Q.28
Fishing Technology and Engineering- ICAR JRF/SRF 2024
MCQ (Single Correct) +4 −1
The von Bertalanffy equation deals with the following in fish
  • von Bertalanffy Growth Function (VBGF):
  • Formulated by Ludwig von Bertalanffy (1938), this is the standard mathematical model used in fisheries science and fish population dynamics to describe somatic growth:
$$L_t = L_\infty \left(1 - e^{-K(t - t_0)}\right)$$ $$\text{or } W_t = W_\infty \left(1 - e^{-K(t - t_0)}\right)^b$$
  • Parameters:
  • $L_t$: Length of fish at age $t$.
  • $L_\infty$: Asymptotic maximum theoretical length.
  • $K$: Curvature growth coefficient (rate at which length approaches $L_\infty$).
  • $t_0$: Theoretical age at which length was zero.
  • Correct Option: Option 3 (Growth).
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