haddock


The <code>haddock</code> 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.


datasets

Fishery science methods and models from published literature and contributions from colleagues.

Gary A Nelson

fishmethods

Fishery Science Methods and Models in R

haddock function

This data frame contains the following columns:
<dl>
<dt>age</dt><dd>vector of ages</dd> <dt>ssbwgt</dt><dd>vector of weights at spawning for each age</dd> <dt>partial</dt><dd>partial recruitment vector</dd> <dt>pmat</dt><dd>vector of fraction of females mature at age</dd> </dl> 

Format

Gabriel, W. L., M. P. Sissenwine, and W. J. Overholtz. 1989. Analysis of spawning stock biomass per recruit:
an example for Georges Bank haddock. North American Journal of Fisheries Management 9: 383-391.

haddock: Biological data for haddock (Melanogrammus aeglefinus)

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