Describe various methods of fish preservation. - Biology

Answer in Brief

Describe various methods of fish preservation.



After catching the fishes, fish spoilage is prevented by different preservation methods like:

  1. Chilling with ice: It is a method of refrigeration. Due to the lowering of temperature, putrefaction is prevented and the quality of fish is maintained.
  2. Freezing: Freezing of fishes helps to retain the natural appearance of fishes.
  3. Freeze drying: Fishes are frozen and dried.
  4. Smoke drying: This removes the moisture and prevents the growth of bacteria.
  5. Sun-drying: Fishes are dried in sun to remove moisture.
  6. Salting: By adding salt, dehydration takes place by osmosis.
  7. Canning: Fishes are preserved in cans with salt or other artificial preservatives.
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Chapter 11: Enhancement of Food Production - Exercises [Page 271]


Balbharati Biology 12th Standard HSC for Maharashtra State Board
Chapter 11 Enhancement of Food Production
Exercises | Q 4.3 | Page 271


What are the advantages of composite fish culture?

Mention four advantages of fishery.

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.

Give an account of different types of fish ponds used for rearing fishes.

All of the following are marine fish EXCEPT

Find out the wrong statement from the following

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?

What do you understand by composite 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.

Culture of fishes along with Agricultural crops is known as ______.

Earthworms are sacred – This statement was made by  ______.

The eggs released by the female fish are fertilized by the sperm and fertilized eggs float in water as ______.

The hatching period in Hatchling pits is ______.

PUFA stands for ______.

Define the following.


Blue revolution is related with ______.

Differentiate Extensive and Intensive Fish culture.

Enumerate the nutritional values of prawns.

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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