FN Archimer Export Format
PT J
TI Different particle sources in a bivalve species of a coastal lagoon: evidence from stable isotopes, fatty acids, and compound-specific stable isotopes
BT 
AF Mathieu-Resuge, Margaux
   Schaal, Gauthier
   Kraffe, Edouard
   Corvaisier, Rudolph
   Lebeau, Oanez
   Lluch-Cota, Salvador E.
   Salgado García, Rosa L.
   Kainz, Martin J.
   Le Grand, Fabienne
AS 1:1,4;2:1;3:1;4:1,5;5:2;6:3;7:3;8:4;9:1,5;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Univ Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané,France
   Univ Brest, CNRS, UMS3113, IUEM, Plouzané,France
   Centro de Investigaciones Biológicas del Noroeste (CIBNOR)La Paz,Mexico
   WasserCluster Lunz-Inter-University Centre for Aquatic Ecosystem ResearchLunz am See,Austria
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané,France
C2 UBO, FRANCE
   UBO, FRANCE
   CIBNOR, MEXICO
   WASSERCLUSTER LUNZ, AUSTRIA
   CNRS, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 2.05
TC 9
UR https://archimer.ifremer.fr/doc/00501/61306/64914.pdf
LA English
DT Article
AB The trophic fate of various food sources is of central interest for ecologists, yet not well understood in coastal lagoon food webs. In this field study, fatty acids (FA), stable isotopes (SI), and compound-specific isotopic analysis (CSIA) on FA were used to investigate how diets from oceanic and local sources are retained in a bivalve species (Spondylus crassisquama; Lamarck 1819) along a transect in the Ojo de Liebre lagoon (BCS, Mexico). Results from SI and FA indicated the contribution of oceanic diatoms at the entrance of the lagoon, through 15N enrichment, and higher proportions of 16:1n-7 and 20:5n-3 in digestive glands. In the inner bay, higher abundance of 18-carbon FA (18:1n-9, 18:3n-3, 18:4n-3) suggested a higher contribution of microheterotrophs, including (dino)flagellates and ciliates, to the diet of this bivalve derived from local production. Significant spatial differences for the δ13C of FA highlighted changes in the origin of food sources. Indeed, a 13C depletion was observed in the δ13C of heterotrophic flagellates biomarkers in individuals from the innermost station, revealing that their origin in the diet of bivalves differs within the lagoon, highlighting the importance of local processes (sediment resuspension, remineralization) in the trophic functioning of the lagoon. The δ13C values of FA considered as diatoms biomarkers (16:1n-7 and 20:5n-3) were consistent, which suggests that diatoms assimilated have very similar origins throughout the lagoon. The complementary of the tracers used here allowed for a better understanding of the trophic functioning of this coastal lagoon submitted to oceanic influences. 
PY 2019
PD JUN
SO Marine Biology
SN 0025-3162
PU Springer Science and Business Media LLC
VL 166
IS 7
UT 000470739700001
DI 10.1007/s00227-019-3535-z
ID 61306
ER

EF