Fisheries and Aquaculture
Telangana Open School (TOSS) · Class 12 · Biology
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What is meant by 'fisheries'?
Answer
Fisheries refer to areas where fish and other aquatic organisms like prawns, crabs, and molluscs are reared, bred, and caught commercially. These can be natural or artificial water bodies used for lar…
Name the three main types of fisheries based on water type.
Answer
The three main types of fisheries are: (1) Freshwater fisheries (rivers, lakes, ponds), (2) Estuarine or brackish water fisheries (estuaries, lagoons), and (3) Marine fisheries (seacoasts and oceans).
Give two examples of freshwater fish found in India.
Answer
Two common freshwater fish in India are Rohu (Labeo rohita) and Catla (Catla catla). These are widely cultivated in rivers, lakes, and artificial ponds.
Where are estuarine fisheries commonly found in India?
Answer
Estuarine fisheries are commonly found in Bengal and Kerala, especially in backwaters, lagoons, and delta regions where river and sea water mix.
Name two important estuarine fish species.
Answer
Two important estuarine fish species are Pearl Spot and Milkfish. They thrive in brackish water environments like lagoons and coastal lakes.
List four major marine fish varieties in India.
Answer
Four major marine fish varieties are Mackerel, Sardine, Shark, and Catfish. These are caught along the Indian coastline, especially on the west coast.
Why is fish considered a protective food?
Answer
Fish is rich in high-quality proteins, vitamins (especially A and D), and essential minerals. Its nutrients are easily digestible, making it a protective food that supports health and prevents deficie…
What are the medicinal uses of fish?
Answer
Fish liver oil is a natural source of vitamins A and D. It is used to treat deficiencies like night blindness and rickets, especially in children and elderly people.
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