scholarly journals Four new alien species on the coasts of Greece (Eastern Mediterranean)

2010 ◽  
Vol 11 (2) ◽  
pp. 341 ◽  
Author(s):  
N. SIMBOURA ◽  
G. KURT SAHIN ◽  
A. PANAGOULIA ◽  
N. KATSIARAS
Keyword(s):  
Distribution Pattern ◽  
Alien Species ◽  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Marine Fauna ◽  
Polychaete Species ◽  
Ballast Waters ◽  
New Findings ◽  
Disturbed Site ◽  
Of Greece

This study reports four alien polychaete species new to the marine fauna of Greece. These species are -Pseudopolydora paucibranchiata (family Spionidae),Paraprionospio coora (family Spionidae), Marphysa disjuncta (family Eunicidae), and Chaetozone corona(family Cirratulidae). Another species of Chaetozone, though not an alien one, Chaetozone gibber is reported here from Greek waters. All of them have been currently reported from the coasts of Turkey (Aegean or Levantine Seas). Pseudopolydorapaucibranchiata and Marphysa disjuncta, probably introduced to the region through ballast waters, seem to have been well established in the Mediterranean Sea. Chaetozone corona and Paraprionospio coorawere considered to be cryptogenic. Pseudolydora paucibranchiata was found in great densities in a very disturbed site, confirming the opportunistic character of this species. Chaetozone corona and Chaetozonegibber showed a wider distribution pattern, though their abundance increased in disturbed sites.Marphysa disjuncta was found in disturbed as well as in undisturbed sites along the coasts of Greece.Paraprionospio coora shows a distribution pattern indicating an opportunistic character. These new findings increase the number of polychaete species from the Hellenic Seas to 777 species.

scholarly journals An overlooked alien species present on the coasts of Greece (Eastern Mediterranean): the polychaete Polycirrus twisti Potts (Polychaeta: Terebellidae)

2011 ◽  
Vol 12 (1) ◽  
pp. 239 ◽  
Author(s):  
N. SIMBOURA
Keyword(s):  
Alien Species ◽  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Suez Canal ◽  
Polychaete Species ◽  
Marine Area ◽  
Levantine Sea ◽  
The Mediterranean ◽  
Of Greece

The Terebellidae polychaete Polycirrus twisti Potts, 1928 had been confused in several previous records the Eastern Mediterranean with the co-generic species Polycirrus plumosusWollebaeck, 1912, because of incomplete specimens or unclear descriptions; therefore its presence in Greek seas had been overlooked. Specimens of Polycirrus twisti were currently identified from the Korinthiakos Gulf (Greece, Eastern Mediterranean), while older records from the Hellenic marine area, erroneously assigned toPolycirrus plumosus and recorded since 1983 (Rhodos island, Dodekanesse) were emended. Polycirrus twisti is an alien species, most likely introduced to the Mediterranean from the Suez Canal, while it was recently reported from the Southern coasts of Turkey (Levantine Sea). Its identification and report in Greek Seas increases the number of alien polychaete species in this area to 37 and offers a further evidence and link of its introduction and dispersion dynamics from the Suez Canal to the Levantine and Aegean Sea. The presence of the previously reported species Polycirrus plumosus in the Mediterranean Sea is therefore strongly questionable.

scholarly journals Presence of Marphysa disjuncta (Polychaeta: Eunicidae) in the Mediterranean Sea

2009 ◽  
Vol 10 (2) ◽  
pp. 145 ◽  
Author(s):  
G. KURT SAHIN ◽  
M.E. CINAR
Keyword(s):  
Pacific Ocean ◽  
Mediterranean Sea ◽  
Native Species ◽  
Eastern Mediterranean ◽  
Western Pacific ◽  
Western Pacific Ocean ◽  
Polychaete Species ◽  
Ballast Waters ◽  
Levantine Sea ◽  
The Mediterranean

An individual belonging to the eunicid polychaete species Marphysa disjuncta Hartman, 1961 was collected on muddy substratum at 100 m deep in Fethiye Bay (Levantine Sea, eastern Mediterranean). This species is new to the Mediterranean fauna. It closely resembles to Marphysa bellii, a native species, but it lacks compound falcigers and has unidentate subacicular hooks. This species was only reported from the eastern and western Pacific Ocean and could have been introduced to the Mediterranean Sea via ballast waters of vessels.

scholarly journals Satellite Observations of the Seasonal Evolution of Total Precipitable Water Vapour over the Mediterranean Sea

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
J. L. Palau ◽  
F. Rovira ◽  
M. J. Sales
Keyword(s):  
Mediterranean Sea ◽  
Mediterranean Basin ◽  
Eastern Mediterranean ◽  
Precipitable Water ◽  
Satellite Observations ◽  
Annual Variability ◽  
Total Precipitable Water ◽  
New Findings ◽  
Precipitation Regimes ◽  
The Mediterranean

This study shows satellite observations and new findings on the time and spatial distribution of the Total Precipitable Water (TPW) column over the Mediterranean Sea throughout the year. Annual evolution and seasonality of the TPW column are shown and compared to the estimated net evaporation over the Mediterranean Sea. Daily spatiotemporal means are in good agreement with previous short-term field campaigns and also corroborate hypothesis and conclusions reached from previous mesoscale modelling studies: (a) from a meteorological point of view, Mediterranean Basin should be considered as two different subbasins (the Western and the Eastern Mediterranean); (b) accumulation processes may affect the radiative balance at regional scale and the summer precipitation regimes. Furthermore, these satellite observations constitute strong empirical evidences that, (a) from late May to early October, contrary to what happens in the Eastern Mediterranean Basin (EMB), there is a net accumulation of TPW on the Western Mediterranean Basin (WMB) that favours the instability of the atmosphere, (b) there is a seasonal anticorrelation between the seasonal variability of the TPW column over the two Mediterranean subbasins, (c) solar radiation can not be the only driver for the annual variability of the TPW column over the Mediterranean Sea, and (d) both previous features are seasonally dependent and, therefore, their effects on the TPW column are attenuated by annual variability.

scholarly journals First occurrence of the invasive alien species Polydora cornuta Bosc, 1802 (Polychaeta: Spionidae) on the coast of Greece (Elefsis Bay; Aegean Sea)

2008 ◽  
Vol 9 (2) ◽  
pp. 119 ◽  
Author(s):  
N. SIMBOURA ◽  
K. SIGALA ◽  
E. VOUTSINAS ◽  
E. KALKAN
Keyword(s):  
Alien Species ◽  
Invasive Alien Species ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Izmir Bay ◽  
First Finding ◽  
First Occurrence ◽  
The Mediterranean ◽  
Of Greece

The present study reports on the occurrence of two specimens of the alien species Polydora cornutaBosc, 1802, in Elefsis Bay, the Saronikos Gulf (Aegean Sea, eastern Mediterranean). This is the firstrecord of this invasive alien species on the coast of Greece and the second report in the eastern MediterraneanSea after its first finding in Izmir Bay (on the Turkish Aegean coast). This finding enhances its distributionalpattern within the Mediterranean

scholarly journals Non-indigenous macroalgal species in coralligenous habitats of the Marine Protected Area Isole Ciclopi (Sicily, Italy)

2021 ◽  
Vol 11 ◽  
pp. 31-44
Author(s):  
Luca Giuseppe Costanzo ◽  
Giuliana Marletta ◽  
Giuseppina Alongi
Keyword(s):  
Alien Species ◽  
Mediterranean Sea ◽  
Protected Area ◽  
Marine Protected Area ◽  
Eastern Mediterranean ◽  
Present Report ◽  
Eastern Coast ◽  
Remotely Operated Vehicle ◽  
High Coverage ◽  
The Mediterranean

Biological invasions are considered one of the main threats for biodiversity. In the last decades, more than 60 macroalgae have been introduced in the Mediterranean Sea, causing serious problems in coastal areas. Nevertheless, the impacts of alien macroalgae in deep subtidal systems have been poorly studied, especially in the coralligenous habitats of the eastern coast of Sicily (Italy). Therefore, within the framework of the programme “Progetto Operativo di Monitoraggio (P.O.M.)” of the EU Marine Strategy Framework Directive (MSFD), the aim of the present study was to gain knowledge on the alien macroalgae present in coralligenous habitats of the Marine Protected Area (MPA) Isole Ciclopi, along the Ionian coast of Sicily. By Remotely Operated Vehicle (ROV) videos and destructive samples analysed in the laboratory, five alien species were identified: Caulerpa cylindracea, Antithamnion amphigeneum, Asparagopsis armata, Bonnemaisonia hamifera, and Lophocladia lallemandii. Since A. amphigeneum was previously reported only in the western Mediterranean and Adriatic Sea, the present report represents the first record of this species in the eastern Mediterranean. The ROV surveys showed that the alien species do not have a high coverage and do not appear to be invasive in the coralligenous area of the MPA. Since ocean temperatures are predicted to increase as climate change continues and alien species are favoured by warming of the Mediterranean Sea, the risk of biotic homogenisation caused by the spread of alien species is realistic. Therefore, further studies are needed to assess the incidence and invasiveness of alien species in phytobenthic assemblages of coralligenous in the MPA.

scholarly journals Alien species in the Mediterranean Sea by 2010. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part I. Spatial distribution

2010 ◽  
Vol 11 (2) ◽  
pp. 381 ◽  
Author(s):  
A. ZENETOS ◽  
S. GOFAS ◽  
M. VERLAQUE ◽  
M.E. CINAR ◽  
J.E. GARCIA RASO ◽  
...  
Keyword(s):  
Alien Species ◽  
Mediterranean Sea ◽  
Introduced Species ◽  
Cold Water ◽  
Eastern Mediterranean ◽  
Western Mediterranean ◽  
Marine Strategy Framework Directive ◽  
Central Mediterranean ◽  
Total Species Richness ◽  
The Mediterranean

The state-of-art on alien species in the Mediterranean Sea is presented, making distinctions among the four subregions defined in the EU Marine Strategy Framework Directive: (i) the Western Mediterranean Sea (WMED); (ii) the Central Mediterranean Sea (CMED); (iii) the Adriatic Sea (ADRIA); and (iv) the Eastern Mediterranean Sea (EMED). The updated checklist (December 2010) of marine alien species within each subregion, along with their acclimatization status and origin, is provided. A total of 955 alien species is known in the Mediterranean, the vast majority of them having being introduced in the EMED (718), less in the WMED (328) and CMED (267) and least in the Adriatic (171). Of these, 535 species (56%) are established in at least one area.Despite the collective effort of experts who attempted in this work, the number of introduced species remains probably underestimated. Excluding microalgae, for which knowledge is still insufficient, aliens have increased the total species richness of the Mediterranean Sea by 5.9%. This figure should not be directly read as an indication of higher biodiversity, as spreading of so many aliens within the basin is possibly causing biotic homogenization. Thermophilic species, i.e. Indo-Pacific, Indian Ocean, Red Sea, Tropical Atlantic, Tropical Pacific, and circum(sub)tropical, account for 88.4% of the introduced species in the EMED, 72.8% in the CMED, 59.3% in the WMED and 56.1% in the Adriatic. Cold water species, i.e. circumboreal, N Atlantic, and N Pacific, make up a small percentage of the introduced species, ranging between 4.2% and 21.6% and being more numerous in the Adriatic and less so in the EMED.Species that are classified as invasive or potentially invasive are 134 in the whole of the Mediterranean: 108 are present in the EMED, 76 in the CMED, 53 in the Adriatic and 64 in the WMED. The WMED hosts most invasive macrophytes, whereas the EMED has the lion’s share in polychaetes, crustaceans, molluscs and fish.

scholarly journals The Cyprus Issue: Reflection on TRNC

2012 ◽  
pp. 137-146
Author(s):  
Md Ataur Rahman Biswas
Keyword(s):  
Mediterranean Sea ◽  
Ottoman Empire ◽  
Eastern Mediterranean ◽  
Alexander The Great ◽  
Turkish Republic ◽  
Major Powers ◽  
The Arts ◽  
Northern Cyprus ◽  
Strategic Location ◽  
Of Greece

Cyprus is a Eurasian island country located in the Eastern Mediterranean Sea, east of Greece, south of Turkey, west of Syria and Lebanon and north of Egypt. Cyprus is the third largest island in the Mediterranean Sea. The earliest known human activity on the island dates back to around the 10th millennium BC. At a strategic location in the Middle East, Cyprus has been occupied by several major powers, including the empires of the Hittites, Assyrians, Egyptians, Persians, Rashidun and Umayyad Arab caliphates, Lusignans, Venetians, and Ottomans. Settled by Mycenean Greeks in the 2nd millennium BCE, the island also experienced long periods of Greek rule under the Ptolemaic Egyptians and the Byzantines. In 333 BC, Alexander the Great conquered the island from the Persians. The Ottoman Empire conquered the island in 1571 and it remained under Ottoman control for over three centuries. It was placed under British administration in 1878 until it was granted independence in 1960, becoming a member of the Commonwealth the following year. In this paper an attempt is made to discuss the details about the Turkish Republic of Northern Cyprus (TRNC) commonly called Northern Cyprus, which is a self-declared state that comprises the northeastern part of the island of Cyprus recognized only by Turkey and the problems associated with it. DOI: http://dx.doi.org/10.3329/afj.v4i0.12937 The Arts Faculty Journal Vol.4 July 2010-June 2011 pp.137-146

scholarly journals Marine alien species in Greek Seas: Additions and amendments by 2010

2011 ◽  
Vol 12 (1) ◽  
pp. 95 ◽  
Author(s):  
A. ZENETOS ◽  
S. KATSANEVAKIS ◽  
D. POURSANIDIS ◽  
F. CROCETTA ◽  
D. DAMALAS ◽  
...  
Keyword(s):  
Alien Species ◽  
New Records ◽  
Eastern Mediterranean ◽  
Grey Literature ◽  
Marine Species ◽  
Warm Water Species ◽  
Marine Alien Species ◽  
First Time ◽  
Water Species ◽  
Of Greece

An update of the inventory of alien marine species from the coastal and offshore waters of Greece is presented. Records were compiled based on the existing scientific and grey literature, including the HCMR database of Greek alien species (ELNAIS), technical reports, scientific congresses, academic dissertations, websites, and unpublished/personal observations. 47 species were added to the inventory, including 34 invertebrates, one vertebrate (fish), three plants, eight protozoa, and one cyanobacterium. With the new records, the inventory of alien marine species of Greece now includes a total of 237 species (33 macrophytes, 131 invertebrates, 42 vertebrates, two bacteria and 29 protozoans). Among these, the presence of the gastropodHypselodoris infucata, the bivalvesDendrostrea frons and Septifer forskaliand the chondrichthyan Rhizoprionodon acutus is reported here for the first time. Based on molecular analysis, the occurrence of Bulla arabica in Greek waters is confirmed, and the suggestion that previous records of Bulla ampulla in the Mediterranean should be considered as misidentification of B. arabica is further supported. The acclimitization status of earlier records was revised in the light of new data, and thus the fishEnchelycore anatina, Seriola fasciata andTylerius spinosissimus, the red algaeHypnea cornuta and Sarconema scinaioides, the scyphomedusaCassiopea andromeda, the cephalopodSepioteuthis lessoniana, the nudibranchChromodoris annulata and the bivalvesGastrochaena cymbium andPseudochama corbieri were upgraded from casual records to established populations. The increased rate of introductions of warm water species confirms previous findings, which link the rate of introduction in the eastern Mediterranean to climate change.

scholarly journals Sipunculan Fauna in the Fethiye-Gφηek Specially Protected Area (Turkey, Eastern Mediterranean)

2010 ◽  
Vol 11 (1) ◽  
pp. 105 ◽  
Author(s):  
S. ACIK
Keyword(s):  
Alien Species ◽  
Protected Area ◽  
Eastern Mediterranean ◽  
Posidonia Oceanica ◽  
Southern Coast ◽  
Marine Fauna ◽  
Ecological Characteristics ◽  
Number Of Species ◽  
Frequency Index

This study deals with sipunculan species collected from 0 to 31 m depths at 83 stations in the Fethiye-Göçek Specially Protected Area (Turkey). A total of 7 species and 1397 individuals belonging to four families were  encountered. Among the species, Nephasoma (Nephasoma) rimicola is new to the eastern Mediterranean fauna and 5 species are new to the marine fauna of the southern coast of Turkey. Phascolosoma (Phascolosoma) stephensoni has the highest dominance and frequency index values in the area. Aspidosiphon (Aspidosiphon) elegans and Apionsoma (Apionsoma) misakianum are alien species. Of the biotopes examined, Posidonia oceanica was characterized by the highest number of species (6 species). In the present study, brief descriptions of the species, and their distributional and ecological characteristics are given and discussed.

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