scholarly journals Ecological patterns of polychaete assemblages associated with the Mediterranean stony coral Cladocora caespitosa (Linnaeus, 1767): a comparison of sites in two biogeographic zones (Adriatic and Aegean Sea)

2021 ◽  
Vol 22 (3) ◽  
pp. 532
Author(s):  
VALENTINA PITACCO ◽  
GIORGOS CHATZIGEORGIOU ◽  
BARBARA MIKAC ◽  
LOVRENC LIPEJ
Keyword(s):  
Relative Proportion ◽  
Aegean Sea ◽  
Feeding Guild ◽  
Stony Coral ◽  
Cladocora Caespitosa ◽  
Ecological Features ◽  
Ecological Patterns ◽  
Species Area ◽  
Relation Model ◽  
The Mediterranean

The Mediterranean stony coral Cladocora caespitosa (Linnaeus, 1767) is a well-known habitat builder, and as such hosts a diversified faunal assemblage. Although polychaetes are one of the most abundant and diverse macrobenthic groups associated with C. caespitosa colonies, our knowledge of their ecological features in this association is still limited. The aim of this paper was to gather and compare the most comprehensive data available on polychaetes associated with C. caespitosa in the Adriatic and the Aegean Seas, and to test for differences between these geographic areas. To this end, differences were tested in terms of: (i) richness and structure of polychaete assemblages; (ii) feeding and functional traits of assemblages; (iii) the main factors influencing those aspects, (iv) the relationship between polychaete assemblages richness and Cladocora colony size, and estimate richness. Differences were observed between the Adriatic and the Aegean Seas, in terms of richness, species composition and relative proportion of the dominant feeding guild (filter feeders most abundant in the Aegean and carnivores in the Adriatic) and motility mode (sessile most abundant in the Aegean and motile in the Adriatic). Conversely, cosmopolitan and Atlanto-Mediterranean species dominated the assemblages in both geographic areas, and the same Species-Area Relation model proved to be effective for richness estimation in both geographic areas.

The Mediterranean stony coral Cladocora caespitosa (Linnaeus, 1767) as habitat provider for molluscs: colony size effect

2017 ◽  
Vol 129 ◽  
pp. 1-11 ◽  
Author(s):  
Valentina Pitacco ◽  
Fabio Crocetta ◽  
Martina Orlando-Bonaca ◽  
Borut Mavrič ◽  
Lovrenc Lipej
Keyword(s):  
Size Effect ◽  
Colony Size ◽  
Stony Coral ◽  
Cladocora Caespitosa ◽  
The Mediterranean

The ecology of the Mediterranean stony coral Cladocora caespitosa (Linnaeus, 1767) in the Gulf of Trieste (northern Adriatic Sea): a 30-year long story

2018 ◽  
Vol 14 (3) ◽  
pp. 307-320 ◽  
Author(s):  
Serena Zunino ◽  
Valentina Pitacco ◽  
Borut Mavrič ◽  
Martina Orlando-Bonaca ◽  
Petar Kružić ◽  
...  
Keyword(s):  
Adriatic Sea ◽  
Northern Adriatic Sea ◽  
Northern Adriatic ◽  
Stony Coral ◽  
Gulf Of Trieste ◽  
Cladocora Caespitosa ◽  
The Mediterranean

scholarly journals New Mediterranean Marine biodiversity records (June 2013)

2013 ◽  
Vol 14 (1) ◽  
pp. 238 ◽  
Author(s):  
I. SIOKOU ◽  
A.S. ATES ◽  
D. AYAS ◽  
J. BEN SOUISSI ◽  
T. CHATTERJEE ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Aegean Sea ◽  
Marine Biodiversity ◽  
Red Data Book ◽  
Gulf Of Tunis ◽  
The North ◽  
Levantine Sea ◽  
Data Book ◽  
The Mediterranean ◽  
Flora Of Cyprus

This paper concerns records of species that have extended their distribution in the Mediterranean Sea. The finding of the rare brackish angiosperm Althenia filiformis in the island of Cyprus is interesting since its insertion in the Red Data Book of the Flora of Cyprus is suggested. The following species enriched the flora or fauna lists of the relevant countries: the red alga Sebdenia dichotoma (Greece), the hydrachnid mite Pontarachna adriatica (Slovenia), and the thalassinid Gebiacantha talismani (Turkey). Several alien species were recorded in new Mediterranean localities. The record of the burrowing goby Trypauchen vagina in the North Levantine Sea (Turkish coast), suggests the start of spreading of this Lessepsian immigrant in the Mediterranean Sea. The findings of the following species indicate the extension of their occurrence in the Mediterranean Sea: the foraminifer Amphistegina lobifera (island of Zakynthos, Greece), the medusa Cassiopea andromeda (Syria), the copepod Centropages furcatus (Aegean Sea), the decapod shrimp Melicertus hathor (island of Kastellorizo, Greece), the crab Menoethius monoceros (Gulf of Tunis), the barnacles Balanus trigonus, Megabalanus tintinnabulum, Megabalanus coccopoma and the bivalves Chama asperella, Cucurbitula cymbium (Saronikos Gulf, Greece).

The October 30, 2020 tsunami in the eastern Aegean Sea: Intensity mapping on Samos island based on the Integrated Tsunami Intensity Scale (ITIS 2012)

2021 ◽  
Author(s):  
Marilia Gogou ◽  
Ioanna Triantafyllou ◽  
Spyridon Mavroulis ◽  
Efthimis Lekkas ◽  
Gerassimos A. Papadopoulos
Keyword(s):  
Environmental Effects ◽  
Aegean Sea ◽  
Maximum Height ◽  
Intensity Scale ◽  
Mobile Objects ◽  
Intensity Mapping ◽  
Eastern Aegean ◽  
Intensity Map ◽  
The Mediterranean ◽  
Tsunami Intensity

<p>On October 30, 2020, an Mw=7.0 earthquake occurred offshore northern Samos Island (Eastern Aegean, Greece). It was felt over a large area extending from Samos to Peloponnese in Greece and from Izmir to Istanbul in Turkey. It triggered many earthquake environmental effects and damage to buildings resulting in 119 fatalities in both countries. Among the triggered phenomena, tsunami waves with maximum height ~3.35 m struck mainly the northern coastal part of Samos Island and then other islands in the Aegean Sea including Chios, Andros, Ikaria Islands, and the western coast of Turkey.</p><p>In order to assess the tsunami intensity in Samos Island, the Integrated Tsunami Intensity Scale (ITIS 2012) was applied. ITIS 2012 is a recently introduced 12-grade scale ranging from I (not felt) to XII (completely devastating) and it is based on the assessment of a large number of objective criteria, grouped in six categories (physical quantities, impact on humans, impact on mobile objects, impacts on infrastructure, environmental effects and impact on structures).</p><p>In this context, the above information and data were used for the October 30, 2020 tsunami in Samos. Observations and measurements during a field survey conducted in Samos shortly after the event by the authors were mainly used for assigning intensities. Moreover, other sources included eyewitness, photos and videos from locals capturing the type and the extent of the tsunami impact as well as reports on the qualitative and quantitative tsunami properties and impact on the natural and built coastal environment were also used. Based on the recorded data and information and the guidelines for applying ITIS 2012, tsunami quantities and impact on humans, mobile objects, coastal infrastructure, the natural environment and buildings were taken into account. All available data were added and edited in a database in Geographic Information Systems (GIS) environment, specially designed for the purpose of the study. Then, the respective tsunami intensities were assigned in the studied sites. Moreover, interpolation methods have been also used in order to obtain zones of different intensity in the inundated coastal areas. The results included an ITIS 2012 intensity map of Samos Island.</p><p>Based on the assigned intensities, the October 30, 2020 tsunami is characterized as a moderate to strong event with considerable impact on all ITIS 2012 categories. The spatial distribution and the amount of the tsunami effects along the coastal area of Samos enabled the compilation of an intensity map with high resolution indicating that this scale works well for modern events with large amounts of effects and related information. Moreover, the individual criteria of the ITIS 2012 successfully complemented each other resulting in a detailed, concise and precise intensity map.</p><p>This is the first time that the ITIS 2012 is applied for a modern tsunami with large amounts of effects in the Mediterranean Region and especially the Aegean Sea. The results could be used for a more effective disaster risk management and risk mitigation strategies for tsunami in the Mediterranean Sea.</p>

Tsunamis

2009 ◽  
Author(s):  
Gerassimos Papadopoulos
Keyword(s):  
Large Scale ◽  
Aegean Sea ◽  
Volcanic Eruptions ◽  
Mediterranean Area ◽  
Wave System ◽  
Submarine Landslides ◽  
Plate Convergence ◽  
Long Wave ◽  
The Mediterranean ◽  
Steep Terrain

According to Imamura (1937: 123), the term tunami or tsunami is a combination of the Japanese word tu (meaning a port) and nami (a long wave), hence long wave in a harbour. He goes on to say that the meaning might also be defined as a seismic sea-wave since most tsunamis are produced by a sudden dip-slip motion along faults during major earthquakes. Other submarine or coastal phenomena, however, such as volcanic eruptions, landslides, and gas escapes, are also known to cause tsunamis. According to Van Dorn (1968), ‘tsunami’ is the Japanese name for the gravity wave system formed in the sea following any large-scale, short-duration disturbance of the free surface. Tsunamis fall under the general classification of long waves. The length of the waves is of the order of several tens or hundreds of kilometres and tsunamis usually consist of a series of waves that approach the coast with periods ranging from 5 to 90 minutes (Murty 1977). Some commonly used terms that describe tsunami wave propagation and inundation are illustrated in Figure 17.2. Because of the active lithospheric plate convergence, the Mediterranean area is geodynamically characterized by significant volcanism and high seismicity as discussed in Chapters 15 and 16 respectively. Furthermore, coastal and submarine landslides are quite frequent and this is partly in response to the steep terrain of much of the basin (Papadopoulos et al. 2007a). Tsunamis are among the most remarkable phenomena associated with earthquakes, volcanic eruptions, and landslides in the Mediterranean basin. Until recently, however, it was widely believed that tsunamis either did not occur in the Mediterranean Sea, or they were so rare that they did not pose a threat to coastal communities. Catastrophic tsunamis are more frequent on Pacific Ocean coasts where both local and transoceanic tsunamis have been documented (Soloviev 1970). In contrast, large tsunami recurrence in the Mediterranean is of the order of several decades and the memory of tsunamis is short-lived. Most people are only aware of the extreme Late Bronge Age tsunami that has been linked to the powerful eruption of Thera volcano in the south Aegean Sea (Marinatos 1939; Chapter 15).

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