Andréfouët Serge auteur aut IRD Van Wynsberge S. auteur aut IRD Fauvelot Cécile auteur aut IRD Bruckner A. W. auteur aut IRD Remoissenet G. auteur aut IRD text journalArticle eng text/pdf born digital access The giant clam subfamily Tridacninae (family Cardiidae) is an important group of bivalve molluscs found throughout the Red Sea and Indo-Pacific, from East Africa to the Eastern Pacific biogeographic region. The Tridacna genus is currently revised with numerous cryptic species identified with molecular markers. New Tridacna records from the fringe of the known distribution areas are extremely useful to identify genetically unique species, geographic ranges, and to examine processes associated with species differentiation. While Tridacna maxima is abundant in French Polynesia (Central South Pacific Ocean) the larger fluted giant clam Tridacna squamosa was formerly reported only in the Austral Islands in the south. Following a recent survey that spanned 23 islands and atolls of the Society, Tuamotu and Gambier Archipelagos, the presence of T. squamosa between the Cook Islands and Pitcairn Islands is confirmed using both morphological and molecular information, suggesting a relic distribution across the Central Pacific Ocean. Tridacna squamosa is rare, but present throughout Tuamotu and Gambier. However, it remained undetected from the Society Islands, probably due to historical over-fishing. This species is valued by local inhabitants, and is sought after mainly as gifts and also for a limited local shell trade. The rarity of T. squamosa may call for conservation measures in the near future. specialized Society Islands giant clam Fakarava UNESCO Biosphere Reserve Central Pacific Tridacna fishery management PACIFIQUE SOCIETE ILES TUAMOTU GAMBIER POLYNESIE FRANCAISE 040 036 34 4 277-284 2014 1323-5818 https://www.documentation.ird.fr/hor/fdi:010062666 10.1080/13235818.2014.940662 1323-5818 [F B010062666] https://www.documentation.ird.fr/hor/fdi:010062666 https://www.documentation.ird.fr/intranet/publi/2014/12/010062666.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2015-01-12 2021-09-25 fdi:010062666 fre