Name two finfishes, two crustaceans and two molluscs which are used for coastal aquaculture in India. Discuss the criteria for selecting a candidate species for aquaculture.

Describe the distribution of marine life in different zones of sea.

Differentiate between the following.

Microcoated diets and Microencapsulated diets for larvae

Integrated sea farming and Polyculture

Plankton and Nekton

Extensive and Intensive fish culture practices

Describe two important viral diseases of shrimps in culture. What steps need to be taken for control and prevention of these diseases

What is induced breeding How is it achieved in fishes?

Name the major units of a shrimp hatchery. What important steps should· be taken for managing a good hatchery system?

4. Write a brief account of nutritional requirements of brackish water fishes. Which raw ingredients can be used to meet these nutritional requirements?

Write in brief the various steps involved in the preparation of ponds for culture of shrimps after harvest of crops.

How is the quality of shrimp seed assessed before stocking?

Describe the natural process of pearl formation in oyster.

How are pearls cultured and graded for commercial purposes?

7. Write short notes on any two of the following:

Use of Artemia as live feed organism

Economic importance of sea-weeds

Animal adaptations in estuarine environment