|Better Farming Series 38 - Better Freshwater Fish Farming: Raising Fish in Pens and Cages (FAO, 1990, 83 p.)|
108. After you have harvested, clean and repair your pen as quickly as you can so that you can begin again. You must
· cut the weeds and grass on the
· clear out most of the plants in the water and take away all rubbish
· clean and repair the fence and make sure that it is still buried in the pen bottom
· remove unwanted fish, crabs and any other water life using a fine- mesh net.
109. If you have harvested using a large- mesh seine net there will be many baby fish left in your pen.
110. So, to begin again you will not need to put in more baby fish. However, you will have to be careful not to let the baby fish escape when you clean and repair the pen.
111. If you have harvested using a fine- mesh seine net you will catch all of the baby fish.
112. You can hold the baby fish that you catch in a pen or in a cage for small fish (see Item 114 and Item 184) until you have finished cleaning and repairing the pen.
Hold the baby fish in a pen or cage
The faster you can do all of these things, the sooner you will be able to raise another crop of fish.
113. When you are ready, put in two baby fish 8 to 10 centimetres long for each square metre of pen. However, be sure to choose your biggest and best baby fish to put back into your pen.