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 [...]
Labeo rohita (Rohu) is commonly found in freshwater ponds, lakes, rivers and streams. It is principally herbivorous and bottom feeder, feeding on algae and aquatic plants. It breathes by means of gills and also frequently comes to water surface for gulping air into the air bladder. It is oviparous, breeding occurs in running water in July and August. Fertilisation is [...]
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 [...]