7258

• UCREFRP Catalog Number: 7258
• Author: Rosenfeld, M. J.
• Title: Morphometry in Chubs of the Genus
• USFW Year: 1986.
• Copyright Material: NO

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Table 1. Loadings on the first three principal component axes
for 31 measurements taken from photographs of Colorado River
chubs. Measurement numbers are defined in Figure 1. All
loadings on the first axis are significant, likely because of
their size dependency. Significant loadings on the other two
axes are highlighted in bold type. Two regions of the body
appear important for sorting morphs, the head and the mid-portion
of the body as defined by a truss that includes the dorsal and
pelvic fin bases as well as the anal fin base origin.