Calculate Initial Numbers-at-Age (Version 1)
Usage
get_initial_numbers_v1(B0, steep, M_a, phi_ya)
Arguments
- B0
A numeric scalar, unfished spawning biomass.
- steep
A numeric scalar, steepness parameter for Beverton-Holt stock-recruitment.
- M_a
A numeric vector of length n_age, natural mortality-at-age.
- phi_ya
A numeric matrix of dimensions \[n_year + 1, n_age\], reproductive output-at-age.
Value
A list containing:
- Ninit
Initial numbers-at-age (numeric vector)
- R0
Unfished recruitment (numeric scalar)
- alpha
Beverton-Holt alpha parameter (numeric scalar)
- beta
Beverton-Holt beta parameter (numeric scalar)
