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Phylogeography of the sea urchin Paracentrotus lividus (Lamarck) (Echinodermata:Echinoidea): First insights from the South Tyrrhenian Sea
Iuri, V.; Patti, F.P.; Procaccini, G. (2007). Phylogeography of the sea urchin Paracentrotus lividus (Lamarck) (Echinodermata:Echinoidea): First insights from the South Tyrrhenian Sea, in: Relini, G. et al. (Ed.) Biodiversity in Enclosed Seas and Artificial Marine Habitats: Proceedings of the 39th European Marine Biology Symposium, held in Genoa, Italy, 21-24 July 2004. Developments in Hydrobiology, 193: pp. 77-84
In: Relini, G.; Ryland, J. (Ed.) (2007). Biodiversity in Enclosed Seas and Artificial Marine Habitats: Proceedings of the 39th European Marine Biology Symposium, held in Genoa, Italy, 21-24 July 2004. Developments in Hydrobiology, 193. European Marine Biology Symposia, 39. ISBN 978-1-4020-6155-4. 271 pp., meer
In: Dumont, H.J. (Ed.) Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht. ISSN 0167-8418, meer

Ook gepubliceerd als
  • Iuri, V.; Patti, F.P.; Procaccini, G. (2007). Phylogeography of the sea urchin Paracentrotus lividus (Lamarck) (Echinodermata:Echinoidea): First insights from the South Tyrrhenian Sea. Hydrobiologia 580(1): 77-84. http://dx.doi.org/10.1007/s10750-006-0464-x, meer

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Documenttype: Congresbijdrage

Trefwoorden
    Biogeografie; Fylogenie; Kuststromen; Larven; Verspreiding; Verspreidingsfenomenen; Paracentrotus lividus (Lamarck, 1816) [WoRMS]; MED, Tyrrhenian Sea [Marine Regions]; Marien
Author keywords
    Paracentrotus lividus; mtDNA; ITS2; larval dispersal; marine currents;phylogeography

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Abstract
    The sea urchin Paracentrotus lividus (Lamarck) (Echinodermata: Echinoidea) is an Atlanto-Mediterranean species abundant in the littoral zone, where it occurs in the sublittoral down to 20 m. The aim of our work is to investigate the genetic patterns of P. lividus along the South Tyrrhenian coasts. Five specimens were collected in six localities, from the Gulf of Naples and the Cilento coast. The nuclear rDNA ITS2 spacer and the two mitochondrial genes 16S and COI were used for the analysis. The three markers utilised did not show any structure among populations from the Gulf of Naples. All populations appear to be polyphyletic, with Cilento samples more differentiated from the others. This suggests the existence of phylogeographic structure at larger geographic scale. Absence of genetic structure has been interpreted taking into consideration theoretical dispersal of the planktotrophic larvae, which can survive for 4-8 weeks before settlement, marine current patterns and persistence of the species in the area.

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