Table 1.Ontogenic dietary shifts (% of total food intake by volume) of different size classes of rohu, Labeo rohita | |||||||
Food type | Life stage/ size class | ||||||
Fry (11-20 mm)� | Fry/fingerling (21-40 mm)� | Fingerling (41-100 mm)� | Juvenile/grower (>100 mm)� | Juvenile/grower (100-250 mm)� | Grower/adults (>250 mm)� | Adult� | |
Unicellular algae | 15 | 14 | 28 | 15 | 3 | 6 | |
Fillamentous alagae | 4 | 13 | 1 | 7 | |||
Protozoans and rotifers | 2 | 2 | 1 | ||||
Zooplankton | 60 | 37 | 18 | 1 | |||
Crustacea/insects | 0 | 8 | 8 | 2 | |||
Higher aquatic plants | 71 | ||||||
Vegetable debris | 20 | 7 | 42 | 56 | 55 | 57 | |
Sand and mud | 20 | 37 | 14 | 15 | 5 | 5 | 14 |
Unidentified mass | 17 | 25 | |||||
1. Alikunhi (1957); 2. Mookerjee (1945); 3. Das and Moitra (1956) |