Cage culture involves confining fish or shellfish in a mesh enclosure in open water ecosystems like reservoirs. It uses simple, locally available materials for construction making it economically sustainable. There are different types of cages including fixed, floating, submersible and submerged cages which can be made from durable and nontoxic materials like wood, steel or plastic. Proper site selection, stocking, feeding and maintenance are required steps for successful cage culture operations.

1. Design & Construction Of Cage Culture
System In Fisheries Faculty, BSMRAU.

2. What is Cage Culture?
Fish can be cultured in one of four
culture systems: ponds, raceways,
recirculating systems or cages. A cage
or net pen is a system that confines the
fish or shellfish in a mesh enclosure.

3. Why cage culture?
 Stocking with the right fish species, using seed of
appropriate size and introducing it at the right time
are essential to optimizing fish yield from
reservoirs.
 Cage culture is suitable to a wide range of open
freshwater ecosystems, especially reservoirs.
 It uses simple technology and locally available
resources for cage construction and operation,
making it economically, socially and
environmentally sound.
 Obviously, It is a huge source to income money.

4. Types of Cages
i. Fixed Cage
ii. Floating Cage
iii. Submersible Cage
iv. Submerged Cage

5. Material Selection for Cages
Common Materials for Cage Construction
Wood
Steel
Plastic

6. Material Selection for Cages
 Durable
 Nontoxic
 Rust Proof
 Elastic
Wooden Cage

7. Cage Culture Practices Overseas

15. Steps of Cage Culture
 Types of cage
 Site selection
 Procurement of cage materials
 Frame fabrication
 Floating the frame
 Fitting the catwalk
 Installation of cages
 Selection of stocking materials
 Stocking
 Grow-out period
 Supplementary Feeding
 Cage and stock maintenance
 Removal and release
 Economics of cage culture
 Cost of production of each crop