Article

Marine Biology

, Volume 129, Issue 3, pp 477-487

International Study on Artemia. LVII. Morphological and molecular characters suggest conspecificity of all bisexual European and North African Artemia populations

  • G. V. TriantaphyllidisAffiliated withLaboratory of Aquaculture and Artemia Reference Center, University of Ghent, Rozier 44, B-9000 Ghent, Belgium
  • , G. R. J. CrielAffiliated withDepartment of Anatomy, Embryology and Histology, Section of Human Anatomy and Embryology, University of Ghent, Godshuizenlaan 4, B-9000 Ghent, Belgium
  • , T. J. AbatzopoulosAffiliated withFaculty of Sciences, School of Biology, Department of Genetics, Development and Molecular Biology, Aristotle University of Thessaloniki, GR-54006 Thessaloniki, Greece
  • , K. M. ThomasAffiliated withSchool of Biological Sciences, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, Wales, United Kingdom
  • , J. PelemanAffiliated withKeygene N. V., Agro Business Park 90, P.O. Box 216, 6700 AE Wageningen, The Netherlands
  • , J. A. BeardmoreAffiliated withSchool of Biological Sciences, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, Wales, United Kingdom
  • , P. SorgeloosAffiliated withLaboratory of Aquaculture and Artemia Reference Center, University of Ghent, Rozier 44, B-9000 Ghent, Belgium

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Abstract

A scanning electron microscopy (SEM) study of bisexual Artemia populations revealed that populations representing the species A. franciscana, A. persimilis, A. urmiana, A. sinica and a recently described species from Kazakhstan have a pair of spine-like outgrowths at the basal parts of their penes, whereas populations from southern Europe and North Africa (i.e. Mediterranean populations) lack these spine-like outgrowths. Allozyme and DNA polymorphisms, detected by allozyme starch gel electrophoresis and AFLP fingerprinting, respectively, suggested conspecificity of the studied populations from the broader Mediterranean basin. Male specimens from the collection of the Natural History Museum of London (UK) of the extinct A. salina population from Lymington lack spine-like outgrowths at the basal parts of the penes. This finding, based on a taxonomic character which is quite reliable, suggests conspecificity of A. salina from Lymington and the present bisexual Artemia populations from the Mediterranean basin, grouped under the binomen A. tunisiana.