Fish Population Dynamic and Stock Assessment (2+1)

Solution

By applying linear regression analysis, K and $$L_\infty$$ could be estimated

Y= a + bx

$$b={\Sigma XY - (\Sigma X) - (\Sigma Y) \over n} \over \Sigma X^2 -{{( \Sigma X )}^2 \over n}$$

$$a= \left \[{\Sigma Y \over n} - (b. {\Sigma X \over n})\right \]$$

$$K= -b$$

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

where K= Curvature parameter / growth coefficient

$$L_\infty =Asymptotic \ length$$