Updated records and range expansion of alien marine macrophytes in Greece (2009)

Abstract

In the present study the list of alien marine macrophytes already recorded on Greek coasts has been revised in the light of recent studies and new observations. In comparison to 2008, the total number consists of 32 taxa, and the classification as established, casual and debatable species has been modified, with a total of 14, 5 and 13 species respectively. An interesting increase in established species from 9 taxa in 2008 to 14 taxa in 2009 is noted. With 23 taxa listed, Rhodobionta is the best represented group, followed by Chlorobionta (4 taxa) and Chromobionta (4 taxa), while seagrasses (Streptobionta) are represented by only one species. Several new records, one new entry and two putative additions are considered here, while two other taxa previously assumed introduced are excluded from the list of aliens.

Seaweeds of the Greek coasts. II. Ulvophyceae

“…The 96 confirmed taxa reported in the present study reflect a further increase of our knowledge, and it should be attributed to the several new studies carried out during the last years (e.g. Sartoni & De Biasi, 2009;Catra & Giardina, 2009;Tsiamis et al, 2010aTsiamis et al, , b, 2013b.…”

New Mediterranean Biodiversity Records (December 2012)

“…commersonii and P. gibbesi have been reported recently from Ammopi, a site off the east coast of Karpathos (Nicolaidou et al, 2012). C. racemosa has been reported previously at 6 sites of Karpathos Island (Catra and Giardina, 2009;Tsiamis et al, 2010). The remaining six species are reported herein for the first time from Karpathos and Chalki islands.…”

Macroalgal community response to re-oligotrophication in Saronikos Gulf

“…Moreover, the gulf is subject to an unprecedented introduction of alien species, largely due to the area's intense maritime traffic and the Lessepsian (i.e. through the Suez Canal) immigration phenomenon, which has been strongly affecting the wider Eastern Mediterranean basin during the last 2 decades (Tsiamis et al 2010). However, urban sewage discharge, with an estimated average outflow of 750 000 t d -1 (Xenarios 2009), is thought to impose the most significant stress on the marine environment of the gulf, causing a clear pollution gradient along its coasts (Simboura et al 2005).…”