Tracking spatial patterns and daily modulation of behavior in a natural population of the pulse-type weakly electric fish, Gymnotus omarorum
iScience,
Journal Year:
2025,
Volume and Issue:
28(3), P. 112018 - 112018
Published: Feb. 13, 2025
Tracking
individual
spatial
and
activity-rest
patterns
in
natural
populations
is
challenging
because
it
seldom
possible
to
monitor
individual-specific
traits
continuously.
The
continuous
emission
of
electric
signals
(EODs)
by
weakly
fish
provides
a
unique
opportunity
do
this.
We
present
cutting-edge
technique,
arrays
electrodes
connected
low-cost
amplifiers
tracking
algorithm,
provide
the
identification
pulse-type
wild.
Based
only
on
EOD
recordings
individuals
Gymnotus
omarorum,
we
show
that
(1)
there
are
more
core
than
edge
zones;
(2)
transitions
into
out
recording
sites
were
frequent
at
night,
(3)
resident
robust
nocturnal
increases
rate
likely
associated
with
daily
variations
water
temperature.
This
experimental
approach
can
be
extended
other
species
improve
our
understanding
behavior,
ecology,
well-being
environments.
Language: Английский
Social behavior in South American electric fishes: Linking neuroendocrine Regulation, signal Plasticity, and reproductive strategies
Laura Quintana,
No information about this author
Vielka L. Salazar
No information about this author
Neuroscience,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 1, 2025
Language: Английский
Living life with an electric touch
Journal of Experimental Biology,
Journal Year:
2023,
Volume and Issue:
226(23)
Published: Nov. 27, 2023
ABSTRACT
The
electric
organ
discharges
(EODs)
produced
by
weakly
fish
have
long
been
a
source
of
scientific
intrigue
and
inspiration.
study
these
species
has
contributed
to
our
understanding
the
organization
fixed
action
patterns,
as
well
enriching
general
imaging
theory
unveiling
dual
impact
an
agent's
actions
on
environment
its
own
sensory
system
during
process.
This
Centenary
Review
firstly
compares
how
generate
species-
sex-specific
stereotyped
fields
considering:
(1)
peripheral
mechanisms,
including
geometry,
channel
repertoire
innervation
electrogenic
units;
(2)
organs
(EOs);
(3)
neural
coordination
mechanisms.
Secondly,
discusses
threefold
function
fish-centered
fields:
signals
that
encode
material,
geometry
distance
nearby
objects,
serving
short-range
modality
or
‘electric
touch’;
mark
emitter
identity
location;
convey
social
messages
encoded
in
stereotypical
modulations
field
might
be
considered
species-specific
communication
symbols.
Finally,
this
considers
range
potential
research
directions
are
likely
productive
future.
Language: Английский
Tracking spatial patterns and nocturnal arousal in an undisturbed natural population of the pulse-type weakly electric fish Gymnotus omarorum
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 2, 2024
SUMMARY
Assessing
animals’
locomotor
and
activity-rest
patterns
in
natural
populations
is
challenging.
It
requires
individual
identification
behavioral
tracking
sometimes
complex
inaccessible
environments.
Weakly
electric
fish
are
advantageous
models
for
remote
monitoring
due
to
their
continuous
emission
of
signals
(EODs).
Gymnotus
omarorum
a
South
American
freshwater
pulse-type
weakly
fish.
Previous
manual
recordings
restrained
individuals
the
wild
showed
spatial
distribution
compatible
with
territoriality
nocturnal
increase
EOD
rate
interpreted
as
arousal.
This
interdisciplinary
study
presents
development
low-cost
amplifiers
refinement
algorithms
that
provide
recognition
wild.
We
describe
daily
spacing
undisturbed
territoriality,
although
heterogeneous
across
sampling
sites,
confirm
all
resident
robust
likely
associated
variations
water
temperature.
HIGHLIGHTS
Successful
pulse
type
G.
known
nocturnality
Residents
keep
diurnal
resting
sites
move
within
small
areas
during
night
The
arousal
residents
linked
temperature
peak
Language: Английский