This data set is based on species in the North Sea (Blanchard et al.). It is
a data.frame that contains all the necessary information to be used by the
MizerParams() constructor. As there is no gear column, each species is
assumed to be fished by a separate gear.
Format
A data frame with 12 rows and 7 columns. Each row is a species.
- species
Name of the species
- w_max
Maximum size.
- w_mat
Size at maturity
- beta
Size preference ratio
- sigma
Width of the size-preference
- R_max
Maximum reproduction rate
- k_vb
The von Bertalanffy k parameter
- w_inf
The von Bertalanffy asymptotic size
Examples
params <- MizerParams(NS_species_params)
#> Note: No sel_func column in species data frame. Setting selectivity to be 'knife_edge' for all species.
#> Note: No knife_edge_size column in species data frame. Setting knife edge selectivity equal to w_mat.
#> Note: No h column in species data frame so using f0 and k_vb to calculate it.
#> Note: No gamma column in species data frame so using f0, h, beta, sigma, lambda and kappa to calculate it.
#> Note: No ks column in species data frame so using ks = h * 0.2.
#> Note: No m column in species data frame so using m = 1.
#> Using z0 = z0pre * w_max ^ z0exp for missing z0 values.