FN Archimer Export Format
PT J
TI Common carp (Cyprinus carpio) obtain omega-3 long-chain polyunsaturated fatty acids via dietary supply and endogenous bioconversion in semi-intensive aquaculture ponds
BT 
AF Pilecky, Matthias
   Mathieu-Resuge, Margaux
   Závorka, Libor
   Fehlinger, Lena
   Winter, Katharina
   Martin-Creuzburg, Dominik
   Kainz, Martin J.
AS 1:1,2;2:1,3,4;3:1;4:1,6;5:1;6:5;7:1,2;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 WasserCluster – Biologische Station Lunz, Inter-University Center for Aquatic Ecosystem Research, Dr. Carl-Kupelwieser Promenade 5, 3293 Lunz/See, Austria
   Donau-Universität Krems, Department for Biomedical Research, Dr. Karl-Dorrek-Straße 30, 3500 Krems, Austria
   University of Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzane, France
   Ifremer, Laboratoire de Biologie Halieutique, ZI Pointe du Diable - CS 10070, 29 280 Plouzané, France
   BTU Cottbus-Senftenberg, Department of Aquatic Ecology, Research Station Bad Saarow, Seestraße 45, 15526 Bad Saarow, Germany
   University of Vic - Central University of Catalonia, Aquatic Ecology Group, Carrer de la Sagrada Família, 7, 08500 Vic, Barcelona, Spain
C2 WASSERCLUSTER, AUSTRIA
   UNIV KREMS, AUSTRIA
   UBO, FRANCE
   IFREMER, FRANCE
   BTU COTTBUS-SENFTENBERG, GERMANY
   UNIV CENT CATALONIA (UVIC), SPAIN
SI BREST
SE PDG-RBE-HALGO-LBH
UM LEMAR
   DECOD
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-europe
   copubli-univ-france
IF 4.5
TC 6
UR https://archimer.ifremer.fr/doc/00788/90029/95606.pdf
LA English
DT Article
DE ;Aquaculture;Fatty acid bioconversion;Compound-specific stable isotope analysis;Deuterium;DHA;Fish ecophysiology
AB Omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA) are essential micronutrients for aquatic consumers. Synthesized by aquatic primary producers, n-3 LC-PUFA are transferred across trophic levels and may eventually end up accumulating in fish. However, if short in dietary supply, fish may also biosynthesize n-3 LC-PUFA from dietary precursors (i.e., n-3 C18-PUFA). We applied compound-specific hydrogen stable isotope analysis (CSIA) of fatty acids to investigate sources and metabolic processes of n-3 LC-PUFA, and in particular of docosahexaenoic acid (22:6n-3, DHA), in Common Carp (Cyprinus carpio) raised in semi-intensive aquaculture ponds. Carp were feeding on natural pond zooplankton and benthic macroinvertebrates rich in n-3 LC-PUFA and cereal-based pellet feeds rich in C18-PUFA. Results provide isotopic evidence that carp obtained a significant amount of dietary lipids and nitrogen from added cereal-based feeds, while n-3 LC-PUFA were generally acquired by feeding on benthic macroinvertebrates and zooplankton. However, DHA retained in carp was also generated endogenously via bioconversion from dietary PUFA precursors, such as EPA. DHA was isotopically lighter than EPA and likely not supplied in sufficient quantities to meet the physiological requirements for DHA in carp. Our data show that depending on the natural abundance of dietary DHA in these eutrophic ponds, farmed carp can obtain DHA by two different pathways; i.e., directly via dietary uptake and indirectly via bioconversion. This field study highlights the importance of dietary LC-PUFA supply in eutrophic aquatic ecosystems and the ability of carp to biosynthesize highly valuable LC-PUFA, eventually also benefiting human health. 
PY 2022
PD DEC
SO Aquaculture
SN 0044-8486
PU Elsevier BV
VL 561
UT 000848344900013
DI 10.1016/j.aquaculture.2022.738731
ID 90029
ER

EF