• Login
    View Item 
    •   Oxy Scholar Home
    • Bulletin of the Southern California Academy of Sciences
    • Bulletin of the Southern California Academy of Sciences
    • View Item
    •   Oxy Scholar Home
    • Bulletin of the Southern California Academy of Sciences
    • Bulletin of the Southern California Academy of Sciences
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Vertebral Variation in the Emerald Shiner Notropis atherinoides from the Ohio River: An Apparent Contradiction to "Jordan's Rule"

    Thumbnail
    Subject
    Jordan's Rule; Emerald Shiner; Notropis atherinoides; Ohio river; cline; vertebrae; embryonic development
    Author
    Resh, Vincent H.; White, David S.; Elbert, Stephen A.; Jennings, Daryl E.; Krumholz, Louis A.
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    75
    Issue
    scas/vol75/iss2; 2
    Metadata
    Show full item record
    URI
    https://scholar.oxy.edu/handle/20.500.12711/11019
    Abstract
    Vertebral numbers of the emerald shiner Notropis atherinoides collected from approximately 100-mile intervals of the Ohio River during 1957-1959 were analyzed using x-rays. Counts ranged from 36 to 42 with an overall mean of 39.58 vertebrae. There was a consistent gradual cline in numbers of vertebrae with significant differences in mean numbers. Numbers were smallest near the source and largest near the mouth of the river. This is a reversal of the usual trend of greater numbers of vertebrae at higher latitudes, but it may be consistent with Jordan's Rule in that habitats in the upper (more northerly) reaches of the river may warm more quickly, and embryonic development may proceed there at higher temperatures than in the lower reaches.
    Collections
    • Bulletin of the Southern California Academy of Sciences

    Browse

    All of Oxy ScholarCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsJournal TitleJournal IssueThis CollectionBy Issue DateAuthorsTitlesSubjectsJournal TitleJournal Issue

    My Account

    LoginRegister

    DSpace software copyright © 2002-2021  DuraSpace
    Contact Us | Send Feedback
    DSpace Express is a service operated by 
    Atmire NV