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Identification of Ensis siliqua Samples and Establishment of the Catch Area Using a Species-Specific Microsatellite Marker

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European Council Regulation 104/2000 states that fishery products must be labeled to indicate commercial designation of species, the production method, and the catch area. Therefore, traceability of seafood implies knowledge of the species offered to retail and their origin. Ensis siliqua is a bivalve intensively fished in Europe and sold in fresh and canned forms. Although several published methods clearly differentiate Ensis genus species, none of those assess the origin of the commercial samples. In the present study, a microsatellite marker (Esi-UDC3055F) was developed to establish the catch area of E. siliqua samples. Amplification yielded a fragment of 275 or 302 base pairs, depending on whether they were Iberian or Irish populations. The usefulness of this method was also assessed in commercial samples. The results of this study provide a reliable methodology for the identification of catch area in European E. siliqua commercial samples. The coupling of this methodology with existing techniques for razor clam species identification provides a powerful tool for traceability and labeling enforcement.
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Document Type: Research Article

Publication date: May 1, 2012

More about this publication?
  • The Journal of AOAC INTERNATIONAL publishes refereed papers and reviews in the fields of chemical, biological and toxicological analytical chemistry for the purpose of showcasing the most precise, accurate and sensitive methods for analysis of foods, food additives, supplements and contaminants, cosmetics, drugs, toxins, hazardous substances, pesticides, feeds, fertilizers and the environment available at that point in time. The scope of the Journal includes unpublished original research describing new analytical methods, techniques and applications; improved approaches to sampling, both in the field and the laboratory; better methods of preparing samples for analysis; collaborative studies substantiating the performance of a given method; statistical techniques for evaluating data. The Journal will also publish other articles of general interest to its audience, e.g., technical communications; cautionary notes; comments on techniques, apparatus, and reagents.
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