Genetic, morphometric and meristic analyses of first Acanthurus monroviae specimens recorded in Maltese waters (Central Mediterranean)
This paper documents the occurrence and analyses of Acanthurus monroviae in Maltese waters. A first specimen was collected from the Maltese waters on the 28th September 2013 and a second specimen was caught on the 13th October 2015. This species is non-indigenous in the Mediterranean as it is native...
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Veröffentlicht in: | Cybium 2016, Vol.40 (4), p.338-340 |
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Sprache: | eng |
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Zusammenfassung: | This paper documents the occurrence and analyses of Acanthurus monroviae in Maltese waters. A first specimen was collected from the Maltese waters on the 28th September 2013 and a second specimen was caught on the 13th October 2015. This species is non-indigenous in the Mediterranean as it is native to the eastern tropical Atlantic. Apart from undertaking identification through meristic and morphometric measurements of the specimens, genetic analyses of 2880 bp from mtDNA genes were carried out to confirm the species identity. The Monrovia Surgeonfish alien presence was first reported from visual and morphometric analyses in the Mediterranean off the Spanish coast in 1981, with subsequent records in the eastern Levant basin, the coast of Algeria, off the Tunisian coast, in Hellenic waters and an unconfirmed visual record from the Maltese waters. The latter is confirmed through these detailed analyses of the specimens collected.Original Abstract: Analyses genetiques, morphometriques et meristiques des premiers specimens d'Acanthurus monroviae repertories dans les eaux de l'archipel maltais (Mediterranee centrale). Cette publication documente l'apparition d'Acanthurus monroviae dans les eaux maltaises. Un premier specimen a ete collecte dans ces memes eaux le 28 septembre 2013 tandis qu'un second a ete capture le 13 octobre 2015. Cette espece n'est pas indigene de la Mediterranee mais est native de l'est de l'Atlantique tropical. L'identification des specimens, grace a des mesures meristiques et morphometriques, a ete confirmee par des analyses genetiques de 2880 pb issues de genes de l'ADNmt. La presence inhabituelle du chirurgien de Monrovia avait ete signalee par des observations et des analyses morphometriques au large des cotes espagnoles en 1981, puis dans l'est du bassin Levantin (Mediterranee orientale), le long des cotes algeriennes et tunisiennes ainsi que dans les eaux helleniques. Une observation non confirmee en 2015 dans les eaux maltaises est maintenant certifiee par les analyses detaillees des specimens collectes. |
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ISSN: | 0399-0974 |