Traceability and discrimination among differently farmed fish : a case study on Australian murray cod

Turchini, Giovann M., Quinn, Gerry P., Jones, Paul L., Palmeri, Giorgio and Gooley, Geoff 2009, Traceability and discrimination among differently farmed fish : a case study on Australian murray cod, Journal of agricultural and food chemistry, vol. 57, no. 1, pp. 274-281.

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Title Traceability and discrimination among differently farmed fish : a case study on Australian murray cod
Author(s) Turchini, Giovann M.
Quinn, Gerry P.
Jones, Paul L.
Palmeri, Giorgio
Gooley, Geoff
Journal name Journal of agricultural and food chemistry
Volume number 57
Issue number 1
Start page 274
End page 281
Publisher American Chemical Society
Place of publication Columbus, Oh.
Publication date 2009-01-14
ISSN 0021-8561
1520-5118
Keyword(s) aquaculture
chemiometric
discriminant function analysis
fatty acids
Maccullochella peelii peelii
stable isotopes
product tracing
Summary The development of traceability methods to distinguish between farmed and wild-caught fish and seafood is becoming increasingly important. However, very little is known about how to distinguish fish originating from different farms. The present study addresses this issue by attempting to discriminate among intensively farmed freshwater Murray cod originating from different farms (indoor recirculating, outdoor floating cage, and flow through systems) in different geographical areas, using a combination of morphological, chemical, and isotopic analyses. The results show that stable isotopes are the most informative variables. In particular, δ13C and/or δ15N clearly linked fish to a specific commercial diet, while δ18O linked fish to a specific water source. Thus, the combination of these isotopes can distinguish among fish originating from different farms. On the contrary, fatty acid and tissue proximate compositions and morphological parameters, which are useful in distinguishing between farmed and wild fish, are less informative in discriminating among fish originating from different farms.
Language eng
Field of Research 070401 Aquaculture
Socio Economic Objective 839902 Fish Product Traceability and Quality Assurance
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2009
Copyright notice ©2009, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30021027

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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