Observation

Observation

Total length of fish = 21cm

Weight of fish = 550g

Weight of ovary = 185g

Sample number

Weight of the sample (g)

Number of eggs in sample

1

2.2

2500

2

1.9

1980

3

2.5

2850

4

2.8

3300

5

1.6

1500

Total

11.0

12130

Calculation

Absolute fecundity = [(Total Number of eggs present in all the subsamples in sample / weight of sample) x weight of ovary]

= [(12130/11) x 185) = 204004 Number of eggs.

Relative fecundity = Absolute fecundity / Weight of the ovary

= 204004/185 = 1102 eggs / gram of ovary

Last modified: Friday, 4 November 2011, 10:48 AM