A Review of Factors Potentially Contributing to the Long-Term Decline of Atlantic Salmon in the Conne River, Newfoundland, Canada
Reviews in Fisheries Science & Aquaculture,
Journal Year:
2024,
Volume and Issue:
32(3), P. 479 - 504
Published: April 18, 2024
Species
extinction
and
population
extirpation
are
now
widespread
across
aquatic
ecosystems
with
many
diadromous
species,
including
Atlantic
salmon
(Salmo
salar),
in
decline
throughout
much
of
the
North
Atlantic.
Declines
can
occur
simultaneously
at
both
large
small
regional
scales
rendering
factors
driving
decreases
more
elusive.
On
south
coast
Newfoundland
abundance
Conne
River
fell
by
92%
over
a
period
almost
four
decades
contrast
most
other
populations
region
suggesting
local
may
be
contributing
to
decline.
Here
potentially
long-term
reviewed
(1)
examining
trends
survival
different
life
stages,
(2)
presenting
synopsis
on
presence
absence
impacting
productivity
this
population,
(3)
using
semi-quantitative
two
dimensional
classification
system,
based
expert
opinion,
rank
decline,
(4)
utilizing
quantitative
Random
Forest
analysis
complement
opinion
approach
identifying
possibly
affecting
population.
Results
from
qualitative
analyses
identified
associated
aquaculture
as
possible
driver
Additional
include
influence
climate
change
predation
freshwater
marine
habitats.
As
various
native
range
extirpation,
results
further
highlight
necessity
river-specific
addition
monitoring
fine-scale
demographic
threat
information
prioritization
research
necessary
for
conserving
or
restoring
endangered
populations.
Language: Английский
Tools for assessing recreational fisheries compliance—an underappreciated yet essential component of management
Reviews in Fish Biology and Fisheries,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 3, 2024
Abstract
Despite
extensive
research
on
the
importance
and
impacts
of
recreational
fisheries,
there
is
a
shortage
information
regulatory
compliance
in
sector.
While
fishing
has
economic
social
benefits,
risks
to
ecosystem
health
resource
sharing
are
exacerbated
by
non-compliance
with
regulations.
This
manuscript
explores
methodologies
employed
for
assessing
fisheries
provide
recommendations
best
practices
understanding
non-compliance.
Using
EBSCOhost
database
searches
keywords
pertaining
compliance,
total
558
studies
were
reviewed.
Of
these,
only
49
specifically
examined
fisheries.
A
broad
range
methods
have
been
used
assess
including
surveys,
observations,
law
enforcement
records
analysis,
netnography,
self-reporting,
modelling,
forensic
investigations.
these
methods,
although
costly,
suitable
estimating
various
facets
most
detailed
data.
other
such
as
records,
netnography
indirect
observation,
more
cost-effective,
they
limited
detecting
presence
some
types
should
be
initially
determine
if
may
exist
fishery.
Understanding
dynamics
essential
formulating
effective
management
strategies,
which
aim
mitigate
adverse
ecosystems
while
maximising
its
socio-economic
advantages.
It
advisable
individuals
interested
comprehending
within
specific
fishery
first
employ
capable
ascertaining
existence
Subsequently,
implement
gather
extent
underlying
factors
contributing
non-compliance,
through
surveys
utilising
questioning
techniques.
Ultimately,
this
study
advocates
enhanced
efforts
from
researchers
it
poses
significant
threat
sustainability
Language: Английский