31 January 2008

How to build floating cage

Membuat keramba jaring apung. Floating cage is pond for cultivating fingerling to consumtion, or brood. It’s contructed by net bag, by 7 m in length, 7 m in wide, and 2 m in high. The mess of net is 0,5 – 1 cm, or smaller than fish size.

The floating cage placed in the lakes, or reservoir with 14 – 20 floater. A group of floating cage are four ponds, and every pond has two levels, above level, and bellow levels. The whole of a group of floating cage is sacked by the bigest net bag.

Floating cage are 8 parts, these are frame, floater, bridge, anchor, net, worker house, and ware house. Frame is principal part of the floating cage, and made around the floating cage.

As principal part, frame has to strong. Except frame, the all of parts seted, and place there. Whereas frame has to made by strong materials, like iron, bamboo, and wood.

Frame is made in the ground before placed in the water, by rectangular in shape. Every line have two stem irons, or bamboos, or woods. It’s place to lay bridge, and setted floater.

Floater made by plactis drums, or iron drums. Plastic is better than iron drum, because water proof. Floater setted bellow frame. Every line has 4 – 5 drums. So, in a pond setted 14 – 20 drums.

Bridges made above frame. It’s also has to strong, because will be used as walking place of the people when fishes stocking, giving artificial feed, and harvest yield. Bridges made by bamboo stems, pieces tick woods.

Anchors made by mix sands, gravels, and cements, or also made by irons. Anchors banded by line, and deeped to bootom of lakes. Other side of line banded to frame. Anchor functed by standing floating cage, so that move to other areas.

Worker house made in the central of floating cage, like a house peoples, but size is small. It functed as life place workers. Beside of the workwr house, made ware house for saving artificial feeds.

Net placed in every pond, by banding fourth its line to frame. After placing, net given pressurer by mix sands, gravels, and cement so that deep. One of line banded to frame. If it has deep, floating cage ready to use.