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    Host recognition and possible imprinting in the anemonefish *Amphiprion melanopus* (Pisces: Pomacentridae)

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    Arvedlund et al.1999.pdf (5.043Mb)
    Issue Date
    1999-11-03
    Author
    Arvedlund, Michael
    McCormick, Mark I.
    Fautin, Daphne G.
    Bildsøe, Mogens
    Publisher
    Marine Ecology Progress Series
    Type
    Article
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    Abstract
    Many reef fish have strong microhabitat preferences when they settle to the juvenile population, and choices at this time may influence fish survival. This is exemplified in anemonefishes (Family: Pomacentridae) that exhibit obligate symbiotic relationships with a restricted range of sea anemone species. This study examined how juvenile anemonefish *Amphiprion melanopus* select their host, and whether recognition and selection are mediated by an imprinting-like mechanism. Specifically, we experimentally examined the host-selection made by *A. melanopus* that had been reared under constant conditions, but whose embryos had received 1 of 3 treatments: (1) in contact with a known natural host sea anemone, *Entacmaea quadricolor*; (2) in contact with the sea anemone *Heteractis malu*, which is not a host for *A. melanopus* in nature, but is a host for anemonefish of other species; and (3) without a sea anemone (or chemical cues released from sea anemones) at any life stage. Our study shows that olfaction, not vision, is used by juvenile *A. melanopus* to recognize host anemones. Furthermore, the choice of a settlement site for juvenile *A. melanopus* is strongly influenced by events that occur early in development, prior to the dispersal of larvae from their natal site. We suggest that juvenile *A. melanopus* possess an innate preference for *E. quadricolor*, a preference that is enhanced by imprinting. Interestingly, it was not possible to imprint *A. melanopus* larvae to the non-host sea anemone *H. malu*, which suggests that anemonefish host-imprinting may be rather restricted.
    Description
    Asterisks (*...*) surround words or phrases that are to be italicized.
    URI
    http://hdl.handle.net/1808/5907
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    • Ecology & Evolutionary Biology Scholarly Works [1493]
    Citation
    Arvedlund, Michael, Mark I. McCormick, Daphne G. Fautin, and Mogens Bildsøe. 1999. Host recognition and possible imprinting in the anemonefish *Amphiprion melanopus* (Pisces: Pomacentridae). Marine Ecology Progress Series 188: 207-218.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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