About Lesson
Fecundity
- Refers to number of eggs contained in the ovary prior to spawning period.
- Can be categorized into two groups, absolute and relative.
- Absolute fecundity is the total number of eggs in the ovary of an individual fish.
- Relative fecundity is the number of ripe eggs per kilogram weight of female fish.
Fecundity of cultivated carps of Nepal
|
Fish species |
Fecundity |
|
Common carp |
100,000-150,000 |
|
Silver Carp |
60,000-80,000 |
|
Bighead carp |
50,000-60,000 |
|
Grass carp |
60,000-80,000 |
|
Rohu |
2000,000- 4000,000 |
|
Mrigal |
150,000 – 300,000 |
|
Catla |
100,000 – 250,000 |
|
Nile tilapia |
500-2500 per spawning |