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    Temporal Changes in Diet and Foraging Habitat of California Killifish {Fundulns parvipinnis) in Marina del Rey, California

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    Subject
    California Killifish; Fundulns parvipinnis; Marina del Rey; California
    Author
    Hartney, Kristine Behrents; Tumyan, Lusine ,
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    97
    Issue
    scas/vol97/iss1; 1
    Metadata
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    URI
    https://scholar.oxy.edu/handle/20.500.12711/10575
    Abstract
    Feeding habits of the California kilUfish, Fimduhis parvipinnis Girard, <br /><br />in Marina del Rey were examined relative to season and prey availability. Tem- <br /><br />poral changes in diet coincided with ontogenetic shifts in foraging habitats. Ju- <br /><br />venile fish fed selectively on relatively rare planktonic harpacticoid copepods and <br /><br />surface dwelling insects, whereas diets of adults were dominated by benthic prey <br /><br />taxa, principally tanaids. The seasonal availability of some prey taxa and the active <br /><br />selection of others associated with a particular foraging habitat affected the type <br /><br />and size of prey consumed. Our results indicate that patterns of prey use are not <br /><br />simple responses to seasonal changes in prey abundance.
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