Undergraduate Thesis Or Project
 

Morphological diversity of the speckled dace-EDP.pdf

Public Deposited

Contenu téléchargeable

Télécharger le fichier PDF
https://ir.library.oregonstate.edu/concern/undergraduate_thesis_or_projects/j67315123

Descriptions

Attribute NameValues
Creator
Abstract
  • The Speckled dace (Rhinichthys osculus) is the most widespread minnow in western North America (Gilbert and Williams, 2002). It has diversified widely across its range—both morphologically and genetically—and as such might rightly be called a species complex. Our ongoing work aims to determine where boundaries between potentially undescribed species lie in Oregon and to identify morphological differences that may help diagnose those taxonomic entities. Meristic and linear morphometric data were collected from preserved specimens originating in four major drainage basins in desert Oregon. Morphometric data points to some potential phenotypic differences between fish reared in springs (slow-moving water) and fish reared in streams (fast-moving water). In particular, spring fish from each basin tend to have shallower bodies and shorter heads than the stream fish from the same basin. The morphologic differences described by this study will give insight in to the evolutionary history of this species complex and how geography has influenced the diversification of R. osculus.
  • Keywords: morphology, fish, speckled dace, Oregon
Déclaration de droits

Des relations

Parents:

Articles

La vignette Titre Date de téléchargement Visibilité actes
file details Morphological_diversity_of_the_speckled_dace-EDP.pdf 2017-07-21 Public Télécharger