Aquatic Conservation Marine and Freshwater Ecosystems,
Journal Year:
2024,
Volume and Issue:
34(12)
Published: Dec. 1, 2024
ABSTRACT
Environmental
racism
may
be
among
the
explanations
for
why
we
are
facing
worst
socioenvironmental
crisis
in
history
of
humanity,
led
by
a
state
climate
emergency
that
could
result
an
ecocidal
genocide
planetary
dimensions.
Unfoldings
environmental
even
reach
towards
nature
when
it
is
considered
subject
rights.
Among
marine
ecosystems
less
these
discussions
rhodolith
beds—reef
habitats
red
coralline
algae,
also
called
maerl
beds.
When
dealing
with
feasibility
oil
exploration
Amazon
mouth
region,
area
dominated
extensive
beds,
Brazilian
Association
Petroleum
Geologists
broadcast
live
geologist
quoted
as
saying
(transcript
follows)
‘…
what
there
(at
Amazon)
algae
rhodoliths,
which
common,
anywhere
Brazil,
and
things,
errrrr
(with
hand
gestures
facial
expression
negative
or
pejorative
sense),
ugly
like
that,
they're
not
nice
at
all,
(…)
reefs
dead
reefs,
dead’.
As
result,
now,
region
real
possibility
exploitation.
This
opinion
limited
aesthetical
perspective
important
demands
urgent
public
recognition.
Policies
foster
bed
conservation
needs,
explaining
their
wealth
valuable
contributions
to
society,
must
introduced
formal
education,
dialoguing
children,
young
people
adults.
Multilateral
United
Nation
forums,
during
Ocean
Decade,
can
provide
ways
speed
up
this
process,
combating
different
forms
speciesism,
buying
some
time
creating
opportunities
establish
natural
world
heritage.
Biological reviews/Biological reviews of the Cambridge Philosophical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 19, 2024
ABSTRACT
Rhodolith
beds
are
diverse
and
globally
distributed
habitats.
Nonetheless,
the
role
of
rhodoliths
in
structuring
associated
species
community
through
a
hierarchy
positive
interactions
is
yet
to
be
recognised.
In
this
review,
we
provide
evidence
that
can
function
as
foundation
multi‐level
facilitation
cascades
and,
hence,
fundamental
for
persistence
hierarchically
structured
communities
within
coastal
oceans.
Rhodoliths
generate
by
buffering
physical
stress,
reducing
consumer
pressure
enhancing
resource
availability.
Due
large
variations
their
shape,
size
density,
single
rhodolith
bed
support
multiple
taxonomically
distant
architecturally
distinct
habitat‐forming
species,
such
primary
producers,
sponges
or
bivalves,
thus
encompassing
broad
range
functional
traits
providing
wealth
secondary
microhabitat
food
resources.
addition,
often
mobile,
redistribute
potentially
expanding
distribution
with
short‐distance
dispersal
abilities.
Key
knowledge
gaps
have
identified
include:
experimental
assessment
basal
facilitators;
length
temporal
stability
cascades;
across
environmental
gradients;
climate
refugia.
Addressing
these
research
priorities
will
allow
development
evidence‐based
policy
decisions
elevate
marine
conservation
strategies.
Biology Letters,
Journal Year:
2024,
Volume and Issue:
20(6)
Published: June 1, 2024
Red
coralline
algae
create
abundant,
spatially
vast,
reef
ecosystems
throughout
our
coastal
oceans
with
significant
ecosystem
service
provision,
but
understanding
of
their
basic
physiology
is
lacking.
In
particular,
the
balance
and
linkages
between
carbon-producing
carbon-sequestering
processes
remain
poorly
constrained,
implications
for
role
in
carbon
sequestration
storage.
Using
dual
radioisotope
tracing,
we
provide
evidence
coupling
photosynthesis
(which
requires
CO
2
)
calcification
releases
red
alga
Boreolithothamnion
soriferum
(previously
Lithothamnion
)—a
marine
engineer
widely
distributed
across
Atlantic
mid-high
latitudes.
Of
sequestered
HCO
3
−
,
38
±
22%
was
deposited
as
carbonate
skeleton
while
39
14%
incorporated
into
organic
matter
via
photosynthesis.
Only
2%
transformed
almost
40%
that
internally
recycled
photosynthetic
substrate,
reducing
net
release
to
23
3%
total
uptake.
The
rate
strongly
dependent
on
substrate
production,
supporting
presence
photosynthetically
enhanced
calcification.
efficient
carbon-recycling
reported
here
suggests
calcifying
may
not
contribute
much
currently
assumed,
a
reassessment
blue
accounting.
