Class 9 Science Chapter 15 CBSE NCERT Textbooks
Important NCERT Questions
Improvements in Food Resources
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-213
Questions No-1
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Fish can be obtained through various methods, including wild capture through fishing and aquaculture or fish farming. Wild capture involves harvesting fish from their natural habitats, such as oceans, rivers, lakes, and ponds, using techniques like trawling, seining, or angling. This method has been practiced for centuries, and it supports global fisheries that contribute significantly to the world’s seafood supply. However, overfishing and unsustainable practices have raised concerns about the depletion of fish stocks and the impact on marine ecosystems.
Aquaculture, or fish farming, is another method of obtaining fish. This involves raising fish in controlled environments like ponds, tanks, or ocean pens. Aquaculture has become increasingly important in meeting the growing demand for seafood while addressing concerns about overfishing. It allows for the controlled production of various fish species, providing a more sustainable and efficient way to obtain fish. Fish farming also enables the implementation of responsible practices to minimize environmental impact and ensure the health and quality of the fish produced.
There are two methods of obtaining fish. One method is capture fishing in which the fish are obtained from natural resources such as fresh water resources (i.e., canals, pools, reservoirs and rivers), brackish water resources (i.e., estuaries and lagoons) and marine fishery resources (i.e.’, coastline and deep seas)’ The other method is by fish farming (or culture farming), which is concerned with culturing, feeding, breeding and fish production. Fish farming is based on aquaculture which pertains to production of useful aquatic plants and animals such as fishes, prawns, crayfish, lobsters, crabs, shrimps, mussels, oysters and seaweeds by proper utilisation of available waters in the country. Aquaculture includes Mari culture and freshwater culture fisheries.
There are two ways of obtaining fish. One is from natural resources, which is called capture fishing. The other way is by fish farming, which is called culture fishery.
Fish can be obtained by two ways:
(i) Capture fishing: It is the process of obtaining fish from natural resources.
(ii) Culture fishery: It is the practice of farming fishes. Farming can be done in both fresh
water ecosystem (which includes river water, pond water) and marine ecosystem.
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