Conservation Biology,
Год журнала:
2025,
Номер
39(3)
Опубликована: Май 30, 2025
Abstract
Hydroelectric
dams,
once
seen
as
clean
and
renewable
energy
sources,
have
been
the
subject
of
extensive
research,
particularly
concerning
their
socioenvironmental
impacts.
The
Belo
Monte
hydroelectric
power
plant
(HPP)
relies
on
operation
2
dams
that
divert
water
from
a
130‐km
stretch
Xingu
River
to
generate
energy.
dam
has
disrupted
seasonal
flooding
cycle
(flood
pulse)
along
Volta
Grande
do
(VGX)
created
reduced
discharge
condition
analogous
prolonged
extreme
dry
season
in
watershed.
Before
HPP,
local
communities
relied
highly
diverse
abundant
fish
assemblage
supported
by
ecosystem.
Local
VGX
residents
sought
partnerships
established
Independent
Territorial
Environmental
Monitoring
Program
(MATI‐VGX).
Through
this
program,
locals
monitored
spawning
sites
fishing
dynamics.
This
monitoring
complemented
quantified
communities’
perceptions
about
environmental
impacts
caused
HPP.
HPP
was
associated
with
shortage
critically
undermined
river's
capacity
sustain
vital
ecosystem
processes
support
people's
lives.
Drastic
transformations
traditional
lifestyles,
shifts
practices,
significant
decline
yield
occurred
jeopardized
food
sovereignty
security.
licensing
process
ignored
ecological
knowledge
links
among
flood
pulse,
aquatic
seasonally
flooded
ecosystems,
lifestyles
residents.
To
ensure
sustainability
VGX,
needs
change
key
areas,
maintain
discharge,
avoid
short‐term
fluctuations,
emulate
natural
interannual
variability
mitigate
pulse
disruption.
should
never
be
projects
where
are
most
affected.
These
central
decision‐making
regarding
impact
assessment,
mitigation,
monitoring.
Environmental Reviews,
Год журнала:
2023,
Номер
32(3), С. 414 - 437
Опубликована: Авг. 2, 2023
For
millennia
humans
have
extracted
biological
and
physical
resources
from
the
planet
to
sustain
societies
enable
development
of
technology
infrastructure.
Growth
in
human
population
changing
consumption
patterns
increased
footprint
on
ecosystems
their
biodiversity,
including
fresh
waters.
Freshwater
biodiversity
face
many
threats
it
is
now
widely
accepted
that
we
are
a
crisis.
One
means
protecting
restoring
freshwater
better
manage
exploitation
biota
aggregate
(e.g.,
sand,
gravel,
boulders).
Here
outline
arising
such
identify
response
options
ensure
methods
levels
extraction
sustainable
allow
recovery
over-exploited
ecosystems.
The
guidance
provide
will
practitioners,
policy-makers,
resource
stewards
embrace
effective,
sustainable,
evidence-based
approaches
extraction.
Response
for
managing
species
include
strengthening
assessment
reporting,
using
science-based
reduce
overexploitation
support
recovery,
embracing
community
engagement,
building
or
tightening
legislation.
reducing
demand
harvest,
governance,
monitoring
environmental
impacts,
promoting
restoration
degraded
compensating
losses.
Diverse
case
studies
highlight
examples
where
various
management
actions
been
implemented
an
effort
consider
how
they
can
be
scaled
up
adapted
other
contexts.
Managing
key
aspect
broader
initiatives
needed
protect
restore
around
globe.
Environmental Management,
Год журнала:
2024,
Номер
74(6), С. 1037 - 1044
Опубликована: Июнь 21, 2024
We
review
the
negative
impacts
of
vinasse,
a
byproduct
alcohol
distillation,
on
Brazil's
freshwater
ecosystems.
found
total
37
pollution
events
between
years
1935
and
2023,
with
this
number
almost
certainly
an
underestimate
due
to
underreporting
and/or
unassessed
events.
Pollution
by
vinasse
occurred
both
through
accidents
(e.g.,
tank
failure)
deliberately
(i.e.,
opening
floodgates),
although
in
many
cases
causes
remain
undetermined.
All
caused
fish
kills,
some
records
reporting
effects
other
organisms
as
well
crustaceans
reptiles).
associated
effects,
was
reported
for
11
states,
notable
São
Paulo.
Most
biodiversity
were
recorded
rivers,
followed
streams
reservoirs.
Some
affected
river
systems
harbour
threatened
fishes.
Hydrological
connectivity
means
that
could
have
propagated
along
watercourses.
Given
these
consequences
biodiversity,
ecosystem
functioning
services,
we
recommend
remedial
actions.
Neotropical Ichthyology,
Год журнала:
2024,
Номер
22(2)
Опубликована: Янв. 1, 2024
Abstract
The
Tocantins-Araguaia
River
basin
hosts
an
elevated
number
of
fish
species,
and
new
species
have
been
continuously
described.
In
this
basin,
we
investigated
patterns
endemic
descriptions
examining
their
association
with
distribution
range,
altitudinal
gradient,
fluvial
hierarchy
watercourses,
sampling
effort.
For
each
collected
its
year
taxonomic
description,
geographical
coordinates
holotype,
body
size
(a
proxy
for
range),
both
altitude
effort
related
to
the
locality
holotype.
was
positively
correlated
effort,
better-sampled
regions
accumulated
more
over
time.
Moreover,
whereas
negatively
it.
While
recent
were
associated
first
third
order
streams,
older
high-order
rivers.
Therefore,
broader
distributions
tend
in
lower
altitude,
restricted
at
higher
altitudes.
Increasing
efforts
upper
seems
be
a
good
fruitful
strategy
reducing
Linnean
shortfall.
Global Change Biology,
Год журнала:
2024,
Номер
30(10)
Опубликована: Окт. 1, 2024
ABSTRACT
Recent
decades
have
witnessed
substantial
changes
in
freshwater
biodiversity
worldwide.
Although
research
has
shown
that
can
be
shaped
by
habitat
diversity
and
human‐induced
pressure,
the
potentials
for
interaction
between
these
drivers
at
large
spatial
extents
remain
unclear.
To
address
issues,
we
employed
a
spatially
extensive
multitrophic
fish
insect
database
from
3323
stream
sites
across
United
States,
to
investigate
ability
of
modulate
effect
human
pressure
on
richness
abundance
insects.
We
found
evidence
high
levels
were
associated
with
increased
insects
(including
whole‐assemblage
individual
trophic
guilds).
also
show
effects
tend
become
positive
diversity.
Where
is
low,
strongly
reduces
abundance,
whereas
reductions
are
attenuated
Structural
equation
modeling
revealed
reduced
diversity,
indirectly
negatively
affecting
These
findings
illustrate
that,
addition
promoting
greater
biodiversity,
may
mitigate
deleterious
pressures
two
assemblages.
Overall,
our
study
suggests
maintaining
useful
way
protect
ongoing
increases
pressure.
However,
if
continue
increase,
this
will
reduce
further
threatening
