In this article we will discuss about:- 1. Origin of Rohu Fish 2. Systematic Position 3. Distribution 4. Economic Importance. Origin of Rohu Fish: Class Osteichthyes (Gr., osteon = bone + ichthyes = fish) includes the ray-finned "bony fishes", both marine (e.g., cod, sole, herring, eels) and freshwater. Subclass Actinopterygii of class Osteichthyes are the commonest vertebrates of today. Its [...]
Sexes are separate. The excretory and reproductive organs in male and female are quite separate in Labeo. Excretory Organs: The kidneys are of large size, extending the whole length of the abdominal cavity. They are placed dorsally above the air bladder, and partly fused together in the middle region. Anteriorly both the kidneys are free. Their anterior ends are much [...]
In this article we will discuss about the nervous system of rohu fish (Labeo rohita) with the help of suitable diagrams. Brain: The brain of Labeo, though in general not unlike that of elasmobranchs, is very different in detail and specialised. The cerebellum is very large. Its anterior part does not bulge outward. Instead it pushes forwards under the roof [...]