Search results for " MEDITERRANEAN SEA"
showing 10 items of 245 documents
Analisi del DNA genomico nucleare di popolamenti a Cystoseira spp. nell’Area Marina Protetta di Capo Gallo-Isola delle Femmine (Sicilia nord-occident…
2008
In this preliminary study we report the first observations on nuclear DNA analysis of Cystoseira populations at Capo Gallo - Isola delle Femmine MPA (north-western Sicily). Some specific bands resulted from the DNA extraction of 2 species even though aspecific bands, probably due to polysaccarides and microendophytes were also highlighted.
Desalination by sea wave in small islands: The case of study of Lampedusa (Italy)
2018
The paper analyses the theme of water energy nexus, investigating a specific industrial process: desalination. In particular, the paper reports a case of study, applied in the small island of Lampedusa, located at south of Sicily (Italy). As the many small islands in the middle of the Mediterranean Sea, Lampedusa presents a small electrical grid, not connected to the mainland. The electrical production is entrusted to old diesel engines, consuming fossil fuel, transported by boat from Sicily. Besides, the renewable energy sources are extremely underdeveloped in this territory, since the environmental constraints make complex the use of technologies, like wind turbines or photovoltaic panels…
Appunti sul design meridiano
2020
Italian design was a wonderful adventure. But, since some time, it seems that we got complacent. The social-economic contest of Country is not anymore what it used to be. Therefore, design must be renewed, if we want to contribute to the project of a better world. This process – because design is a process – cannot be realised outside our history and what we are. We need to leverage on the culture of project, on our better and yet effective traditions, in order to provide fresh vitality and energy. We cannot build on nothing. We must innovate, defile and evolve without prejudice. That is why we need a starting point, a solid point of reference, full of material culture: South
ENVIRONMENTAL QUALITY OF SOFT-BOTTOM IN HAIFA BAY (ISRAEL): AMPHIPOD ASSEMBLAGES
2016
Ecological information concerning amphipods and representation of their spatial distribution through GIS provides an estimate of local environmental quality.
Towards a local mass mortality of the Mediterranean orange coral Astroides calycularis (Pallas, 1766) in the Pelagie Islands Marine Protected Area (I…
2022
In late summer 2020, a widespread mortality event severely affected colonies of the Mediterranean endemic orange coral Astroides calycularis in the Pelagie Islands (Strait of Sicily, southern Mediterranean Sea). The degree of the mortality impact at seven study sites of the archipelago (five within the Pelagie Islands Marine Protected Area) was quantified by estimating the proportion of affected colonies in populations of A. calycularis. Five of the seven surveyed sites revealed a low degree of impact, but Punta Ruperta and Cala Creta (both on the island of Lampedusa) showed a medium impact with values of 32.3% and 30.5% of affected colonies respectively. The 2020 mortality event coincided …
Energetic Sustainability Using Renewable Energies in the Mediterranean Sea
2016
The paper is focused on the analysis of the electrical energy sector in the Maltese islands, focusing on the employment of Renewable Energies in order to increase its energy independence. The main renewable source here proposed is wave energy: thanks to its strategic position, Malta will be able to generate electrical energy through the use of an innovative type of Wave Energy Converter (WEC) based on the prototype of linear generator designed and developed by the University of Palermo. This new technology will be able to cut down the electrical energy production from traditional power plants and, consequently, the greenhouse gas emissions (GHG). Wave energy source and off-shore photovoltai…
Sustainability of the Renewable Energy Extraction Close to the Mediterranean Islands
2017
The aim of this work is to explore the possibility of transitioning a fuel powered island to a renewable powered one. This transition is analyzed for the real MV/LV distribution system of the island of Pantelleria, in the Mediterranean Sea. Particularly, this work is focused on a renewable source nowadays totally unused: wave energy. Thanks to the innovative generator prototype designed by Department of Energy of University of Palermo (Italy), wave energy is able to represent a primary source for the production of electric energy in the Mediterranean islands. The procedures applied in the present article, as well as the main equations used, are the result of previous applications made in di…
Variation in the stable isotope trophic position of the bluefish Pomatomus saltatrix (Linnaeus, 1766) from two Mediterranean sites: insights from a g…
2022
A direct consequence of sea warming is the shift in the distribution range of thermo-tolerant species that have the potential to determine novel inter-specific interactions, ultimately altering food web structures and ecosystem processes. In this study, we investigated the trophic position of the bluefish Pomatomus saltatrix (Linnaeus, 1766), a pelagic predator that has recently expanded its distribution in the Mediterranean basin and for which scant information is available on its functional role in recently-colonised areas. Nitrogen and carbon stable isotopes were determined in muscle tissues of bluefish specimens collected in south-east Italy in the Gulf of Taranto (NW Ionian Sea) and in…
Separated Children’s Migration in the Mediterranean Sea. An Ethnohistorical Perspective
2016
In the imaginary of Italian people, the Island of Lampedusa (Italy) has always been considered a paradise destination for summer holidays. The beauty of this small island at the heart of the Mediterranean Sea, far from big harbors and cities, with its rich biodiversity and unspoilt nature, has made it a national and international tourist attraction. However, in recent years its name become associated with scenes of tragic, desperate journeys made by people of different origins trying to reach Europe from North African coasts. This shift exists not only in Italian people’s perception, but also all over the world, as the news related to Lampedusa and other Italian areas affected by this pheno…
A Biochemical Genetic Study of Isoenzyme Polymorphism within and between Two Populations of Atherina Boyeri Risso
1996
Allozymic variation of 20 loci was investigated in two samples of Atherina boyeri collected in the Mediterranean Sea from the coast of Trappeto and Marsala Lagoon (Sicily, Italy). Five loci were polymorphic (PGM*, EST-1,2*, SOD-2*, PGI-2*) and appeared to be in Hardy-Weinberg equilibrium. A significant Fst mean value (0.02) (G = 23.77, P < 0.05, df = 5) showed that the samples can be considered as two distinct local populations and supports previous morphometric discrimination.