Make age-specific proportion of spawners in population — make

The purpose of this function is to make age-specific recruit to spawn probabilities for rivers listed in get_rivers using built-in data sets for region-specific max_ages and maturity.

Usage

make_spawnrecruit(
  river,
  sex = c("male", "female"),
  species = c("ALE", "AMS", "BBH"),
  custom_habitat = NULL
)

Arguments

river: River for which spawn recruit probabilities are requested.
sex: Sex of fish. If not specified, then mean of male and female spawn recruit probabilities are returned.
species: Species for which rivers are returned Choices include American shad ("AMS"), alewife ("ALE"), and blueback herring ("BBH"). If species is "ALE" or "BBH" then this function calls make_spawnrecruit_rh.
custom_habitat: A dataframe containing columns corresponding to the those in the output from custom_habitat_template. The default, NULL uses the default habitat data set for a given combination of species and river.

Value

A numeric vector of length = length(max_age) depending on maximum age in the selected river by region and species.

References

Atlantic States Marine Fisheries Commission

Examples

make_spawnrecruit(river = "Hudson", species = "BBH")
#>  [1] 0.0000000 0.0000000 0.0000000 0.1801883 0.7719223 1.0000000 1.0000000
#>  [8] 1.0000000 1.0000000 1.0000000 1.0000000 1.0000000