Genetic Differentiation between Fake Abalone and Genuine Haliotis Species Using the Forensically Informative Nucleotide Sequencing (FINS) Method
2011
Ha, Wai Y. | Reid, David G. | Kam, Wan L. | Lau, Yuk Y. | Sham, Wing C. | Tam, Silvia Y.K. | Sin, Della W.M. | Mok, Chuen S.
Abalones (Haliotis species) are a popular delicacy and commonly preserved in dried form either whole or in slices or small pieces for consumption in Asian countries. Driven by the huge profit from trading abalones, dishonest traders may substitute other molluscan species for processed abalone, of which the morphological characteristics are frequently lost in the processed form. For protection of consumer rights and law enforcement against fraud, there is a need for an effective methodology to differentiate between fake and genuine abalone. This paper describes a method (validated according to the international forensic guidelines provided by SWGDAM) for the identification of fake abalone species using forensically informative nucleotide sequence (FINS) analysis. A study of the local market revealed that many claimed “abalone slice” samples on sale are not genuine. The fake abalone samples were found to be either volutids of the genus Cymbium (93%) or the muricid Concholepas concholepas (7%). This is the first report of Cymbium species being used for the preparation and sale as “abalone” in dried sliced form in Hong Kong.
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