FN Archimer Export Format PT J TI Geographical variation in sound production in the anemonefish Amphiprion akallopisos BT AF PARMENTIER, E LAGARDERE, Jean-Paul VANDEWALLE, P FINE, M AS 1:1;2:2,4;3:1;4:3; FF 1:;2:;3:;4:; C1 Univ Liege, Inst Chim, Lab Morphol Fonct & Evolut, B-4000 Liege, Belgium. CNRS, IFREMER, CREMA LHoumeau, F-17137 Lhoumeau, France. Virginia Commonwealth Univ, Dept Biol, Richmond, VA 23284 USA. C2 UNIV LIEGE, BELGIUM CNRS, FRANCE UNIV VIRGINIA COMMONWEALTH, USA IFREMER, FRANCE SI LA ROCHELLE SE PDG-DOP-DCN-AGSAE-CREMA IN WOS Ifremer jusqu'en 2018 copubli-france copubli-europe copubli-int-hors-europe IF 3.51 TC 38 UR https://archimer.ifremer.fr/doc/2005/publication-3630.pdf LA English DT Article DE ;Speciation;Dialect;Geographic variation;Pomacentridae;Sound production AB Because of pelagic-larval dispersal, coral-reef fishes are distributed widely with minimal genetic differentiation between populations. Amphiprion akallopisos, a clownfish that uses sound production to defend its anemone territory, has a wide but disjunct distribution in the Indian Ocean. We compared sounds produced by these fishes from populations in Madagascar and Indonesia, a distance of 6500 km. Differentiation of agonistic calls into distinct types indicates a complexity not previously recorded in fishes' acoustic communication. Moreover, various acoustic parameters, including peak frequency, pulse duration, number of peaks per pulse, differed between the two populations. The geographic comparison is the first to demonstrate 'dialects' in a marine fish species, and these differences in sound parameters suggest genetic divergence between these two populations. These results highlight the possible approach for investigating the role of sounds in fish behaviour in reproductive divergence and speciation. PY 2005 PD AUG SO Proceedings of the Royal society of London (B) SN 0962-8452 PU Royal Society of London VL 272 IS 1573 UT 000231703400010 BP 1697 EP 1703 DI 10.1098/rspb.2005.3146 ID 3630 ER EF