Question

The common name of marine fish Anguilla is:
(a) Rohu
(b) Hilsa
(c) Eel
(d) Bombay duck

Answer 1

It belongs to the family of freshwater fishes that have ray-shaped finns. They have elongated bodies that help them swim easily in all directions and are generally predatory in nature that may even produce electric shocks.

Complete answer:
The marine fish Anguilla is also known as Eel. They belong to the family Anguiideae having a long and elongated body which appears similar to the body of a snake. They have fins which helps them in swimming, the fins are of various types that include caudal fins, dorsal fins, and anal fins.
-Anguilla are cultured in marine and freshwater and their culture is known as Valliculture.
-They are called catadromous fish as they migrate seasonally or annually for their process of reproduction.
-They are also the source of food for fishes and may even be raised in the farms but on a smaller scale.
-There species are now lessened and they now come under the category of threatened species.
-Their body shape is elongated with a large pointed head and fins on the posterior end of their body.
-The freshwater eels have well developed and prominent eyes than the saltwater or marine eels.
-They have pectoral fins which help them in movement and locomotion in a particular direction.
-They undergo sexual dimorphism where males mate with a large number of females. The Males are smaller in length while females are longer in length.
-The eels vary in their shapes and colors, they may be colored brown, olive-yellow, or olive according to the color of the lake or water bodies which acts as their defence mechanism.

So, the correct answer is ‘Eel’.

Note:
Labeo rohita , commonly called Rohu fish, is one of the typical freshwater bony fishes of India. It is a large omnivore and extensively used in agriculture. It is a large silver-colored fish. Hilsa is also known as Bengal Ilsish that belongs to the family Clupeidae. Bombay duck also known as Harpadon nehereus is a gelatinous, ugly, and pink-skinned with a gaping maw that belongs to the family Synodontidae And is found in estuaries of northern India.