Application of stable isotope analysis to differentiate shrimp extracted by industrial fishing or produced through aquaculture practices.

Gamboa Delgado, Julián y Molina Poveda, César y Godínez Siordia, Daniel Enrique y Villarreal Cavazos, David Alonso y Ricque Marie, Denis y Cruz Suárez, Lucía Elizabeth (2014) Application of stable isotope analysis to differentiate shrimp extracted by industrial fishing or produced through aquaculture practices. Canadian journal of fisheries and aquatic sciences, 71. pp. 1520-1528. ISSN 076-652X

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CJFAS 2014 Stable Isotopes Shrimp Prod Method (1).pdf

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Resumen

Carbon and nitrogen stable isotope values were determined in Pacific white shrimp (Litopenaeus vannamei) with the objective of discriminating animals produced through aquaculture practices from those extracted from the wild. Farmed animals were collected at semi-intensive shrimp farms in Mexico and Ecuador. Fisheries-derived shrimps were caught in different fishing areas representing two estuarine systems and four open sea locations in Mexico and Ecuador. Carbon and nitrogen stable isotope values (13CVPDB and 15NAIR) allowed clear differentiation of wild from farmed animals. 13CVPDB and 15NAIR values in shrimps collected in the open sea were isotopically enriched (−16.99‰ and 11.57‰), indicating that these organisms belong to higher trophic levels than farmed animals. 13CVPDB and 15NAIR values of farmed animals (−19.72‰ and 7.85‰, respectively) partially overlapped with values measured in animals collected in estuaries (−18.46‰ and 5.38‰, respectively). Canonical discriminant analysis showed that when used separately and in conjunction, 13CVPDB and I5NAIR values were powerful discriminatory variables and demonstrate the viability of isotopic evaluations to distinguish wild-caught shrimps from aquaculture shrimps. Methodological improvements will define a verification tool to support shrimp traceability protocols.

Tipo de elemento: Article
Materias: S Agricultura > SH Acuacultura / Pesca
Divisiones: Ciencias Biológicas
Usuario depositante: Dra. Lucia Elizabeth Cruz Suarez
Creadores:
CreadorEmailORCID
Gamboa Delgado, Juliánjgam97@yahoo.comNO ESPECIFICADO
Molina Poveda, CésarNO ESPECIFICADONO ESPECIFICADO
Godínez Siordia, Daniel EnriqueNO ESPECIFICADONO ESPECIFICADO
Villarreal Cavazos, David AlonsoNO ESPECIFICADONO ESPECIFICADO
Ricque Marie, DenisNO ESPECIFICADONO ESPECIFICADO
Cruz Suárez, Lucía ElizabethNO ESPECIFICADONO ESPECIFICADO
Fecha del depósito: 05 Sep 2016 20:08
Última modificación: 05 Dic 2016 16:50
URI: http://eprints.uanl.mx/id/eprint/11164

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