FN Archimer Export Format PT J TI Jellyfish as an alternative source of food for opportunistic fishes BT AF MARQUES, Raquel BOUVIER, Corinne DARNAUDE, Audrey M. MOLINERO, Juan-Carlos PRZYBYLA, Cyrille SORIANO, Solenn TOMASINI, Jean-Antoine BONNET, Delphine AS 1:1,2;2:1;3:1;4:3;5:4;6:5;7:1;8:1; FF 1:;2:;3:;4:;5:PDG-RBE-MARBEC-L3AS;6:;7:;8:; C1 Univ Montpellier, Lab MARBEC, CC093,Pl Eugene Bataillon, F-34095 Montpellier 05, France. Univ Algarve, Fac Ciencias & Tecnol, Campus Gambelas, P-8005139 Faro, Portugal. GEOMAR Helmholtz Ctr Ocean Res Kiel, Marine Ecol Food Webs, Duesternbrooker Weg 20, D-24105 Kiel, Germany. Univ Montpellier, IRD, IFREMER, UMR MARBEC,CNRS, Chemin Maguelone, F-34250 Palavas Les Flots, France. Univ Montpellier, Stn Mediterraneenne Environm Littoral, 2 Rue Chantiers, F-34200 Sete, France. C2 UNIV MONTPELLIER, FRANCE UNIV ALGARVE, PORTUGAL IFM GEOMAR, GERMANY IFREMER, FRANCE UNIV MONTPELLIER, FRANCE SI PALAVAS SE PDG-RBE-MARBEC-L3AS UM MARBEC IN WOS Ifremer jusqu'en 2018 copubli-france copubli-europe copubli-univ-france IF 1.937 TC 21 UR https://archimer.ifremer.fr/doc/00349/46018/46026.pdf LA English DT Article DE ;Aurelia sp.;Predation;Fish;Sparus aurata;Ingestion rate;Energy pathways AB Although scientific interest on jellyfish ecology has substantially increased in the last decades, little is known on the role of potential predators shaping their population dynamics. Jellyfish were long considered as ‘dead ends’ within food webs, and therefore overlooked as potential food source for higher trophic levels, e.g. fishes. Here this question is tackled by using comprehensive laboratory experiments assessing fish predation on jellyfish. The approach included all the life stages (polyps, ephyrae and medusa) of Aurelia sp. versus more traditional aquaculture feeds in an easily farmed opportunistic fish, the gilthead seabream Sparus aurata (L.). Results revealed that all life stages of Aurelia sp. were accepted as a source of food by S. aurata, whose grazing pressure varies depending on the jellyfish life stage. Higher ingestion rates were observed on young stages (i.e. small medusa) indicating their higher vulnerability to fish predation and the potential negative impact this may have on Aurelia sp. population dynamics. These results provide new insights on the so far underestimated role fish predation can have on jellyfish population dynamics. In particular, opportunistic fish species, such as S. aurata may contribute to control jellyfish blooms, through top-down regulations of jellyfish biomass. PY 2016 PD DEC SO Journal Of Experimental Marine Biology And Ecology SN 0022-0981 PU Elsevier Science Bv VL 485 UT 000386190300001 BP 1 EP 7 DI 10.1016/j.jembe.2016.08.008 ID 46018 ER EF