Respiratory System of Rohu Fish (With Diagram) | Chordata | Zoology

In Labeo, respiration is aquatic, occurring with the help of gills. Respiratory Organs: In Labeo, there are four pairs of gills present in the branchial chambers covered by operculum. Each gill has a double row of gill-filaments or branchial-filaments supported by gill-arch. Each gill filament bears numerous minute transverse lamellae covered with thin epithelium. These lamellae contain capillaries of afferent [...]