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Identification of juveniles of grey mullet species (Teleostei: Perciformes) from Kuriat Islands (Tunisia) and evidence of gene flow between Atlantic and Mediterranean Liza aurata Trabelsi, M.; Aurelle, D; Bouriga, N.; Quignard, J.-P.; Casanova, J.-P.; Faure, É. (2008). Identification of juveniles of grey mullet species (Teleostei: Perciformes) from Kuriat Islands (Tunisia) and evidence of gene flow between Atlantic and Mediterranean Liza aurata. Cah. Biol. Mar. 49(3): 269-276 In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094

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Beschikbaar in	Auteurs
VLIZ: Open access 289609 [ download pdf ]

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Trefwoorden

Anatomical structures > Digestive system > Animal organs > Alimentary organs > Pyloric caeca Grey mullets Nucleic compounds > Nucleic acids > Dna > Mitochondrial dna Organic compounds > Organic nitrogen compounds > Heterocyclic nitrogen compounds > Porphyrins > Metalloproteins > Cytochromes > Cytochrome b Liza aurata (Risso, 1810) [WoRMS]; Mugilidae Jarocki, 1822 [WoRMS] Marien/Kust

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Auteurs		Top
Trabelsi, M. Aurelle, D Bouriga, N.	Quignard, J.-P. Casanova, J.-P. Faure, É.

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Abstract

Unidentified juveniles of a grey mullet species from the Kuriat Islands (Tunisia) were compared with Mediterranean and Atlantic candidate species (Mugil spp. or Liza spp.) using a mitochondrial gene (cytochrome b). These analyses have shown that juveniles are L. aurata individuals; phylogenetic analyses supported this grouping with very high bootstrap values and also shown evidence of gene flow between Atlantic and Mediterranean populations. Moreover, phylogenetic analyses were congruent with the analyses of the number of pyloric caeca. As mugilid juveniles for aquaculture are still obtained from wild stocks, these data provided a valuable baseline for further investigations on identification of these fish. Moreover, using the polymerase chain reaction, sufficient DNA for phylogenetic analyses can be amplified from very small portions of caudal fins and these samples can be collected without sacrificing individuals, which is one important requirement for the study of species that young fry is used for stocking lagoons and lakes. In addition, the Kuriat Islands Coasts could constitute a nursery for L. aurata which are of economical interest in Tunisia.

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