Salmonid verebrae identification

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Description

The following files contain the R fitted model objects that have been developed to identify salmonid vertebrae to the species level using vertebral morphology, and a brief explanation about how to identify new specimen data. The models are from the paper:

Huber, H.R., Jorgensen, J.C., Butler, V.L., Baker, G., and Stevens, R. 2011. Can salmonids (Oncorhynchus spp.) be identified to species using vertebral morphometrics? Journal of Archaeological Science 38:136-146. doi:10.1016/j.jas.2010.08.020 [http://dx.doi.org/10.1016/j.jas.2010.08.020; a pdf of the pre-publication version is with the files below.]

Preliminary results from our validation study applying these models, derived from modern vertebrae, on ancient vertebrae has shown moderate to marginal performance. An initial attempt at adding additional morphological characteristics (width, and some derived characters from this) has shown some model performance improvement. Efforts to improve model performance are in progress.

We are actively researching in this area, inquire with me (jeff dot jorgensen at noaa dot gov) for details. If you check back periodically, you may notice occasional updates.

 



Files

Salmonid verebrae identification /
  • Download Salmonid verebrae identification as zip archive Download
Name Status Rev Size Updated Downloads Brief Description Actions
huber_et_al_2011_JAS_vert_ID.pdf
Stable
1 1004.4 KB 04/19/2011 14:10 PDT 1647 1647 f
Pre-publication version of salmonid vert ID paper
vertID_example_code.R
Stable
2 5.5 KB 11/30/2010 11:58 PST 228 228 f
Explanations and example code for salmonid vertebrae identification
vertID_rpart_models_type2_type3.RData
Stable
2 47.4 KB 11/30/2010 11:59 PST 217 217 f
R workspace containing fitted rpart vertebrae identification models

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