Further feral poeciliid fish in New Zealand fresh waters,with a key to species |
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Authors: | R. M. McDowall |
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Affiliation: | 1. National Institute of Water &2. Atmospheric Research , P. O. Box 8602, Christchurch, New Zealand E-mail: R.McDowall@niwa.cri.nz |
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Abstract: | The poeciliid fish, Phalloceros caudimaculatus (commonly referred to as the “caudo"), is recorded from the wild for the first time, occurring in stock‐water troughs on a farm near Kamo in Northland, New Zealand. The populations in the stock troughs reputedly came from a nearby stream c. 10 years ago, although a preliminary search has failed to reveal them to be there now. Presence of an additional exotic fish in New Zealand fresh waters is a matter for concern, and requires management. To facilitate recognition off. caudimaculatus, and its distinction from other poeciliids present here, a diagnosis is provided to enable identification, together with notes on natural history, and a key for the identification of the five species of Poeciliidae now known from natural waters in New Zealand. |
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Keywords: | New Zealand Poeciliidae Phalloceros caudimaculatus caudo feral population |
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