Spatial variability of meiofaunal communities at areas of contrasting depth and productivity in the Aegean Sea (NE Mediterranean)

2006 ◽  
Vol 69 (1) ◽  
pp. 19-36 ◽  
Author(s):  
N. Lampadariou ◽  
A. Tselepides
Keyword(s):  
Spatial Variability ◽  
Aegean Sea ◽  
Ne Mediterranean

Growth and feeding patterns of European anchovy (Engraulis encrasicolus) early life stages in the Aegean Sea (NE Mediterranean)

2010 ◽  
Vol 86 (2) ◽  
pp. 299-312 ◽  
Author(s):  
Ignacio A. Catalán ◽  
Arild Folkvord ◽  
Isabel Palomera ◽  
Gemma Quílez-Badía ◽  
Fotini Kallianoti ◽  
...  
Keyword(s):  
Early Life ◽  
Aegean Sea ◽  
Life Stages ◽  
Early Life Stages ◽  
Feeding Patterns ◽  
European Anchovy ◽  
Engraulis Encrasicolus ◽  
Ne Mediterranean ◽  
European Anchovy Engraulis Encrasicolus

scholarly journals Coccolithophore assemblage response to Black Sea Water inflow into the North Aegean Sea (NE Mediterranean)

2017 ◽  
Vol 149 ◽  
pp. 138-150 ◽  
Author(s):  
B.-Th. Karatsolis ◽  
M.V. Triantaphyllou ◽  
M.D. Dimiza ◽  
E. Malinverno ◽  
A. Lagaria ◽  
...  
Keyword(s):  
Black Sea ◽  
Sea Water ◽  
Aegean Sea ◽  
Water Inflow ◽  
The North ◽  
North Aegean ◽  
Ne Mediterranean ◽  
North Aegean Sea

scholarly journals Coralligenous formations dominated by Eunicella cavolini (Koch, 1887) in the NE Mediterranean: biodiversity and structure

2019 ◽  
Author(s):  
MARIA SINI ◽  
JOAQUIM GARRABOU ◽  
VASILIS TRYGONIS ◽  
DROSOS KOUTSOUBAS
Keyword(s):  
Structural Complexity ◽  
Aegean Sea ◽  
Coralline Algae ◽  
Anthropogenic Factors ◽  
Species Number ◽  
Percent Cover ◽  
Biogenic Structures ◽  
Nw Mediterranean ◽  
Ne Mediterranean

Coralligenous formations are biogenic structures typical of the underwater Mediterranean seascape. Their intricate, multi-layered species assemblages are composed of perennial, long-lived organisms, particularly vulnerable to natural or human-induced disturbances. Despite their high ecological role and conservation value, few studies have addressed the assemblages outside the NW Mediterranean. This is the first quantitative assessment of coralligenous in the N Aegean Sea (NE Mediterranean), specifically focusing at the upper bathymetric limit of assemblages that are dominated by the yellow gorgonian Eunicella cavolini. The number and percent cover of macrobenthic species were studied at depths of 18 to 35 m, using a photoquadrat method. A total of 99 benthic taxa were identified, out of which 89 perennial ones were used to investigate spatial patterns in assemblage structure, composition, and biodiversity. A mean number of 47 perennial taxa were recorded per site, with encrusting coralline algae and sponges being the dominant groups in percent cover and species number, respectively. Across the studied localities, structural complexity and community composition were overall similar, but assemblages presented distinctive differences at the level of sites highlighting the role of local abiotic and anthropogenic factors in the shaping of the coralligenous. Compared to the rest of the Mediterranean, assemblages hosted a similar number of taxa. However, the number and percent cover of erect bryozoans were generally low, while, apart from E. cavolini, other erect anthozoan species were absent. This work provides an important baseline for comparisons and monitoring at a local or Mediterranean scale level. 

Coupling plankton - sediment trap - surface sediment coccolithophore regime in the North Aegean Sea (NE Mediterranean)

2019 ◽  
Vol 152 ◽  
pp. 101729 ◽  
Author(s):  
E. Skampa ◽  
M.V. Triantaphyllou ◽  
M.D. Dimiza ◽  
A. Gogou ◽  
E. Malinverno ◽  
...  
Keyword(s):  
Surface Sediment ◽  
Sediment Trap ◽  
Aegean Sea ◽  
Trap Surface ◽  
The North ◽  
North Aegean ◽  
Ne Mediterranean ◽  
North Aegean Sea

Seasonal and Spatial Variability of SST Using MODIS Data: the Case Study of Aegean Sea

2015 ◽  
Vol 5 (0) ◽  
pp. 25 ◽  
Author(s):  
Kontsantinos Topouzelis ◽  
Stefani Varnava ◽  
Andreas Georgiou
Keyword(s):  
Spatial Variability ◽  
Aegean Sea ◽  
Modis Data

scholarly journals Spatial Variability and Trends of Marine Heat Waves in the Eastern Mediterranean Sea over 39 Years

2021 ◽  
Vol 9 (6) ◽  
pp. 643
Author(s):  
Omneya Ibrahim ◽  
Bayoumy Mohamed ◽  
Hazem Nagy
Keyword(s):  
Spatial Variability ◽  
Mediterranean Sea ◽  
Heat Waves ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Sea Surface ◽  
Sea Level Pressure ◽  
Eastern Mediterranean Sea ◽  
Marine Life ◽  
The Mean

Marine heatwaves (MHWs) can cause devastating impacts on marine life. The frequency of MHWs, gauged with respect to historical temperatures, is expected to rise significantly as the climate continues to warm. The MHWs intensity and count are pronounced with many parts of the oceans and semi enclosed seas, such as Eastern Mediterranean Sea (EMED). This paper investigates the descriptive spatial variability and trends of MHW events and their main characteristics of the EMED from 1982 to 2020 using Sea Surface Temperature (SST) data obtained from the National Oceanic and Atmospheric Administration Optimum Interpolation ([NOAA] OI SST V2.1). Over the last two decades, we find that the mean MHW frequency and duration increased by 40% and 15%, respectively. In the last decade, the shortest significant MHW mean duration is 10 days, found in the southern Aegean Sea, while it exceeds 27 days off the Israeli coast. The results demonstrate that the MHW frequency trend increased by 1.2 events per decade between 1982 and 2020, while the MHW cumulative intensity (icum) trend increased by 5.4 °C days per decade. During the study period, we discovered that the maximum significant MHW SST event was 6.35 °C above the 90th SST climatology threshold, lasted 7 days, and occurred in the year 2020. It was linked to a decrease in wind stress, an increase in air temperature, and an increase in mean sea level pressure.

Macrobenthic community structure over the continental margin of Crete (South Aegean Sea, NE Mediterranean)

2000 ◽  
Vol 46 (2-4) ◽  
pp. 401-428 ◽  
Author(s):  
Anastasios Tselepides ◽  
Konstantia-N Papadopoulou ◽  
Dimitris Podaras ◽  
Wanda Plaiti ◽  
Drosos Koutsoubas
Keyword(s):  
Community Structure ◽  
Continental Margin ◽  
Aegean Sea ◽  
Macrobenthic Community ◽  
Macrobenthic Community Structure ◽  
Ne Mediterranean

scholarly journals Recovery of the commercial sponges in the central and southeastern Aegean Sea (NE Mediterranean) after an outbreak of sponge disease

2011 ◽  
Vol 12 (1) ◽  
pp. 5 ◽  
Author(s):  
J. CASTRITSI-CATHARIOS ◽  
H. MILIOU ◽  
K. KAPIRIS ◽  
E. KEFALAS
Keyword(s):  
Multivariate Analysis ◽  
Aegean Sea ◽  
Coastal Areas ◽  
Hydrographic Conditions ◽  
Sponge Disease ◽  
Ne Mediterranean ◽  
Percentage Abundance ◽  
Spongia Officinalis ◽  
Cretan Sea

The distribution and biometry of commercial sponges (Porifera) in coastal areas of the central and southeastern Aegean Sea was investigated to estimate the recovery progress of the populations eight years after the first appearance of sponge disease. Signs of the disease were detected only in 1.6% of the harvested sponges. Multivariate analysis on the percentage abundance of sponges showed two distinct groups among the sixteen fishing grounds studied: the eight deep (50-110 m) and the eight shallow ones (<40 m). The group from the deep depths consisted of Spongia officinalis adriatica, S. agaricina and S. zimocca. The infralittoral zone was characterized by the presence of Hippospongia communis, S. officinalis adriatica and S. officinalis mollissima. These bath sponges showed an enhanced abundance in the eastern Cretan Sea (S. Aegean Sea). In addition, their dimensions, particularly height, increased with increasing depth. It is indicated that the hydrographic conditions prevailing in the eastern Cretan Sea affected the repopulating processes of sponge banks. In each species, the biometric characteristics of the experimental specimens were similar to those of the sponges found in the market and harvested at respective depths prior to the appearance of sponge disease.

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