Search results for " SEA"
showing 10 items of 2687 documents
Viatge i descoberta: Superant límits
2013
Tot viatge, fins el més banal, té una dimensió de descoberta, tant del món exterior com del mateix viatger. Alguns viatgers, però, han fet i fan de la recerca mateixa l’objecte del viatge. Els objectius, els mitjans i els comportaments d’aquests viatgers han variat al llarg de la història.
First Evidence of Contourite Drifts in the North-Western Sicilian Active Continental Margin (Southern Tyrrhenian Sea)
2021
We present the results of an integrated geomorphological and seismo-stratigraphic study based on high resolution marine data acquired in the north-western Sicilian continental margin. We document for the first time five contourite drifts (marked as EM1a, EM2b, EM2, EM3a, and EM3b), located in the continental slope at depths between ca. 400 and 1500 m. EM1a,b have been interpreted as elongated mounded drifts. EM1a,b are ca. 3 km long, 1.3 km wide, and have a maximum thickness of 36 m in their center that thins northwards, while EM1b is smaller with a thickness up to 24 m. They are internally characterized by mounded seismic packages dominated by continuous and parallel reflectors. EM2 is loc…
Effets du bruit marin sur le changement des poissons sparidés juvéniles entre les espèces et les stades de développement
2023
International audience; Marine noise is an emerging pollutant inducing a variety of negative impacts on many animal taxa, including fish. Fish population persistence and dynamics rely on the supply of early life stages, which are often very sensitive to disturbance. Impacts of marine noise pollution (MNP) on juvenile fish have rarely been investigated in temperate regions. This is particularly true for the Mediterranean Sea, which is considered as an MNP hotspot due to intensive maritime traffic. In this study, we investigate the relationship between MNP related to boat traffic and (i) assemblage structure and (ii) the density of juvenile fishes (post-settlers at different stages) belonging…
Genetic variability of the blue and red shrimp Aristeus antennatus in the Western Mediterranean Sea inferred by DNA microsatellite loci
2012
Genetic variation at eight microsatellite loci was studied in nine populations of the blue and red shrimp Aristeus antennatus to investigate whether distinct stocks are present in the Western Mediterranean Sea. A high level of gene flow and no evidence of genetic partitioning were discovered. No significant variation was found (FST = 0.00673, P-value = 0.067) even when shrimps from exploited and those from deep-water unexploited grounds were compared. No evidence of reduction or expansion of population size in the recent past was found, as indicated by the bottleneck and interlocus g-tests. Our results are consistent with previous studies using mitochondrial gene methods and allozymes, indi…
Obraz v "Zapiskah ohotnika" Ivana Turgeneva i "Zerkale morej" Džozefa Konrada
2015
The Mechanical Impact of Water Affected the Soil Physical Quality of a Loam Soil under Minimum Tillage and No-Tillage: An Assessment Using Beerkan Mu…
2021
The multi-height (low, L = 3 cm
Lo sprawl è un delitto
2014
Il contributo si sofferma sul rapporto tra consumo di suolo e dispersione insediativa declinandone le specificità e prefigurando alcune "soluzioni" al soil sealing.
Consumo di suolo. Un approccio multidisciplinare ad un tema trasversale
2014
Il testo affronta il tema "consumo di suolo" affrontando la sfida dei un confronto 'trasversale', affinchè si provi a individuare soluzioni comuni. Per agevolare il confronto interdisciplinare, il testo è suddiviso in due sezioni: teorie del consumo e territori del consumo. La sezione “territori del consumo” analizza casi-studio concreti con contributi di Teresa Cannarozzo, Giuseppe Giunta e Alessandra Giorgianni, Giuseppe Abbate, Filippo Schilleci, Annalisa Giampino, Giuseppe Guerrera, Tommaso La Mantia. La sezione "teorie del consumo" racchiude contributi a carattere teorico-metodologico. Vi si trovano testi di Giuseppina Carrà, Iuri Peri e Carlo Prato, Claudio Bellia, Giuseppe De Luca, N…
Indagine spazio-temporale sul consumo dei suoli in una fascia di costa della Sicilia.
2011
Submarine Slope Failures Along the Northern Sicilian Continental Margin (Southern Tyrrhenian Sea) and Possible Implications for Geo-Hazard
2013
Mass wasting and downslope movements are common processes that have contributed to shape the northern Sicilian continental margin (southern Tyrrhenian Sea) since the Late Quaternary. Nevertheless, processes controlling their evolution are still partially unknown and a variety of geologic factors can be responsible for their formation. In this work we present an overview of the main mass wasting features (submarine canyons, landslides, debris flows) observed and mapped in different sectors of the northern Sicilian margin. The margin is characterized by a narrow, steep continental shelf (1-2°) and a very irregular and steep (6-8°) upper slope. The main aims of this work are: (1) to outline th…