Note
Includes bibliography.
Member of
Contributors
Publisher
Florida Atlantic University
Date Issued
2013
EDTF Date Created
2013
Description
The genus Astarte is known for variable shell morphology and polymorphism
within living and fossil species. Astarte borealis, the most common living species, is
recognizable and common among mid-to-high latitude North Pacific, Arctic Ocean and
North Atlantic waters, and has been divided into many subspecies and varieties based on overall shell shape. A collection of recent A. borealis specimens from Camden Bay,
northern Alaska (641 specimens) with outline intact were used for analyses. Bivariate
analysis of height vs. length and morphometric analysis of shell outline determined
variants within a population of A. borealis, and then compared to Pliocene A. borealis
and Oligocene A. martini. The computer program SHAPE uses elliptic Fourier
coefficients of shell outline to evaluate and visualize shape variations. The multivariate outline analysis indicates that A. borealis intraspecies variation is based upon a common
shape that grades into other shapes, rather than grade between two or more end-forms.
within living and fossil species. Astarte borealis, the most common living species, is
recognizable and common among mid-to-high latitude North Pacific, Arctic Ocean and
North Atlantic waters, and has been divided into many subspecies and varieties based on overall shell shape. A collection of recent A. borealis specimens from Camden Bay,
northern Alaska (641 specimens) with outline intact were used for analyses. Bivariate
analysis of height vs. length and morphometric analysis of shell outline determined
variants within a population of A. borealis, and then compared to Pliocene A. borealis
and Oligocene A. martini. The computer program SHAPE uses elliptic Fourier
coefficients of shell outline to evaluate and visualize shape variations. The multivariate outline analysis indicates that A. borealis intraspecies variation is based upon a common
shape that grades into other shapes, rather than grade between two or more end-forms.
Language
Type
Form
Extent
109 p.
Subject (Topical)
Identifier
FA0004010
Additional Information
Includes bibliography.
Thesis (M.S.)--Florida Atlantic University, 2013.
Date Backup
2013
Date Created Backup
2013
Date Text
2013
Date Created (EDTF)
2013
Date Issued (EDTF)
2013
Extension
FAU
IID
FA0004010
Issuance
single unit
Organizations
Attributed name: Charles E. Schmidt College of Science
Attributed name: Department of Geosciences
Person Preferred Name
Chrpa, Michelle E.
author
Graduate College
Physical Description
Online Resource
109 p.
Title Plain
Morphology of Astarte borealis (Mollusca: bivalvia) of Camden bay, northern Alaska
Use and Reproduction
http://rightsstatements.org/vocab/InC/1.0/
Origin Information
2013
2013
Florida Atlantic University
single unit
Physical Location
Florida Atlantic University Digital Library
Sub Location
Boca Raton, Fla.
Title
Morphology of Astarte borealis (Mollusca: bivalvia) of Camden bay, northern Alaska
Other Title Info
Morphology of Astarte borealis (Mollusca: bivalvia) of Camden bay, northern Alaska