Ecological Management & Restoration,
Год журнала:
2023,
Номер
unknown
Опубликована: Май 1, 2023
Summary
The
health
and
diversity
of
coral
reefs
are
critically
important
to
the
stability
value
marine
tourism
industry.
Declines
in
reef
through
climate
change
impacts
cyclones,
associated
media
coverage,
have
impacted
visitation.
In
January
2018,
a
major
Australian
Government
policy
included
Reef
Restoration
Adaptation
Program
investigate
best
science
technology
options
for
helping
Great
Barrier
recover
adapt
changing
environment.
We
report
on
trial
two
intervention
methods,
mineral
accretion
gardening,
improve
hard
recovery
at
popular
site
Reef.
installed
six
artificial
substrates
onto
which
an
equal
number
fragments
seven
species
were
transplanted
over
course
years.
During
this
time,
three
treatments
connected
low‐voltage
power
source
encourage
enhance
growth.
Electrolysis
resulted
substantial
steel
substrate,
however,
had
no
positive
effect
survival
or
growth
colonies.
After
13
months,
second
round
was
undertaken,
electrolysis
discontinued.
Over
four‐year
period,
mean
live
cover
increased
significantly
both
treatment
locations,
from
1.7%
0%
80.8%
75.8%,
respectively.
Control
locations
insignificantly
5%
14.2%.
proved
technically
challenging
did
not
support
corals,
providing
evidence
use
purpose.
may,
applications
creation
new,
solid
initial
rubble
stabilisation
efforts.
These
results
demonstrate
effective
conjunction
with
gardening
techniques
degraded
sites.
Science,
Год журнала:
2023,
Номер
381(6658), С. 622 - 631
Опубликована: Авг. 10, 2023
Australia’s
biota
is
species
rich,
with
high
rates
of
endemism.
This
natural
legacy
has
rapidly
diminished
since
European
colonization.
The
impacts
invasive
species,
habitat
loss,
altered
fire
regimes,
and
changed
water
flows
are
now
compounded
by
climate
change,
particularly
through
extreme
drought,
heat,
wildfire,
flooding.
Extinction
rates,
already
far
exceeding
the
global
average
for
mammals,
predicted
to
escalate
across
all
taxa,
ecosystems
collapsing.
These
losses
symptomatic
shortcomings
in
resourcing,
law,
policy,
management.
Informed
examples
advances
conservation
practice
from
control,
Indigenous
land
management,
citizen
science,
we
describe
interventions
needed
enhance
future
resilience.
Many
characteristics
Australian
biodiversity
loss
globally
relevant,
recovery
requiring
society
reframe
its
relationship
environment.
Coral Reefs,
Год журнала:
2024,
Номер
43(3), С. 627 - 640
Опубликована: Апрель 20, 2024
Abstract
Coral
reef
ecosystems
are
declining
and
may
not
recover
under
future
climate
scenarios
without
intervention.
Seeding
reefs
with
corals
bred
in
aquaculture
is
a
promising
restoration
intervention;
however,
early
coral
recruits
(spat)
vulnerable
to
overgrowth
by
benthic
algae
maximizing
their
survival
essential
for
the
feasibility
of
large-scale
breeding
operations.
This
study
investigated
optimal
light
quality
intensity
spat
growth
presence
algal
communities
typically
used
induce
larval
settlement,
but
which
might
also
outcompete
reduce
during
grow-out
period.
Spat
were
exposed
two
spectra
(blue
full
spectrum)
at
four
intensities
(5–160
µmol
m
−2
s
−1
)
over
12-week
post-settlement.
Survival
was
reduced
highest
nearly
40%
compared
lowest
intensity.
Light
spectrum
only
affected
60
—where
higher
blue
light.
treatments
did
affect
final
size
33%
smaller
weeks
6
8
due
crustose
coralline
(CCA),
most
abundant
these
conditions.
Low
intensity,
on
other
hand,
favored
green
brown
algae,
potentially
respective
physiologies
or
less
competition
from
algae.
These
results
indicate
that
low
presents
several
advantages
maintaining
aquaculture,
including
significantly
affecting
growth,
as
well
minimizing
husbandry
operating
expenses.
Journal of Marine Science and Engineering,
Год журнала:
2023,
Номер
11(10), С. 1997 - 1997
Опубликована: Окт. 17, 2023
The
shape
of
the
coast
and
processes
that
mold
it
change
together
as
a
complex
system.
There
is
constant
feedback
among
multiple
components
system,
when
climate
changes,
all
facets
system
change.
Abrupt
shifts
to
different
states
can
also
take
place
certain
tipping
points
are
crossed.
coupling
rapid
warming
in
Arctic
with
melting
sea
ice
one
example
positive
feedback.
Climate
particularly
rising
temperatures,
causing
an
increasing
frequency
tropical
storms
“compound
events”
such
storm
surges
combined
torrential
rains.
These
events
superimposed
on
progressive
rises
relative
level
anticipated
push
many
coastal
morphodynamic
systems
beyond
which
return
preexisting
conditions
unlikely.
Complex
modeling
results
long-term
sets
observations
from
diverse
cases
help
anticipate
future
threats.
Innovative
engineering
solutions
needed
adapt
changes
landscapes
environmental
risks.
New
understandings
cascading
climate-change-related
physical,
ecological,
socioeconomic
effects,
multi-faceted
continually
contributing
imperative
search
for
resilience.
Recent
contributions,
summarized
here,
based
theory,
observations,
numerically
modeled
results,
regional
case
studies,
global
projections.
New Phytologist,
Год журнала:
2024,
Номер
243(6), С. 2130 - 2145
Опубликована: Июль 24, 2024
Coral
thermal
bleaching
resilience
can
be
improved
by
enhancing
photosymbiont
tolerance
via
experimental
evolution.
While
successful
for
some
strains,
selection
under
stable
temperatures
was
ineffective
at
increasing
the
threshold
of
an
already
thermo-tolerant
(Durusdinium
trenchii).
Corals
from
environments
with
fluctuating
tend
to
have
comparatively
high
heat
tolerance.
Therefore,
we
investigated
whether
exposure
temperature
oscillations
raise
upper
limit
D.
trenchii.
We
exposed
a
trenchii
strain
and
profiles,
which
varied
in
oscillation
frequency.
After
2.1
yr
(54-73
generations),
characterised
adaptive
responses
various
evolution
treatments
constructing
performance
curves
growth
21
31°C
heat-evolved
wild-type
lineages.
Additionally,
accumulation
extracellular
reactive
oxygen
species,
photophysiology,
photosynthesis
respiration
rates
were
assessed
temperatures.
Of
profiles
investigated,
most
frequent
(diurnal)
induced
greatest
widening
trenchii's
niche.
Continuous
elevated
only
increase
optimum
degree
generalism.
Our
findings
demonstrate
how
differing
levels
homogeneity
during
drive
unique
coral
photosymbiont.
