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    The Effects of Lowered Dissolved Oxygen Concentrations and Salinity of the Free Amino Acid Pool of the Polychaetous Annelid Neanthes arenaceodentata

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    Subject
    amino acid pool; dissolved oxygen; salinity; polychaete; annelid; Neanthes
    Author
    Abati, John L.; Reish, Donald J.
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    71
    Issue
    scas/vol71/iss1; 1
    Metadata
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    URI
    https://scholar.oxy.edu/handle/20.500.12711/10657
    Abstract
    An inbred strain of the polychaetous annelid Neanthes arenaceodentata was subjected to reduced dissolved oxygen and salinity levels under laboratory conditions and effects of these treatments on the free amino acid pool studied. Changes in the relative proportions of free amino acids were observed after exposure to lowered dissolved oxygen concentrations. It is hypothesized that these relate to changes in total protein levels and conversion to energy production under anaerobic conditions. The total free amino acid concentration, expressed as total optical density of ninhydrin positive spots, decreased at lowered salinities along with alteration in the relative proportions of amino acids. These changes probably relate to osmoregulation by the worm under reduced salinities.
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