FN Archimer Export Format
PT J
TI Commercial traceability of Arapaima spp. fisheries in the Amazon Basin: can biogeochemical tags be useful?
BT 
AF Pereira, Luciana A.
   Santos, Roberto V.
   Hauser, Marília
   Duponchelle, Fabrice
   Carvajal, Fernando
   Pecheyran, Christophe
   Bérail, Sylvain
   Pouilly, Marc
AS 1:1;2:1;3:2,4;4:3,4;5:5;6:6;7:6;8:3;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Laboratorio de Geochronologia, Universidade de Brasília, Brasília,5 70910-900, Brazil
   Laboratory of Ichthyology and Fishery, Department of Biology, Universidade Federal de Rondônia, Porto Velho, Brazil
   Institut de Recherche pour le Développement, IRD, Unité Mixte de Recherche, Biologie des Organismes et Écosystèmes Aquatiques, (UMR BOREA – MNHN, CNRS-7208, UPMC, UCBN, IRD-207), 75005 Paris, France
   LMI-EDIA (Laboratoire Mixte International – Evolution et Domestication de l’Ichtyofaune Amazonienne)
   ULRA, Universidad Mayor de San Simon, Cochabamba, Bolivia
   Université de Pau et des Pays de l'Adour/CNRS, LCABIE-IPREM, Pau, France
C2 UNIV BRASILIA, BRAZIL
   UNIV FED RONDONIA, BRAZIL
   IRD, FRANCE
   IRD, FRANCE
   ULRA, BOLIVIA
   UNIV PAU & PAYS ADOUR, FRANCE
TC 0
UR https://archimer.ifremer.fr/doc/00473/58419/60990.pdf
   https://archimer.ifremer.fr/doc/00473/58419/64663.pdf
LA English
DT Article
AB The development of analytical tools to determine the origin of fish is useful to better understand patterns of habitat use and to monitor, manage and control fisheries, including certification of food origin. The application of isotopic procedures to study fish calcified structures (scales, vertebrae, and otoliths) may provide robust information about the fish geographic origin and environmental living conditions. In this study, we used Sr and C isotopic markers recorded in otoliths of wild and farmed commercialized pirarucu (Arapaima spp.) to evaluate their prediction potential to trace the fish origin. Wild and farm fish specimens, as well as food used for feeding pirarucu in captivity, were collected from different sites. Isotope analyses of otoliths performed by IRMS (δ13C) and LAfs-MC-ICPMS (87Sr/86Sr) were compared to the isotopic composition of water and of the food given to the fish in the farms. Wild fish specimens that lived in environments with the largest fluctuation of river water Sr isotope ratios over time presented the largest Sr isotope variations in otoliths. A quadratic discriminant analysis on otolith isotopic composition provided 58% of correct classification for fish production (wild and farmed) and 76% of correct classification for the fish region. Classification accuracy for region varied between 100% and 29% for the Madeira and the lower Amazon fishes, respectively. Overall, this preliminary trial is not yet fully satisfying to be applied as a commercial traceability tool. However, given the importance of Arapaima spp. for food security and the generation of economic resources for millions of people in the Amazon basin, further analyses are needed to increase the discrimination performance of these biogeographical tags. 
PY 2019
SO Biogeosciences
SN 1726-4189
PU Copernicus GmbH
VL 16
IS 8
BP 1781
EP 1797
DI 10.5194/bg-2018-471
ID 58419
ER

EF