New Zealand Journal of Marine and Freshwater Research abstracts
Further feral poeciliid fish in New Zealand fresh waters, with a key to
species
R. M. MCDOWALL
National Institute of Water & Atmospheric
Research
P. O. Box 8602
Christchurch, New Zealand
email: R.McDowall@niwa.cri.nz
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 of
P. 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.
Keywords New Zealand; Poeciliidae; Phalloceros
caudimaculatus; caudo; feral population
M99013
Received 23 March 1999; accepted 20 May 1999
PDF file of entire paper: medium quality (1966K); (scanned from paper original: notes about this process)
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