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

Which of the following are freshwater fishes that have great food value?

$P$ - Statement: Fisheries can be either freshwater or marine.
$Q$ - Statement: Approximately $90\%$ of the world's fisheries come from the ocean.

Which of the following is a freshwater fish?

Discuss the role of fishery in enhancement of food production.

Identify the correct statements from the following:
$(i)$ Modern techniques are implemented to increase the production of plants and animals in marine habitats.
$(ii)$ $Catla$,$Rohu$,$Mrigal$,and $Hilsa$ are major carp fishes.
$(iii)$ $Hilsa$,$Sardines$,$Rohu$,and $Mrigal$ are marine food fishes.
$(iv)$ Fisheries can be either marine or freshwater.