fishmethods (version 1.10-4)

menhaden: Biological data for menhaden (Brevoortia tyrannus)

Description

The menhaden data frame has 15 rows and 4 columns. Age, fecundity-at-age, partial recruitment, fraction mature, and nautral mortality data for menhaden to calculate eggs-per-recruit.

Usage

menhaden

Arguments

Format

This data frame contains the following columns:

age

vector of ages

fecundity

vector of weights at spawning for each age

partial

partial recruitment vector

pmat

vector of fraction of females mature at age

M

vector of natural mortality value-at-age