- A Three species; specifically chosen to maximize overall genetic diversity within the pond
- B Five to six species; to utilize all food resources in different water zones simultaneously
- C Two species; deliberately chosen to allow competitive exclusion of the weaker species over time
- D Eight species; stocked mainly to increase species richness for general ecosystem stability
Correct answer: B. Five to six species; to utilize all food resources in different water zones simultaneously
Explanation: Composite fish culture typically uses five to six compatible species (e.g., Catla, Rohu, Mrigal, common carp, silver carp, grass carp) to utilize all food resources across different zones of the water body simultaneously, maximizing production without interspecific competition.
Concept context
Learn about animal husbandry, plant breeding, tissue culture, biofortification, and single cell protein.
Read the full Strategies for Enhancement in Food Production notes →