Better Farming Series 38 - Better Freshwater Fish Farming: Raising Fish in Pens and Cages (FAO, 1990, 83 p.): Cages: Harvesting fish in cages

Better Farming Series 38 - Better Freshwater Fish Farming: Raising Fish in Pens and Cages (FAO, 1990, 83 p.)

(introduction...)

Preface

Introduction

Raising fish in pens and cages

The baby fish

Pens

(introduction...)

Building a pen

Carrying small fish

Putting baby fish into your pen

Feeding fish in pens

Taking care of the fish and pen

Harvesting fish in pens

Now you must begin again

Raising your own baby fish in pens

Cages

(introduction...)

Building a cage

Carrying small fish

Putting baby fish into your cage

Feeding fish in cages

Taking care of the fish and cage

Harvesting fish in cages

Now you must begin again

Raising your own baby fish in cages

Harvesting fish in cages

174. If you have used baby fish 8 to 10 centimeters long or weighing about 15 to 20 grams and have fed them well, they will be ready for harvest in about five months. At this time the fish will weigh 100 to 150 grams each.

175. If you want to harvest only some of your fish, use a small hand net and collect what you want without moving the cage.

collect what fish you want without moving the cage

176. If you want to harvest all of your fish and your cage is small enough, pull it into shallow water and begin to collect the fish using a small hand net.

collect some of the fish after moving the cage to shallow water

177. When you have collected most of the fish, you can lift the cage out of the water and collect the rest.

then, collect the rest of the fish after moving the cage out of the water

178. If your cage is too big to lift out of the water, pull it into shallow water as far as you can and collect the remaining fish.

if your cage is too big you may have to collect all of the fish in shallow water

Note If you do not need all of your fish, harvest only what you need and leave the rest in the cage. Fish can be left in a cage as long as you continue to feed them.