Two invasive bivalves, Rangia cuneata (G.B. Sowerby I, 1831) and Mytilopsis leucophaeata (Conrad, 1831) living in freshwater in Lincolnshire, Eastern England
Willing, M.J. (2015). Two invasive bivalves, Rangia cuneata (G.B. Sowerby I, 1831) and Mytilopsis leucophaeata (Conrad, 1831) living in freshwater in Lincolnshire, Eastern England. J. Conch., Lond. 42(2): 189-192
In: Journal of Conchology. Conchological Society of Great Britain & Ireland: London. ISSN 0022-0019; e-ISSN 2755-3531, more
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| Keywords |
Dreissenidae J. E. Gray, 1840 [WoRMS]; Mactridae Lamarck, 1809 [WoRMS]; Mytilopsis leucophaeata (Conrad, 1831) [WoRMS]; Rangia cuneata (G. B. Sowerby I, 1832) [WoRMS]
Fresh water |
| Author keywords |
Rangia cuneata, Mytilopsis leucophaeata, invasive species, Mactridae, Dreissenidae, South Forty Foot Drain, River Witham |
| Abstract |
The invasive Gulf Wedge Clam, Rangia cuneata is reported new to the UK from two sites along an artificial channel joining the lower reaches of the River Witham in Lincolnshire. This bivalve occurred in association with another invasive North American species, the False Dark Mussel, Mytilopsis leucophaeata, at its fourth UK site. Both of these species, known previously only from brackish-water, were living in freshwater associated with typical freshwater molluscs. Shell morphometrics suggest that both species have been present in the channel for at least 6 years, when they are likely to have been introduced as a consequence of discharge of boat ballast water. |
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