Applied Sciences,
Год журнала:
2024,
Номер
14(13), С. 5516 - 5516
Опубликована: Июнь 25, 2024
To
reduce
costs
associated
with
the
detection
and
population
assessment
of
Antarctic
krill
diversify
single
approach,
our
team
designed
deployed
a
drifting
sonar
buoy
for
in
waters
surrounding
Antarctica.
The
experimental
results
indicate
that
fulfills
its
primary
functions
meets
requirements
designated
marine
areas.
initial
experiment
lasted
seven
days,
during
which
collected
157
records
speed
location
data
as
well
82
sea
surface
temperature
acoustic
data,
demonstrating
potential
detection.
also
revealed
shortcomings
design
buoy,
leading
to
proposed
improvements.
paper
further
compares
advantages
disadvantages
traditional
fishing
vessels
offering
unique
benefits
low-cost
deployment,
labor
savings,
broad
monitoring
range,
continuous
real-time
monitoring.
serves
an
excellent
complement
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Окт. 28, 2024
While
foraging,
marine
predators
integrate
information
about
the
environment
often
across
wide-ranging
oceanic
foraging
grounds
and
reflect
these
in
population
parameters.
One
such
species,
southern
right
whale
(Eubalaena
australis;
SRW)
has
shown
alterations
to
behaviour,
declines
body
condition,
reduced
reproductive
rates
after
2009
South
African
population.
As
capital
breeders,
changes
suggest
decreased
availability
of
their
main
prey
at
high-latitudes,
Antarctic
krill
(Euphausia
superba).
This
study
analysed
environmental
factors
affecting
for
this
over
past
40
years,
finding
a
notable
southward
contraction
sea
ice,
15–30%
decline
ice
concentration,
more
than
two-fold
increase
primary
production
metrics
2008.
These
conditions
are
less
supportive
recruitment
known
SRW
grounds.
Additionally,
marginal
zone,
concentration
two
were
determined
be
either
regionally
significant
or
marginally
predictors
calving
interval
length
when
using
linear
model.
Findings
highlight
vulnerability
recovering
baleen
populations
climate
change
show
how
breeders
serve
as
sentinels
ecosystem
regions
that
difficult
costly
study.
ICES Journal of Marine Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 7, 2024
Abstract
Antarctica
and
the
Southern
Ocean
(A&SO)
has
a
unique
environment
that
plays
an
important
role
in
Earth’s
life-support
systems.
It
no
indigenous
human
population
but
hosts
around
5000
researchers
is
visited
by
more
than
100
000
tourists
per
year.
In
this
paper,
we
describe
biophysical
processes
create
region’s
ecosystem
services,
outlining
their
related
governance
systems
within
Antarctic
Treaty
System
(ATS),
show
global
distribution
of
service
beneficiaries.
These
services
clearly
support
populations
across
world
are
endangered
anthropogenic
activities,
which
current
place-based
ATS
not
empowered
to
control.
We
discuss
whether
it
possible
use
insights
from
Elinor
Ostrom’s
work
on
managing
commons,
including
her
eight
core
design
principles
idea
Common
Asset
Trusts,
better
harness
efforts
protect
ALL
services.
note
many
existing
arrangements
associated
with
already
well-aligned
need
be
expanded
globally
produced
A&SO.
Conservation Letters,
Год журнала:
2023,
Номер
17(1)
Опубликована: Ноя. 27, 2023
Abstract
Areas
beyond
national
jurisdiction,
or
the
high
seas,
are
vital
to
life
on
Earth.
However,
conservation
of
these
areas,
for
example,
through
area‐based
management
tools
(ABMTs),
is
challenging,
particularly
when
accounting
global
change.
Using
decision
science,
integrated
population
models,
and
a
Critically
Endangered
seabird
(Kuaka;
Pelecanoides
whenuahouensis)
as
case
study,
we
evaluated
potential
ABMTs
in
seas
under
change
different
governance
structures,
while
uncertainty
imperfect
compliance.
Our
study
highlighted
that
areas
will
likely
cause
declines
∼60%
by
2050.
decisive
action
could
cost‐effectively
address
predicted
declines,
implemented
soon
possible
Biodiversity
Beyond
National
Jurisdiction
Treaty.
We
illustrate
how
science
can
transparently
navigate
complex
seascape
decisions
advocate
its
wider
integration
largest
sections
our
planet,
seas.
Fisheries Management and Ecology,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 5, 2024
Abstract
Krillscan
software
was
developed
to
automatically
process
echosounder
data
and
achieve
an
accelerated
transparent
analysis
of
backscatter
that
allows
calculation
target
biomass.
Herein,
the
fishery
for
Antarctic
krill
(
Euphausia
superba
,
Henceforth
Krill)
used
as
a
case
study
develop
approach.
Implementation
sustainable
management
strategy
is
complicated
by
lack
regularly
updated
abundance
on
spatiotemporal
scales
fishery.
To
increase
biomass
availability,
automatic
processing
swarm
detection
tested
against
traditional
manual
scrutinization
with
LSSS
agreed
only
minor
offsets
in
estimated
nautical
area
scattering
coefficients.
In
addition
transfer,
also
has
graphical
user
interface
supervise
detection.
Echogram
size
can
be
compressed
up
100
times
raw
are
processed
faster
than
generated,
thereby
enabling
near‐real
time
transfer.
Compressed
transmitted
online
allow
fishing
vessels
conduct
surveys
without
having
scientific
personnel
special
expertise
board.
Frontiers in Marine Science,
Год журнала:
2024,
Номер
11
Опубликована: Дек. 20, 2024
We
consider
how
the
ongoing
recovery
of
baleen
whale
populations
requires
improved
understanding
when
managing
largest
commercial
fishery
in
Southern
Ocean,
for
Antarctic
krill.
Baleen
whales
already
represent
one
major
consumers
krill,
and
as
such
compete
with
fishery.
However,
they
are
not
explicitly
included
either
monitoring
programme
or
krill
fisheries
management
approach
Commission
Conservation
Marine
Living
Resources
(CCAMLR).
Individual
at
direct
mortality
risk
from
ship
strike,
entanglement,
by-catch.
In
addition,
sub-lethal
impacts
on
individuals,
albeit
population-level
consequences,
via
decreased
body
condition
reproductive
rates,
may
arise
local
depletion
prey
prey-field
disturbance
that
increases
energetic
costs.
Mitigating
these
risks
whales,
including
those
species
yet
recovered,
fully
integrated
into
procedures.
A
vital
issue
will
be
to
facilitate
blue,
fin
sei
which
still
heavily
depleted
relative
their
pre-whaling
abundance.
Part
answer
this
CCAMLR
resolves
outstanding
issues
related
its
newly
emerging
revised
framework.
Management
is
data-poor,
much
scientific
support
reliant
upon
data
now
decades
old.
The
decision
rules
determining
sustainable
yields
need
careful
re-evaluation,
given
were
negotiated
a
time
rarely
observed,
catches
low
relation
estimated
available
biomass.
marine
ecosystem
spatially
temporally
dynamic,
changing,
assumes
static
system.
An
explicit
commitment
collect
up-to-date
about
help
inform
Precaution
argues
catch
levels
should
increase
until
adequate
effective
management.
Knowledge
status
inevitably
require
close
collaboration
International
Whaling
Commission.
Applied Sciences,
Год журнала:
2024,
Номер
14(13), С. 5516 - 5516
Опубликована: Июнь 25, 2024
To
reduce
costs
associated
with
the
detection
and
population
assessment
of
Antarctic
krill
diversify
single
approach,
our
team
designed
deployed
a
drifting
sonar
buoy
for
in
waters
surrounding
Antarctica.
The
experimental
results
indicate
that
fulfills
its
primary
functions
meets
requirements
designated
marine
areas.
initial
experiment
lasted
seven
days,
during
which
collected
157
records
speed
location
data
as
well
82
sea
surface
temperature
acoustic
data,
demonstrating
potential
detection.
also
revealed
shortcomings
design
buoy,
leading
to
proposed
improvements.
paper
further
compares
advantages
disadvantages
traditional
fishing
vessels
offering
unique
benefits
low-cost
deployment,
labor
savings,
broad
monitoring
range,
continuous
real-time
monitoring.
serves
an
excellent
complement
