FN Archimer Export Format PT J TI Long-term monitoring of individual fish triggering activity on a self-feeding system: An example using European sea bass (Dicentrarchus labrax) BT AF COVES, Denis BEAUCHAUD, M ATTIA, J DUTTO, Gilbert BOUCHUT, C BEGOUT, Marie-Laure AS 1:1;2:2;3:2;4:1;5:2;6:1; FF 1:PDG-DOP-DCM-PM-APOI;2:;3:;4:PDG-DOP-DCM-PM-APOI;5:;6:PDG-DOP-DCN-AGSAE-CRELA; C1 IFREMER, Stn Expt Aquaculture, Lab Rech Piscicole Mediterranee, F-34250 Palavas Les Flots, France. Univ St Etienne, Fac Sci & Tech, Lab Biol Anim & Appl, F-42023 St Etienne 02, France. C2 IFREMER, FRANCE UNIV ST ETIENNE, FRANCE SI PALAVAS LA ROCHELLE SE PDG-DOP-DCM-PM-APOI PDG-DOP-DCN-AGSAE-CRELA IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 2.081 TC 40 UR https://archimer.ifremer.fr/doc/2006/publication-1341.pdf LA English DT Article DE ;PIT tag detection antenna;Individual triggering activity;Self feeding;Sea bass AB In two experiments, a computerized on-demand feeding system coupled with a PIT tag monitoring device was used to continuously record the triggering activity by ca. 50 individual sea bass for 55 days (Exp. 1, initial average body weight and coefficient of variation, CV: 299 g, 15%) and 69 days (Exp. 2, 157 g, 13%). Each group was stocked in 1 m(3) tanks and exposed to a water temperature of 21 +/- 1 degrees C and a light regime of 16:8 LD. Only 5% of the triggering activity was not associated with simultaneous PIT tag detection. Although each individual was detected via PIT tag during the experiment, only 67% and 74% of the fish actuated the trigger at least once in Exp. 1 and Exp. 2, respectively. Moreover, only two fish in Exp. 1 and one fish in Exp. 2 accounted for 82% (43 + 39) and 77% of the total triggering activity, respectively. These three, high-triggering individuals did not exhibit a higher specific growth rate or agonistic behavior as observed by video monitoring. Indeed, zero-triggering fish had either a slightly higher SGR (Exp. 1) or a higher final body weight (Exp. 2) compared with low- and high-triggering fish. PY 2006 PD MAR SO Aquaculture SN 0044-8486 PU Elsevier VL 253 IS 1-4 UT 000236898700046 BP 385 EP 392 DI 10.1016/j.aquaculture.2005.08.015 ID 1341 ER EF