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 Sponge species from ports of the inner and middle parts of İzmir Bay (Aegean Sea, Eastern Mediterranean)

2020 ◽  
Vol 37 (2) ◽  
pp. 149-155 ◽  
Author(s):  
Alper EVCEN ◽  
Melih Ertan ÇINAR
Keyword(s):  
Alien Species ◽  
Invasive Alien Species ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Sponge Species ◽  
Izmir Bay ◽  
First Time ◽  
Hard Substrata

Four sponge species (Sycon raphanus, Sycon ciliatum, Paraleucilla magna and Dysidea fragilis) were found on artificial hard substrata of several ports in the inner and middle parts of Izmir Bay. The invasive alien species Paraleucilla magna, is being recorded for the first time from the Aegean coast of Turkey. It was very abundant almost at all studied ports, covering up to 35% of the sampled surfaces. The morphological and distributional features of the four species are described.

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 First occurrence of the Indo-Pacific polychaete species Glycinde bonhourei Gravier, 1904 in the Hellenic seas (Northern Evvoikos Gulf)

2008 ◽  
Vol 9 (1) ◽  
pp. 173 ◽  
Author(s):  
N. SIMBOURA
Keyword(s):  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Polychaete Species ◽  
First Finding ◽  
New Information ◽  
Levantine Basin ◽  
First Occurrence ◽  
The Mediterranean ◽  
Pacific Species

A specimen of Glycinde bonhourei Gravier, 1904, an Indo-Pacific species, was found at a station near the metalliferous waste disposal in the Northern Evvoikos Gulf (Aegean Sea, eastern Mediterranean). This is the second report of this species in the Mediterranean Sea after its first finding in the Levantine basin (Israel and Egypt). This paper provides new information on its distributional range in the Mediterranean Sea.

Spatio-temporal distributions of zoobenthos in soft substratum of Izmir Bay (Aegean Sea, eastern Mediterranean), with special emphasis on alien species and ecological quality status

2012 ◽  
Vol 92 (7) ◽  
pp. 1457-1477 ◽  
Author(s):  
Melıh Ertan Çinar ◽  
Tuncer Katagan ◽  
Bılal Öztürk ◽  
Kerem Bakir ◽  
Ertan Dagli ◽  
...  
Keyword(s):  
Community Structure ◽  
Alien Species ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Depth Range ◽  
Biotic Indices ◽  
Izmir Bay ◽  
Number Of Species ◽  
Pollution Indicator ◽  
Quality Status

The soft-bottom zoobenthic community structure of Izmir Bay was examined seasonally at eight stations (depth-range: 19–67 m) in 2009. A total of 427 species were found. Polychaeta had the highest number of species (50% of total species) and individuals (75%), whereas Echinodermata possessed the highest biomass (47%). The number of species varied from 3 to 79 (0.1 m−2), the density from 60 to 5360 ind.m−2, and the biomass from 1 to 530 g.m−2. The most numerically dominant species were the polychaetesAricidea claudiae, Streblospio gynobranchiata, Levinsenia demiriandSternaspis scutata. The distribution of zoobenthos was strongly related to spatial differences in total organic carbon, sediment texture and depth among different regions of the bay rather than temporal differences among seasons. However, significant seasonal variability in community structure (mainly differences in the relative abundance of species) was present. The inner region of the bay can be classified as ‘poor’ or ‘bad’ based on the results of biotic indices (H′, AMBI, m-AMBI and BENTIX). Among biotic indices, only H′ and m-AMBI appeared to be capable of explaining the bay's benthic quality status. Thirteen alien species were also found.Streblospio gynobranchiata, Prionospio pulchra, Pseudopolydora paucibranchiataandPolydora cornutaformed dense populations in the inner most polluted part of the bay and are considered to be new pollution indicator species in the eastern Mediterranean Sea.

Reproductive biology of the mediterranean green crab Carcinus aestuarii Nardo, 1847 (Crustacea, Brachyura, Portunidae) in Homa Lagoon, Aegean Sea, Turkey

2012 ◽  
Vol 41 (4) ◽  
Author(s):  
Murat Özbek ◽  
Cengiz Koçak ◽  
Deniz Acarlı
Keyword(s):  
Eastern Mediterranean ◽  
Carapace Width ◽  
Aegean Sea ◽  
Green Crab ◽  
Shallow Waters ◽  
Regression Analyses ◽  
Izmir Bay ◽  
Wet Weight ◽  
The Mediterranean ◽  
Fyke Nets

AbstractThe Mediterranean green crab Carcinus aestuarii Nardo, 1847 (Crustacea, Brachyura, Portunidae) is a common inhabitant of the shallow waters of Homa Lagoon in Izmir Bay, Turkey, in the eastern Mediterranean. Monthly samples were collected in Homa Lagoon from June 2006 to May 2007 using trammel nets, fyke nets, beach seines and fence traps. In total, 608 males and 559 females of C. aestuarii were collected. The highest sex ratio (81–86% females) was recorded between October and December, and in August (58% females). Ovigerous females were obtained only from November to February with the highest ratio of ovigerous females (55%) observed in January 2007. The maturation curve presenting the carapace width showed that 50% of female crabs with the carapace width of 26.84 ±1.58 mm (r= 0.72) were physiologically mature. Regression analyses indicated that the number of eggs was positively correlated with carapace width and wet weight (P < 0.05, in both cases).

Alien species of spionid polychaetes (Streblospio gynobranchiata and Polydora cornuta) in Izmir Bay, eastern Mediterranean

2005 ◽  
Vol 85 (4) ◽  
pp. 821-827 ◽  
Author(s):  
Melih Ertan Çinar ◽  
Zeki Ergen ◽  
Ertan Dagli ◽  
Mary E. Petersen
Keyword(s):  
Alien Species ◽  
Exotic Species ◽  
Ballast Water ◽  
Eastern Mediterranean ◽  
Maximum Density ◽  
Izmir Bay ◽  
The Mediterranean ◽  
Density And Biomass

The present study reports the occurrence of two exotic species of polychaetes in Izmir Bay, the eastern Mediterranean: Streblospio gynobranchiata, newly reported for the Mediterranean, and Polydora cornuta. Their establishment in the area is most probably transport by ballast water since these two species greatly dominated polluted muddy bottoms near and in Alsancak Harbour. The maximum density and biomass of S. gynobranchiata in the area were 34,270 ind m−2 and 9·4 g wwt m−2, and those of P. cornuta were 3170 ind m−2 and 2·1 g wwt m−2, respectively. These two species accounted for more than 60% of total faunal populations in the majority of samples collected in winter. Both species are capable of reproducing in the area both in summer and winter. The morphological, ecological and distributional characteristics of these species as well as their impacts on the prevailing ecosystem are analysed and discussed.

scholarly journals The Case of Lionfish (Pterois miles) in the Mediterranean Sea Demonstrates Limitations in EU Legislation to Address Marine Biological Invasions

2021 ◽  
Vol 9 (3) ◽  
pp. 325
Author(s):  
Periklis Kleitou ◽  
Jason M. Hall-Spencer ◽  
Ioannis Savva ◽  
Demetris Kletou ◽  
Margarita Hadjistylli ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Alien Species ◽  
Invasive Alien Species ◽  
Eastern Mediterranean ◽  
Assessment Process ◽  
European Regulation ◽  
Pterois Miles ◽  
The Mediterranean ◽  
Legal Controls ◽  
The Eu

The European Regulation (EU) 1143/2014 on Invasive Alien Species entered into force in 2015, with the aim to fulfill regional and international biodiversity goals in a concerted manner. To date, the Regulation listed 66 Invasive Alien Species (IAS) that are subject to legal controls. Only one of these is marine. A recent lionfish (Pterois miles) invasion has been closely monitored in the Mediterranean and a detailed risk assessment was made about the profound impacts that this invasive fish is likely to have on the fisheries and biodiversity of the region. In 2016–21, lionfish rapidly became dominant predators along Eastern Mediterranean coasts, yet the process for their inclusion on the EU IAS list has been lengthy and is ongoing. There is an urgent need to learn from this experience. Here, we recommend improvements to the Regulation 1143/2014 and the risk assessment process to protect marine ecosystems and secure the jobs of people that rely on coastal resources.

scholarly journals On the occurrence of Bursatella leachii de Blainville, 1817 in Izmir Bay, Turkey

2007 ◽  
Vol 8 (2) ◽  
pp. 87 ◽  
Author(s):  
M. KAZAK ◽  
L. CAVAS
Keyword(s):  
Alien Species ◽  
Mediterranean Basin ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Izmir Bay ◽  
Eastern Mediterranean Basin ◽  
Bursatella Leachii

One of the well- established alien species in the eastern Mediterranean basin is Bursatella leachii, also known as a lessepsian immigrant. The present paper provides a contribution to Bursatella leachii’sdistribution in the Bay of Izmir, Turkish Aegean Sea.

scholarly journals FIRST OCCURRENCE OF THE INVASIVE ALIEN SPECIES STREBLOSPIO GYNOBRANCHIATA (RICE & LEVIN, 1998) AND POLYDORA CORNUTA BOSC, 1802 (POLYCHAETA: SPIONIDAE) ON THE COAST OF ABKHAZIA (SUKHUM BAY, BLACK SEA)

2018 ◽  
Vol 18 ◽  
pp. 129-132
Author(s):  
Zhanna P. Selifonova ◽  
Levard M. Bartsits
Keyword(s):  
Alien Species ◽  
Black Sea ◽  
Invasive Alien Species ◽  
The Black Sea ◽  
First Occurrence

This study reports the first occurrence of an alien spionid polychaetes Streblospio gynobranchiata (Rice & Levin, 1998) and Polydora cornuta Bosc, 1802, in the Abkhazian coast and new locality for distribution of the species in the Black Sea.

scholarly journals Aliens in the Aegean – a sea under siege (ALAS)

2020 ◽  
Vol 6 ◽  
Author(s):  
Stelios Katsanevakis ◽  
Konstantinos Tsirintanis ◽  
Maria Sini ◽  
Vasilis Gerovasileiou ◽  
Nikoletta Koukourouvli
Keyword(s):  
Remote Sensing ◽  
Invasive Species ◽  
High Resolution ◽  
Alien Species ◽  
Invasive Alien Species ◽  
Aegean Sea ◽  
Ecological Impacts ◽  
Cumulative Impacts ◽  
Cumulative Impact ◽  
Marine Habitats

ALAS aims to fill knowledge gaps on the impacts of marine alien species in the Aegean Sea, and support marine managers and policy makers in prioritizing mitigation actions. The project will focus on under-studied alien-native interactions, priority and vulnerable habitats (such as shallow forests of canopy algae and underwater caves), and apply a multitude of approaches. It will apply a standardized, quantitative method for mapping Cumulative IMpacts of invasive Alien species on marine ecosystems (CIMPAL), according to which cumulative impact scores are estimated on the basis of the distributions of invasive species and ecosystems, and both the reported magnitude of ecological impacts and the strength of such evidence. Towards that direction, ALAS will improve our knowledge base and compile the needed information to estimate CIMPAL by (1) conducting a series of field experiments and surveys to investigate the impacts of selected invasive alien species on marine habitats, (2) producing high-resolution habitat maps in the coastal zone, refining the results of previous research efforts through fieldwork, remote sensing and satellite imaging, (3) producing species distribution models for all invasive species, based on extensive underwater surveys for the collection of new data and integrating all existing information. ALAS will incorporate skills and analyses in novel ways and provide high-resolution results at a large scale; couple classic and novel tools and follow a trans-disciplinary approach, combining knowledge from the fields of invasion biology, conservation biology, biogeography, fisheries science, marine ecology, remote sensing, statistical modelling; conduct for the first time in the Aegean Sea a comprehensive, high-resolution analysis of cumulative impacts of invasive alien species; and report results in formats appropriate for decision-makers and society, thus transferring research-based knowledge to inform and influence policy decisions.

Sign in / Sign up

Export Citation Format

Share Document