What is the composite fish culture? Give its two advantages. - Vidyadip

Question

What is the composite fish culture? Give its two advantages.

✓

Answer

In composite fish culture system a combination of five to six fishes is used in a single pond so that they do not compete for the food because of there different food habits. All the fishes depending on their food habits feed on different parts of the pond for.
Example: Silver carp is a surface feeder it feed on the surface of the pond, Rohu is a column feeder it feed on the middle portion of the pond and Common carp is a bottom feeder it feed on the bottom portion of the pond.
Advantages:

Fishes do not compete for the food they feed on different parts of the water body.
As five to six fishes are cultivated at the same time so it increases the fish yield.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Que-Ans (Each of 3 Mark )" from Improvement in Food Resources→Improvement in Food Resources — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

A bus starting from rest moves with a uniform acceleration of $0.1 m s ^{-2}$ for 2 minutes. Find:
a. the speed acquired.
b. the distance travelled.

An element $X$ has a mass number $= 37$ and it contains $17$ protons.

Write the symbolic representation of the element.
Find the number of neutrons and electrons in the element.
Write the electronic configuration of the element.

Give the differences between cytoplasm and nucleoplasm.

Categories the following under:

Poultry.
Livestock.
Fishery: Turkey, Prawns, Crabs, Cows, Fowls, Buffaloes.

i. The potential energy of a freely falling object decreases progressively. What happens to its
a. Kinetic energy,
b. total mechanical energy?
State the law on which your answer is based.
ii. A household consumes 1 kWh of energy per day. How much energy is this in joules?

Give four important functions of epithelial tissue. Name one specific place in the body where each function is carried out.

Ram's family was worried about heavy electricity bills to be paid. Their neighbour Mohan suggested some easy and effective steps to reduce the same. Next month's bill came as a relief to Ram, as the consumption of electricity had reduced by 50 units and so had the bill.
a. In what other aspects of life can this situation help?
b. What is the unit of energy?
c. Write any three steps that you think Mohan might have suggested to Ram.

What are the various types of cells of connective tissue?

You are provided with a fine white coloured powder which is either sugar or salt. How would you identify it without testing?

Abdul, while driving to school, computes the average speed for his trip to be $20km\ h^{−1}$. On his return trip along the same route, there is less traffic and the average speed is $30km\ h^{−1}$. What is the average speed for Abdul’s trip?