mizer (version 2.0.0)

getRDI: Get density independent rate of egg production

Description

Calculates the density independent rate of egg production \(R_{p.i}\) (units 1/year) before density dependence, by species. Used by getRDD() to calculate the actual density dependent rate. See setReproduction() for more details.

Usage

getRDI(
  params,
  n = initialN(params),
  n_pp = initialNResource(params),
  n_other = initialNOther(params),
  e_repro = getERepro(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 resource abundance by size

n_other

A list of abundances for other dynamical components of the ecosystem

e_repro

The energy available for reproduction (optional). A matrix of size no. species x no. size bins. If not supplied, is calculated internally using getERepro().

Value

A numeric vector the length of the number of species

See Also

getRDD()

Other rate functions: getEGrowth(), getEReproAndGrowth(), getERepro(), getEncounter(), getFMortGear(), getFMort(), getFeedingLevel(), getMort(), getPredMort(), getPredRate(), getRDD(), getResourceMort()

Examples

# NOT RUN {
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 density-independent reproduction rate at a particular time step
getRDI(params,sim@n[21,,],sim@n_pp[21,])
# }