Oecologia Australis,
Journal Year:
2021,
Volume and Issue:
25(02), P. 565 - 587
Published: June 16, 2021
Biological
invasions
are
among
the
main
causes
of
biodiversity
loss
on
planet.
Losses
accentuated
in
streams,
which
sensitive
to
human
impacts,
since
they
have
specialized
fauna
and
higher
degree
endemism.
Despite
this,
studies
by
non-native
fish
streams
incipient
Brazil.
In
this
review,
we
present
an
introduction
process
(i.e.,
stages)
biological
invasion,
environmental
factors
that
influence
establishment
impacts
species
streams.
A
methodological
step-by-step
is
also
presented
as
a
way
guide
conduct
Brazilian
addition,
management
actions
measures
prevent
new
cases
introductions
suggestions
for
Avoiding
propagule
pressure
education,
well
legal
aspects
legislation,
can
introductions.
Finally,
gaps
knowledge
perspectives
raised
incentive
interested
parties
enter
subject
develop
fishes
Neotropical Ichthyology,
Journal Year:
2023,
Volume and Issue:
21(1)
Published: Jan. 1, 2023
Abstract
Projects
on
river
basin
integration
are
keen
social-economical
drivers
in
dry
regions
like
the
Brazilian
semiarid,
however,
there
concerning
ecological
impacts
implied
those
projects.
In
a
long-term
analysis,
ichthyofauna
colonization
and
spread
through
East
Axis
of
São
Francisco
River
Integration
Project
(SFIP)
was
monitored
to
assess
possible
receiving
Paraíba
basin.
The
fish
were
collected
semiannually
(2012
2021)
from
19
sites
(SF)
(PB)
basins.
A
total
69
species
recorded,
with
distinct
assemblages
between
SF
(n
=
50),
PB
35),
SFIP
artificial
reservoirs
25).
colonized
by
donor
(SF).
pioneer
finding,
Anchoviella
vaillanti
recorded
for
first
time
it
is
process
establishment.
two
that
reached
canals
(A.
Moenkhausia
costae)
may
be
using
their
year-round
reproduction
wide
diet
successful
colonize
new
environment.
Since
we
detected
potential
reach
became
invasives,
implementation
barriers
contain
recommended.
The Science of The Total Environment,
Journal Year:
2020,
Volume and Issue:
755, P. 143108 - 143108
Published: Oct. 26, 2020
Reservoirs
are
known
to
alter
temperature
and
flow
regimes,
shift
nutrient
cycles,
reduce
downstream
species
diversity
enable
a
predominantly
upstream
spread
of
non-native
species.
However,
information
about
the
seasonal
dynamics
non-natives
from
reservoir
its
tributaries
further
consequences
regarding
spatial
distribution
native
is
rare.
We
observed
occurrence
fish
in
Vltava
River
(Elbe
catchment
area,
central
Europe)
Lipno
Reservoir
for
five
consecutive
years.
radio-tagged
two
four
To
detect
assemblage
variability,
we
sampled
sites
study
area
by
electrofishing
twice
per
year
(spring
autumn).
expected
trends
appearance
and,
conversely,
low
motivation
fishes
descend
reservoir.
By
analysing
nearly
3000
individuals
21
longitudinal
profile
an
effect
distance
on
ratio
upper
i.e.,
increase
increased
proportion,
opposite
was
Analyses
3798
tracking
positions
193
tagged
showed
massive
spring
dispersal
main
tributary,
River,
their
return
wintering.
Their
movement
positively
correlated
with
rate.
Native
Salmo
trutta
specific
smaller
streams
during
summer,
when
presence
most
significant.
These
findings
indicate
that
repeatedly
river
stretch
potentially
compete
resources.
Neotropical Ichthyology,
Journal Year:
2020,
Volume and Issue:
18(4)
Published: Jan. 1, 2020
Abstract
Among
Neotropical
freshwater
ecoregions,
the
Mid-Northeastern
Caatinga
(MNCE)
is
a
fish
knowledge
gap.
Its
temporary
drainages
are
receptors
of
São
Francisco
interbasin
water
transfer
project
(SFR-IWT)
in
Brazilian
semiarid.
We
provide
comprehensive
baseline
richness
five
SFR-IWT
basins.
Species
richness,
shared,
endemic,
threatened
and
non-native
species
were
obtained
using
sampling,
ichthyologic
collections,
literature
online
repositories
(306
localities).
In
total
121,
recorded,
111
them
native,
16
(14.41%)
listed
for
all
Higher
native
(78,
70.27%)
was
recorded
lower-middle
stretch
(SFRE),
including
23
61
(54.95%)
MNCE
basins
(13
endemic),
28
(25.23%)
shared
between
both
ecoregions.
MNCE,
50
Jaguaribe
(JAG),
39
Piranhas-Açu,
36
Paraíba
do
Norte,
32
Apodi-Mossoró
(APO).
The
number
SFRE
each
receptor
basin
varied
from
24
(23.08%,
JAG)
to
20
(22.22%,
APO).
JAG
contains
81.97%
basins’
species.
higher
endemism
deserve
special
attention
regarding
ongoing
hydrological
changes.
This
study
will
help
detect
possible
modifications
ichthyofauna
main
drainages.
Oecologia Australis,
Journal Year:
2021,
Volume and Issue:
25(02), P. 565 - 587
Published: June 16, 2021
Biological
invasions
are
among
the
main
causes
of
biodiversity
loss
on
planet.
Losses
accentuated
in
streams,
which
sensitive
to
human
impacts,
since
they
have
specialized
fauna
and
higher
degree
endemism.
Despite
this,
studies
by
non-native
fish
streams
incipient
Brazil.
In
this
review,
we
present
an
introduction
process
(i.e.,
stages)
biological
invasion,
environmental
factors
that
influence
establishment
impacts
species
streams.
A
methodological
step-by-step
is
also
presented
as
a
way
guide
conduct
Brazilian
addition,
management
actions
measures
prevent
new
cases
introductions
suggestions
for
Avoiding
propagule
pressure
education,
well
legal
aspects
legislation,
can
introductions.
Finally,
gaps
knowledge
perspectives
raised
incentive
interested
parties
enter
subject
develop
fishes
