Effects of hurricane impact on the functionality of hermatypic corals of the Banco Chinchorro coral reef
Marine Biodiversity,
Journal Year:
2025,
Volume and Issue:
55(2)
Published: March 3, 2025
Language: Английский
Using Baited Remote Underwater Video Surveys (BRUVs) to Analyze the Structure of Predators in Guanahacabibes National Park, Cuba
Fishes,
Journal Year:
2025,
Volume and Issue:
10(4), P. 169 - 169
Published: April 10, 2025
The
reef
fish
communities
of
the
Guanahacabibes
National
Park
have
been
studied
for
20
years
using
various
methodologies
that
allowed
us
to
understand
aspects
their
diversity
and
structure.
However,
due
gaps
in
information
about
abundance
distribution
mesopredators
(big
sharks),
a
new
study
was
conducted
2017
determine
structure,
explore
influence
different
factors
on
spatial
variability,
evaluate
behavior.
To
achieve
this,
Baited
Remote
Underwater
Video
Surveys
(BRUVs)
methodology
successfully
applied,
locating
single
set
BRUVs
at
90
sites
distributed
across
9
sectors
park’s
functional
zoning.
Variability
mesopredator
metrics
potential
prey
assessed
through
PERMANOVA
analysis;
distance-based
linear
model
(DISTLM)
used
relationship
between
biological,
abiotic,
condition
variables;
animal
behavior
classified
as
incidental,
cautious,
or
aggressive.
A
total
64
species
were
identified,
7
which
mesopredators,
3
sharks.
An
uneven
observed
among
sectors,
with
most
abundant
being
Carcharhinus
perezi,
Sphyraena
barracuda,
Mycteroperca
bonaci.
Mesopredator
more
closely
related
zone
use
its
regulations
than
biological
abiotic
variables.
Sharks
strictly
protected
areas,
coincided
relatively
murky
waters
stronger
currents.
More
50%
sharks
displayed
exploratory
aggressive
towards
bait
basket.
analyzed
validate
effectiveness
management
area
suggest
presence
healthy
resilient
communities.
Language: Английский
Shifts in dominance of benthic communities along a gradient of water temperature and turbidity in tropical coastal ecosystems
PeerJ,
Journal Year:
2024,
Volume and Issue:
12, P. e17132 - e17132
Published: April 22, 2024
Tropical
coastal
benthic
communities
will
change
in
species
composition
and
relative
dominance
due
to
global
(e.g.,
increasing
water
temperature)
local
terrestrial
influence
land-based
activity)
stressors.
This
study
aimed
gain
insight
into
possible
trajectories
of
assemblages
Raja
Ampat,
Indonesia,
by
studying
coral
reefs
at
varying
distances
from
human
activities
marine
lakes
with
high
turbidity
three
temperature
categories
(<31
°C,
31–32
>32
°C).
The
community
diversity
coverage
major
groups
were
quantified
via
replicate
photo
transects.
varied
significantly
among
the
reef
lake
habitats.
<31
°C
contained
hard
coral,
crustose
coralline
algae
(CCA),
turf
coverages
similar
those
found
(17.4–18.8%
3.5–26.3%
CCA,
15–15.5%
algae,
respectively),
while
higher
(31–32
°C)
did
not
harbor
or
CCA.
Benthic
was
influenced
geographic
distance
sites
but
activity
depth.
appeared
be
structured
temperature,
salinity,
degree
connection
adjacent
sea.
Our
results
suggest
that
beyond
a
certain
(>31
°C),
shift
away
dominance,
new
outcomes
can
highly
distinct,
macroalgae,
cyanobacterial
mats,
filter
feeders
such
as
bivalves
tubeworms.
illustrates
use
model
systems
shifts
structure
tropical
ecosystems
if
corals
are
no
longer
dominant.
Language: Английский