FN Archimer Export Format PT J TI A novel method to individually track spawning females in aquaculture tanks using the European sea bass (Dicentrarchus labrax) as a model BT AF Lallement, Stephane Bengue, Allan Geffroy, Benjamin AS 1:1;2:3;3:2; FF 1:PDG-RBE-MARBEC-LSEA;2:;3:PDG-RBE-MARBEC-LAAAS; C1 Laboratoire Service d'Expérimentations Aquacoles, Ifremer, Palavas Les Flots, France MARBEC, Univ Montpellier, Ifremer, IRD, CNRS Palavas, France MARBEC, Univ Montpellier, Ifremer, IRD, CNRS Palavas, France C2 IFREMER, FRANCE IFREMER, FRANCE UNIV MONTPELLIER, FRANCE SI PALAVAS SE PDG-RBE-MARBEC-LSEA PDG-RBE-MARBEC-LAAAS UM MARBEC IN WOS Ifremer UMR WOS Cotutelle UMR copubli-france copubli-univ-france IF 4.5 TC 1 UR https://archimer.ifremer.fr/doc/00747/85857/91053.pdf LA English DT Article DE ;Natural spawning;Spawn traceability;Identification of breeders AB Mass reproduction is widely used in fish farms because it is relatively easy and inexpensive. It also enables the development of mass selection programmes that provide gains for traits with high heritability. The main weakness of this approach is that it is currently impossible to know which females participated in reproductive events, unless by conducting expensive genomic experiments. We tested oviduct-inserted floating passive integrated transponder tags as a new method to detect (i) the identity of spawners and (ii) the timing of spawning. We first conducted a preliminary experiment using four small tanks (1.5 m3) each containing one male and one female tracked by infrared video cameras to test the experimental device. We then tested it in “real” aquaculture conditions, using a bigger tank (10 m3) containing 89 adult fish. Results showed that this tracking system accurately identified the timing of spawning of individual fish. We confirm that European sea bass preferentially spawn at sunrise or sunset. This proof-of-concept developed for one commercially important fish species could also be used for novel species of interest for aquaculture, for example, to determine the exact timing of spawning after hormonal treatment of novel species. PY 2022 PD MAR SO Aquaculture SN 0044-8486 PU Elsevier BV VL 551 UT 000790047300027 DI 10.1016/j.aquaculture.2022.737937 ID 85857 ER EF