When an ‘invasive’ fish species fails to invade!  : example of the topmouth gudgeon Pseudorasbora parva

G. H Copp, K. J Wesley, Hugo Verreycken, I. C Russell

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    Abstract

    A major problem in evaluating biological invasions is the lack of information on failed non-native species introductions, with invasiveness determined purely on establishment successes. This is the case of topmouth gudgeon Pseudorasbora parva, an Asiatic cyprinid fish that now occurs throughout most of Europe and is said to be highly invasive. Although the species has established itself in many locations, and often in high densities, not all topmouth gudgeon invasions are successful. In this brief communication, the appearance and disappearance (following pond drain down and repeated electrofishing depletion) of topmouth gudgeon Pseudorasbora parva from a small pond in northeast London (England) is described, along with two other cases elsewhere in Europe.
    Original languageEnglish
    JournalAquatic Invasions
    Volume2
    Issue number2
    Pages (from-to)107-112
    Number of pages6
    Publication statusPublished - 2007

    Thematic list

    • Species and biotopes
    • Invasive species (species diversity)

    EWI Biomedical sciences

    • B003-ecology
    • invasieve exoten

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