Fish Population Dynamic and Stock Assessment (2+1)

Results

Chapman’s method

Tabulate the readings

Sl.No.	T	L(t) (X)	$$L(t + \Delta t - L(t) (Y)$$	XY	X2
1.	1	25.7
2.	2	36.0
3.	3	42.9
4.	4	47.5
5.	4	50.7
6.	6	52.8
Total

Ford – Walford method

$$L(t) = x, \ L(t+ \Delta t)$$ is y

Tabulate the readings

Sl.No.	T	L(t) (X)	$$L(t+ \Delta t)$$ (Y)	XY	X2
1.	1	25.7
2.	2	36.0
3.	3	42.9
4.	4	47.5
5.	5	50.7
6.	6	52.8
Total

$$L_\infty = -a/b$$

$$K = - lnb$$