ssbpurec {FLCore} | R Documentation

## Method ssbpurec

### Description

Calculates the Spawning Stock Biomass per unit recruit for an `FLStock` object.

The method calculates SSB per recruit at zero fishing mortality.

### Generic function

ssbpurec(object)

### Method arguments

`object` :
  an object of class `FLStock`.
`start, end` :
  The first and last year over which SSB per recruit is to be calculated. By default the first and last year of the `FLStock` object are used.
`type` :
  The type of calculation to perform. Currently only non-parm (non parametric) is supported whereby the SSB per recruit is calculated using mean values over the specified time period.
`recs` :
  The proportion of the year in which recruitment occurs.
`spwns` :
  The proportion of the year in which spawning occurs.
`plusgroup` :
  Is the last age a plusgroup TRUE/FALSE

### Methods

signature(object=FLStock) :
  Returns the SBB-per-unit-recruit.

### Author(s)

The FLR Team

### See Also

FLStock-class

### Examples

    data(ple4)
    ssbpurec(ple4)

    ssbpurec(ple4, start=1980, end=2000)

[Package FLCore version 2.2 Index]