What do you understand by composite fish culture? - Science

Answer in Brief

What do you understand by composite fish culture?



The practice of culturing a combination of five or six species of fish in a single fish pond is termed composite fish culture. The selection of several species of fish for culturing in a pond helps to enhance yield with the same cost and to utilise most of the available food in the water reservoir.
Fishes are selected on the basis of the following characteristics.

  1. The selected species are fast-growing. For example, when common Indian carps (rohu, catla and mrigal) and exotic carps (silver carp, grass carp and common carp) are selected for culturing, they give 8-9 times more yield.
  2. The fishes selected should not compete with each other for space and nutrition. They should live in distinct zones inside the pond. For example, catla and silver carp live mostly in the surface zone, rohu and grass carp live in the middle zone and mrigal and common carp live at the bottom.
  3. The feeding habits of the species selected should be distinct. For example, silver carp feeds on phytoplankton, Catla feeds on zooplanktons, rohu and mrigal feed on decaying plants and detritus, grass carp feeds on aquatic plants and weeds. Thus, they can be grown together.
    Composite fish farming is advantageous, economical and profitable from a business point of view.
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Chapter 15: Improvement In Food Resources - Long Answer Questions [Page 91]


NCERT Exemplar Science Class 9
Chapter 15 Improvement In Food Resources
Long Answer Questions | Q 41. | Page 91


What are the advantages of composite fish culture?

How do you differentiate between capture fishing, mariculture and aquaculture?

What are the advantages of composite fish culture?

How do you differentiate between capture fisheries, inland fisheries and aquaculture?

Give the economic importance of fishery.

Describe various methods of fish preservation.

The production and management of fish is called ______.

All of the following are marine fish EXCEPT

Find out the wrong statement from the following

Which one of the following fish is a surface feeder?

Preventive and control measures adopted for the storage of grains include

Farming without the use of chemicals such as fertilizers, herbicides and pesticides is known as ______.

Differentiate between the following

Capture fishery and Culture fishery

Give the merits and demerits of fish culture?

Management and rearing of fishes only is called as:

What type of cartilage forms the whole of the adult skeleton of cartilaginous fishes?

Which one is not produced in aquaculture?

Air-breathing fishes are cultured in ______ water.

Central Marine Fisheries Research Institute (CMFRI) is situated at ______.

The longest marine water prawn is ______.

PUFA stands for ______.

______ culture is the oldest and most traditional method of prawn culture practiced in Kerala.

Fish meal is used as feed for cattle and poultry farming animals.

Define the following.


Blue revolution is related with ______.

Differentiate Extensive and Intensive Fish culture.

What is the nutritional importance of fish liver oils? Name any two marine fishes which yield these oils.

Which one of the following is a marine fish?

What is aquaculture? Give example of an animal that can be multiplied by aquaculture.

Differentiate between pisciculture and aquaculture.

Explain the concept of the Blue Revolution.

Name the following:

Transgenic fish.


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