1. FISH STOCKING
Meaning
 Fisheries management technique
whereby a quantity of fish of chosen
species are released by humans into
a water body
Categories
1. Provide more fish for recreational
fishing and enough fishing
opportunities for anglers
 Type
- Put-grow-and-take stocking
Small fish(fry –
juvenile)release into the
waters
Fish survive on natural
foods
Take time to grow to a
size large enough to be
harvested
Objective: to maintain
enough fish in the stock
over long period
-
Put-and-take stocking
Large adult/sub-adult fish
are released into the
water
Recreational fisherman
can immediately catch
the fish
Objective: to provide
high-quality fishing
experience for
recreational anglers
2. Rehabilitate degraded fish stocks
 Objective
- To improve the status of
declining fish stocks
- To restore species diversity
to a degraded water
- To create a fish stock
 Types
- Enhancement stocking
Type of fish stocking that
is carried out to improve
the fish species diversity
Example: stocking tilapia
in lake to provide for
other fish
- Conservation stocking
Specialization form of fish
stocking designed to
maintain genetic diversity
of fish populations to
recover endangered fish
species
Problems
1. Overpopulations of the target fish
species
 This problem arise because
fisheries managers wrongly
believe that the species is under
populated
 In result it make fish in
competition among them for life
resource (food)
 There are just too many fish that
is being stocked in a water body
2. Fish populations imbalance
 There are just too many fish of
certain species and too few fish
of other species
 Poorly planned stocking can lead
some species to be
overpopulated or underpopulated