Polycyclic
aromatic
hydrocarbons
(PAHs)
are
ubiquitous
environmental
toxicants
found
in
anthropogenic
mixtures
such
as
crude
oil,
air
pollution,
vehicle
exhaust,
and
some
natural
combustion
reactions.
Single
PAHs
benzo[a]pyrene
(BaP)
also
impact
fish
behavior
when
animals
exposed
early
life
stages
for
short
periods
of
time.
Aquatic
may
encounter
BaP
through
road
runoff
oil
spills,
but
few
studies
have
examined
the
aqueous
exposure
on
adult
fish,
fewer
resulting
fitness-relevant
behavioral
consequences
PAH
their
long-term
persistence.
This
dissertation
targets
this
gap
literature
by
examining
how
to
influences
anxiety-like
behavior,
learning,
memory
zebrafish,
parental
mixture,
combined
with
hypoxia
affects
social
exploratory
unexposed
larval
zebrafish.
We
that
learning
were
not
affected
24
hour
BaP,
was
minimally
affected,
locomotor
parameters
distance
moved
times
spent
darting
immobile
states
significantly
altered
BaP.
Additionally,
we
decreased
velocity.
detergent
COREXIT
influence
a
monolayer
mouse
endothelial
cells,
an
vitro
blood-brain
barrier
(BBB)
model.
particular
caused
significant
damage
both
mammal
BBB
models,
is
one
potential
mechanism
which
neural
integrity
be
influenced.
Understanding
these
brains
will
give
insight
into
populations
explore
interact
environment
predators,
interactions
persist
even
no
longer
present.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
283, P. 116848 - 116848
Published: Aug. 7, 2024
This
comprehensive
review
articulates
critical
insights
into
the
nexus
of
environmental
stressors
and
their
health
impacts
across
diverse
species,
underscoring
significant
findings
that
reveal
profound
effects
on
both
wildlife
human
systems.
Central
to
our
examination
is
role
pollutants,
climate
variables,
pathogens
in
contributing
complex
disease
dynamics
physiological
disruptions,
with
particular
emphasis
immune
endocrine
functions.
research
brings
light
emerging
evidence
severe
implications
pressures
a
variety
taxa,
including
predatory
mammals,
raptorial
birds,
seabirds,
fish,
humans,
which
are
pivotal
as
indicators
broader
ecosystem
stability.
We
delve
nuanced
interplay
between
degradation
zoonotic
diseases,
highlighting
novel
intersections
pose
risks
biodiversity
populations.
The
critically
evaluates
current
methodologies
advances
understanding
morphological,
histopathological,
biochemical
responses
these
organisms
stressors.
discuss
for
conservation
strategies,
advocating
more
integrated
approach
incorporates
zoonoses
pollution
control.
synthesis
not
only
contributes
academic
discourse
but
also
aims
influence
policy
by
aligning
Global
Goals
Sustainable
Development.
It
underscores
urgent
need
sustainable
interactions
humans
environments,
preserving
ensuring
global
security.
By
presenting
detailed
analysis
interdependencies
biological
health,
this
highlights
gaps
provides
foundation
future
studies
aimed
at
mitigating
pressing
issues.
Our
study
it
proposes
integrative
actionable
strategies
address
challenges
intersection
change
public
marking
crucial
step
forward
planetary
science.
Biology Letters,
Journal Year:
2024,
Volume and Issue:
20(7)
Published: July 1, 2024
Urban
stream
syndrome
alters
habitat
complexity.
We
define
complexity
as
the
degree
of
variation
in
physical
structure,
with
increasing
equating
to
higher
Habitat
affects
species
composition
and
shapes
animal
ecology,
physiology,
behaviour
cognition.
used
a
delayed
detour
test
measure
whether
cognitive
processes
(motor
self-regulation)
(risk-taking)
female
Western
mosquitofish,
Gambusia
affinis,
varied
structural
(low,
moderate
high)
that
was
quantified
visually
for
nine
populations.
predicted
motor
self-regulation
risk-taking
would
increase
complexity,
yet
we
found
support
opposite.
Lower
habitats
offer
less
refuge
potentially
leading
predation
pressure
selecting
greater
by
fish
self-regulation.
Our
findings
provide
insight
into
how
can
shape
offers
broader
understanding
why
some
may
tolerate
conditions
urbanized
environments.
Animals,
Journal Year:
2025,
Volume and Issue:
15(4), P. 557 - 557
Published: Feb. 14, 2025
This
study
evaluated
the
habitat
coloration
preferences
of
Siniperca
chuatsi
and
Cirrhinus
molitorella
in
both
solitary
(n
=
1)
group
3)
settings
across
six
colors.
The
results
indicated
that
individual
S.
spent
majority
their
time
made
frequent
visits
to
black
area,
followed
by
blue
area.
While
C.
region,
groups
showed
a
preference
for
white
regions.
These
findings
highlight
distinct
different
states,
suggesting
has
an
important
effect
on
fish
behavior
environmental
adaptation.
From
behavioral
ecology
perspective,
these
may
be
closely
related
survival
strategies
fish.
Notably,
molitorella's
strong
backgrounds
reflect
anti-predator
behavior,
helping
avoid
predators,
such
as
chuatsi,
natural
environments,
thereby
improving
its
chances
survival.
provides
scientific
basis
optimizing
aquaculture
emphasizing
importance
considering
substrate
type
designing
environments
enhance
welfare.
Cold Spring Harbor Perspectives in Biology,
Journal Year:
2023,
Volume and Issue:
15(12), P. a041455 - a041455
Published: Oct. 3, 2023
Murielle
Ålund1,17,
Meredith
Cenzer2,17,
Nicolas
Bierne3,
Janette
W.
Boughman4,
José
Cerca5,
Mattheau
S.
Comerford6,
Alessandro
Culicchi7,
Brian
Langerhans8,
Eryn
McFarlane9,10,
Markus
H.
Möst11,
Henry
North12,
Anna
Qvarnström13,
Mark
Ravinet14,
Richard
Svanbäck15
and
Scott
A.
Taylor16
1Department
of
Ecology
Genetics,
Animal
Ecology,
Uppsala
University,
75236,
Sweden
2Department
Evolution,
University
Chicago,
Illinois
60637,
USA
3ISEM,
Université
de
Montpellier,
CNRS,
IRD,
Montpellier
34095,
France
4Department
Integrative
Biology,
Michigan
State
East
Lansing,
48824,
5CEES
-
Centre
for
Ecological
Evolutionary
Synthesis,
Department
Biosciences,
Oslo,
Oslo
0316,
Norway
6Biology
Department,
UMass
Boston,
Massachusetts
02125,
7Department
8Department
Biological
Sciences,
North
Carolina
Raleigh,
27695,
9Department
Botany,
Wyoming,
Laramie,
Wyoming
82071,
10Department
York
Toronto,
Ontario
M3J
1P3,
Canada
11Research
Limnology,
Innsbruck,
Innsbruck
6020,
Austria
12Department
Zoology,
Cambridge,
Cambridge
CB2
3EJ,
United
Kingdom
13Department
14School
Life
Nottingham,
Park,
Nottingham
NG7
2RD,
15Department
16Department
Colorado
Boulder,
80309,
Correspondence:
murielle.alund{at}ebc.uu.se;
mlcenzer{at}ucdavis.edu
↵17
Co-first
authors
contributed
equally
to
this
work;
all
other
listed
alphabetically.
Ecology and Evolution,
Journal Year:
2023,
Volume and Issue:
13(9)
Published: Sept. 1, 2023
In
response
to
uncertain
risks,
prey
may
rely
on
neophobic
phenotypes
reduce
the
costs
associated
with
lack
of
information
regarding
local
conditions.
Neophobia
has
been
shown
be
driven
by
reliability,
ambient
risk
and
predator
diversity,
all
which
shape
uncertainty
risk.
We
similarly
expect
environmental
conditions
interfering
availability.
order
test
how
variables
might
responses
in
Trinidadian
guppies
(
Environmental Toxicology and Chemistry,
Journal Year:
2024,
Volume and Issue:
43(11), P. 2252 - 2273
Published: May 27, 2024
Pharmaceuticals
in
aquatic
environments
pose
threats
to
organisms
because
of
their
continuous
release
and
potential
accumulation.
Monitoring
methods
for
these
contaminants
are
inadequate,
with
targeted
analyses
falling
short
assessing
water
quality's
impact
on
biota.
The
present
study
advocates
integrated
strategies
combining
suspect
chemical
molecular
biomarker
approaches
better
understand
the
risks
posed
by
complex
mixtures
nontarget
organisms.
research
aimed
integrate
analysis
transcriptome
changes
fathead
minnows
prioritize
contaminants,
assess
effects,
apply
this
strategy
Wascana
Creek,
Canada.
Analysis
revealed
higher
pharmaceutical
concentrations
downstream
a
wastewater-treatment
plant,
clozapine
being
most
abundant
minnows,
showing
notable
bioavailability
from
sediment
sources.
Considering
importance
bioaccumulation
factor
biota-sediment
accumulation
risk
assessment,
coefficients
were
calculated
based
field
data
collected
during
spring,
summer,
fall
seasons
2021.
Bioaccumulation
was
classified
as
very
bioaccumulative
values
>5000
L
kg
Ecology and Evolution,
Journal Year:
2022,
Volume and Issue:
12(5)
Published: May 1, 2022
Abstract
Cannibalism,
the
act
of
preying
on
and
consuming
a
conspecific,
is
taxonomically
widespread,
putatively
important
in
wild,
particularly
teleost
fishes.
Nonetheless,
most
studies
cannibalism
fishes
have
been
performed
laboratory.
Here,
we
test
four
predictions
for
evolution
by
conducting
one
largest
assessments
wild
to
date
coupled
with
mesocosm
experiment.
Focusing
mosquitofishes
guppies,
examined
17
species
(11,946
individuals)
across
189
populations
spanning
both
native
invasive
ranges
including
disparate
types
habitats.
We
found
be
quite
rare
wild:
showed
no
evidence
cannibalism,
prevalence
was
typically
less
than
5%
within
when
it
occurred.
Most
victims
were
juveniles
(94%;
only
half
these
appeared
newborn
offspring),
remaining
6%
being
adult
males.
Females
exhibited
more
males,
but
this
partially
explained
their
larger
body
size,
suggesting
greater
energetic
requirements
reproduction
likely
play
role
as
well.
that
dispersal‐limited
environments
had
lower
higher
conspecific
densities,
intense
resource
competition
drives
cannibalistic
behavior.
Supporting
conclusion,
our
experiment
revealed
increased
density
levels
not
associated
juvenile
or
strongly
influenced
predation
risk.
suggest
livebearing
because
conspecifics
energetically
costly
becomes
worth
effort
other
food
intense.
Due
artificially
reduced
cost
capturing
confined
spaces,
captive
settings
can
much
frequent.
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: Nov. 29, 2022
Climate
change
and
biological
invasions
are
two
of
the
major
threats
to
biodiversity.
They
could
act
synergistically
detriment
natives
as
non-native
species
may
be
more
plastic
resilient
when
facing
changing
environments.
The
twoline
skiffia
(Skiffia
bilineata)
is
an
endangered
Mexican
topminnow
that
cohabits
with
invasive
guppies
(Poecilia
reticulata)
in
some
areas
central
Mexico.
Guppies
have
been
found
take
advantage
from
associating
considered
partially
responsible
for
decline
its
populations.
Refuge
use
exploratory
behaviours
trade-offs
between
being
safe
unknown
opportunity
explore
novel
search
better
resources
or
disperse.
aim
this
study
investigate
how
a
temperature
affects
refuge
both
species.
We
skiffias,
swimming
activity
Skiffias
explored
rock
than
regardless
scenario.
Also,
smaller
fish
spent
time
performing
bigger
ones.
Our
first
test
effect
on
behaviour
goodeid
species,
our
results
contribute
idea
affected
by
climate
invaders.
Journal of Evolutionary Biology,
Journal Year:
2021,
Volume and Issue:
34(10), P. 1554 - 1567
Published: Aug. 31, 2021
Abstract
Predation
risk
is
often
invoked
to
explain
variation
in
stress
responses.
Yet,
the
answers
several
key
questions
remain
elusive,
including
following:
(1)
how
predation
influences
evolution
of
phenotypes,
(2)
relative
importance
environmental
versus
genetic
factors
reactivity
and
(3)
sexual
dimorphism
physiology.
To
address
these
questions,
we
explored
(ventilation
frequency)
a
post‐Pleistocene
radiation
live‐bearing
fish,
where
Bahamas
mosquitofish
(
Gambusia
hubbsi
)
inhabit
isolated
blue
holes
that
differ
risk.
Individuals
populations
coexisting
with
predators
exhibited
similar,
relatively
low
as
compared
low‐predation
populations.
We
suggest
this
dampened
has
evolved
reduce
energy
expenditure
environments
frequent
intense
stressors,
such
piscivorous
fish.
Importantly,
magnitude
responses
by
fish
from
high‐predation
sites
wild
changed
very
little
after
two
generations
laboratory
rearing
absence
predators.
By
comparison,
greater
among‐population
larger
changes
subsequent
rearing.
These
appear
have
more
lower
food
availability.
Moreover,
females
showed
ventilation
frequency,
was
stronger
This
may
reflect
premium
placed
on
efficiency
females,
especially
under
show
higher
fecundities.
Altogether,
demonstrating
parallel
adaptive
divergence
reactivity,
highlight
energetic
trade‐offs
mould
vertebrate
response
varying
resource
Journal of Evolutionary Biology,
Journal Year:
2022,
Volume and Issue:
35(7), P. 973 - 985
Published: May 25, 2022
Abstract
The
astonishing
diversity
of
brain
sizes
observed
across
the
animal
kingdom
is
typically
explained
in
context
trade‐offs:
benefits
a
larger
brain,
such
as
enhanced
cognitive
ability,
are
balanced
against
potential
costs,
increased
energetic
demands.
Several
hypotheses
have
been
formulated
this
framework,
placing
different
emphasis
on
ecological,
behavioural,
or
physiological
aspects
trade‐offs
size
evolution.
Within
body
work,
there
exists
considerable
taxonomic
bias
towards
studies
birds
and
mammals,
leaving
some
uncertainty
about
generality
respective
arguments.
Here,
we
test
three
most
prominent
hypotheses,
‘expensive
tissue’,
‘social
brain’
‘cognitive
buffer’
large
dataset
fishes,
derived
from
publicly
available
resource
(FishBase).
In
accordance
with
predictions
tissue’
hypothesis,
brains
co‐occur
reduced
fecundity
sociality
at
least
Classes
fish.
Contrary
to
expectations,
however,
lifespan
large‐brained
tendency
for
species
that
perform
parental
care
smaller
brains.
As
such,
it
appears
costs
(reduced
fecundity)
(increased
sociality)
near
universal
vertebrates,
whereas
others
more
lineage‐specific
effects.
We
discuss
our
findings
fundamental
differences
between
classically
studied
mammals
fishes
analyse
here,
namely
divergent
patterns
growth,
parenting
neurogenesis.
work
highlights
need
taxonomically
diverse
approach
any
question
evolutionary
biology.