# Calculate the total biomass of each species within a size range at each time step.

Source:`R/summary_methods.R`

`getBiomass.Rd`

Calculates the total biomass through time within user defined size limits. The default option is to use the whole size range. You can specify minimum and maximum weight or length range for the species. Lengths take precedence over weights (i.e. if both min_l and min_w are supplied, only min_l will be used).

## Arguments

- object
An object of class

`MizerParams`

or`MizerSim`

.- ...
Arguments passed on to

`get_size_range_array`

`min_w`

Smallest weight in size range. Defaults to smallest weight in the model.

`max_w`

Largest weight in size range. Defaults to largest weight in the model.

`min_l`

Smallest length in size range. If supplied, this takes precedence over

`min_w`

.`max_l`

Largest length in size range. If supplied, this takes precedence over

`max_w`

.

## Value

If called with a MizerParams object, a vector with the biomass in grams for each species in the model. If called with a MizerSim object, an array (time x species) containing the biomass in grams at each time step for all species.

## See also

Other summary functions:
`getDiet()`

,
`getGrowthCurves()`

,
`getN()`

,
`getSSB()`

,
`getYieldGear()`

,
`getYield()`