Redescription of Fabriciola tonerella Banse, 1959, and a new record of Novafabricia infratorquata (Fitzhugh, 1983) from the Mediterranean Sea, with a key for the Fabriciinae (Annelida: Polychaeta) of the Mediterranean Sea and the north-east Atlantic

2005 ◽  
Vol 244 (2) ◽  
pp. 137-152 ◽  
Author(s):  
Andreas Bick
2013 ◽  
Vol 10 (5) ◽  
pp. 3039-3054 ◽  
Author(s):  
T. Morato ◽  
K. Ø. Kvile ◽  
G. H. Taranto ◽  
F. Tempera ◽  
B. E. Narayanaswamy ◽  
...  

Abstract. This work aims at characterising the seamount physiography and biology in the OSPAR Convention limits (north-east Atlantic Ocean) and Mediterranean Sea. We first inferred potential abundance, location and morphological characteristics of seamounts, and secondly, summarized the existing biological, geological and oceanographic in situ research, identifying examples of well-studied seamounts. Our study showed that the seamount population in the OSPAR area (north-east Atlantic) and in the Mediterranean Sea is large with around 557 and 101 seamount-like features, respectively. Similarly, seamounts occupy large areas of about 616 000 km2 in the OSPAR region and of about 89 500 km2 in the Mediterranean Sea. The presence of seamounts in the north-east Atlantic has been known since the late 19th century, but overall knowledge regarding seamount ecology and geology is still relatively poor. Only 37 seamounts in the OSPAR area (3.5% of all seamounts in the region), 22 in the Mediterranean Sea (9.2% of all seamounts in the region) and 25 in the north-east Atlantic south of the OSPAR area have in situ information. Seamounts mapped in both areas are in general very heterogeneous, showing diverse geophysical characteristics. These differences will likely affect the biological diversity and production of resident and associated organisms.


2000 ◽  
Vol 136 (2) ◽  
pp. 191-199 ◽  
Author(s):  
L. Zane ◽  
L. Ostellari ◽  
L. Maccatrozzo ◽  
L. Bargelloni ◽  
J. Cuzin-Roudy ◽  
...  

2012 ◽  
Vol 9 (12) ◽  
pp. 18951-18992 ◽  
Author(s):  
T. Morato ◽  
K. Ø. Kvile ◽  
G. H. Taranto ◽  
F. Tempera ◽  
B. E. Narayanaswamy ◽  
...  

Abstract. This work aims at characterising the seamount physiography and biology in the OSPAR Convention limits (North-East Atlantic Ocean) and Mediterranean Sea. We first inferred potential abundance, location and morphological characteristics of seamounts, and secondly, summarized the existing biological, geological and oceanographic in-situ research, identifying examples of well-studied seamounts. Our study showed that the seamount population in the OSPAR area (North-East Atlantic) and in Mediterranean Sea is large with around 1061 and 202 seamount-like features, respectively. Similarly, seamounts occupy large areas of about 1 116 000 km2 in the OSPAR region and of about 184 000 km2 in the Mediterranean Sea, which is much larger than previously thought. The presence of seamounts in the North-East Atlantic has been known since the late 19th Century but overall knowledge regarding seamount ecology and geology is still relatively poor. Only 37 seamounts in the OSPAR area (3.5% of all seamounts in the region), 22 in the Mediterranean Sea (9.2% of all seamounts in the region) and 25 in the North-East Atlantic south of the OSPAR have in-situ information. Seamounts mapped in both areas are in general very heterogeneous, showing diverse geophysical characteristics. These differences will likely affect the biological diversity and production of resident and associated organisms.


2018 ◽  
Vol 123 (8) ◽  
pp. 5481-5499 ◽  
Author(s):  
Gabriel Dulaquais ◽  
Matthieu Waeles ◽  
Loes J. A. Gerringa ◽  
Rob Middag ◽  
Micha J. A. Rijkenberg ◽  
...  

2012 ◽  
Vol 81 (3) ◽  
pp. 295-326 ◽  
Author(s):  
Yoshifumi Tanaka

In 2010, the Contracting-Parties to the Convention for the Protection of the Marine Environment of the North-East Atlantic (OSPAR Convention) created six marine protected areas (MPAs) on the high seas beyond 200 nautical miles with a view to protecting marine biological diversity. This is a significant step toward conservation of biological diversity on the high seas. The creation of high seas MPAs seems to provide a useful insight into the protection of community interests in marine spaces beyond the limits of national jurisdiction. At the same time, however, the creation of MPAs on the high seas raises some legal issues with regard to, inter alia, its legal ground, opposability to non-Contracting Parties, legitimacy, and practical implementation. Thus, this contribution seeks to examine legal issues regarding two types of MPAs on the high seas, namely: MPAs on the high seas which fall within potential exclusive economic zone of coastal States (the Mediterranean model) and MPAs on the high seas beyond 200 nautical miles (the North-East Atlantic model), respectively.


2020 ◽  
Vol 82 ◽  
pp. 117-136
Author(s):  
M Reale ◽  
S Salon ◽  
S Somot ◽  
C Solidoro ◽  
F Giorgi ◽  
...  

We investigated the effects of variations in the 4 primary mid-latitude large-scale atmospheric circulation patterns on nutrients potentially limiting phytoplankton growth in the Mediterranean Sea (nitrate and phosphate), with a focus on the key deep convective areas of the basin (Gulf of Lions, Southern Adriatic Sea, Southern Aegean Sea and Rhodes Gyre). Monthly indices of these 4 modes of variability, together with a high-resolution hindcast of the Mediterranean Sea physics and biogeochemistry covering the period 1961-1999, were used to determine the physical mechanisms explaining the influence of these patterns on nutrient distribution and variability. We found a decrease in the concentration of phosphate and nitrate for each unit of increase in the index values of the East Atlantic and East Atlantic/Western Russian variability modes in the area of the Gulf of Lions, while a signal of the opposite sign was associated with the North Atlantic Oscillation in the Aegean Sea and Rhodes Gyre. In both cases, the variability observed was related to a significant variation in the mixed layer depth driven by heat losses and wind stress over the areas. The East Atlantic pattern played a major role in driving the long-term dynamics of both phosphate and nitrate availability in the Gulf of Lions, with a particularly pronounced effect in December and January. For both the Aegean Sea and Rhodes Gyre, the most prominent correlations were found between the North Atlantic Oscillation and phosphate, with a highly consistent behavior in the 2 areas associated with common physical forcing and exchange of properties among them.


2019 ◽  
Vol 20 (2) ◽  
pp. 309 ◽  
Author(s):  
FRANCESCO COLLOCA ◽  
DANILO SCANNELLA ◽  
MICHELE LUCA GERACI ◽  
FABIO FALSONE ◽  
GIUSTO BATISTA ◽  
...  

The study reports information about the recapture of two tagged adult females of tope shark, Galeorhinus galeus (Linnaeus 1758), in the central Mediterranean Sea (south coasts of Sicily) in 2014 and 2017. The two females were tagged in North-East Atlantic, respectively in Scotland in 2009 and Ireland in 2015. The Scottish specimen was a 175 cm female increasing of about 10 kg in body weight and 37 cm in total length during its 1967 days at liberty (5.39 years). The Irish one, was a pregnant female of an estimated age of 15-17 year which spent 248 days at liberty increasing 14 cm during this period. The growth rate of the two specimens was therefore between 6.8 and 7.8 cm year-1, faster than the annual increments of adults suggested in previous studies. Previous tope recapture records in the Mediterranean Sea were limited to the Alboran Sea, coast of Valencia and the Algerian coasts. The two tope females recaptured in the Strait of Sicily provided the first evidence of long distance entrance of NE Atlantic tope in the Mediterranean Sea. The well known occurrence of mature females and juveniles in this area of the Mediterranean suggest the hypothesis of a migration of adults female from their feeding grounds in north eastern Atlantic to lower latitudes up to the Mediterranean Sea for parturition.


1986 ◽  
Vol 60 (4) ◽  
pp. 331-339 ◽  
Author(s):  
P. Orecchia ◽  
L. Paggi ◽  
S. Mattiucci ◽  
J. W. Smith ◽  
G. Nascetti ◽  
...  

ABSTRACTThe relationships between larvae and adults of Anisakis from the Mediterranean Sea and North-East Atlantic Ocean were analysed by multilocus electrophoresis. The correspondence of type I larvae with the A. simplex complex, including the sibling species A. simplex A and B, and of type II larvae with A. physeteris is confirmed. 19 of the 22 loci studied discriminated between the two larval types. Biochemical keys are given for the electrophoretic identification of A. simplex A, A. simplex B and A. physeteris, at both the larval and adult stages.


Zootaxa ◽  
2020 ◽  
Vol 4819 (1) ◽  
pp. 159-169
Author(s):  
MATÚŠ HYŽNÝ ◽  
ILDEFONSO BAJO CAMPOS ◽  
JOAQUÍN CÁRDENAS CARRETERO

Today representatives of the giant cirolanid isopods of the genus Bathynomus inhabit tropical to warm-temperate waters of the West Atlantic and the Indo-West Pacific. In not so distant geological past, however, the genus was present also in the Mediterranean, as documented by numerous fossils from the Plio–Pleistocene of Italy. Herein, a somewhat older occurrence of the genus is reported, from the North-East Atlantic. Based on a single posterior moult from the upper Miocene (Tortonian) of southwestern Spain, a new species is described. Bathynomus civisi sp. nov. differs from its congeners by both uropod rami having the obtuse distolateral corner produced as a distinct tip and a wider gap between the second and third side distal spines than between others. The new species is so far known only from the type locality in close vicinity of Arroyo Trujillo, in the municipality of Cantillana (Seville, Spain), where the marls of the Écija Formation are exposed. At the time of deposition of these marls, the area represented a part of the Norbetic Strait, a corridor connecting the North-East Atlantic with the Mediterranean. The new occurrence reported herein further supports the environmental preferences of the genus throughout its geological past for deep-marine settings.


2020 ◽  
Vol 10 (17) ◽  
pp. 5790
Author(s):  
Francisco Criado-Aldeanueva ◽  
Javier Soto-Navarro

The Mediterranean Sea, strategically situated across a dynamic frontier line that separates two regions with different climates (Europe and North Africa), has been the focus of attention of many studies dealing with its thermohaline circulation, deep water formation processes or heat and freshwater budgets. Large-scale atmospheric forcing has been found to play an important role in these topics and attention has been renewed in climatic indices that can be used as a proxy for atmospheric variability. Among them, the North Atlantic oscillation, the East Atlantic or the East Atlantic–West Russia patterns have been widely addressed but much less attention has been devoted to a Mediterranean mode, the Mediterranean oscillation. This overview summarizes the recent advances that have been achieved in the understanding of these climatic indices and their influence on the functioning of the Mediterranean from a physical point of view. The important role of the Mediterranean oscillation is emphasized and the most relevant aspects of the other indices are revisited and discussed.


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