Fish Population Dynamic and Stock Assessment (2+1)

Procedure

1. In Ford Walford technique, length at time t (Lt) & Lt+ ^t (length at the subsequent year) are collected for different age groups.
2. In Chapman method Lt & Lt + ^t – Lt are collected for different age groups. From this $$L_\infty$$ & K are graphically estimated
3. Similarly, to ascertain the $$W_\infty$$ & K, weight in grams are converted into respective cube root equivalence. Once this is accomplished, the procedure mentioned in the different methods for growth in length could be used for estimation for $$W_\infty$$ & K.