Global Ecology and Biogeography,
Journal Year:
2024,
Volume and Issue:
33(8)
Published: May 18, 2024
Abstract
Aim
Genetic
diversity
of
marine
forests
results
from
complex
interactions
eco‐evolutionary
processes.
Among
them,
oceanographic
connectivity
driven
by
dispersal
through
water
transport
is
hypothesized
to
play
a
pivotal
role,
yet
its
relative
contribution
has
not
been
addressed
at
the
global
scale.
Here,
we
test
how
present‐day
correlated
with
distribution
genetic
across
ocean.
Location
Global.
Time
period
Contemporary.
Major
taxa
studied
Marine
brown
macroalgae
(order:
Fucales,
Ishigeales,
Laminariales
and
Tilopteridales).
Methods
Through
literature
review,
compiled
comprehensive
dataset
differentiation,
encompassing
699
populations
30
species.
A
biophysical
model
coupled
network
analyses
estimated
multigenerational
centrality
forest
distribution.
This
approach
integrated
propagule
dispersive
capacity
long‐distance
events.
Linear
mixed
models
tested
site‐specific
processes,
in
explaining
differentiation.
Results
We
show
that
spatiality‐dependent
as
described
our
models,
are
prominent
drivers
differentiation
(significant
91.43%
cases
an
average
R
2
0.50
±
0.07).
Specifically,
reveal
18.7%
variance
explicitly
induced
predicted
contemporary
centrality.
Moreover,
demonstrate
key
connecting
species
distributed
large
masses
continents.
Main
conclusions
Our
findings
highlight
role
shaping
extant
on
scale,
significant
implications
for
biogeography
evolution.
understanding
can
pave
way
future
research
aimed
guiding
conservation
efforts,
including
designation
well‐connected
protected
areas,
which
particularly
relevant
sessile
ecosystems
structuring
such
macroalgae.
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: Sept. 1, 2022
Abstract
The
subtropical
oceanic
gyre
in
the
North
Pacific
Ocean
is
currently
covered
with
tens
of
thousands
tonnes
floating
plastic
debris,
dispersed
over
millions
square
kilometres.
A
large
fraction
composed
fishing
nets
and
ropes
while
rest
mostly
hard
objects
fragments,
sometimes
carrying
evidence
on
their
origin.
In
2019,
an
oceanographic
mission
conducted
area,
retrieved
6000
debris
items
>
5
cm.
was
later
sorted,
counted,
weighed,
analysed
for
origin
age.
Our
results,
complemented
numerical
model
simulations
findings
from
a
previous
mission,
revealed
that
majority
material
stems
activities.
While
recent
assessments
inputs
into
ocean
point
to
coastal
developing
economies
rivers
as
major
contributors
pollution,
here
we
show
most
plastics
can
be
traced
back
five
industrialised
nations,
highlighting
important
role
industry
plays
solution
this
global
issue.
Biomolecules,
Journal Year:
2022,
Volume and Issue:
12(6), P. 798 - 798
Published: June 7, 2022
Plastics
are
a
group
of
synthetic
materials
made
organic
polymers
and
some
additives
with
special
characteristics.
have
become
part
our
daily
life
due
to
their
many
applications
uses.
However,
inappropriately
managed
plastic
waste
has
raised
concern
regarding
ecotoxicological
human
health
risks
in
the
long
term.
Due
non-biodegradable
nature
plastics,
may
take
several
thousands
years
partially
degrade
natural
environments.
Plastic
fragments/particles
can
be
very
minute
size
mistaken
easily
for
prey
or
food
by
aquatic
organisms
(e.g.,
invertebrates,
fishes).
The
surface
properties
particles,
including
large
area,
functional
groups,
topography,
point
zero
charge,
influence
sorption
various
contaminants,
heavy
metals,
oil
spills,
PAHs,
PCBs
DDT.
Despite
fact
that
number
studies
on
biological
effects
particles
biota
humans
been
increasing
recent
years,
mixtures
plastics
other
chemical
contaminants
environment
still
limited.
This
review
aims
gather
information
about
main
characteristics
allow
different
types
adsorb
surfaces,
consequences
this
adsorption,
interactions
biota.
Additionally,
missing
links
potential
solutions
presented
boost
more
research
topic
achieve
holistic
view
micro-
nanoplastics
systems
It
is
urgent
implement
measures
deal
pollution
include
improving
management,
monitoring
key
hotspots,
developing
assessment
techniques,
using
alternative
products,
determining
concentrations
freshwater
marine
food-species
consumed
humans,
applying
clean-up
remediation
strategies,
biodegradation
strategies.
The Science of The Total Environment,
Journal Year:
2022,
Volume and Issue:
832, P. 154966 - 154966
Published: March 31, 2022
There
is
increasing
use
worldwide
of
electronic
decision-support
tools
to
identify
potentially
invasive
non-native
species
so
as
inform
policy
and
management
decisions
aimed
at
preventing
or
mitigating
the
environmental
socio-economic
impacts
biological
invasions.
This
study
reviews
analytical
approaches
used
calibrate
scores
generated
by
Weed
Risk
Assessment
subsequent
adaptations
thereof
provides
a
protocol
for:
(i)
identification
assessor(s)
who
will
carry
out
screenings;
(ii)
definition
risk
assessment
area;
(iii)
criteria
for
selection
screening;
(iv)
priori
categorisation
into
non-invasive
necessary
compute
thresholds
which
distinguish
between
high-risk
medium-risk
species.
approach
represents
an
evidence-based
statistically
robust
means
with
decision-makers
stakeholders
about
expected
serve
general
reference
forthcoming
screening
applications
Assessment-type
toolkits.
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
907, P. 167993 - 167993
Published: Oct. 21, 2023
Low-density
polyethylene
(LDPE),
which
accounts
for
20%
of
the
global
plastic
production,
is
discharged
in
great
quantities
into
ocean,
threatening
marine
life
and
ecosystems.
Marine
microorganisms
have
previously
been
reported
to
degrade
LDPE
plastics;
however,
exploration
strains
enzymes
that
still
limited.
Here,
an
LDPE-degrading
bacterium
was
isolated
from
seawater
Changjiang
Estuary,
China
identified
as
Rhodococcus
sp.
C-2,
relative
abundance
dramatically
enhanced
during
PE-degrading
microbial
enrichment.
The
strain
C-2
exhibited
degradation
films,
leading
their
morphological
deterioration,
reduced
hydrophobicity
tensile
strength,
weight
loss,
well
formation
oxygen-containing
functional
groups
short-chain
products.
Sixteen
bacterial
potentially
involved
were
screened
using
genomic,
transcriptomic,
product
analyses.
Thereinto,
glutathione
peroxidase
GPx
with
exposed
active
sites
catalyzed
depolymerization
cooperation
its
dissociated
superoxide
anion
radicals.
Furthermore,
model
involving
multiple
proposed.
present
study
identifies
a
novel
enzyme
(PEase)
bioremediation
promotes
understanding
degradation.
npj Biofilms and Microbiomes,
Journal Year:
2023,
Volume and Issue:
9(1)
Published: Oct. 3, 2023
Abstract
Plastic
pollution
is
an
increasing
global
issue
desperately
requiring
a
solution.
Only
9%
of
all
plastic
waste
has
been
recycled,
and
whilst
recycling
gives
second
life
to
plastic,
it
costly
there
are
limited
downstream
uses
recycled
therefore
alternative
urgently
needed.
Biodegradation
by
microorganisms
developing
field
interest
with
the
potential
for
bioreactors
be
used
alongside
degrade
that
may
otherwise
sent
landfill.
Here,
we
have
identified
two
novel
polyethylene
terephthalate
(PET)
degrading
enzymes
through
genomic
mining
characterised
their
activity,
including
ability
PET.
One
main
roadblocks
facing
development
microbial
as
biodegradation
solution,
efficiency
too
low
facilitate
bioremediation
tools.
In
innovative
approach
tackle
this
roadblock,
hypothesised
enhancing
bacteria’s
attach
form
biofilm
on
could
maximise
local
concentration
enzyme
around
target
substrate,
overall
rate
degradation.
We
found
levels,
manipulating
levels
messenger,
Cyclic-di-GMP,
led
increased
polyester
degradation
in
cells
expressing
well
polyester-degrading
enzymes.
This
indicates
modulating
formation
viable
mechanism
fast
track
bacterial
solutions.
Remote Sensing,
Journal Year:
2024,
Volume and Issue:
16(10), P. 1770 - 1770
Published: May 16, 2024
Most
advances
in
the
remote
sensing
of
floating
marine
plastic
litter
have
been
made
using
passive
remote-sensing
techniques
visible
(VIS)
to
short-wave-infrared
(SWIR)
parts
electromagnetic
spectrum
based
on
spectral
absorption
features
surfaces.
In
this
paper,
we
present
developments
new
and
emerging
technologies
such
as
techniques:
fluid
lensing,
multi-angle
polarimetry,
thermal
infrared
(TIS);
active
light
detection
ranging
(LiDAR),
multispectral
imaging
reflectance
(MiDAR),
radio
(RADAR).
Our
review
capabilities
limitations
different
shows
that
each
has
their
own
weaknesses
strengths,
there
is
not
one
single
technique
applies
all
kinds
under
every
condition
aquatic
environment.
Rather,
should
focus
synergy
between
detect
potentially
use
proxies
estimate
its
presence.
Therefore,
addition
further
developing
techniques,
more
research
needed
composition
relationships
proxies.
propose
a
common
vocabulary
help
community
translate
concepts
among
disciplines
techniques.