It is an application of the same valve
principle as that used in the trap first described above.
A larger trap is the KILONG, which is used in the lower reaches of the
rivers and also on the coast. It consists of a fence of stakes running
out from the bank or shore into water some two fathoms in depth. The
free end of the fence is wound in a spiral of about two turns. One
or two gates are made between the outer and the inner chambers of
the spiral on the side nearest to the bank or shore, and are left
open when the trap is set. The fish, finding themselves confined by
the fence, make for deeper water, and, entering the central chamber,
do not readily return. The fisherman then closes the gate and takes
out the fish with a landing net.
A prawn trap consists of a cylinder of heavy bark. One end is closed
with a conical valve of bamboo strips like that of the two traps
described above; the other flattened end is hinged to open for the
extraction of the catch. The trap is baited with decaying cocoanut and
thrown into the river with a long rattan attached to it and tied to
a pole; the trap sinks to the bottom and is examined from time to time.
Tuba Fishing
Fish are caught on the largest scale by poisoning the water with
the juice of the root of the tuba plant.
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