Sum separate mortality columns into new "total_mortality" column

Convenience function for combining the separate mortality columns of the Mortality table. Note: this does not account for AEQ for Chinook.

Usage

add_total_mortality(.data)

Arguments

.data

Dataframe with separate mortality columns landed_catch, non_retention, shaker, drop_off, and msf_ versions of each. Typically comes from fetch_table("Mortality") or aeq_mortality().

Value

.data with additional $total_mortality column just before $landed_catch.