Question

Shagreen is skin of
A. Cod fish
B. Sole fish
C. Shark
D. Whale

Answer 1

Hint: India is one of the most important countries that produces fish through aquaculture in the world. The three characteristic Indian fishes, such as mrigal (Cirrhinus mrigala), catla (Catla catla) and rohu (Labeo rohita) increases the size of making to the range of 70 to 75 percent of the total freshwater carp production.

Complete Answer:
Fish are a very high source of proteins and constitute great nutritional value. Fish production was first dependent on fish capturing. But many of the caught fishes that were used for industrial purposes and were rarely taken as food by humans. So, a backup method was provided to raise the fish production that was confined to farming of commercially vital aquatic organisms. This is termed as aquaculture.

Now, let us find the solution from the option:
- Cod fish: It is also termed as Gadus. It is a kind of benthopelagic fish. It is used as a consuming fish for humans.
- Sole fish: It is also termed as Solae. It is a kind of flat fish. It is used as a consuming fish for humans as it is a good source of vitamin B12 and also Selenium.
- Shark: Shark belongs to elasmobranch fishes. They have cartilaginous exoskeleton. Shagreen is the skin of a shark which is used in making decorative materials.
- Whale: They are a group of marine fishes. These have soft and smooth skin and their skin is used to render oil.

Our required option is C that is shark.

Note: Shagreen is a type of rawhide that is the skin of sharks consisting of rough untanned skin, historically from a horse's or onager's back, or from shark or ray. In modern times, shagreen is developed from the skins of commercially farmed Asian stingrays. It is used as an abrasive material due to its pointed nature.