Make maximum age for population using built-in data sets.
make_maxage.Rd
The purpose of this function is to query the maximum age
in the selected river from built-in data set containing
region-specific max_ages
and.
Arguments
- river
River for which maximum age is needed.
- sex
Sex of fish. If not specified, then mean of male and female maximum ages is returned for American shad, or pooled sex data used for river herring.
- species
Species for which population dynamics will be simulated. Choices include American shad (
"AMS"
), alewife ("ALE"
), and blueback herring ("BBH"
).- 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 ofspecies
andriver
.
References
Atlantic States Marine Fisheries Commission (ASMFC). 2020. American shad benchmark stock assessment and peer-review report. ASMFC, Arlington, VA.
Atlantic States Marine Fisheries Commission. 2024. River herring benchmark stock assessment and peer-review report. ASMFC, Arlington, VA. URL: https://asmfc.org/uploads/file/66f59e40RiverHerringAssessment_PeerReviewReport_2024.pdf