Heliyon,
Journal Year:
2023,
Volume and Issue:
9(7), P. e17858 - e17858
Published: July 1, 2023
The
extractive
context
of
artisanal
fishing
in
Ecuador
is
very
broad
and
diverse
considering
the
different
equipment
that
used
to
capture
a
varied
set
species.
As
part
this
sector,
there
small
pelagic
fishery,
which
Crucita
parish
Portoviejo
canton
long-standing
economically
relevant
resource
for
community.
objective
article
analyze
environmental
management
aspects
fishery
as
achieving
sustainable
exploitation.
To
end,
information
was
collected
from
beneficiaries
purse-seine
fleet
with
use
structured
questionnaire.
results
revealed
widespread
ignorance
affect
conservation
ecosystems
marine
bioresources.
On
other
hand,
fishermen
are
aware
general
need
implement
measures
guarantee
sustainability
their
fishing.
However,
they
consider
current
regulations
not
adapted
local
context.
Finally,
perspective
those
involved,
implementation
minimum
sizes
measure
could
Frontiers in Marine Science,
Journal Year:
2025,
Volume and Issue:
12
Published: Feb. 3, 2025
Introduction
Steroid
hormones
are
widely
present
in
the
environment
and
pose
potential
risks
to
organisms.
Previous
studies
of
steroid
have
predominantly
focused
on
terrestrial
environments,
with
few
conducted
marine
environments.
Methods
In
this
study,
we
analyzed
occurrence
44
seawater,
sediment,
organisms
collected
from
coast
Guangdong,
China.
Results
Total
concentration
ranged
0.11
30.15
ng/L
ND
8.58
ng/g
(dw)
sediments,
80.52
(ww)
The
highest
average
concentrations
detected
were
progestins,
estrogens,
glucocorticoids,
respectively.
hormone
seawater
significantly
higher
during
dry
season
than
rainy
season.
Guanghai
Bay,
Pearl
River
Estuary,
Daya
Zhelin
Bay
those
other
bays.
Discussion
Negative
correlations
observed
between
salinity,
indicating
a
continental
input.
Risk
assessment
results
indicated
that
17α-ethinylestradiol
posed
high
risks.
Nevertheless,
consumption
seafood
does
not
significant
health
risk
humans.
To
best
our
knowledge,
is
first
study
concurrently
analyze
androgens,
estrogens
water,
diverse
Toxics,
Journal Year:
2025,
Volume and Issue:
13(3), P. 225 - 225
Published: March 19, 2025
The
concentrations
and
spreading
of
eight
synthetic
two
natural
progestins
(PGs)
were
investigated
in
surface
waters
from
ten
sites
at
the
Douro
River
Estuary.
Samples
filtrated
subjected
to
solid-phase
extraction
(SPE)
isolate
concentrate
target
PGs.
extracts
cleaned
by
silica
cartridges
analyzed
LC-MS/MS.
finding
biologically
relevant
amounts
gonanes
(22.3
±
2.7
ng/L),
progesterone
derivatives
(12.2
0.5
drospirenone
(4.1
0.8
PGs
(9.4
0.9
ng/L)
support
possibility
these
compounds
acting
as
endocrine
disruptors.
Despite
absence
significant
differences
amongst
sampling
seasons,
principal
component
analysis
(PCA)
linear
discriminant
(LDA)
approaches
reveal
that
spring
summer
have
different
patterns
PG
distribution
compared
autumn
winter.
assessment
risk
coefficients
(RQs)
potential
fish
blood
sustains
all
tested
pose
a
local
biota
(RQs
>
1).
Additionally,
three
progestins—norethindrone,
norethindrone
acetate,
medroxyprogesterone
acetate—should
reach
human-equivalent
therapeutic
levels
plasma.
Overall,
current
data
show
PGs’
presence
impacts
one
most
important
estuaries
Iberian
Peninsula.
Water,
Journal Year:
2022,
Volume and Issue:
14(9), P. 1399 - 1399
Published: April 27, 2022
Steroids
are
environmental
endocrine
disruptors
that
discharged
from
vertebrates
and
also
byproducts
of
aquaculture.
They
have
strong
disrupting
effects
extremely
harmful
to
the
environment.
The
pollution
steroids
in
Beihai
Bay
was
assessed
through
analyzing
sources
rivers
entering
bay.
Six
different
types
were
detected
seagoing
rivers,
discharge
outlets,
marine
aquaculture
farms,
ranging
0.12
(methyltestosterone)
2.88
ng/L
(estrone),
0.11
(cortisol)
5.41
(6a-methylprednisone
(Dragon)),
0.13
(estradiol)
2.51
(nandrolone),
respectively.
Moreover,
5
13
19
seawater
monitoring
stations,
accounting
for
68.4%
samples,
their
concentrations
ranged
0.18
4.04
(estrone).
Furthermore,
7
15
sediment
78.9%
with
26
(estrone)
776
ng/kg(androsterone).
Thus,
main
source
discharging
sea.
An
ecological
risk
assessment
indicated
estrone
methyltestosterone
at
high
this
region;
17β
estradiol
(E2β)
medium
risk,
other
low
or
no
risk.
This
study
provides
a
scientific
basis
control.
