Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter January 30, 2015

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

  • Vasileios Gerakaris

    Vasileios Gerakaris is a Marine Ecology Research Associate at the Hellenic Centre for Marine Research (HCMR) and a PhD candidate of Marine Ecology at the Department of Biology of the University of Athens. His PhD research is focused on seagrasses of the eastern Mediterranean Sea with emphasis on the application and development of ecological indices. He has extensive working experience in monitoring phytobenthic communities. He is an expert scientific scuba diver with an extensive experience on various underwater sampling techniques.

    EMAIL logo
    and Konstantinos Tsiamis

    Konstantinos Tsiamis is a freelance researcher collaborating with the Hellenic Centre for Marine Research, focusing on marine biology and oceanography. Over the past 12 years, he has been studying the biodiversity, biology, ecology and taxonomy of seaweeds (green, brown and red macroalgae) and seagrasses with emphasis on alien species and pollution impacts in the Mediterranean Sea. He has been involved in more than 25 research projects on the marine environment, participated in numerous symposia and workshops and obtained scholarships. He is an expert scuba diver with an extensive experience in sampling seaweeds and seagrasses.

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:

About the authors

Vasileios Gerakaris

Vasileios Gerakaris is a Marine Ecology Research Associate at the Hellenic Centre for Marine Research (HCMR) and a PhD candidate of Marine Ecology at the Department of Biology of the University of Athens. His PhD research is focused on seagrasses of the eastern Mediterranean Sea with emphasis on the application and development of ecological indices. He has extensive working experience in monitoring phytobenthic communities. He is an expert scientific scuba diver with an extensive experience on various underwater sampling techniques.

Konstantinos Tsiamis

Konstantinos Tsiamis is a freelance researcher collaborating with the Hellenic Centre for Marine Research, focusing on marine biology and oceanography. Over the past 12 years, he has been studying the biodiversity, biology, ecology and taxonomy of seaweeds (green, brown and red macroalgae) and seagrasses with emphasis on alien species and pollution impacts in the Mediterranean Sea. He has been involved in more than 25 research projects on the marine environment, participated in numerous symposia and workshops and obtained scholarships. He is an expert scuba diver with an extensive experience in sampling seaweeds and seagrasses.

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: 1–7.10.1017/S175526720900058XSearch 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: 5–19.10.3897/biorisk.3.30Search 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: 575–582.10.1515/BOT.2011.061Search 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

Downloaded on 22.2.2024 from https://www.degruyter.com/document/doi/10.1515/bot-2014-0091/html
Scroll to top button