scholarly journals Thorium and protactinium isotopes as tracers of marine particle fluxes and deep water circulation in the Mediterranean Sea

2018 ◽  
Vol 199 ◽  
pp. 12-23 ◽  
Author(s):  
Sandra Gdaniec ◽  
Matthieu Roy-Barman ◽  
Lorna Foliot ◽  
Francois Thil ◽  
Arnaud Dapoigny ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Deep Water ◽  
Water Circulation ◽  
The Mediterranean ◽  
Particle Fluxes

scholarly journals A comparison between water circulation and terrestrially-driven dissolved silica fluxes to the Mediterranean Sea traced using radium isotopes

2018 ◽  
Vol 238 ◽  
pp. 496-515 ◽  
Author(s):  
Joseph Tamborski ◽  
Simon Bejannin ◽  
Jordi Garcia-Orellana ◽  
Marc Souhaut ◽  
Céline Charbonnier ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Water Circulation ◽  
Radium Isotopes ◽  
Dissolved Silica ◽  
The Mediterranean

Verruca stroemia and Verruca spengleri (Crustacea: Cirripedia): distribution in the north-eastern Atlantic and the Mediterranean Sea

2003 ◽  
Vol 83 (1) ◽  
pp. 89-93 ◽  
Author(s):  
Paulo S. Young ◽  
Helmut Zibrowius ◽  
Ghazi Bitar
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Geographic Distribution ◽  
Deep Water ◽  
Southern Spain ◽  
The Black Sea ◽  
The North ◽  
North Eastern ◽  
The Mediterranean ◽  
Gorringe Bank

The geographic distribution of Verruca stroemia and V. spengleri are reviewed. Verruca stroemia ranges from the White, Barents, Norwegian, and North Seas south to Portugal to the Algarve and to Gorringe Bank. All of the records of this species from the Mediterranean Sea are considered to be V. spengleri. Verruca spengleri occurs in the Azores and Madeira archipelagos, in southern Spain (Cádiz), throughout the Mediterranean Sea from Gibraltar to Lebanon, and in the Black Sea. But a distinct deep-water Verruca species seems to occur in the deep Mediterranean.

THE CONVERTED HYDROACOUSTIC ARRAY "MG-10M" – A BASIC MODULE FOR A DEEP WATER ν-TELESCOPE

2006 ◽  
Vol 21 (supp01) ◽  
pp. 197-201
Author(s):  
Y. KARLIK ◽  
V. SVET
Keyword(s):  
High Temperature ◽  
Mediterranean Sea ◽  
Deep Water ◽  
Underwater Sound ◽  
Good Tool ◽  
Sound Channel ◽  
Technical Parameters ◽  
Basic Module ◽  
Underwater Sound Channel ◽  
The Mediterranean

The possibility of converted hydroacoustic arrays to create a module of deep water ν-Telescope is discussed. The array MC-10M is good tool to start the first real ocean experiments to investigate the problem of detecting neutrinos with energy 1018 eV. Technical parameters and systems which are necessary to create the module are presented. The Mediterranean Sea is an appropriate area for the first experiments due to existing of a deep underwater sound channel and stable high temperature. Some estimation of possible detecting volumes is presented. This project is continuation of works of authors in this direction, started in 1997.

FIRST ACTIVITIES IN ACOUSTIC DETECTION OF PARTICLES IN UPV

2006 ◽  
Vol 21 (supp01) ◽  
pp. 137-141 ◽  
Author(s):  
M. ARDID ◽  
J. RAMIS ◽  
V. ESPINOSA ◽  
J. A. MARTÍNEZ-MORA ◽  
F. CAMARENA ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Deep Water ◽  
Research Group ◽  
High Energy ◽  
Sea Surface ◽  
Acoustic Detection ◽  
High Energy Neutrino ◽  
Energy Neutrino ◽  
The Mediterranean ◽  
Surface Noise

The first activities related to acoustic detection of particles by DISAO research group in the Univesitat Politècnica de València are described. We are applying some techniques from physic, engineering and oceanographic acoustics to face the high energy neutrino underwater acoustic detection challenge. The work is focused mainly in two topics: design, characterization and calibration of hydrophones, and simulation of the propagation of the signal in the sea. We present also some examples for these two topics: piezoelectric modelling and transducer simulation, calibration of hydrophones using MLS signals, and evaluation of the contribution of the sea surface noise to the deep water noise in the Mediterranean Sea by means of simulations of propagation of sound.

A revised definition of the genus Epileucon Jones (Crustacea, Cumacea) with descriptions of species from the deep Atlantic

1981 ◽  
Vol 291 (1052) ◽  
pp. 353-409 ◽  
Keyword(s):  
New Species ◽  
New Zealand ◽  
Continental Shelf ◽  
Mediterranean Sea ◽  
Geographical Distribution ◽  
Deep Water ◽  
Mediterranean Species ◽  
Males And Females ◽  
The Mediterranean ◽  
Definition Of

The genus Epileucon Jones, 1956 is redefined on the basis of carapace, pereon and appendage characters. The following species are transferred to Epileucon from the genus Leucon Kröyer, 1846: E. spiniventris (Hansen, 1920), E. longirostris (G. O. Sars, 1871), E. tenuirostris (G. O. Sars, 1887), E. latispina (Jones, 1963) and E. bengalensis (Lomakina, 1967). A lectotype is selected for E. spiniventris . Known Atlantic and Mediterranean species are redescribed, and five new species, E. ensis, E. pusillus, E. craterus, E. socius and E. acclivis , are described. Keys to males and females of the Atlantic and Mediterranean species are provided. The geographical distribution of the group is discussed. The genus is known in deep water (> 200 m) in the Atlantic, Pacific and Indian oceans and in the Mediterranean Sea, and also on the continental shelf (at around 100 m depth) off New Zealand.

scholarly journals The deep-water squid Octopoteuthis sicula Rüppell, 1844 (Cephalopoda: Octopoteuthidae) as the single species of the genus occurring in the Mediterranean Sea

2016 ◽  
Vol 163 (9) ◽  
Author(s):  
Patrizia Jereb ◽  
Rita Cannas ◽  
Porzia Maiorano ◽  
Giambattista Bello ◽  
Fulvio Garibaldi ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Deep Water ◽  
Single Species ◽  
The Mediterranean

First record of Amphiura securigera (Echinodermata: Ophiuroidea) in the Tyrrhenian (Mediterranean) Sea

2000 ◽  
Vol 80 (1) ◽  
pp. 175-176
Author(s):  
P. Rinelli
Keyword(s):  
Mediterranean Sea ◽  
First Record ◽  
Water Circulation ◽  
Brittle Star ◽  
Tyrrhenian Sea ◽  
Bathymetric Range ◽  
First Finding ◽  
The Mediterranean

The first finding of the brittle star Amphiura securigera (Echinodermata: Ophiuroidea) in the Tyrrhenian Sea is reported. According to literature data, biotopic and edaphic features of the bottom indicate that this species preferentially lives in detritic mud-free biotopes characterized by good water circulation. Present data show that in the Mediterranean Sea A. securigera extends its bathymetric range as far as the circalittoral and upper bathyal floors.

scholarly journals Changes in ventilation of the Mediterranean Sea during the past 25 year

Ocean Science ◽  
2014 ◽  
Vol 10 (1) ◽  
pp. 1-16 ◽  
Author(s):  
A. Schneider ◽  
T. Tanhua ◽  
W. Roether ◽  
R. Steinfeldt
Keyword(s):  
Mediterranean Sea ◽  
Deep Water ◽  
Adriatic Sea ◽  
Western Mediterranean ◽  
Tyrrhenian Sea ◽  
Deep Water Formation ◽  
Technical Problems ◽  
Water Formation ◽  
The Mediterranean ◽  
Transient Tracer

Abstract. Significant changes in the overturning circulation of the Mediterranean Sea has been observed during the last few decades, the most prominent phenomena being the Eastern Mediterranean Transient (EMT) in the early 1990s and the Western Mediterranean Transition (WMT) during the mid-2000s. During both of these events unusually large amounts of deep water were formed, and in the case of the EMT, the deep water formation area shifted from the Adriatic to the Aegean Sea. Here we synthesize a unique collection of transient tracer (CFC-12, SF6 and tritium) data from nine cruises conducted between 1987 and 2011 and use these data to determine temporal variability of Mediterranean ventilation. We also discuss biases and technical problems with transient tracer-based ages arising from their different input histories over time; particularly in the case of time-dependent ventilation. We observe a period of low ventilation in the deep eastern (Levantine) basin after it was ventilated by the EMT so that the age of the deep water is increasing with time. In the Ionian Sea, on the other hand, we see evidence of increased ventilation after year 2001, indicating the restarted deep water formation in the Adriatic Sea. This is also reflected in the increasing age of the Cretan Sea deep water and decreasing age of Adriatic Sea deep water since the end of the 1980s. In the western Mediterranean deep basin we see the massive input of recently ventilated waters during the WMT. This signal is not yet apparent in the Tyrrhenian Sea, where the ventilation seems to be fairly constant since the EMT. Also the western Alboran Sea does not show any temporal trends in ventilation.

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