Cod and Alaska pollack

From: Richard Chivers (richard@fishonline.co.uk)
Date: Wed Oct 17 2007 - 09:53:16 PDT

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    Dear All,

    A sample of cod was analysed by a UK Public Analyst using a DNA sequencing and he found evidence of DNA of more than one species. They have confirmed cod, but also detected Alaskan pollack, and possibly one more species. The sample was just a fillet of fish, presumably cod, taken at retail.

    Does anyone know of cod interbreeding with Alaska Pollack. The sample was taken in the UK and I would normally expect this to indicate Gadus morhua but it is possible that Gadus macrocephalus had sneaked in some how.

    Thank you in advance.

    Richard Chivers
    Seafood Audit International

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