make_recruits: Make recruits

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

Make recruits

Description

Function used to calculate realized reproductive output (to larval stage) of female spawners without density-dependence in larval production.

Usage

make_recruits(eggs, sr)

Arguments

eggs	The number of eggs an individual fish can produce (Potential annual fecundity, PAF).
sr	Sex ratio of spawning adults.

Value

Number of juvenile recruits. Numeric vector of length(eggs. May be a single value (vector of length 1) or a vector of length = maximum age depending on whether age-specific values are passed to eggs.

Examples

# Example usage
## Not run: 
  
# Using values from Bailey and Zydlewski (2013)  
  eggs <- c(0, 0, 0, 20654, 34674, 58210, 79433, 88480, 97724)
  sr <- 0.50
  s_hatch = 0.10   

# Calculate expected number of age-0 fish  
  fec <- make_recruits(eggs = eggs, sr = sr, s_hatch = s_hatch)
  

## End(Not run)

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