FN Archimer Export Format
PT J
TI Diets of spiny lobsters from Mahé Island reefs, Seychelles reefs inferred by trophic tracers
BT 
AF Sardenne, Fany
   Bodin, Nathalie
   Barret, Leo
   Blamey, Laura
   Govinden, Rodney
   Gabriel, Kettyna
   Mangroo, Rosabella
   Munaron, Jean-Marie
   LE LOCH, Francois
   Bideau, Antoine
   Le Grand, Fabienne
   Sabino, Magali
   Bustamante, Paco
   Rowat, David
AS 1:1;2:2,3;3:4;4:5;5:2;6:2;7:2;8:7;9:7;10:8;11:1;12:6;13:6;14:4;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;
C1 Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
   Seychelles Fishing Authority (SFA), Victoria, Mahé, Seychelles
   IRD (French Research Institute for Sustainable Development), Victoria, Mahé, Seychelles
   Marine Conservation Society Seychelles (MCSS), BeauVallon, Mahé, Seychelles
   James Michel Blue Economy Research Institute (BERI), University of Seychelles, Anse Royale, Mahé, Seychelles
   Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS, La Rochelle Université, 2 rue Olympe de Gouges, 17 000 La Rochelle, France
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
C2 CNRS, FRANCE
   SEYCHELLES FISHING AUTHORITY (SFA), SEYCHELLES
   IRD, SEYCHELLES
   MCSS, SEYCHELLES
   UNIV SEYCHELLES, SEYCHELLES
   UNIV LA ROCHELLE, FRANCE
   IRD, FRANCE
   UBO, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 2.166
TC 3
UR https://archimer.ifremer.fr/doc/00676/78848/81122.pdf
LA English
DT Article
DE ;Fatty acids;Stable isotopes;Bayesian mixing model;Panulirus spp;Tropical reef habitats;Western Indian Ocean
AB Spiny lobsters (Panulirus longipes, P. penicillatus and P. versicolor) are an important resource in Seychelles, where they inhabit coastal carbonate and granite reefs that have been impacted by multiple coral bleaching events over the past two decades. Little is known about their biology and ecology in this region. Interspecific competition for food resources was previously suggested, but no quantitative data on the diets of spiny lobsters were available. Using carbon and nitrogen stable isotope compositions and fatty acid profiles of three spiny lobster species and their potential prey, a Bayesian mixing model for diet estimation was applied to compare the diet proportions of spiny lobsters among species and between reef types (carbonate and granite reefs). Model outputs suggested the three lobster species consume mainly crustaceans (Anomoura hermit crabs; half of the diet), then Echinoidea (sea urchins), algae and molluscs. P. versicolor was found to consume slightly more molluscs and algae than the two other studied species, which was consistent with its lower trophic level (2.4 vs 2.8 for the two other species). Trophic level did not increase with carapace length of spiny lobsters, but large individuals had higher carbon isotopic values suggesting that they might feed closer to the coast or more on detritus feeders than their smaller congeners. Diets of spiny lobsters were fairly similar between carbonate and granite reefs, except that lobster inhabiting granite reefs consumed more sea urchins. While our overall findings were consistent with gut contents of Panulirus spp. from other world regions, they should be confirmed, as the discrimination of several prey based on trophic tracers was low, which increased mixing model uncertainty. 
PY 2021
PD FEB
SO Regional Studies In Marine Science
SN 2352-4855
PU Elsevier BV
VL 42
UT 000640498100007
DI 10.1016/j.rsma.2021.101640
ID 78848
ER

EF