Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Dec. 16, 2024
Kelps
(Laminariales,
Phaeophyceae)
are
foundation
species
along
Arctic
rocky
shores,
providing
the
basis
for
complex
ecosystems
and
supporting
a
high
secondary
production.
Due
to
ongoing
climate
change
glacial
terrestrial
run-off
currently
accelerating,
drastically
changing
physical
chemical
water
column
parameters,
e.g.,
transparency
photosynthetically
active
radiation
or
dissolved
concentrations
of
(harmful)
elements.
We
investigated
performance
functioning
kelp
holobionts
in
response
gradients,
with
focus
on
effect
altered
element
column.
found
that
Saccharina
latissima
accumulates
harmful
elements
(e.g.,
cadmium,
mercury)
originating
from
coastal
run-off.
As
kelps
at
food
web,
this
might
lead
biomagnification,
potential
consequences
high-latitude
maricultures.
In
contrast,
biosorption
be
advantageous
monitoring
environmental
pollution
potentially
extracting
rare
earth
Further,
we
relative
abundances
several
kelp-associated
microbial
taxa
significantly
responded
increasing
influence,
ecosystem,
nutritional
value
elemental
cycling.
The
responses
changes
imply
cascading
ecological
economic
future
scenarios.
Plants,
Journal Year:
2024,
Volume and Issue:
13(6), P. 829 - 829
Published: March 13, 2024
Algae
and
bacteria
have
co-occurred
coevolved
in
common
habitats
for
hundreds
of
millions
years,
fostering
specific
associations
interactions
such
as
mutualism
or
antagonism.
These
are
shaped
through
exchanges
primary
secondary
metabolites
provided
by
one
the
partners.
Metabolites,
N-sources
vitamins,
can
be
beneficial
to
partner
they
may
assimilated
chemotaxis
towards
producing
these
metabolites.
Other
metabolites,
especially
many
natural
products
synthesized
bacteria,
act
toxins
damage
kill
partner.
For
instance,
green
microalga
Chlamydomonas
reinhardtii
establishes
a
mutualistic
partnership
with
Methylobacterium,
stark
contrast
its
antagonistic
relationship
toxin
Pseudomonas
protegens.
In
other
cases,
coccolithophore
haptophyte
alga
Phaeobacter
bacterium,
same
bacterium
even
subject
both
processes,
depending
on
secreted
bacterial
algal
Some
also
influence
morphology
micronutrients,
is
observed
some
macroalgae.
This
review
focuses
algal-bacterial
micro-
macroalgal
models
from
marine,
freshwater,
terrestrial
environments
summarizes
advances
field.
It
highlights
effects
temperature
it
presently
known.
Annals of Botany,
Journal Year:
2023,
Volume and Issue:
133(1), P. 183 - 212
Published: Dec. 18, 2023
Abstract
Background
The
sugar
kelp
Saccharina
latissima
is
a
Laminariales
species
widely
distributed
in
the
Northern
Hemisphere.
Its
physiology
and
ecology
have
been
studied
since
1960s,
given
its
ecological
relevance
on
western
temperate
coasts.
However,
research
interest
has
rising
recently,
driven
mainly
by
reports
of
negative
impacts
anthropogenically
induced
environmental
change
increased
commercial
cultivating
species,
with
several
industrial
applications
for
resulting
biomass.
Scope
We
used
variety
sources
published
between
2009
to
May
2023
(but
including
some
earlier
literature
where
required),
provide
comprehensive
review
ecology,
physiology,
biochemical
molecular
biology
S.
latissima.
In
so
doing
we
aimed
better
understand
species’
response
stressors
natural
communities,
but
also
inform
sustainable
cultivation
species.
Conclusion
Due
wide
distribution,
developed
physiological
mechanisms
adjust
changes,
adjustments
photosynthetic
parameters,
modulation
osmolytes
antioxidants,
reprogramming
gene
expression
epigenetic
modifications,
among
others
summarized
this
review.
This
particularly
important
because
massive
changes
abundance
distribution
already
observed.
Namely,
presence
significantly
decreased
at
rear
edges
both
sides
Atlantic,
polar
regions.
These
were
caused
climate
will
therefore
be
increasingly
evident
future.
Recent
developments
genomics,
transcriptomics
epigenomics
clarified
existence
genetic
differentiation
along
distributional
range
implications
fitness
locations.
complex
biotic
abiotic
interactions
unraveled
here
demonstrated
cascading
effects
disappearance
forest
can
marine
ecosystem.
show
how
an
excellent
model
study
acclimation
adaptation
variability
predict
future
persistence
under
change.
Ecology and Evolution,
Journal Year:
2024,
Volume and Issue:
14(6)
Published: June 1, 2024
Abstract
The
Arctic
archipelago
of
Svalbard
is
a
hotspot
global
warming
and
many
fjords
experience
continuous
increase
in
seawater
temperature
glacial
melt
while
sea‐ice
cover
declines.
In
1996/1998,
2012–2014,
2021
macroalgal
biomass
species
diversity
were
quantified
at
the
study
site
Hansneset,
Kongsfjorden
(W‐Spitsbergen)
order
to
identify
potential
changes
over
time.
2021,
we
repeated
earlier
studies
by
stratified
random
sampling
(1
×
1
m
2
,
n
=
3)
along
sublittoral
depth
transect
(0,
2.5,
5,
10,
15
m)
investigated
lower
limits
dominant
brown
algae
between
3
19
m.
maximum
fresh
weight
(FW)
all
seaweeds
was
11.5
kg
−2
2.5
99.9%
constituted
kelp.
Although
distribution
not
significantly
different
compared
2012/2013,
digitate
kelp
community
(
Laminaria
digitata
/
Hedophyllum
nigripes
)
had
transformed
into
an
Alaria
esculenta
‐dominated
forest.
Consequently,
pronounced
shift
forest
structure
occurred
time
as
demonstrate
that
allocation
thallus
parts
species‐specific.
Over
past
decade,
demography
changed
balanced
age
kelps
(juveniles
plus
older
individuals)
only
apparent
addition,
abundances
declined
noticeably
last
25
years
red
algal
flora
abundance
remained
unchanged
depth.
We
propose
major
factor
driving
observed
are
alterations
underwater
light
climate,
situ
data
showed
increasing
turbidity
decreasing
irradiance
since
2012
2017,
respectively.
As
consequence,
interplay
retreat
levels
caused
coastal
darkening
gain
with
temperatures
will
possibly
intensify
future
unforeseen
consequences
for
melting
coasts
fjord
ecosystem
services.
Annals of Botany,
Journal Year:
2023,
Volume and Issue:
133(1), P. 1 - 16
Published: Nov. 23, 2023
Abstract
Background
Marine
macroalgae
(‘seaweeds’)
are
a
diverse
and
globally
distributed
group
of
photosynthetic
organisms
that
together
generate
considerable
primary
productivity,
provide
an
array
different
habitats
for
other
organisms,
contribute
many
important
ecosystem
functions
services.
As
result
continued
anthropogenic
stress
on
marine
systems,
macroalgal
species
face
uncertain
future,
risking
their
vital
contribution
to
global
productivity
service
provision.
Scope
After
briefly
considering
the
remarkable
taxonomy
ecological
distribution
macroalgae,
we
review
how
threats
posed
by
combination
anthropogenically
induced
stressors
affect
seaweed
communities.
From
there
highlight
five
critical
avenues
further
research
explore
(long-term
monitoring,
use
functional
traits,
focus
early
ontogeny,
biotic
interactions
impact
litter
coastal
vegetation).
Conclusions
Although
parallels
with
terrestrial
vascular
plant
responses
stressors,
note
impacts
some
(e.g.
habitat
loss)
much
less
keenly
felt
in
oceans
than
land.
Nevertheless,
common
communities,
climate
change
will
inevitably
be
most
pernicious
threat
future
persistence
species,
communities
While
understanding
simultaneous
environmental
is
complex
exercise,
our
attempt
synergies
priorities
elucidate
trends
mechanisms
response,
may
yet
offer
small
this
goal.
Earth stewardship.,
Journal Year:
2025,
Volume and Issue:
2(2)
Published: March 17, 2025
Abstract
In
the
face
of
intensifying
climate
change
and
growing
shoreline
industrialization,
coastal
socio‐ecological
systems
can
benefit
from
resource
development
strategies
that
provide
important
environmental
benefits.
One
such
strategy
(i.e.,
nature‐based
solution)
involves
restorative
aquaculture,
which
improves
health
through
continual
delivery
ecological
services.
Through
seaweed
cultivation,
humans
directly
small‐scale
output
improved
conditions
like
water
quality.
Aquaculture
also
play
a
large
role
in
cultural
benefits
strengthen
place‐based
connections
access
to
significant
areas.
Small‐scale
aquaculture
have
received
little
academic
attention
despite
crucial
they
sustainable
cultivation.
this
piece,
we
explain
how
Shinnecock
Kelp
Farmers,
an
Indigenous
women‐led
system,
long
been
leaders
field.
Situated
Northeastern
United
States,
Farmers
culture
develop
native
seaweed,
namely,
sugar
kelp.
As
more
States
programs
conservation
agencies
explore
satisfy
goals,
should
work
with
communities
decision‐making
seats.
Frontiers in Genetics,
Journal Year:
2025,
Volume and Issue:
16
Published: May 14, 2025
Increasing
the
genomic
resources
of
emerging
aquaculture
crop
targets
can
expedite
breeding
processes
as
seen
in
molecular
advances
agriculture.
High
quality
annotated
reference
genomes
are
essential
to
implement
this
relatively
new
scheme
and
benefit
research
areas
such
population
genetics,
gene
discovery,
mechanics
by
providing
a
tool
for
standard
comparison.
The
brown
macroalga
Saccharina
latissima
(sugar
kelp)
is
an
ecologically
economically
important
kelp
that
found
both
northern
Pacific
Atlantic
Oceans.
Cultivation
human
consumption
has
increased
significantly
century
North
America
Europe,
its
single
blade
morphology
allows
dense
seeding
practices
used
cultivation
Asian
sister
species,
japonica.
While
potential
food
crop,
insufficient
information
from
genetic
limited
sugar
aquaculture.
We
present
scaffolded
nuclear
organelle
female
gametophyte
collected
Black
Ledge,
Groton,
Connecticut.
This
genome
compares
well
with
other
published
contains
218
scaffolds
scaffold
N50
1.35
Mb,
GC
content
49.84%,
25,012
predicted
genes.
also
validated
comparing
synteny
completeness
genomes.
Our
team
successfully
performed
initial
selection
trials
using
draft
version
genome.
expands
toolkit
will
be
fundamental
resource
future
foundational
science,
breeding,
conservation
efforts.
The Science of The Total Environment,
Journal Year:
2025,
Volume and Issue:
982, P. 179677 - 179677
Published: May 18, 2025
The
role
of
macroalgae
as
natural
sinks
for
carbon
dioxide
(CO2)
has
long
been
recognized,
and
interest
climate
mitigating
solutions
from
seaweed
cultivation
is
quickly
rising.
Erosion
biomass
provides
avenues
sequestration
at
sea,
yet
data
still
lacking
important
European
cultivars,
particularly
combining
particulate
(POC)
dissolved
(DOC)
organic
losses.
In
this
study,
provided
on
uptake,
lamina
growth
erosion
over
two
consecutive
seasons
the
kelp
Saccharina
latissima
(Phaeophyceae)
deployed
in
Autumn
Winter
Hitra,
Norway.
A
short-term
exudation
experiment
was
performed
with
same
2023.
By
April,
typical
harvest
time
food
applications,
average
losses
to
POC
DOC
pools
amounted
15
34
g
C
m-2
yr-1,
respectively,
or
9
%
19
net
primary
production
(C-NPP)
farm.
Combined
reached
101-247
yr-1
(40-47
C-NPP)
by
June.
rates
4.1-7.6
mg
g-1
h-1
after
4
h
incubation,
reducing
significantly
24
h.
On
average,
29
12
fixed
S.
released
deployments,
before
progression
bryozoan
biofouling.
provide
a
continuous
source
deposition,
burial
further
breakdown
into
RDOC,
crucial
environmental
impact
assessments
accounting
methodologies.
study
valuable
future
research
its
contribution
global
mitigation
efforts.