First record of Mercenaria mercenaria (Bivalvia: Veneridae) and Ensis directus (Bivalvia: Pharidae) on Bay of Biscay, Iberian Peninsula
Arias, A.; Anadón, N. (2012). First record of Mercenaria mercenaria (Bivalvia: Veneridae) and Ensis directus (Bivalvia: Pharidae) on Bay of Biscay, Iberian Peninsula. J. Shellfish Res. 31(1): 57-60. https://dx.doi.org/10.2983/035.031.0107
In: Journal of Shellfish Research. National Shellfisheries Association: Duxbury. ISSN 0730-8000; e-ISSN 1943-6319, more
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| Keywords |
Ensis directus (Conrad, 1844) sensu Abbott, 1954 [WoRMS]; Mercenaria Schumacher, 1817 [WoRMS]
Marine/Coastal |
| Author keywords |
Mercenaria, Ensis directus, alien species, Bay of Biscay, aquaculture, ballast water |
| Abstract |
We present the first record of two nonnative Bivalvia species originally from North America, Mercenaria mercenaria and Ensis directus, in the waters of the Iberian Peninsula (southwest of the Bay of Biscay). This constitutes the southernmost distribution for these species in the northeast Atlantic to date. We provide notes on the relative abundance, depth range, and substrate preferences of the species in their new habitat. The bivalve E. directus has became the dominant Ensis species along the Cantabric sandy shores it has colonized. |
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