fishmethods (version 1.10-4)

haddock: Biological data for haddock (Melanogrammus aeglefinus)

Description

The haddock data frame has 15 rows and 4 columns. Age, weight at spawning, partial recruitment, and fraction mature data for haddock (Melanogrammus aeglefinus) used by Gabriel et al. (1989) to calculate spawning stock biomass-per-recruit.

Usage

haddock

Arguments

Format

This data frame contains the following columns:

age

vector of ages

ssbwgt

vector of weights at spawning for each age

partial

partial recruitment vector

pmat

vector of fraction of females mature at age