a
food
web
context
is
key
for
predicting
future
biomass
production,
size-structure
potential
yields
marine
fishes.
Previous
studies
based
on
mechanistic
size-based
models
have
found
that
bottom-up
processes
are
important
drivers
fisheries
yield
changing
climates.
However,
we
know
less
about
joint
effects
'bottom-up'
physiological
temperature;
how
do
temperature
propagate
from
individual-level
physiology
through
webs
alter
exploited
species
community?
Here,
assess
species-resolved
affected
by
both
these
pathways
exploitation.
We
parameterize
dynamic
size
spectrum
model
inspired
offshore
Baltic
Sea
web,
investigate
individual
growth
rates,
size-structure,
relative
abundances
warming.
The
magnitude
projections
regional
coupled
system
RCA4-NEMO
RCP
8.5
emission
scenario,
evaluate
different
scenarios
dependence
fish
resource
productivity.
When
accounting
temperature-effects
addition
to
basal
productivity,
projected
size-at-age
2050
increases
average
all
species,
mainly
young
fish,
compared
without
In
contrast,
decreases
when
affects
dynamics
only,
decline
largest
fish.
Faster
rates
due
warming,
however,
not
always
translate
larger
yields,
as
lower
carrying
capacities
with
increasing
tend
result
abundance
hence
spawning
stock
biomass.
These
results
suggest
understand
global
structure
communities,
direct
metabolic
indirect
via
resources
must
be
accounted
for.
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.
Fish and Fisheries,
Journal Year:
2019,
Volume and Issue:
21(1), P. 47 - 62
Published: Oct. 24, 2019
Abstract
China
is
the
world's
largest
capture
fisheries
and
aquaculture
producer.
Over
recent
decades,
China's
domestic
marine
catch
composition
has
changed
markedly,
from
large
volumes
of
a
few
high‐valued
food
species
to
multiple,
small,
low‐valued,
species,
significant
proportion
which
primarily
used
as
animal,
especially
fish,
feed.
Despite
growing
volume
economic
importance
feed
catches,
their
composition,
socio‐environmental
impacts
are
all
poorly
understood.
Based
on
nationwide
survey
>800
fishing
vessels,
identification
measurement
>12,000
fish
invertebrate
individuals,
present
study
provides
an
overview
component
catch,
by
volumes,
sizes,
found
it
be
substantial
biologically
unsustainable.
Half
trawler
(3
million
metric
tons,
mmt),
or
35%
total
(4.6
mmt)
in
exclusive
zone,
now
comprised
low‐valued
“feed‐grade
fish”.
The
identified
218
50
crustaceans
five
cephalopods,
these,
102
were
with
89%
individuals
juvenile
size
ranges.
Feed‐grade
mainly
directly,
indirectly,
through
industry
after
reduction
fishmeal
oil.
unparalleled
scale
poor
resource
condition
fisheries,
parallel
severe
overfishing
juveniles,
creates
demand
for
fundamental
changes
fishery
management
practices,
including
effort
ensure
productivity
ecosystem
resilience.
Ecology Letters,
Journal Year:
2018,
Volume and Issue:
21(6), P. 836 - 844
Published: April 3, 2018
Abstract
The
allocation
of
metabolic
energy
to
growth
fundamentally
influences
all
levels
biological
organisation.
Here
we
use
a
first‐principles
theoretical
model
characterise
the
energetics
fish
at
distinct
ontogenetic
stages
and
in
thermal
regimes.
Empirically,
show
that
mass
scaling
rates
follows
rate,
is
somewhat
steeper
earlier
stages.
We
also
demonstrate
cost
growth,
E
m
,
varies
substantially
among
fishes,
it
may
increase
with
temperature,
trophic
level
activity.
Theoretically,
primary
determinant
efficiency
transfer
across
levels,
transferred
more
efficiently
between
if
prey
are
young
sedentary.
Overall,
our
study
demonstrates
importance
characterising
individual
order
understand
constraints
on
structure
food
webs
ecosystems.
Reviews in Fish Biology and Fisheries,
Journal Year:
2019,
Volume and Issue:
29(3), P. 711 - 733
Published: June 11, 2019
Balanced
harvest
has
been
proposed
to
reduce
fishing
impact
on
ecosystems
while
simultaneously
maintaining
or
even
increasing
fishery
yield.
The
concept
attracted
broad
interest,
but
also
received
criticisms.
In
this
paper,
we
examine
the
theory,
modelling
studies,
empirical
evidence,
legal
and
policy
frameworks,
management
implications
of
balanced
harvest.
examination
reveals
unresolved
issues
challenges
from
both
scientific
perspectives.
We
summarize
current
knowledge
address
common
questions
relevant
idea.
Major
conclusions
include:
can
be
expressed
in
several
ways
implemented
multiple
levels,
with
different
approaches
e.g.
métier
based
management;
it
explicitly
bridges
fisheries
conservation
goals
accordance
international
frameworks;
studies
limited
evidence
reveal
that
ecosystem
structure
increase
aggregate
yield;
extent
is
not
purely
a
question,
social
choice;
transition
may
incur
short-term
economic
costs,
long-term,
results
will
vary
across
individual
for
society
overall;
its
application,
adopted
at
strategic
tactical
levels
need
full
implementation,
could
aim
“partially-balanced”
Further
objective
discussions
research
subject
are
needed
move
toward
supporting
practical
approach
fisheries.
