Geometric Morphometrics, Fourier Analysis Of Otolith Shape, And Nuclear-Dna Markers Distinguish Two Anchovy Species (Engraulis Spp.) In The Eastern Mediterranean Sea

Autor: İrfan Kandemir, Sinan Can Açan, Emel Ozkan, Ali Cemal Gücü, Evren Koban, Philippe Borsa, Arzu Karahan, İnci Togan, Yeşim Ak Örek
Přispěvatelé: Borsa, Philippe, Institute of Marine Science (IMS), Middle East Technical University [Ankara] (METU), Biocomplexité des écosystèmes coralliens de l'Indo-Pacifique (CoReUS2), Faculty of Science, Ankara University, Agriculture Faculty, Namik Kemal University, Department of Biology, TUBITAK Marmara Research Center : Conseil de la Recherche Scientifique et Technologique (TUBITAK), Genetic Engineering and Biotechnology Institute
Rok vydání: 2014
Předmět:
Zdroj: HAL
Fisheries Research
Fisheries Research, Elsevier, 2014, 159, pp.45-55
ISSN: 0165-7836
1872-6763
Popis: Two anchovy forms identified from their external morphology and designated as 'Silver' and 'Blue' anchovies were captured in Mersin Bay (Eastern Mediterranean Sea). Silver anchovy seemed to inhabit shallower waters (9-77 m) than Blue anchovy (majority at depths of 69-111 m). Significant differences in body shape, which was analyzed through geometric morphometrics, and in otolith shape, examined using Fourier analysis, separated the two forms. Length polymorphisms at two intron and 9 microsatellite loci showed strong genetic differences between the two forms. Mersin-Bay Blue anchovy were genetically related to Engraulis encrasicolus from the Western Mediterranean Sea. Mersin-Bay Silver anchovy possessed an original genetic composition that distinguished them from both E. encrasicolus and Engraulis albidus at the two intron loci, while presenting affinities to E. albidus based on microsatellite markers. Mersin-Bay Silver anchovy were assigned to the latter species, of which they are considered as a geographically isolated population. This is the first record of E. albidus in the Levantine basin and confirmation of its presence in the Eastern Mediterranean Sea. These results have implications for the management of anchovy populations and their habitats. (C) 2014 Elsevier B.V. All rights reserved. TUBITAK (The Scientific and Technological Research Council of Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [1080566, 1076066, 107T154, 106G005]; TUBITAK National Post-Doctoral Research Scholarship ProgramTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK); SeaDataNet-EU [026212]; UPGRADE BlackSeaScene-EU [226592] We are grateful to Dr. Yaisel J. Borrell for sharing microsatellite genotype data, to Dr. Dominique Ponton (IRD), Drs. Fusun Ozer and Dr. Devrim Tezcan (IMS-METU) for their help and advice, to Serdar Sakinan and other scientists who obtained and identified the anchovy samples, to Cihan Ayanoglu (METU) for running the Minitab programme, and to Allison Kideys (IMS-METU) for copy-editing the manuscript. This work was financed by the TUBITAK (The Scientific and Technological Research Council of Turkey) projects: Small Pelagic Fishes (1080566), TARAL (1076066), TBAG (107T154) and KAMAG TURKHAYGEN-I (106G005). A.K. was supported by TUBITAK National Post-Doctoral Research Scholarship Program, SeaDataNet-EU FP6 (026212) and UPGRADE BlackSeaScene-EU FP7 (226592) projects.
Databáze: OpenAIRE
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