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07. Example Models
- Bristol Bay Red King Crab (BBRKC)
- St. Matthew Island Blue King Crab (SMBKC)
- Pribilof Island Red King Crab (PIRKC)
The Bristol Bay Red King Crab (BBRKC) example can be found in the directory gmacs/examples/bbrkc/TwoSex
. This example can be run by simply using the command make
from the terminal within that directory. Alternatively the model may be run by navigating to the directory and using the command gmacs
from the command line.
Below we provide plots of the output of this example model that were produced using the purpose-built R package gmr
.
The BBRKC model is fit to three types of data: catch, abundance indices and size-composition.
The BBRKC catch is split up into two fleets (trawl and pot) by sex (female, male or an aggregate of the two) and these catches are either retained or discarded. A plot of the observed catches is given below (bars) along with the model fit to these catches (lines).
The BBRKC model is fit to two different abundance indices: BSFRF and NMFS trawl.
The St. Matthew Island Blue King Crab (SMBKC) example can be found in the directory gmacs/examples/smbkc
. This example can be run by simply using the command make
from the terminal within that directory. Alternatively the model may be run by navigating to the directory and using the command gmacs
from the command line.
The SMBKC model is fit to three types of data: catch, abundance indices and size-composition.
The SMBKC catch is split up into three fleets (pot, trawl bycatch and fixed bycatch) and these catches are either retained or discarded. A plot of the observed catches is given below (bars) along with the model fit to these catches (lines).
The SMBKC model is fit to two different abundance indices: ADFG and NMFS trawl.
An example model for Gmacs is under development, based on the Pribilof Island Red King Crab Fishery. More to come.
Gmacs: A Stock Assessment Modeling Framework