title: Applicability of stable C and N isotope analysis in inferring the geographical origin and authentication of commercial fish (Mackerel, Yellow Croaker and Pollock).
abstract: Globalisation of seafood and aquaculture products and their convenient marketing worldwide, increases the possibility for the distribution of mislabelled products; thereby, underlining the need to identify their origin. Stable isotope analysis is a promising approach to identify the authenticity and traceability of seafood and aquaculture products. In this investigation, we measured carbon and nitrogen stable isotope ratios (δ(13)C and δ(15)N) of three commercial fish, viz. Mackerel, Yellow Croaker and Pollock, originating from various countries. Apart from the species-dependent variation in the isotopic values, marked differences in the δ(13)C and δ(15)N ratios were also observed with respect to the country of origin. This suggests that C and N isotopic signatures could be reliable tools to identify and trace the origin of commercial fish.
authors.affiliation: Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan 425-791, Republic of Korea.
authors.forename: Heejoong
authors.initials: H
authors.lastname: Kim
authors.affiliation: Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan 425-791, Republic of Korea.
authors.forename: K
authors.initials: K
authors.lastname: Suresh Kumar
authors.affiliation: Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan 425-791, Republic of Korea. Electronic address: shinkh@hanyang.ac.kr.
authors.forename: Kyung-Hoon
authors.initials: KH
authors.lastname: Shin
mesh_terms: D000818:Animals; D017756:Aquaculture; D002247:Carbon Isotopes / Q000737:chemistry; D005524:Food Technology / Q000379:methods*; D048388:Gadiformes / Q000378:metabolism*; D005843:Geography; D009587:Nitrogen Isotopes / Q000737:chemistry; D010473:Perciformes / Q000378:metabolism*; D017747:Seafood / Q000032:analysis*
chemical_list: D002247:Carbon Isotopes; D009587:Nitrogen Isotopes
keywords: Fish; Origin; Traceability; δ(13)C; δ(15)N