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  • The effects of light and nutrients on Caulerpa taxifolia and growth

    Author(s)
    Burfeind, Dana Dee
    Udy, James White
    Griffith University Author(s)
    Burfeind, Dana D.
    Year published
    2009
    Metadata
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    Abstract
    Caulerpa taxifolia, an invasive species elsewhere in the world, is native to Moreton Bay where its distribution has been increasing in recent years. In Australia, dense beds of C. taxifolia are predominantly found in areas of low light and high nutrients (low water quality). Monitoring data from Moreton Bay suggests that native C. taxifolia is not directly replacing seagrass, but that there is a successional trend of seagrass loss and subsequent C. taxifolia colonization. The current study examined responses of C. taxifolia in relation to changes in environmental conditions using ambient water quality and a light/nutrient ...
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    Caulerpa taxifolia, an invasive species elsewhere in the world, is native to Moreton Bay where its distribution has been increasing in recent years. In Australia, dense beds of C. taxifolia are predominantly found in areas of low light and high nutrients (low water quality). Monitoring data from Moreton Bay suggests that native C. taxifolia is not directly replacing seagrass, but that there is a successional trend of seagrass loss and subsequent C. taxifolia colonization. The current study examined responses of C. taxifolia in relation to changes in environmental conditions using ambient water quality and a light/nutrient manipulative experiment. In the ambient water quality experiment we found that C. taxifolia grew significantly faster in areas with higher light (lower turbidity). The manipulative experiment demonstrated that nutrients stimulate C. taxifolia growth, however, light availability and seasonality appear to influence the response of C. taxifolia growth to nutrients in Moreton Bay. These findings suggest that C. taxifolia is unlikely to colonize seagrass beds in areas with high light and low nutrients; however, in areas with moderate light and moderate to high nutrients C. taxifolia and seagrass are likely to coexist.
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    Journal Title
    Aquatic Botany
    Volume
    90
    Issue
    2
    DOI
    https://doi.org/10.1016/j.aquabot.2008.06.004
    Subject
    Ecological Applications not elsewhere classified
    Community Ecology (excl. Invasive Species Ecology)
    Environmental Science and Management
    Ecology
    Plant Biology
    Publication URI
    http://hdl.handle.net/10072/33103
    Collection
    • Journal articles

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