نتایج جستجو برای: cyclogensis centers of mediterranean sea

تعداد نتایج: 21194568  

2014
Rachele Gallisai Francesc Peters Gianluca Volpe Sara Basart José Maria Baldasano Tomoya Iwata

The surface waters of the Mediterranean Sea are extremely poor in the nutrients necessary for plankton growth. At the same time, the Mediterranean Sea borders with the largest and most active desert areas in the world and the atmosphere over the basin is subject to frequent injections of mineral dust particles. We describe statistical correlations between dust deposition over the Mediterranean ...

2015
Lara S. Garcia-Corral Juan Martinez-Ayala Carlos M. Duarte Susana Agusti

The Mediterranean Sea is a vulnerable region for climate change, warming at higher rates compare to the global ocean. Warming leads to increased stratification of the water column and enhanced the oligotrophic nature of the Mediterranean Sea. The oligotrophic waters are already highly transparent, however, exposure of Mediterranean plankton to ultraviolet radiation (UV-B and UV-A) may increase ...

2017
María José Meléndez José Carlos Báez José Miguel Serna-Quintero Juan Antonio Camiñas Ignacio de Loyola Fernández Raimundo Real David Macías

Chondrichthyes, which include Elasmobranchii (sharks and batoids) and Holocephali (chimaeras), are a relatively small group in the Mediterranean Sea (89 species) playing a key role in the ecosystems where they are found. At present, many species of this group are threatened as a result of anthropogenic effects, including fishing activity. Knowledge of the spatial distribution of these species i...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2008
Francesco Ferretti Ransom A Myers Fabrizio Serena Heike K Lotze

Evidence for severe declines in large predatory fishes is increasing around the world. Because of its long history of intense fishing, the Mediterranean Sea offers a unique perspective on fish population declines over historical timescales. We used a diverse set of records dating back to the early 19th and mid 20th century to reconstruct long-term population trends of large predatory sharks in ...

Journal: :Diseases of aquatic organisms 2017
M Santoro F Di Nocera D Iaccarino S P Lawton A Cerrone B Degli Uberti M D'Amore A Affuso S Hochscheid F Maffucci G Galiero

Turtle blood flukes belonging to the family Spirorchiidae (Digenea) represent a major threat for sea turtle health and are considered the most important parasitic cause of turtle stranding and mortality worldwide. Despite the large diversity of spirorchiid species found globally, there are only 2 records for free-ranging Mediterranean sea turtles that date back to the late 1800s involving just ...

Journal: :Marine pollution bulletin 2017
Antonella Arcangeli Ilaria Campana Dario Angeletti Fabrizio Atzori Marta Azzolin Lara Carosso Valentina Di Miccoli Antonio Giacoletti Martina Gregorietti Cristina Luperini Miriam Paraboschi Giuliana Pellegrino Martina Ramazio Gianluca Sarà Roberto Crosti

Marine litter is a major source of pollution in the Mediterranean basin, but despite legislative requirements, scant information is available for the ongoing assessment of this threat. Using higher size classes as proxy for litter distribution, this study gave a synoptic estimation of the amount, composition, and distribution of floating macro-litter in the Mediterranean. The average amount of ...

Journal: :پژوهش های جغرافیای طبیعی 0
سمیه رفعتی استادیار اقلیم شناسی، دانشگاه سیدجمال‎الدین اسدآبادی زهرا حجازی زاده استاد اقلیم شناسی، دانشگاه خوارزمی مصطفی کریمی استادیار اقلیم شناسی، دانشگاه تهران

i introduction convective systems are atmospheric events that are associated with hazardous consequences, such as strong wind drafts, lightning, heavy rainfall, hail, or even tornado. they are manifested in the atmosphere within a broad range of spatial and temporal scales. a convection cell is composed of two distinct regions: the actual convective part which consists of the coldest intense ve...

2014
A. M. Semmling J. Beckheinrich J. Wickert G. Beyerle S. Schön F. Fabra H. Pflug K. He J. Schwabe

Sea surface topography observations are deduced from an airborne reflectometry experiment. A GNSS (Global Navigation Satellite System) receiver dedicated for reflectometry was set up aboard the German HALO (High Altitude Long Range) research aircraft. Flights were conducted over the Mediterranean Sea about 3500m above sea level. A signal path model divided into largeand small-scale contribution...

2017
Massimiliano Cardinale Giuseppe Scarcella

North East Atlantic and the Mediterranean Sea fisheries are governed by the European Common Fisheries Policy (CFP). Despite the fact that both areas are managed under the same broad fishery management system, a large discrepancy in management performance occurs, with recent considerable improvement of stock status witnessed in the North East Atlantic and a rapidly deteriorating situation in the...

2011
Sarah Faulwetter Georgios Chatzigeorgiou Bella S. Galil Christos Arvanitidis

The syllid fauna of three locations in Crete and Israel (eastern Mediterranean Sea) was studied, yielding 82 syllid species, many of which were found for the first time in the respective areas: Seventeen species were recorded for the first time on the Israeli coasts and 20 in Greek waters. Perkinsyllis augeneri (Hartmann-Schröder, 1979) and Prosphaerosyllis chauseyensis Olivier et al., 2011 are...

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