Borsa Philippe auteur aut IRD Collet Adeline auteur aut IRD Durand Jean-Dominique auteur aut IRD text journalArticle eng text/pdf born digital access Morphometric, allozymic, and mitochondrial DNA variability previously indicated that the Mediterranean anchovy Engraulis encrasicolus includes two distinct forms, one of the inshore habitat, and the other one of the open-sea habitat. Here, we showed that the two forms significantly differ by several morphological characters. To test the hypothesis, proposed previously, that the two forms are distinct biological species, we used length-polymorphic, exon-primed intronic PCR markers from the creatine-kinase multigenic family and genetically characterized anchovy samples collected in the northwestern Mediterranean and in the eastern Atlantic. Large genetic differences were found between the two forms (Weir and Cockerham's (θ) over cap = 0.397 to 0.586). In contrast. geographic variation in the open-sea forin at the scale of the eastern Atlantic/northwestern Mediterranean was weak ((θ) over cap= -0.006 to 0.042). This again demonstrated considerable restriction to nuclear gene flow between inshore and open-sea anchovy populations. In addition to previous results from allozymes this confirmed their status as distinct biological species, namely Engraulis albidus sp. nov. and Engraulis encrasicolus L. (C) 2004 Academie des sciences. Published by Elsevier SAS. All rights reserved. specialized gene flow reproductive isolation Atlantic Mediterranean Engraulis spp morphometrics systematics 034 327 12 1113-1123 2004 1631-0691 https://www.documentation.ird.fr/hor/fdi:010041602 10.1016/j.crvi.2004.09.003 1631-0691 [F B010041602] https://www.documentation.ird.fr/hor/fdi:010041602 https://www.documentation.ird.fr/intranet/publi/depot/0001/010041602.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2006-03-29 2017-08-23 fdi:010041602 fre