What is composite fish culture? Mention its two advantages. [3 MARKS]
Definition: 1 Mark
Each point: 1 Mark
Composite fish culture is a method in which five or six different species are grown together in a single fish pond.
Two advantages are
1. Fishes with different food habitats are chosen thus ensuring a complete utilization of food resources in the pond and no competition for food resource.
2. Survival rate and yield of fish increases.