Morphometric Analysis of Tule Perch (Hysterocarpus traski) Populations in Three Isolated Drainages

TitleMorphometric Analysis of Tule Perch (Hysterocarpus traski) Populations in Three Isolated Drainages
Publication TypeJournal Article
Year of Publication1981
AuthorsBaltz, D. M., & Moyle P. B.
JournalCopeia
Volume1981
Issue2
Pagination305-311
Date Published05/1981
ISSN00458511
AbstractMorphometric analysis of tule perch from six sites in three isolated drainages was conducted to assess the validity of previous systematic work. Nine variables were subjected to principal component and discriminant analysis. Principal component analysis indicated that groupings by drainage were real. Classification by discriminant functions among drainages was 96% accurate. Classification among collection sites was less accurate (88% overall), but most misclassified cases were assigned to another site in the same drainage. Ecophenotypic variation was apparent but the degree of overlap between drainages was minimal and indicated that the within-drainage differences were less than the among-drainage differences. Our analysis supports the view that populations in separate drainages are sufficiently distinct to warrant subspecific designation.
URLhttp://www.jstor.org/stable/1444219
DOI10.2307/1444219