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Marine Biodiversity

, Volume 48, Issue 4, pp 2211–2214 | Cite as

The invasive ascidian Ciona robusta recorded from a Red Sea marina

  • Noa ShenkarEmail author
  • Yaniv Shmuel
  • Dorothée Huchon
Short Communication

Abstract

The solitary ascidian Ciona intestinalis is among the most damaging of invasive fouling species in the world. It is mostly known from cold-water or temperate environments, where it is able to form dense aggregations. We present the first record of C. intestinalis type-A, now recognized as C. robusta, from the Eilat marina, Israeli Red Sea coast. Several individuals found fouling the bottom of the floating docks in March 2015 were identified using both mitochondrial sequencing and morphological tools. Periodical surveys revealed some of them with full gonoducts, and small individuals appeared two months later, indicating a reproductive population. The extremely high salinity and temperature at the Eilat marina indicates the wide environmental tolerance of this species. Since the only other report from this region dates to 100 years ago, from a dredging vessel at the entrance to the Suez Canal, and it has not since been recorded from any natural substrates in the region, it should be considered a non-indigenous species in the Red Sea.

Keywords

Marine bioinvasion Fouling Recreational boating Non-indigenous species 

Notes

Acknowledgements

We thank Liran Dray for his help with the DNA extraction. We deeply appreciate Prof. Nishikawa comments and advice. We are grateful to the Interuniversity Institute in Eilat and The Steinhardt Museum of Natural History, National Research Center at Tel-Aviv University for assistance and support. Research funding was provided by The FP7 Marie Curie CIG (321547 to NS), by the German-Israeli Foundation (grant number I-2325-1113.13/2012 to NS), and by The Israel Science Foundation (grant number 161/15 to DH).

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Copyright information

© Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Noa Shenkar
    • 1
    • 2
    Email author
  • Yaniv Shmuel
    • 1
    • 3
  • Dorothée Huchon
    • 1
    • 2
  1. 1.Department of Zoology, George S. Wise Faculty of Life SciencesTel-Aviv UniversityTel-AvivIsrael
  2. 2.The Steinhardt Museum of Natural History, Israel National Center for Biodiversity StudiesTel Aviv UniversityTel-AvivIsrael
  3. 3.The Interuniversity Institute for Marine Sciences of EilatEilatIsrael

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