Question

Give the merits and demerits of fish culture?

Complete the crossword puzzle (Fig.15.2)

Read the following information and answer the questions based on information and related studied concepts. Animal protein for our meals can be found at low cost in fish. The finned real fish as well as invertebrates like prawns and molluscs are all produced as fish. Fish can be obtained in two different methods. One comes from catching fish, a type of natural resource. The other method is cultural fishery or fish farming. The fish's water source can be either fresh or saltwater, like those found in ponds and rivers. Fish can thus be caught or raised in freshwater and marine ecosystems for use in fishing. Fish are occasionally raised in water in paddy fields when a rice crop is also being cultivated there. Composite fish culture techniques enable more intense fish farming. In such systems, fish species which are both domestic and imported are utilised.