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1 March 2007 The Invasive New Zealand Mud Snail (Potamopyrgus antipodarum) in Lake Erie
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Abstract

The New Zealand mud snail (Potamopyrgus antipodarum) is an invasive species in Europe, Japan, Australia, and North America. In the western United States it is a species of special concern where population densities in some rivers and streams are very large (∼300,000 per m2) and considerable ecological effects of its presence have been reported. Much less about the effects of this species is known in the Great Lakes, where the snail was found in Lake Ontario and the St. Lawrence River in 1991. Here we report the occurrence of the snail in Lake Erie. Two P. antipodarum were collected in 18 m deep water (sampling range 5–18 m) in Lake Erie off shore of Presque Isle State Park near Erie, Pennsylvania in the summer of 2005 and others were collected off of Sturgeon Point in Lake Erie (sampling range 5–20 m) south of Buffalo, NY and in the central basin of Lake Erie (18 m) in 2006. This finding demonstrates that this species continues to expand its range in the Great Lakes. The range expansion increases the likelihood that it may become established in rivers and streams emptying into the Great Lakes where higher densities and greater ecological damage may result.

Edward P. Levri, Ashley A. Kelly, and Eric Love "The Invasive New Zealand Mud Snail (Potamopyrgus antipodarum) in Lake Erie," Journal of Great Lakes Research 33(1), (1 March 2007). https://doi.org/10.3394/0380-1330(2007)33[1:TINZMS]2.0.CO;2
Received: 28 October 2005; Accepted: 19 September 2006; Published: 1 March 2007
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