RECOMMENDED
STEP-BY-STEP POND CONSTRUCTION
Recommended pond standards are
discussed below in relation to management and production potential and in
accordance with Department of Fisheries and Allied Aquacultures, Auburn
University, Alabama, USA.
POND LEVELS (DYKES)
The pond’s sides are called levees or
dykes. The pond levees should be well compacted and have a gentle slope. The
greater the degree of compaction, the stronger the levees will be. Thus, during
construction, one should lay down about 15 cm of soil which, when compacted
will become about 10 cm high. There should be no stumps or debris left within
the pond levees. Soil should be compacted shortly after it is laid to prevent
hardening (some soil become rock-like if they are allowed to harden). The level
of compaction achieved when constructing the pond levees affects pond
management and production as follows:
a.
Poorly compacted levees are weaker
and often collapse during the course of production when wind pushes the water
and causes waves to wash against the levees thus eroding them. When pond levees
collapse during the course of production:
Ø The
ponds become shallower which lowers the ponds’ carrying capacity.
Ø There
is increased siltation and clay turbidity which have a negative effect on water
quality for production.
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