In
an
era
of
anthropogenically
driven
biodiversity
decline,
monitoring
the
quantity
and
diversity
fish
stocks
with
long-term
time
series
has
therefore
become
great
importance.
Despite
becoming
more
common,
this
is
not
case
globally,
especially
in
Türkiye,
where
research
using
long
term
biomonitoring
data
to
investigate
changes
freshwater
communities
still
very
limited.
The
Euphrates
Tigris
catchments
are
two
recognized
hotspots
Mesopotamia.
These
watersheds
stem
from
Türkiye
flow
into
Persian
Gulf,
having
always
been
significant
importance
humans.
current
study,
we
collected
information
on
153
assemblages
Turkish
parts
catchment
100
museum
collections.
samples
covered
period
1941
2022
were
investigated
a
mixture
approaches,
including
analytical
occurrence,
spatial,
space-for-time
models.
We
found
that
recent
increase
sampling
effort
resulted
increasing
numbers
species
reported
for
both
catchments,
over
time.
however
identified
considerable
difference
spatial
distribution
known
richness,
by
heterogeneous
differences
suitability
high
richness.
identify
substantial
areas
lacking
investigations
potential
numerous
yet
being
described,
while
already
suffered
losses
overexploitation
anthropogenic
pressures.
Our
findings
suggest
effort-driven
disparity
between
catchment,
hindering
future
assessments
management
or
conservation
interventions.
Without
improved
assessments,
may
be
lost
without
notice,
it,
ecosystem
services
function,
thereby
degrading
human
well-being.
Zootaxa,
Journal Year:
2025,
Volume and Issue:
5601(2), P. 335 - 345
Published: March 6, 2025
Garra
cavernicola,
new
species,
is
described
from
the
Hajar
Mountains
in
Oman.
It
very
closely
related
to
sympatric,
but
not
syntopic,
G.
longipinnis,
which
it
distinguished
by
absence
of
an
external
eye,
reduced
squamation,
and
a
whitish,
or
pink-coloured
body.
cavernicola
was
identified
as
"cave
form"
now
recognised
separate
species
following
'Evolutionary
Species
Concept',
with
evolutionary
trajectory
distinct
those
longipinnis.
As
nested
within
longipinnis
clade,
this
considered
paraphyletic
ancestral
species.
Acta Zoologica,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 11, 2025
Abstract
This
study
examines
eight
skeletal
features
to
distinguish
species
within
the
Cobitidae
and
Nemacheilidae
families,
focusing
on
vertebral
column,
fin
structure
caudal
rays.
The
analyses
construction
regionalization
of
interdigitation
pterygiophores
with
neural
haemal
spines
in
dorsal
anal
fins,
distribution
procurrent
rays
fin.
These
characteristics
are
used
identify
taxonomically
relevant
traits
separate
these
two
families.
also
proposes
a
new
method
for
defining
column
regions
presents
anatomical
data
cobitoid
Iran,
including
division
into
five
regions:
postcranial,
abdominal
(anterior
posterior)
posterior).
Aquatic Conservation Marine and Freshwater Ecosystems,
Journal Year:
2024,
Volume and Issue:
34(5)
Published: May 1, 2024
Abstract
This
study
investigates
the
temporal
and
spatial
distribution
of
species
richness
in
Turkish
portions
Euphrates
Tigris
catchments
Mesopotamia,
aiming
to
identify
areas
lacking
sufficient
research
inform
future
conservation
management
efforts.
Data
from
153
fish
assemblages
catchment
100
catchment,
spanning
1941
2022,
were
analysed
using
a
combination
analytical
occurrence,
space‐for‐time
mixed
effect
models.
Results
indicate
an
increase
reported
over
time,
attributed
heightened
sampling
efforts,
reveal
significant
differences
influenced
by
uneven
environmental
suitability.
Identification
with
insufficient
research,
potential
undetected
biodiversity
losses
highlights
need
for
improved
assessments
prevent
unnoticed
loss
ecosystem
degradation.
Our
results
emphasize
importance
accurate
effective
interventions
these
catchments.
Ecohydrology,
Journal Year:
2025,
Volume and Issue:
18(2)
Published: March 1, 2025
ABSTRACT
The
present
study
documents
the
first
records
of
Oxynoemacheilus
angorae
and
eregliensis
in
Göksu
River
within
Mediterranean
basin,
which
points
to
historical
connectivity
between
Lake
Beyşehir
systems.
Whereas
O.
is
mainly
distributed
Western
Black
Sea,
Marmara
Lakes
Region,
,
previously
restricted
Yeşildere
region
Central
Anatolia
Manavgat
drainage
southern
Anatolia,
was
identified
through
morphological
molecular
analyses
(COI
barcode),
confirming
their
taxonomic
status.
A
review
topographical
data
indicates
that
headwaters
basin
are
separated
by
only
minor
elevation
differences,
with
no
significant
mountain
or
hill
barriers,
highlighting
close
proximity.
This
observation
provides
evidence
some
geological
changes
may
have
resulted
partial
deflection
water
flow,
allowing
dispersion
freshwater
species
across
these
systems,
ultimately
leading
disjunct
distribution.
occurrence
common
fish
them
also
indicative
a
link
past
pinpoints
role
geomorphological
processes
on
diversity.
Zootaxa,
Journal Year:
2025,
Volume and Issue:
5620(1), P. 29 - 71
Published: April 7, 2025
The
species
diversity
of
the
genus
Luciobarbus
in
Persian
Gulf
basin
is
revisited
by
integrating
morphological,
mitochondrial,
and
nuclear
genomic
data.
Three
are
recognised:
esocinus,
L.
schejch,
subquincunciatus.
Barbus
rajanorum
a
hybrid
between
schejch
Capoeta
damascina.
mystaceus
described
from
Caspian
basin,
identified
Heckel
(1843)
as
Tigris
Qweiq
schejch.
barbulus
junior
synonym
kersin
likely
conspecific,
First
Revisers,
we
give
priority
to
over
kersin.
syntypes
xanthopterus
hybrids
esocinus
name
unavailable,
was
already
treated
Fishes
barbulus,
pectoralis,
Euphrates
drainages
all
pectoralis
endemic
Mediterranean
basin.
cannot
be
their
mtDNA
they
have
widely
hybridised.
hosts
two
types
mtDNA;
few
species-specific,
but
most
individuals
esocinus.
genome-wide
SNP
data
produced
for
confirms
existence
clusters
(L.
schejch),
demonstrating
variable
extent
hybridisation
both,
agreeing
with
morphology.
Zootaxa,
Journal Year:
2023,
Volume and Issue:
5350(1), P. 1 - 62
Published: Sept. 22, 2023
The
current
status
of
the
freshwater
fishes
Syria
is
revised,
and
an
updated
checklist
presented.
confirmed
comprise
108
species
belonging
to
15
orders,
25
families,
51
genera.
Among
these,
11
(10.2%)
are
alien,
six
(5.6%)
considered
endemic
Syria.
orders
with
largest
numbers
in
ichthyofauna
Cypriniformes
(68
species),
followed
by
Siluriformes
(nine
Cichliformes
(eight
Mugiliformes
(seven
Cyprinodontiformes
(six
others
represent
one
each.
At
family
level,
Cyprinidae
has
greatest
number
(30
species;
27.8%
total
Leuciscidae
(21
Nemacheilidae
(11
Cichlidae
Mugilidae
species).
According
IUCN
Red
List
criteria,
among
97
naturally
distributed
(alien
not
included),
Tristramella
sacra
extinct
(EX)
24
(26.5%)
categorized
as
threatened
extinctions,
CR,
EN,
VU
each).
A
17
previously
reported
from
have
been
excluded
checklist,
either
present
study
or
previous
studies.
Zoosystematics and Evolution,
Journal Year:
2023,
Volume and Issue:
99(2), P. 439 - 455
Published: Oct. 4, 2023
Oxynoemacheilus
sakaryaensis
sp.
nov.
,
is
restricted
to
the
Sakarya
River
basin,
and
O.
melenicus
distributed
in
both
Büyükmelen
Stream.
distinguished
by
having
a
flank
plain
or
with
numerous
irregularly
shaped
pale
brownish
bars
caudal-peduncle
depth
2.8–3.2
times
its
length.
10–13
irregular
blotches
caudal
peduncle
1.9–2.8
banarescui
samanticus
simavicus
fatsaensis
are
valid,
which
belong
bergianus
species
group.
were
differentiated
from
all
other
western
Anatolia
two
diagnostic
unique
nucleotide
substitution
sites
COI
barcoding
region.
Also,
delineation
tests
(ABGD,
GMYC,
ASAP)
phylogenetic
analyses
support
validity
of
as
distinct
species.
Zootaxa,
Journal Year:
2023,
Volume and Issue:
5357(1), P. 1 - 49
Published: Oct. 16, 2023
The
current
status
of
the
freshwater
fishes
Iraq
is
revised,
and
an
updated
checklist
presented.
confirmed
comprise
98
species
belonging
to
16
orders,
28
families,
56
genera.
Among
these,
21
(21.4%)
are
alien,
three
(3.0%)
considered
endemic
Iraq.
orders
with
largest
numbers
in
ichthyofauna
Cypriniformes
(57
species),
followed
by
Siluriformes
(12
Mugiliformes
Cyprinodontiformes
(six
each),
Acanthuriformes
Cichliformes
(three
Centrarchiformes
Gobiiformes
(two
others
represent
only
one
species.
At
family
level,
Cyprinidae
have
greatest
number
(28;
28.3%
total
Nemacheilidae
(16
Leuciscidae
(eight
Mugilidae
Sisoridae
(five
Xenocyprididae
(four
each).
A
20
that
been
previously
reported
from
excluded
checklist.
According
IUCN
Red
List
criteria,
among
77
naturally
distributed
(alien
not
included),
10
(13.0%)
categorized
as
threatened
extinctions,
(3.9%)
CR,
(1.3%)
EN,
six
(7.8%)
VU.
38
taxa
were
assessed
(49.4%)
LC,
27
assigned
NE
(35.1%),
two
(2.0%)
classified
DD,
i.e.,
insufficient
knowledge.
