Accessible Requires Authentication Published by De Gruyter January 30, 2015

Sexual reproduction of the Lessepsian seagrass Halophila stipulacea in the Mediterranean Sea

Vasileios Gerakaris and Konstantinos Tsiamis
From the journal Botanica Marina

Abstract

Sexual reproduction has hardly ever been reported in the Lessepsian seagrass Halophila stipulacea in the Mediterranean Sea. In the present study, fertile plants bearing fruits are reported for the first time from the North Aegean Sea, and for the second time from the whole Mediterranean Basin, confirming a successful and complete sexual reproduction of the species in the Mediterranean environment. In August 2012 on Chios Island, a large population of this plant in the northernmost limit of its Aegean Sea distribution was found and it was concluded that the fertility of the plants could be a response to the warming of the Mediterranean Sea, and may suggest that a further expansion of the species is occurring.


Corresponding author: Vasileios Gerakaris, Hellenic Centre for Marine Research (HCMR), Institute of Oceanography, Anavissos 19013, Attica, Greece, e-mail:

References

Fritsch, C. 1895. Uber die Auffindung einer marinen Hydrocharidee im Mittelmeer. Verh. Zool. Bot. Ges. Wien.45: 104–106. Search in Google Scholar

Gambi, M.C., F. Barbieri and C.N. Bianchi. 2009. New record of the alien seagrass Halophila stipulacea (Hydrocharitaceae) in the western Mediterranean: a further clue to changing Mediterranean Sea biogeography. Mar. Biodivers. Rec. 2: 1–7. Search in Google Scholar

Lipkin, Y. 1975a. Halophila stipulacea, a review of a successful immigration. Aquat. Bot.1: 20–215. Search in Google Scholar

Lipkin, Y. 1975b. Halophila stipulacea in Cyprus and Rhodes, 1967–1970. Aquat. Bot. 1: 309–320. Search in Google Scholar

Politis, J. 1926. De la présence de l’ Halophila stipulacea (Forssk.) Aschers. dans les mers Grecques. Prakt. Akad. Athenon1: 111–113. Search in Google Scholar

Por, F.D. 2009. Tethys returns to the Mediterranean: success and limits of tropical re-colonization. BioRisk 3: 5–19. Search in Google Scholar

Sghaier, Y.R., R. Zakhama-Sraieb, I. Benamer and F. Charfi-Cheikhrouha. 2011. Occurrence of the seagrass Halophila stipulacea (Hydocharitaceae) in the southern Mediterranean Sea. Bot. Mar. 54: 575–582. Search in Google Scholar

Tsiamis, K., B. Montesanto, P. Panayotidis, C. Katsaros and M. Verlaque. 2010. Updated records and range expansion of alien marine macrophytes in Greece (2009). Medit. Mar. Sci. 11: 61–79. Search in Google Scholar

Published Online: 2015-1-30
Published in Print: 2015-2-1

©2015 by De Gruyter