EarthArXiv (California Digital Library),
Год журнала:
2023,
Номер
unknown
Опубликована: Окт. 17, 2023
Macroalgae
offshore
cultivation
and
sinking
is
considered
a
potentially
practical
approach
for
ocean-based
carbon
dioxide
removal.
However,
several
considerations
need
to
be
resolved
assess
the
effectiveness
sustainability
of
this
approach.
Currently,
studies
focus
on
area
required
climate-relevant
sequestration
through
macroalgae
without
considering
realistic,
global
spatial
limitations.
This
study
uses
spatially-explicit
suitability
assessment
model
optimised
open-ocean
afforestation
site
designation.
By
applying
specific
maritime,
ecological
industrial
constraints,
two
maps
are
produced:
a)
suitable
areas
sinking,
b)
only
(for
purposes).
These
data
provide
more
realistic
quantifying
ocean
surface
(including
corresponding
depths)
within
spatially
sustainable
framework.
The
resulting
estimate
respective
EEZs
world
countries.
A
total
calculated
at
10.8M
km2,
whereas
sinking-only
account
32.8M
km2
ocean.
implications
patterns
national
levels
discussed.
We
suggest
that
concept
‘grow
nearshore,
sink
offshore’
should
explored
as
an
alternative
cultivation.
Ecosystem Health and Sustainability,
Год журнала:
2024,
Номер
10
Опубликована: Янв. 1, 2024
How
would
the
biodiversity
of
macroalgae
modify
carbon
(C)
and
nitrogen
(N)
stocks
within
a
blue
habitat?
We
addressed
this
knowledge
gap
by
quantifying
biomass
macroalgal
origins
across
seascape
seagrass
meadow.
Such
information
is
warranted
due
to
paucity
data
on
deposits
that
function
as
allochthonous
inputs
into
an
ecosystem’s
pool
organic
matter.
Macroalgae
were
collected
from
Merambong
shoal
(Johor,
Malaysia)
in
December
2020
February
2021.
C
N
analyses
performed
matter,
measurements
upscaled
represent
estimates.
Stocks
origin
meadow
estimated
at
10.71
±
1.3
Mg
0.75
0.11
N.
The
was
heterogeneous,
which
similarly
reflected
taxa-specific
variability
up
44.7%
4.9%
highest
cumulative
contributed
members
Ulvaceae
for
Corallinaceae
Lithophyllaceae
among
calcifying
species.
morphology
habit
35
species
found
provided
indicators
their
autochthonous
versus
nature
based
benthic
or
drifting
tendencies.
Predictors
factored
indices
not
evident,
although
Evenness
index
partially
explained
it
spatial
level.
model
still
able
pinpoint
clusters
hotspots
meadow,
allowing
management
measures
protection
reserves
while
mitigating
release
excess
Green and Low-Carbon Economy,
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 12, 2023
The
imperative
to
replace
fossil
fuels
with
renewable
fuels,
such
as
marine
ecosystem-derived
fuel
and
food,
has
spurred
the
development
of
a
blue
carbon
economic
model.
Seaweed
emerges
pivotal
element
in
this
framework,
demonstrating
potential
substantial
sink.
serves
multiple
purposes,
encompassing
climate
change
adaptation
mitigation
contributing
advancing
bioeconomy
by
reducing
dependence
on
fuels.
also
holds
promise
source
human
cattle
feed,
biofuels,
feedstocks,
other
versatile
applications.
Numerous
contemporary
scientific
publications,
reputable
organizations,
business
resources
offer
illuminating
insights
fresh
perspectives
how
seaweed
can
effectively
contribute
growing
economy,
providing
innovative
tools
for
combating
long-term
change.
This
comprehensive
review
delves
into
multifaceted
seaweed,
concentrating
its
contributions
sequestration,
role
precursor,
carbon-neutralization
capabilities
both
wild
seaweeds
farming.
Moreover,
it
explores
specific
mainly
feed
ruminant
diets.
In
addition,
cultivation
mitigate
global
change,
promote
development,
support
sustainable
livelihoods,
offering
solution
address
pressing
environmental
socioeconomic
challenges.
EarthArXiv (California Digital Library),
Год журнала:
2023,
Номер
unknown
Опубликована: Окт. 17, 2023
Macroalgae
offshore
cultivation
and
sinking
is
considered
a
potentially
practical
approach
for
ocean-based
carbon
dioxide
removal.
However,
several
considerations
need
to
be
resolved
assess
the
effectiveness
sustainability
of
this
approach.
Currently,
studies
focus
on
area
required
climate-relevant
sequestration
through
macroalgae
without
considering
realistic,
global
spatial
limitations.
This
study
uses
spatially-explicit
suitability
assessment
model
optimised
open-ocean
afforestation
site
designation.
By
applying
specific
maritime,
ecological
industrial
constraints,
two
maps
are
produced:
a)
suitable
areas
sinking,
b)
only
(for
purposes).
These
data
provide
more
realistic
quantifying
ocean
surface
(including
corresponding
depths)
within
spatially
sustainable
framework.
The
resulting
estimate
respective
EEZs
world
countries.
A
total
calculated
at
10.8M
km2,
whereas
sinking-only
account
32.8M
km2
ocean.
implications
patterns
national
levels
discussed.
We
suggest
that
concept
‘grow
nearshore,
sink
offshore’
should
explored
as
an
alternative
cultivation.
