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Convert ZooMSS abundance matrices to biomass by multiplying by body weights

Source: R/utils.R
getBiomass.Rd

Converts abundance data to wet weight biomass by multiplying abundances by the corresponding body weights for each size class. Optionally converts to carbon biomass.

Usage

getBiomass(mdl, units = "ww")

Arguments

mdl

ZooMSS model object containing abundance array (N) and weight vector (param$w)

units

Character string specifying biomass units: "ww" for wet weight (default) or "carbon" for carbon biomass

Value

3D array of biomass values with same dimensions as N. Units depend on the units parameter:

  • "ww": grams wet weight

  • "carbon": grams carbon

Details

Convert Abundance to Biomass

This function transforms abundance matrices to biomass by applying the weight vector across size classes. Essential for analyses requiring biomass units rather than abundance counts. Works with 3D arrays (time, groups, size_classes). Can convert to either wet weight or carbon biomass units.

Examples

if (FALSE) { # \dontrun{
# Run ZooMSS model
results <- zoomss_model(input_params, Groups)

# Convert abundances to wet weight biomass
biomass_ww <- getBiomass(results, units = "ww")

# Convert abundances to carbon biomass
biomass_carbon <- getBiomass(results, units = "carbon")
} # }