European Native Oyster Reef Ecosystems Are Universally Collapsed
Conservation Letters,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 4, 2024
ABSTRACT
Oyster
reefs
are
often
referred
to
as
the
temperate
functional
equivalent
of
coral
reefs.
Yet
evidence
for
this
analogy
was
lacking
European
native
species
Ostrea
edulis
.
Historical
data
provide
a
unique
opportunity
develop
robust
definition
ecosystem
type,
confirm
that
O.
large‐scale
biogenic
reef
builders,
and
assess
its
current
conservation
status.
Today,
occur
scattered
individuals
or,
rarely,
dense
clumps
over
few
m
2
historically,
ecosystems
persisted
at
large
scales
(several
km
),
with
individual
within
present
scale
several
hectares.
Using
IUCN
Red
List
Ecosystems
Framework,
we
conclude
oyster
type
is
collapsed
under
three
five
criteria
(A:
reduction
in
geographic
distribution,
B:
restricted
range,
D:
disruption
biotic
processes
interactions).
Criterion
C
(environmental
degradation)
deficient,
E
(quantitative
risk
analysis)
not
completed
already
deemed
collapsed.
Our
assessment
has
important
implications
policy
action,
highlighting
habitat
definitions
on
which
policies
currently
based
reflect
highly
shifted
baseline,
restoration
efforts
falls
far
short
what
necessary
recovery.
Language: Английский
Combined Effects of Local and Regional Drivers on Oyster Spat Density and Growth in Eastern Australia
Estuaries and Coasts,
Journal Year:
2024,
Volume and Issue:
47(8), P. 2406 - 2422
Published: Aug. 13, 2024
Abstract
Up
to
85%
of
shellfish
reefs
have
been
lost
worldwide,
resulting
in
declining
ecosystem
services,
and
increasing
restoration
demand.
However,
more
information
regarding
the
conditions
which
maximise
oyster
settlement
growth
is
required
optimise
restoration.
We
deployed
tiles
at
21
intertidal
sites
throughout
Moreton
Bay,
Australia;
a
region
where
>
96%
rock
are
demand
for
high.
quantified
effects
variables
describing
spatial
(from
GIS),
local
habitat
(using
quadrats
water
quality
measures),
predator
underwater
videography)
characteristics
on
density
size
tiles.
Oyster
was
highest
with
intermediate
abundance
temperature,
nearby
invertebrate
cover,
low
high
values
turbidity
algae
cover.
Conversely,
density,
higher
fish
species
richness
turbidity,
lowest
temperatures.
Together,
this
showed
that
optimal
requires
22
23
°C
average
temperatures,
between
10
15
predators,
either
(<
2
NTU)
or
(>
6
levels.
Notably,
we
observed
multiple
peaks
several
variables,
suggesting
potential
presence
cryptic
found
oysters
shared
preferred
environmental
polychaetes,
coralline
algae,
tunicates,
were
prevalent
abundant
lower
turf
barnacle,
mussel
Identifying
influencing
population
distribution,
settlement,
can
guide
selection
approach
sites.
Language: Английский
Why bringing back oyster reefs could protect coasts from climate change
Alix Soliman
No information about this author
Nature,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 25, 2024
Language: Английский
Continental-scale shellfish reef restoration in Australia
npj Ocean Sustainability,
Journal Year:
2024,
Volume and Issue:
3(1)
Published: Dec. 19, 2024
Shellfish
reef
ecosystems
in
Australia
have
been
greatly
depleted.
Building
on
earlier
trials,
a
continent-scale
restoration
initiative
was
underway
by
2019
to
restore
30%
of
their
former
distribution.
Integral
elements
building
and
progressing
this
ecoscape-scale
program
are
outlined
challenges
discussed.
Documenting
pathways
large-scale
informs
global
commitments
see
degraded
under
effective
2030.
Language: Английский