Environmental Engineering Reference
In-Depth Information
sustainability
required
Catch and/or
Biological,
Spatial distribution
Changes in spatial distribution
Causation of changes in hunter
effort in space
social,
of effort, catch and/or
of hunters may indicate a
effort distribution can be difficult to
financial
prey population
reaction to local depletion
ascertain—may not be depletion.
(e.g. through increase in
distance travelled or shifting
between areas).
Gear types used
Biological,
Changes in gear type
A component of effort—changes
Quite an indirect link to sustainability, needs
social,
and/or profitability
in gear type can cause changes in
data on costs and prices (giving profitability)
financial
selectivity between species/sizes
in order to interpret cause and effect.
and in harvester efficiency and
may relate to changes in
profitability, hence financial
sustainability.
Hunter household/
village
Number of
Social,
—
Indicates importance of
Does not inform about biological sustainability
hunters
financial,
harvesting to household/
without information on catch rates, nor in itself
biological
community.
does it inform on dependence on harvesting
for livelihoods.
Destination of
Social,
Trends in catch per unit
Proportion sold/gifted/eaten
Useful for interventions, not so informative
produce
financial
effort or population
and where sold to can inform
about sustainability. Can be supporting evidence
size
about commercialisation and
for changes in sustainability if trending
importance to household
over time.
and society.
