| ypr_yield {ypr} | R Documentation |
Yield
Description
Calculates the yield for a population.
Usage
ypr_yield(object, Ly = 0, harvest = TRUE, biomass = FALSE, ...)
Arguments
object |
The population or populations. |
Ly |
The minimum length (trophy) fish to consider when calculating the yield (cm). |
harvest |
A flag specifying whether to calculate the yield for harvested fish or captures. |
biomass |
A flag specifying whether to calculate the yield in terms of the biomass versus number of individuals. |
... |
Unused parameters. |
Details
By default, with Rmax = 1 the number of individuals is the proportion of
the recruits at the carrying capacity. If the yield is given in terms of the
biomass (kg) then the scaling also depends on the value of Wa (g).
Value
The yield as number of fish or biomass.
See Also
Other yield:
ypr_plot_yield(),
ypr_tabulate_yield(),
ypr_yields()
Other calculate:
ypr_age_at_length(),
ypr_exploitation(),
ypr_length_at_age(),
ypr_optimize(),
ypr_yields()
Examples
ypr_yield(ypr_population())
ypr_yield(ypr_ecotypes(Linf = c(100, 200)))