Environmental DNA,
Journal Year:
2024,
Volume and Issue:
6(6)
Published: Nov. 1, 2024
ABSTRACT
Environmental
DNA
(eDNA)
offers
an
efficient
approach
to
biodiversity
monitoring
and
biosecurity
surveillance
in
coastal
ecosystems.
Understanding
eDNA
dynamics
tidal
areas
is
critical
for
guiding
sampling
strategy
design
interpreting
molecular
detection
results.
In
a
field
study
conducted
at
Ōpua,
Bay
of
Islands,
Aotearoa,
New
Zealand,
international
marina
with
dynamic
environment,
we
investigated
patterns
across
local
spatial
temporal
gradient.
Hourly
samples
were
collected
from
six
stations
around
the
marina,
artificial
shore
structures
channel,
over
12‐h
cycle.
Detected
eukaryotic
communities
assessed
using
metabarcoding
analysis
small‐subunit
ribosomal
RNA
(18S
rRNA)
mitochondrial
Cytochrome
C
Oxidase
subunit
I
(COI)
genes.
This
core
community
was
screened
marine
nonindigenous
species
(NIS)
online
data
screening
app
(ExPAT).
Community
composition
varied
significantly
based
on
location
time,
most
captured
mid‐tide.
The
NIS
exhibited
inconsistent
some
(e.g.,
amphipod
Monocorophium
acherusicum
)
space
whereas
other
mussel
Arcuatula
senhousia
consistently
detected
behaved
similar
community.
Overall,
species‐specific
may
be
linked
biology
movement
organism.
results
indicated
slightly
higher
within
2
h
low
tide.
For
applications,
users
want
prioritize
near‐shore
during
tide,
while
mid‐tide
provide
more
comprehensive
insights
into
biomonitoring.
Further
studies
multiple
cycles
marinas
guide
standardization
biomonitoring
biosurveillance
strategies
support
their
broader
integration
programs.
Molecular Ecology Resources,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 31, 2025
Molecular
methods
such
as
DNA/eDNA
metabarcoding
have
emerged
useful
tools
to
document
the
biodiversity
of
complex
communities
over
large
spatio-temporal
scales.
We
established
an
international
Marine
Biodiversity
Observation
Network
(ARMS-MBON)
combining
standardised
sampling
using
autonomous
reef
monitoring
structures
(ARMS)
with
for
genetic
marine
hard-bottom
benthic
communities.
Here,
we
present
data
our
first
campaign
comprising
56
ARMS
units
deployed
in
2018-2019
and
retrieved
2018-2020
across
15
observatories
along
coasts
Europe
adjacent
regions.
describe
open-access
set
(image,
metadata)
explore
show
its
potential
ecological
research.
Our
analysis
shows
that
recovered
more
than
60
eukaryotic
phyla
capturing
diversity
up
~5500
amplicon
sequence
variants
~1800
operational
taxonomic
units,
~250
~50
species
per
observatory
cytochrome
c
oxidase
subunit
I
(COI)
18S
rRNA
marker
genes,
respectively.
Further,
detected
threatened,
vulnerable
non-indigenous
often
targeted
biological
monitoring.
while
deployment
duration
does
not
drive
estimates,
effort
sequencing
depth
do.
recommend
should
be
at
least
3-6
months
during
main
growth
season
use
resources
efficiently
possible
post-sequencing
curation
is
applied
enable
statistical
comparison
entities.
suggest
used
programs
long-term
research
encourage
adoption
ARMS-MBON
protocols.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 11, 2025
Abstract
This
document
presents
a
systematic
literature
review
on
the
assessment
of
forest
plant
diversity
using
remote
sensing
techniques.
Forest
plays
crucial
role
in
maintaining
ecosystem
stability
and
providing
essential
services.
However,
human
activities
pose
significant
threats
to
biodiversity,
necessitating
effective
monitoring
conservation
efforts.
biodiversity
provides
evidence-based
data
for
programs
decision-making.
Traditional
methods
have
limitations
terms
cost,
time,
spatial
coverage.
Remote
data,
other
hand,
offers
flexible
cost-effective
approach
monitor
species
diversity,
explore
diversity-productivity
relationships,
identify
hotspots.
paper
highlights
various
approaches
assess
with
focus
The
benefits
drawbacks
are
discussed,
along
use
Earth
Observation
satellite
images,
LiDAR
unmanned
aerial
vehicles
(UAVs)
mapping
vegetation
biodiversity.
case
studies
showcasing
parameters
across
different
ecosystems
sensing.
It
analyzes
temporal
trend
publications,
publishers,
authors
this
field,
analysis
study
regions.
Furthermore,
discusses
challenges
identifies
research
areas
improving
its
accuracy.
Overall,
comprehensive
overview
based
emphasizes
importance
efforts,
advancements
technology,
future
directions
enhance
accuracy
effectiveness
monitoring.
Environmental DNA,
Journal Year:
2025,
Volume and Issue:
7(2)
Published: March 1, 2025
ABSTRACT
Environmental
DNA
(eDNA)
metabarcoding
is
changing
the
way
biodiversity
surveyed
in
many
types
of
ecosystems.
eDNA
surveys
are
now
commonly
performed
and
integrated
into
monitoring
programs
public
databases.
Although
it
widely
recognized
that
records
require
interpretation
light
taxonomy
biogeography,
there
remains
a
range
perceptions
about
how
thoroughly
should
be
evaluated
which
ones
reported.
Here,
we
present
modular
procedure,
available
as
an
R
script,
uses
set
five
steps
to
assess
confidence
species‐level
by
assigning
them
score
from
0
5.
This
procedure
includes
evaluations
known
geographic
distribution
each
taxon,
taxonomic
resolution
marker
used,
regional
completeness
reference
database,
diversification
rate,
map
taxon.
We
tested
on
large‐scale
marine
fish
dataset
(572
samples)
covering
15
ecoregions
worldwide,
poles
tropics,
using
teleo
mitochondrial
12S
ribosomal
gene.
Our
analysis
revealed
broad
variation
average
among
regions,
with
highest
scores
occurring
along
European
Eastern
Atlantic
coasts.
Generalized
linear
models
applied
record
covariates
highlighted
significant
influences
latitude
species
richness
low
(<
2.5).
The
polar
regions
notably
displayed
high
proportions
scores,
probably
due
limited
databases
marker.
conclude
only
(>
2.5)
medium
(2.5)
relatively
low‐confidence
correspond
further
investigation
may
after
inspection
ensure
high‐quality
records.
Fisheries,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 24, 2025
ABSTRACT
Flats
ecosystems
are
dynamic,
shallow,
nearshore
marine
environments
that
interconnected
and
provide
immense
ecological
socio-economic
benefits.
These
habitats
support
a
diversity
of
fish
populations
various
fisheries,
yet
they
increasingly
threatened
by
anthropogenic
stressors,
including
overfishing,
habitat
degradation,
coastal
development,
the
cascading
effects
climate
change.
Effective
management
restoration
essential
but
often
missing
for
flats
ecosystems.
Despite
navigating
landscape
imperfect
knowledge
these
systems,
decisive
action
implementation
protection
is
currently
needed
through
policy
practice.
We
present
comprehensive
set
10
strategic
guiding
principles
necessary
integrating
conservation
flat
include
calls
ecosystem-based
management,
adaptive
strategies
leverage
diverse
partnerships,
scientific
research,
legislative
initiatives,
local
traditional
knowledge.
Drawing
on
successes
in
other
environmental
realms,
we
emphasize
importance
evidence-informed
approaches
to
address
complexities
uncertainties
aim
advance
restoration,
promoting
integrity
strengthening
resilience
important
environments.
Journal of Marine Science and Engineering,
Journal Year:
2025,
Volume and Issue:
13(4), P. 685 - 685
Published: March 28, 2025
To
achieve
the
aims
of
Convention
on
Biological
Diversity’s
2030
Global
Biodiversity
Framework,
management
marine
areas
requires
use
cost-
and
time-
effective
monitoring
biodiversity.
Marine
observation
platforms
are
increasingly
used
for
such
activities.
These
allow
data
to
be
collected
from
a
variety
sensors
simultaneously
in
real-time
situ,
providing
opportunity
both
adapting
where
when
sampling
is
performed
using
multiple
streams
more
comprehensive
information
While
some
recent
activities
following
an
adaptive
approach
(in
which
adapted
ecological
phenomena
as
diel
vertical
migration),
most
still
do
not
data-driven
inform
sampling).
In
this
study,
we
eDNA
metabarcoding
monitor
community
copepods
found
high-latitude
environment
near
Trondheim,
Norway.
We
applied
detect
calanoid
at
seasonally
contrasting
time
points
acoustic
sensor
data.
Acoustic
were
plankton
net
samples
24
h
period,
Calanoid
migrate
through
water
column
throughout
day
avoid
predation.
results
demonstrate
how
complimentary
methods
can
combined
robust
biodiversity
by
confirming
presence
(or
absence)
relevant
taxa.
Toxics,
Journal Year:
2023,
Volume and Issue:
11(11), P. 903 - 903
Published: Nov. 5, 2023
Environmental
pollution
is
a
growing
threat
to
natural
ecosystems
and
one
of
the
world’s
most
pressing
concerns.
The
increasing
worldwide
use
pharmaceuticals
has
elevated
their
status
as
significant
emerging
contaminants.
Pharmaceuticals
enter
aquatic
environments
through
multiple
pathways
related
anthropogenic
activity.
Their
high
consumption,
insufficient
waste
treatment,
incapacity
organisms
completely
metabolize
them
contribute
accumulation
in
environments,
posing
all
life
forms.
Various
analytical
methods
have
been
used
quantify
pharmaceuticals.
Biotechnology
advancements
based
on
next-generation
sequencing
(NGS)
techniques,
like
eDNA
metabarcoding,
enabled
development
new
for
assessing
monitoring
ecotoxicological
effects
metabarcoding
valuable
biomonitoring
tool
pharmaceutical
because
it
(a)
provides
an
efficient
method
assess
predict
status,
(b)
identifies
sources,
(c)
tracks
changes
levels
over
time,
(d)
assesses
ecological
impact
pollution,
(e)
helps
prioritize
cleanup
mitigation
efforts,
(f)
offers
insights
into
diversity
composition
microbial
other
bioindicator
communities.
This
review
highlights
issue
while
emphasizing
importance
using
modern
NGS-based
actions
its
environmental
more
consistently
effectively.
Coral Reefs,
Journal Year:
2024,
Volume and Issue:
43(3), P. 717 - 731
Published: April 28, 2024
Abstract
Metabarcoding
is
revolutionising
the
analysis
of
biodiversity
in
marine
ecosystems,
especially
as
it
provides
a
means
detecting
and
identifying
cryptic
life
stages
field
samples.
The
planktonic
larval
stage
many
species
underpins
abundance
distribution
adult
populations
but
challenging
to
characterise
given
small
size
larvae
diffuse
distributions
pelagic
waters.
Yet,
dynamics
are
key
understanding
phenomena
observed
populations,
such
boom-and-bust
exhibited
by
some
echinoderms.
Rapid
changes
echinoderm
population
density
can
have
significant
effects
on
local
benthic
ecosystems.
For
example,
outbreaks
crown-of-thorns
sea
star
(CoTS)
Great
Barrier
Reef
(GBR)
led
considerable
declines
coral
cover.
Here,
we
used
DNA
metabarcoding
approach
investigate
spatio-temporal
diversity
GBR,
including
CoTS.
Generalised
linear
mixed
models
revealed
that
richness,
was
significantly
correlated
with
temporal
variables
(i.e.
season
year)
which
consistent
expected
fluctuations
output
based
spawning
periodicity.
However,
neither
site-specific
differences
nor
correlations
between
composition
environmental,
temporal,
or
spatial
were
found.
This
study
validates
utility
approaches
for
characterising
larvae,
CoTS,
could
prove
useful
future
monitoring
efforts.
Our
findings
suggest
be
better
understand
history
analyses
combining
environmental
(e.g.,
temperature,
nutrients)
oceanographic
currents)
data
deliver
valuable
information
factors
influencing
their
distributions.