Marine Fisheries

Q. What is pisciculture ?

Q. Which of the following are marine fishes ?

1. Pomphret
2. Rohu
3. Mackerel
4. Catla

Q.

What are the advantage and disadvantage of composite fish culture

Q.

How do you differentiate between capture fishing, mariculture and aquaculture? [3 MARKS]

Q.

Differentiate between the following Capture fishery and Culture fishery.

Q. Write one advantage and one problem of composite fish culture.

Q. Which of the following is not an edible marine fish?

1. Hilsa
2. Pomfret
3. Salmon
4. $Labeo$ $rohita$

Q. (a) A Student visited a fish farm where he found catla, rohu, mrigals, common carps and grass carps cultured in the same pond. Name the type of fish farming observed by the student.
(b) Mention the advantages of such farming system.
(c) What is the main problem in such fish farming? How do farmers overcome by such problem?

Q.

Rohu, Catla and hilsa are types of which of the following?

Q.

Name one fresh water and one marine fish of India.

Q.

Name two marine fishes of India.

Q.

Give the merits and demerits of fish culture.

Q. How does Bombay duck differ from common carp ?

Q.

Question 18
Match the column A with the column B

$\begin{array}{cc}\left(A\right)& \left(B\right)\\ \left(a\right)\text{Catla}& \left(i\right)\text{Bottom feeders}\\ \left(b\right)\text{Rohu}& \left(ii\right)\text{Surface feeders}\\ \left(c\right)\text{Mrigal}& \left(iii\right)\text{Middle-zone feeders}\\ \left(d\right)\text{Fish farming}& \left(iv\right)\text{Culture fishery}\end{array}$

Q.

Farming of marine fishes is called as _________ and farming of inland fishes is called as __________ .

1. mariculture, aquaculture

2. mariculture, sericulture

3. sericulture, fish farming

4. apiculture, vermiculture

Q.

Name two other sea food items except fish.

Q. What happens to freshwater fish in seawater and why???

Q. Farming of marine fishes is called as .

1. mariculture
2. aquaculture
3. sericulture

Q.

Define polyculture.

Q. Question 18
Match the column A with the column B
$\begin{array}{cc}\left(A\right)& \left(B\right)\\ \left(a\right)Catla& \left(i\right)Bottomfeeders\\ \left(b\right)Rohu& \left(ii\right)Surfacefeeders\\ \left(c\right)Mrigal& \left(iii\right)Middle-zonefeeders\\ \left(d\right)Fishfarming& \left(iv\right)Culturefishery\end{array}$

Q. Inland fisheries refer to

1. Fishing inside pool
2. Fishing in island
3. Fish in culture pond
4. Fishing in River

Q. ____________ are bottom dwelling fresh water fishes used in composite fish farming.

1. Mrigal
2. Catla
3. Rohu
4. Common carp

Q.

What are the different types of fishery?

Q.

Why does the increased level of nutrients in the water affect the survival of aquatic organisms?

Q.

Question 14
Which one of the following fishes is a surface feeder?

(a) Rohus
(b) Mrigals
(c) Common carps
(d) Catlas

Q.

What are the different types of methods to obtain fishes?

1. Capture fishing

2. Culture fishing

3. By using cages

4. By using bow and arrow

Q. Rohu, Catla and Common Carp are products of:​

1. Coastal fisheries​
2. Deep sea fisheries​
3. Estuarine fisheries​
4. Inland fisheries​

Q. _____ and _____ are examples of shelled fish which come under fish production

1. Catlas and rohus
2. Prawns and molluscs
3. Pearl spots and mullets
4. Mullets and bhetki

Q.

How do you get rid of algae in a lake?

Q.

How do marine organisms receive continuous supply of nutrients ?