Folia Malacologica,
Journal Year:
2024,
Volume and Issue:
32(4)
Published: Nov. 20, 2024
Native
to
Eastern
Asia,
the
Chinese
Pond
Mussel
(Sinanodonta
woodiana)
(Mollusca:
Bivalvia)
is
one
of
most
threatening
invaders
freshwater
habitats
worldwide.
Algerian
waters
are
no
exception.
In
2023,
mussel
was
discovered
in
two
locations,
which
a
protected
area.
Here,
we
report
Babar
Dam
reservoir
as
new
site
its
occurrence
and
southernmost
record
species
country.
The
present
survey
conducted
May
2023
included
set
live
S.
woodiana
specimens
variable
sizes
(from
95.4
210.4
mm)
developmental
stages
4
11
years
old),
suggests
that
succeeded
establishing
sustainable
population
can
spread
colonise
territories.
possible
pathway
introduction
whole
country
discussed.
Overall,
Algeria
appears
be
seriously
underestimated
overlooked;
it
crucial
establish
monitoring
plan
manage
species’
progress
assess
impact
on
recipient
ecosystems
indigenous
communities.
Aquatic Conservation Marine and Freshwater Ecosystems,
Journal Year:
2025,
Volume and Issue:
35(2)
Published: Feb. 1, 2025
ABSTRACT
Many
species
have
been
threatened
over
the
past
century
because
of
anthropogenic
disturbances.
Parasites
are
among
most
vulnerable
groups
they
rely
on
host
organisms,
many
which
now
endangered.
While
studies
argued
and
evaluated
risk
parasite
extinction,
empirical
evidence
is
still
lacking,
especially
from
aquatic
ecosystems.
Here,
we
show
highly
status
relict
populations
ectoparasitic
copepod
Salmincola
californiensis
in
Japan.
S.
attaches
to
branchial
cavities
freshwater
salmonids
genus
Oncorhynchus
spp.,
only
four
local
reported
disparate
regions
Japan,
isolated
probably
due
range
contractions
after
glacial
periods.
Through
citizen‐led
field
surveys,
found
no
infections
half
previously
reported,
suggesting
that
extinction
has
occurred
within
last
50–60
years.
The
upstream
reaches
Kiso
River
Naka
harboured
sustained
populations,
though
population
may
also
experienced
decline.
Our
results
indicate
parasites
can
quickly
decline
a
large
geographic
scale,
at
margins.
When
focal
visible,
citizen
science
an
effective
approach
for
identifying
distributional
rare
aiding
their
conservation.
Invertebrate Systematics,
Journal Year:
2025,
Volume and Issue:
39(3)
Published: March 6, 2025
The
family
Unionidae
is
a
diverse
and
ecologically
significant
group
of
freshwater
invertebrates,
playing
keystone
role
in
the
energy
flow
nutrient
cycling
aquatic
ecosystems.
A
recent
taxonomic
revision
East
Asian
endemic
subtribe
Cristariina
within
has
revealed
its
division
into
seven
genera.
As
an
important
part
Asia,
China
harbours
exceptionally
highly
unique
fauna
mussels.
However,
comprehensive
understanding
species
diversity
phylogenetic
relationships
remains
elusive
due
to
inadequate
sampling
previous
studies,
particularly
China.
Here,
we
conducted
mitogenomic
analyses
based
on
extensive
across
17
provinces
COI
sequences
GenBank
were
thoroughly
examined,
combined
with
obtained
from
this
study,
total
33
monophyletic
groups
identified.
By
integrating
molecular
data
morphological
characteristics,
describe
new
genus
species:
Acudonta
baitiaoensis
gen.
nov.,
sp.
nov.
,
as
well
newly
recorded
for
(Cristaria
truncata
).
Additionally,
confirm
that
nominal
Anemina
euscaphys
syn.
fluminea
globosula
are
junior
synonyms
arcaeformis
through
integrative
taxonomy.
Mitogenomic
phylogeny
establishes
following
robust
framework
at
generic
level
Cristariina:
((((Sinanodonta
+
)
(Beringiana
Pletholophus
))
((Anemina
Buldowskia
Amuranodonta
Cristaria
Besides
Sinanodonta
distribution
other
genera
exhibits
distinct
faunal
regions
endemism.
ZooBank:
urn:lsid:zoobank.org:pub:30E44DEB-3CCD-47F7-A2B2-3FA851BE434E.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 19, 2025
Abstract
Facilitative
and
competitive
interactions
among
coexisting
parasite
species,
as
well
alternative
host
produce
considerable
ecological
evolutionary
responses
to
host-parasite
relationships.
Such
effects
can
be
illuminated
by
impacts
of
non-native
species
on
relationships
in
local
communities.
We
used
the
association
between
parasitic
European
bitterling
fish
(
Rhodeus
amarus
)
unionid
mussels
(which
eggs
their
gills)
test
invasive
Chinese
pond
mussel
Sinanodonta
woodiana
presence
non-bitterling
macroparasites
pattern
use
across
12
communities
with
absence
or
S.
(and
variation
duration
coexistence
species).
While
all
six
were
(with
prevalence
>
30%
Unio
spp.),
no
individual
was
infected
bitterling.
The
did
not
affect
distribution
native
mussels.
Large
hosted
more
Infection
parasites,
mostly
water
mites
(prevalence
47%)
trematodes
(25%),
rates
parasitism.
discuss
our
results
context
rapid
evolution
new
range
its
implication
conservation.
Zoological Journal of the Linnean Society,
Journal Year:
2024,
Volume and Issue:
201(3)
Published: July 1, 2024
Abstract
The
freshwater
mussels
(Bivalvia:
Unionida)
of
the
biodiversity
hotspot
Sundaland
are
experiencing
severe
anthropogenic
threats,
whilst
their
diversity
and
distribution
remain
poorly
understood.
Here,
we
present
first
modern-day
data
on
Unionida
across
western
Borneo.
Mussels
were
surveyed
collected
in
upper
Kapuas
Pawan
river
basins
West
Kalimantan,
Indonesia,
Sambas
Besar,
Sarawak
Batang
Sadong
Sarawak,
Malaysia.
DNA
sequencing
(COI
+
16S
ND1
18S
28S)
morphological
analyses
conducted
to
delineate
identify
species,
reconstruct
phylogenetic
relationships
population
genetics.
Specimens
belonged
six
native
genera
nine
which
seven
endemic
Borneo
three
new
science,
i.e.
Ctenodesma
mawonae
Zieritz
et
al.,
sp.
nov.,
basin,
bersinara
Rectidens
lauris
both
basin.
monotypic
Caudiculatus
Discomya
phylogenetically
highly
divergent
from
other
known
Gonideinae
taxa,
potentially
indicating
a
separate
tribe
(for
Caudiculatus)
subfamily
Discomya).
In
addition,
report
records
non-native
Sinanodonta
pacifica
Heude,
1878
basins.
NeoBiota,
Journal Year:
2024,
Volume and Issue:
96, P. 1 - 18
Published: Oct. 23, 2024
Unionid
mussels
are
globally
threatened
by
several
human
disturbances,
including
the
introduction
of
non-native
species.
Among
these,
biofouling
zebra
and
quagga
Ponto-Caspian
origin
considered
to
be
especially
detrimental
unionid
locomotion,
filtration
physical
condition.
The
aim
our
study
was
determine
compare
impact
dreissenid
fouling
and/or
presence
on
locomotion
burrowing
native
Unio
tumidus
invasive
Sinanodonta
woodiana
,
a
novel
invader
expanding
its
range
in
Europe
recent
decades.
We
tested
unionids
collected
from
Lake
Balaton
(central
Europe)
that
were
fouled
dreissenids
(zebra
mixed),
cleaned
or
non-fouled
(collected
without
any
signs
fouling).
Moreover,
absence
other
individuals
isolated
mesh
bags
influence
direct
environment
behaviour.
Movement
initiation
time,
distance
level
retrieved
videos
recorded
for
24
hours.
Direct
affected
only
behaviour
U.
limiting
their
delaying
movements.
After
removal
fouling,
movement
timing
returned
back
normal,
but
still
burrowed
less
than
control
individuals,
indicating
persisting
effects
reduced
unionids.
responded
(especially
mussels)
with
increased
burrowing.
These
different
responses
two
species
Dreissena
spp.
indicate
biofoulers
may
biotic
interactions
between
promoting
(less
susceptible
negative
S.
indirectly
affect
through
apparent
competition,
constituting
an
environmental
reservoir
exerting
stronger