make_s_spawn: Make total spawning migration mortality

In danStich/anadrofish: Anadromous Fish Population Responses to Habitat Changes

Make total spawning migration mortality

Description

Function used to derive total in-river adult survival during the spawning migration from annual mortality and post-spawn survival.

Usage

make_s_spawn(nM, s_postspawn)

Arguments

nM	Instantaneous natural mortality rate. A numeric vector containing either an age-invariant natural mortality rate of length 1 or an age-specific natural mortality rate with length = max_age.
s_postspawn	Post spawning mortality calculated from the output of make_iteroparity and nM, or alternatively a numeric vector for each.

Value

A vector of length one containing pre-spawn survival.

Examples

make_s_spawn(0.68, 0.92)

danStich/anadrofish documentation built on Jan. 17, 2025, 9:46 a.m.