Modeling the bioenergetics of two herbivorous fish species in the Mediterranean Sea: The native Sarpa salpa and the invasive Siganus rivulatus
Ecological Modelling,
Journal Year:
2024,
Volume and Issue:
495, P. 110804 - 110804
Published: July 22, 2024
Language: Английский
The Seasonal Diet of the Alien Parupeneus forsskali (Fourmanoir & Guézé, 1976) (Actinopterygii, Mullidae) from Cyprus
Journal of Marine Science and Engineering,
Journal Year:
2024,
Volume and Issue:
12(7), P. 1122 - 1122
Published: July 4, 2024
The
alien
Red
Sea
goatfish,
Parupeneus
forsskali
(Fourmanoir
&
Guézé,
1976),
is
a
Lessepsian
migrant,
entering
the
Mediterranean
through
Suez
Canal.
This
study
explores
its
seasonal
diet
and
biological
traits
in
Cyprus,
non-native
habitat.
From
August
2019
to
July
2021,
total
of
249
specimens
were
collected,
ranging
length
(TL)
from
5.8
27.7
cm,
with
mean
TL
15.1
±
4.54
cm
(SD).
These
examined
respect
sex
season.
Through
various
methods
(F%,
N%,
W%,
IRI),
feeding
habits
species
analysed,
revealing
dominated
by
Crustacea
(mainly
Decapoda)
Polychaeta,
secondary
consumption
Mollusca,
Echinodermata,
others.
Significant
differences
found
between
males
juveniles
females
juveniles,
adults
preferring
Decapoda
Copepoda,
while
variations
mainly
influenced
prey
availability.
goatfish
exhibited
ontogenetic
niche
shifts
depth
habitat
distribution,
size
age.
trophic
level
(TROPH)
P.
ranged
3.22
3.46,
corresponding
an
omnivorous
preference
for
animals.
findings
suggest
that
opportunistic
predator
diverse
diet,
thriving
new
potentially
impacting
local
marine
food
webs
competing
economically
important
native
resources.
Language: Английский
An Economic View on the Effects of Invasive Rabbitfishes Based on Fishers’ Perspectives: The Case of the Parrotfish Métier in the South Ionian Sea
Fishes,
Journal Year:
2023,
Volume and Issue:
8(9), P. 447 - 447
Published: Sept. 4, 2023
The
effect
of
thermophilic
species
invasion
in
the
eastern
Mediterranean
is
well-noted
literature.
During
last
decade
western
Greek
waters,
small-scale
fisheries
(SSF)
catches
exhibit
increased
relative
contribution
rabbitfishes,
which
have
originated
from
Red
Sea
and
inhabited
country’s
southeastern
part
since
Second
World
War.
This
study
has
used
quantitative
qualitative
information
to
assess
short-term
economic
rabbitfishes’
expansion
SSF
métier
targeting
indigenous
parrotfish
South
Ionian
Sea.
micro-level
negative
effects
corresponding
adverse
on
fishers’
wealth
been
estimated.
results
indicate
attitudinal
differences
among
fishers,
although
their
local
ecological
knowledge
may
enable
them
avoid
hot
spots
mitigate
respective
losses,
that
particularly
for
smaller
vessels
already
seem
be
quite
important.
As
climate
warming
further
facilitate
outcompeting
parrotfish,
latter
eventually
become
economically
unsustainable.
Fine-scale
analysis
at
level
enables
addressing
specificities
social-ecological
systems
can
contribute
informed
more
effective
decision
making
related
SSF,
an
important
building
block
coastal
communities.
Language: Английский
Spatial Distribution and Genetic Diversity of Turbot (Scophthalmus maximus, Linnaeus, 1758) in Bulgarian Black Sea Waters Relative to Fishing Pressure and Their Abiotic Environment
Journal of Marine Science and Engineering,
Journal Year:
2023,
Volume and Issue:
11(10), P. 1982 - 1982
Published: Oct. 13, 2023
The
present
study
examined
the
genetic
diversity
and
spatial
distribution
of
turbot
(Scophthalmus
maximus),
an
economically
important
species
on
Bulgarian
Black
Sea
coast.
Maximum
entropy
(MaxEnt)
modeling
software
Version
3.4.4.
was
utilized
to
develop
a
habitat
suitability
model
for
S.
maximus
in
region.
Data
collected
via
demersal
pelagic
surveys
sampling
from
2017
2021
were
link
occurrence
localities
with
selected
abiotic
factors.
Our
findings
showed
that
species’
preferences
are
strongly
influenced
by
temperature
dissolved
oxygen,
projections
based
simplified
climatic
scenarios
indicated
potential
shifts
substantial
reduction
reproduction
habitats
northern
assessment
mtDNA
COIII
sequencing;
MtDNA
revealed
low
level
polymorphism
all
analyzed
populations.
extensive
fishing
pressure
may
have
increased
likelihood
population
bottlenecks
consequent
decline
Shabla,
Nesebar,
Tsarevo
Tajima’s
D
values
latter
underwent
bottleneck
followed
rapid
expansion.
essential
conservation
effective
management
stocks
Language: Английский