There are primarily 6 species of commercially cultivated fishes in Kerala. Out of the 6, three are Indian carps (Catla, Rohu and Mrugal) and three are Chinese carps (silver carp, grass carp and common carp). The fishes of the family Cyprinidae, the largest fresh water fish family, are commonly called by the name carp. Though there are thousands of species in the family, colloquially, only the larger species are often called by the name carp.
These are commonly found in rivers in Kerala.
Scientific Name: Catla catla
Malayalam: catla, cutla
Name: Rohu carp
Scientific Name: Labeo rohita
Name: Indian mrigal carp
Scientific Name: Cirrhinus mrigala
Malayalam: mrigal, mrugal
Name: silver carp
Scientific Name: Hypophthalmichthys molitrix
Name: grass carp
Scientific Name: Ctenopharyngodon idella
Name: common carp
Scientific Name: Cyprinus carpio
The composite fish culture involving these 6 species is found to be highly profitable, according to researches. This methodologoy is becoming popular among the fish farmes nowadays. In composite fish culture the 6 species are stocked together in farms and ponds.
What is meant by Composite fish Culture?
In a pond, the surface is occupied by floating organisms like plankton, the column region with live and dead organic matter sunk from the surface, and the bottom with detritus or dead organic matter. The different trophic levels of a pond can be utilized for increasing the profitability of fish culture.