Biology,
Journal Year:
2024,
Volume and Issue:
13(12), P. 1051 - 1051
Published: Dec. 15, 2024
The
fishery
biology
of
the
invasive
Atlantic
blue
crab
Callinectes
sapidus
in
Mediterranean
Sea
outside
eastern
sectors
basin
has
been
only
recently
investigated.
Here
we
studied
population
C.
Lesina
Lagoon
(Adriatic
Sea,
SE
Italy).
In
total,
838
crabs
were
captured
monthly
between
February
2021
and
January
2022
using
fyke
nets.
Abundances
varied
seasonally
with
catches
per
unit
effort
ranging
0
1.76
nets−1
d−1
winter
summer.
Spatial
abundances
estimated
summer
by
a
Carle–Strub
procedure
ranged
0.06
0.64
m−2.
sex
ratio
(♂/♀)
was
close
to
1:1;
males
prevailed
August
September;
ovigerous
females
occurred
from
April
August.
males’
size
at
morphological
maturity
smaller
than
(110.6–112.3
mm
vs.
122.1–123.1
mm).
Seasonal
von
Bertalanffy
growth
parameters
indicated
that,
compared
males,
showed
shorter
maximum
lifespan
(5
8
years),
higher
coefficient
K
(0.6
0.4
y−1)
performance
index
Ф’
(4.6
4.3),
while
sizes
CW∞
(237.8
232.6
mm)
seasonality
indices
C
(0.62
0.57)
similar.
Furthermore,
natural
fishing
mortalities
exploitation
rate.
We
discussed
results
present
study
context
available
literature
provide
valuable
basis
for
implementation
standardized
Mediterranean-scale
management
plans,
matching
sustainable
conservation
coastal
ecosystems.
Marine Pollution Bulletin,
Journal Year:
2024,
Volume and Issue:
206, P. 116715 - 116715
Published: July 17, 2024
The
contribution
of
non-indigenous
species
to
the
transfer
contaminants
in
invaded
food
webs
represents
an
active
research
area.
Here
we
measured
trace
metals
and
CN
stable
isotopes
five
populations
invasive
Atlantic
blue
crab
Callinectes
sapidus
baseline
bivalve
from
Spain,
Italy
Greece.
They
were
used
estimate
trophic
effects
position
isotopic
niche
C.
sapidus.
Maximum
occurred
where
showed
largest
niches
highest
positions;
furthermore,
consistency
metal
profiles
between
bivalves
crabs
co-varied
with
latters.
Omnivory
may
influence
success
species,
but
also
limit
its
effectiveness
for
biomonitoring.
However,
our
results
indicated
that
analysis
provides
a
clarifying
background
cast
patterns
contamination
as
well
other
omnivorous
biomonitor
species.
Frontiers in Marine Science,
Journal Year:
2025,
Volume and Issue:
11
Published: Jan. 16, 2025
Introduction
Non-native
species
are
widely
recognized
as
threats
to
biodiversity,
ecosystems,
and
the
services
they
provide
humans.
The
Mediterranean
Sea
has
a
high
biodiversity
of
endemic
is
hot
spot
biological
invasions.
One
most
recent
ecosystems
invasion
Atlantic
blue
crab
Callinectes
sapidus
.
Methods
occurrences
throughout
coastline
were
indexed
from
citizen
science
through
Global
Biodiversity
Information
Facility.
Using
spatial
analysis
linear
mixed
models,
we
investigated
geomorphology
(i.e.,
water
depth
coastal
wetlands
extension),
physical
variables
salinity
winter
summer
temperature),
quality
chlorophyll-a,
nitrate
orthophosphate)
anthropogenic
factors
ship
density
population
size)
potentially
affecting
occurrence
along
coast.
Results
Our
results
showed
that
nitrate,
an
indicator
riverine
nutrient
loading,
depth,
slope
bottom,
influential
in
explaining
crabs.
Water
temperature
had
lesser
impacts;
factors,
such
commercial
marine
traffic
human
size
no
effect
on
occurrence.
Discussion
These
sug
gest
benthic
primary
production
shallow
drive
coasts.
Even
considering
data
limitations
gaps,
our
large-scale
findings
contribute
broader
understanding
success
which,
turn,
can
inform
management
actions
outline
research
needs.
Biology,
Journal Year:
2025,
Volume and Issue:
14(2), P. 133 - 133
Published: Jan. 27, 2025
The
invasion
history
of
the
gastropod
mollusk
Bursatella
leachii
in
Mediterranean
Sea
demonstrates
a
dynamic
progression
through
distinct
phases,
comprising
arrival,
establishment,
and
expansion
phases.
Initial
records
1930s
trace
its
entry
Suez
Canal,
likely
followed
by
larval
transport
to
Aegean
facilitated
natural
currents.
subsequent
spread
Maltese
Italian
waters
suggests
secondary
dispersion
favored
maritime
traffic
or
aquaculture
activities.
establishment
phase
shows
significant
increase
occurrences
spatial
dispersion,
with
aggregated
nuclei
central
Mediterranean.
was
characterized
rapid
dispersal
intensified
densities,
particularly
Aegean,
Adriatic,
Spanish
coasts.
These
findings
underscore
species’
capability
invade
from
multiple
fronts,
driven
both
human-mediated
processes.
A
new
location
Strait
Sicily,
i.e.,
island
Lampedusa,
is
reported
present
paper
for
species.
Given
low
number
observations,
viable
population
on
not
confirmed,
although
detection
validates
Straits
Sicily
as
key
area
intense
settlement
Italian Journal of Food Safety,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
In
recent
decades,
the
Mediterranean
Sea
has
experienced
invasion
of
blue
crab
(Callinectes
sapidus),
which
threatens
marine
ecosystem
and
economic
activities
related
to
fishing
aquaculture
because
its
aggressive
behavior.
Control
strategies
are
developing
reduce
population.
Italy,
a
partial
solution
problem
is
promotion
as
food
product.
However,
ensure
consumer
safety,
promoting
consumption
must
be
accompanied
by
careful
risk
analysis.
This
study
aims
assess
heavy
metals
antibiotic
residues
in
appendage
muscle
18
samples
from
various
sites,
selected
sex
size.
Heavy
were
quantified
using
inductively
coupled
plasma
mass
spectrometry,
antibiotics
analyzed
with
liquid
chromatography/triple-quadrupole
tandem
spectrometry
multiresidues/multiclass
method.
all
samples,
lead
was
never
detected,
while
cadmium
mercury
concentrations
exceeded
limit
0.5
mg/kg
set
Regulation
(EU)
2023/915.
Only
one
sample
tested
positive
for
occurrence
12
residues.
The
results
showed
that
species
commonly
characterized
accumulation
metals,
according
other
studies.
Therefore,
monitoring
concentration
these
important
safety
management.
Data
on
detected
single
require
further
investigation
through
extensive
sampling
terms
both
number
involving
wider
area
along
coast,
allow
proper
characterization.
Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology,
Journal Year:
2024,
Volume and Issue:
297, P. 111709 - 111709
Published: July 23, 2024
This
study
provides
a
comprehensive
analysis
of
the
eco-physiological
responses
blue
crab
(Callinectes
sapidus)
to
variations
in
salinity,
shedding
light
on
its
adaptability
and
invasive
success
aquatic
environments.
Gender-specific
differences
osmoregulation
Electron
Transport
System
(ETS)
activity
highlight
importance
considering
sex-specific
aspects
when
understanding
physiological
species.
Females
exhibited
increased
ETS
at
lower
salinities,
potentially
indicative
metabolic
stress,
while
males
displayed
constant
across
range
salinities.
Osmoregulatory
capacity
which
depended
gender
was
efficient
within
meso-polyhaline
waters
but
decreased
higher
particularly
males.
These
findings
provide
valuable
understandings
into
how
C.
sapidus
specimens
an
invaded
area
responds
salinity
changes,
important
for
considerate
distribution
through
saline
pathways
during
tidal
cycle
fluctuations.
shows
interdisciplinary
research
effective
management
species
conservation
affected
ecosystems.
