Get energy rate available for growth

Calculates the energy rate \(g_i(w)\) (grams/year) available by species and size for growth after metabolism, movement and reproduction have been accounted for. Used by project for performing simulations.

getEGrowth(
  params,
  n = params@initial_n,
  n_pp = params@initial_n_pp,
  n_other = params@initial_n_other,
  e_repro = getERepro(params, n = n, n_pp = n_pp, n_other = n_other),
  e = getEReproAndGrowth(params, n = n, n_pp = n_pp, n_other = n_other)
)

Arguments

params	A MizerParams object
n	A matrix of species abundances (species x size).
n_pp	A vector of the plankton abundance by size
n_other	A list of abundances for other dynamical components of the ecosystem
e_repro	The energy available for reproduction (optional, although if specified, e must also be specified). A matrix of size no. species x no. size bins. If not supplied, is calculated internally using getERepro.
e	The energy available for reproduction and growth (optional, although if specified, e_repro must also be specified). A matrix of size no. species x no. size bins. If not supplied, is calculated internally using getEReproAndGrowth.

Value

A two dimensional array (prey species x prey size)

See also

getERepro, getEReproAndGrowth

Other rate functions: getEReproAndGrowth(), getERepro(), getEncounter(), getFMortGear(), getFMort(), getFeedingLevel(), getMort(), getPlanktonMort(), getPredMort(), getPredRate(), getRDD(), getRDI(), getRates(), getStarvMort()

Examples

if (FALSE) {
data(NS_species_params_gears)
data(inter)
params <- newMultispeciesParams(NS_species_params_gears, inter)
# Project with constant fishing effort for all gears for 20 time steps
sim <- project(params, t_max = 20, effort = 0.5)
# Get the energy at a particular time step
getEGrowth(params,sim@n[21,,],sim@n_pp[21,])
}