Hydrology and small pelagic fish drive the spatio–temporal dynamics of springtime zooplankton assemblages over the Bay of Biscay continental shelf
Progress In Oceanography,
Год журнала:
2022,
Номер
210, С. 102949 - 102949
Опубликована: Дек. 22, 2022
Язык: Английский
Copepods as Indicators of Different Water Masses during the Northeast Monsoon Prevailing Period in the Northeast Taiwan
Biology,
Год журнала:
2022,
Номер
11(9), С. 1357 - 1357
Опубликована: Сен. 16, 2022
During
this
research,
the
average
surface
temperature,
salinity,
dissolved
oxygen,
and
pH
were
24.65
±
1.53
(°C),
34.21
0.07
(PSU),
6.85
0.18
(mg/L),
8.36
0.03,
respectively.
Based
on
these
environmental
parameters,
stations
arranged
into
three
groups.
Group
A
represents
located
around
Keelung
Island
with
relative
highest
lowest
values.
Instead,
oxygen
values
recorded
at
offshore
stations.
area
was
charged
by
cold
water
masses,
which
driven
Northeast
monsoon,
in
group
C
affected
Kuroshio
Current.
Kueishan
mainly
mixed
masses
resulting
from
intrusion
monsoon-derived
water.
In
study,
a
total
of
108
copepod
species
identified,
an
abundance
774.24
289.42
(inds.
m-3).
Most
belong
to
orders
Calanoida
Poecilostomatoida,
(RA)
62.96%
30.56%,
Calanoid
copepodites
most
dominant
group,
RA
28.06%.
This
followed
Paracalanus
aculeatus,
18.44%.
The
Clausocalanus
furcatus
Canthocalanus
pauper
4.80%
3.59%,
P.
C.
pauper,
parvus,
Temora
turbinata
positively
correlated
negatively
temperature
waters.
showed
negative
correlation
parvus
T.
turbinata,
while
two
species.
Indicator
selected
indicator
value
higher
than
50%.
Calanopia
elliptica,
Euchaeta
concinna,
discaudata,
Acartia
pacifica,
Macrosetella
gracilis,
Corycaeus
speciosus,
considered
as
monsoonal
A.
for
Current
Farranula
Copilia
mirabilis,
Candacia
aethiopica,
agilis,
gibbula
Acrocalanus
monachus
study
area.
Paracandacia
truncata,
Oncaea
clevei,
Centropages
suitable
indicators
masses.
Язык: Английский
Zooplankton biodiversity and temporal dynamics (2005–2015) in a coastal station in western Portugal (Northeastern Atlantic Ocean)
PeerJ,
Год журнала:
2023,
Номер
11, С. e16387 - e16387
Опубликована: Ноя. 21, 2023
Long-term
monitoring
of
zooplankton
assemblages
provides
essential
knowledge
to
assess
key
factors
impacting
marine
ecosystems.
Despite
the
importance
this
type
data,
stations
worldwide
are
spatially
and
temporally
limited
due
difficulty
maintaining
them.
In
northeastern
Atlantic
area,
Cascais-Watch
is
one
site
operating
since
2005,
despite
some
constraints
throughout
years,
has
allowed
collection
important
data
on
communities
area.
The
present
work
summarizes
collected
until
2015
biodiversity
dynamics
in
site.
results
showed
a
year-round
high
productivity
abundance,
biomass
diversity
for
with
no
significant
general
trends
or
periodicity,
relatively
lower
winter
higher
spring
values.
revealed
two
main
transition
periods
marked
changes
species
composition
dominance
most
abundant
taxa.
This
shift
was
tentatively
attributed
extended
annual
dry
season
verified
Portugal
after
2011,
low
values
upwelling
precipitation,
warmer
waters.
abundance
presented
an
interannual
increase
periods,
proportion
Copepoda,
dominant
taxa,
during
summer
months,
corresponding
increased
abundances
Mollusca,
Diplostraca
(Cladocera)
Cnidaria.
particular,
study
shows
increasing
gelatinous
(particularly
Cnidaria)
spring/summer
months
recent
suggesting
primary
production
prey
dynamics.
Other
relevant
tendencies
were
meroplankton,
such
as
Bivalvia
fish
larvae/eggs,
decreasing
trend
meroplanktonic
coastal
crustaceans,
Decapoda
Cirripedia
highlighting
possible
benthic
populations
region.
highlights
probable
community
that
should
be
monitored
following
years.
Язык: Английский
The Role of Microplastics in Marine Pathogen Transmission: Retrospective Regression Analysis, Experimental Design, and Disease Modelling
Journal of Marine Science and Engineering,
Год журнала:
2022,
Номер
10(12), С. 1837 - 1837
Опубликована: Ноя. 30, 2022
Marine
wildlife
and
aquaculture
species
can
accumulate
large
amounts
of
marine
microplastic
debris
(MMD)
(<1
mm)
carrying
pathogens,
thus
threatening
the
health
ecosystems
posing
a
risk
to
food
safety
human
health.
Here,
we
outline
theoretical
three-perspective
approach
for
studying
relationship
between
MMD
disease.
First,
provide
framework
retrospective
analysis
pathogen
loads
in
animal
tissues
assess
these
other
environmental
variables
order
decide
whether
compound
or
should
be
considered
an
emerging
substance
organism.
Second,
describe
experimental
design
testing
effects
variety
microplastics
on
infection
intensity
two
model
(oysters
zebrafish).
Finally,
create
susceptible–infected
particle
transmission
bivalves
fish.
Overall,
experiments
models
propose
will
pave
way
future
research
designed
role
as
vector
pathogens.
This
multi-faceted
needs
urgent
priority
EU
Strategic
Research
Innovation
Agenda
addressing
disease
challenges
related
MMD.
Язык: Английский
The Role of Microplastics on Marine Pathogen Transmission: Retrospective Regression Analysis, Experimental Design, and Disease Modelling
Опубликована: Окт. 28, 2022
Marine
wildlife
and
aquaculture
species
can
accumulate
large
amounts
of
microplastic
particles
(&lt;1
mm),
threatening
the
health
marine
populations
ecosystems
posing
a
risk
to
food
safety
human
health.
The
uptake
chemicals
from
microplastics
seems
decrease
immune
capacity
bivalves
corals
fight
pathogenic
bacteria,
thereby
increasing
their
vulnerability
disease.
Moreover,
major
pathogens
bivalves,
fish,
humans,
including
several
Vibrio
species,
have
been
shown
be
specifically
enriched
in
microbial
communities
adhered
debris
(MMD).
Microplastics
therefore
serve
as
an
important
vector
for
regulator
pathogen
transmission
disease
dynamics.
Here,
we
outline
theoretical,
three-perspective
approach
studying
relationship
between
MMD
First,
provide
framework
retrospective
analysis
loads
animal
tissues
assess
relationships
them,
bioaccumulation
over
time,
other
environmental
variables.
results
such
used
decide
whether
compound
or
should
considered
emerging
substance
organism.
Second,
describe
experimental
design
testing
effect
variety
on
vivo
removal
(i.e.,
phagocytic
activity
hemocytes)
infection
intensity
two
study
model
(oysters
zebrafish).
Finally,
create
theoretical
susceptible-infected
particle
fish.
Overall,
experiments
models
propose
will
pave
way
future
research
designed
role
pathogens.
This
multi-faceted
needs
urgent
priority
EU
Strategic
Research
Innovation
Agenda
addressing
challenges
related
MMD.
Язык: Английский
Reduced Survival and Disruption of Female Reproductive Output in Two Copepod Species (Acartia clausi and A. tonsa) Exposed to the Model Endocrine Disruptor 17α-Ethinylestradiol
Toxics,
Год журнала:
2023,
Номер
11(5), С. 405 - 405
Опубликована: Апрель 24, 2023
Estuaries
are
heavily
impacted
by
pollutants
from
different
sources
such
as
urban
sewage,
industrial
waste
and
agricultural
runoff.
Endocrine-disrupting
chemicals
(EDCs)
very
concerning
to
estuarine
wildlife,
but
little
is
known
about
their
impact
on
microscopic
biota
zooplankton.
The
aim
of
this
work
was
investigate
the
effects
a
model
EDC,
17α-ethinylestradiol
(EE2),
two
copepod
species
inhabiting
Basque
coast
(Southeastern
Bay
Biscay)
estuaries:
Acartia
clausi
(autochthonous
neritic
species)
tonsa
(non-indigenous
brackish
species).
Female
copepods
were
collected
at
population
maximum
time
(spring
for
A.
summer
tonsa)
exposed
individually
5
ng/L
(low),
µg/L
(medium)
500
EE2
(high)
doses,
environmental
concentrations
found
in
sewage
effluents
toxicological
concentrations.
After
24
h
exposure,
survival
rate
experimental
individuals
checked
lethal
concentration
LC50
calculated.
number
egg-producing
females
amount
egg
laying
hatching
recorded.
integrated
biomarker
index
(IBR)
calculated
integrate
overall
exposure.
Both
had
reduced
rates
µg/L,
lower
(158
µg/L)
compared
(398
µg/L).
eggs
laid
significantly
medium
high
while
reduction
observed
only
dose.
However,
no
significant
differences
detected
success
tonsa.
IBR
showed
that
most
detrimental
In
conclusion,
after
female
disrupted
reproductive
output,
non-environmentally
relevant
Язык: Английский