Growth

- Read these notes and Sections 12.1-12.3 in
*Introductory Fisheries Analyses with R*and consider the items below.- Define L
_{∞}, K, t_{0}, L_{0}, ω, L_{1}, L_{2}, and L_{3}(**be very specific with these definitions, possibly including what these items are NOT**.) - What data is required to fit a VBGF?
- Write the equations for the typical, original, Schnute, Gallucci and Quinn, and Francis parametrizations of the von Bertlanffy Growth Function (VBGF).
- How do the fits of the various VBGF paramegerizatons differ?
- What are the assumptions required to fit a VBGF with nonlinear regression?
- What R function is used to find starting values for fitting a VBGF? What arguments does it need?
- What R function is used for fitting a nonlinear regression? What arguments does it need for fitting a growth model?
- What function extracts the parameters estimates from the results above?
- What function extracts confidence intervals for the parameters from the results above?

- Define L