scholarly journals Bryozoan diversity of Cyprus (eastern Mediterranean Sea): first results from census surveys (2011–2018)

2020 ◽  
Vol 21 (1) ◽  
pp. 228 ◽  
Author(s):  
KATERINA ACHILLEOS ◽  
CARLOS JIMENEZ ◽  
BJÖRN BERNING ◽  
ANTONIS PETROU
Keyword(s):  
Mediterranean Sea ◽  
New Records ◽  
Eastern Mediterranean ◽  
Soft Bottom ◽  
Habitat Types ◽  
Eastern Mediterranean Sea ◽  
Levantine Basin ◽  
First Results ◽  
Marine Areas ◽  
Comprehensive Study

The Mediterranean bryozoan fauna is considered to be well studied compared to other marine areas of the world. However, in the Levantine Basin, bryozoan diversity has not yet been adequately documented. This report presents the first systematic and most comprehensive study of bryozoans sampled in Cyprus during census surveys from 2011 to 2018. The specimens were collected between 9 and ~620 m depth from several habitat types (mainly soft-bottom environments but also hard natural/artificial substrata, ancient shipwrecks, a marine cave, and deep-water coral habitats) around the island by means of bottom trawls, remotely operated vehicles, and scuba diving. The surveys produced a total of 91 species, 26 of which (=28%) are new records for the Levantine Basin, and 10 (=11%) are probably new to science. Our results thus show that the diversity of bryozoans in the eastern Mediterranean Sea is still significantly underestimated.

First records of six species of crustaceans for the eastern Mediterranean Sea

Crustaceana ◽  
2019 ◽  
Vol 92 (11-12) ◽  
pp. 1403-1414
Author(s):  
Ozge Ozgen ◽  
Sermin Acik ◽  
Kerem Bakir
Keyword(s):  
Mediterranean Sea ◽  
New Record ◽  
New Records ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Posidonia Oceanica ◽  
The Other ◽  
Eastern Mediterranean Sea ◽  
Crustacean Species ◽  
Ecological Characteristics

Abstract This paper deals with six crustacean species associated with Posidonia oceanica (Linnaeus) Delile, 1813 meadows along the Aegean coasts of Turkey: Caprella tavolarensis, Eriopisella ruffoi, Iphimedia vicina, Astacilla mediterranea, Apseudopsis minimus and Macropodia deflexa. Apseudopsis minimus is a new record for the Turkish coast of the Aegean Sea, the other five species are new records for the eastern Mediterranean. Brief descriptions of the species and their morphological and ecological characteristics are given.

Modeling the effects of brine outflow from desalination plants on coastal food-webs of the Levantine basin (eastern Mediterranean Sea)

Desalination ◽  
2020 ◽  
Vol 496 ◽  
pp. 114757
Author(s):  
Michal Grossowicz ◽  
Eyal Ofir ◽  
Ateret Shabtay ◽  
Julie Wood ◽  
Eli Biton ◽  
...  
Keyword(s):  
Food Webs ◽  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Eastern Mediterranean Sea ◽  
Levantine Basin ◽  
Desalination Plants

scholarly journals Seasonal and Interannual Variability of the CO2 System in the Eastern Mediterranean Sea: A Case Study in the North Western Levantine Basin

2021 ◽  
Vol 8 ◽  
Author(s):  
Cathy Wimart-Rousseau ◽  
Thibaut Wagener ◽  
Marta Álvarez ◽  
Thierry Moutin ◽  
Marine Fourrier ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Annual Cycle ◽  
Eastern Mediterranean ◽  
Total Alkalinity ◽  
Carbonate System ◽  
Eastern Mediterranean Sea ◽  
The North ◽  
Levantine Basin ◽  
The Future ◽  
North Western

The seasonal variability of the carbonate system in the eastern Mediterranean Sea (EMed) was investigated based on discrete total alkalinity (AT), total dissolved inorganic carbon (CT), and pH measurements collected during three cruises around Crete between June 2018 and March 2019. This study presents a detailed description of this new carbonate chemistry dataset in the eastern Mediterranean Sea. We show that the North Western Levantine Basin (NWLB) is unique in terms of range of AT variation vs. CT variation in the upper water column over an annual cycle. The reasons for this singularity of the NWLB can be explained by the interplay between strong evaporation and the concomitant consumption of CT by autotrophic processes. The high range of AT variations, combined to temperature changes, has a strong impact on the variability of the seawater pCO2 (pCO2SW). Based on Argo float data, an entire annual cycle for pCO2SW in the NWLB has been reconstructed in order to estimate the temporal sequence of the potential “source” and “sink” of atmospheric CO2. By combining this dataset with previous observations in the NWLB, this study shows a significant ocean acidification and a decrease in the oceanic surface pHT25 of −0.0024 ± 0.0004 pHT25 units.a–1. The changes in the carbonate system are driven by the increase of atmospheric CO2 but also by unexplained temporal changes in the surface AT content. If we consider that the EMed will, in the future, encounter longer, more intense and warmer summer seasons, this study proposes some perspectives on the carbonate system functioning of the “future” EMed.

Composition and distribution patterns of eukaryotic microbial plankton in the ultra-oligotrophic Eastern Mediterranean Sea

2020 ◽  
Vol 84 ◽  
pp. 155-173
Author(s):  
I Santi ◽  
P Kasapidis ◽  
S Psarra ◽  
G Assimakopoulou ◽  
A Pavlidou ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Deep Sea ◽  
Environmental Variables ◽  
Eastern Mediterranean ◽  
Distribution Patterns ◽  
Eastern Mediterranean Sea ◽  
Operational Taxonomic Units ◽  
Microbial Eukaryotes ◽  
Levantine Basin ◽  
Microbial Plankton

Marine microbial eukaryotes play crucial roles in water-column ecosystems; however, there are regional gaps in the investigation of natural microbial eukaryote communities, and uncertainties concerning their distribution persevere. This study combined 18S rRNA metabarcoding, biomass measurements and statistical analyses of multiple environmental variables to examine the distribution of planktonic microbial eukaryotes at different sites and water layers in the ultra-oligotrophic Eastern Mediterranean Sea (Western Levantine Basin). Our results showed that microbial eukaryotic communities were structured by depth. In surface waters, different sites shared high percentages of molecular operational taxonomic units (MOTUs), but this was not the case for deep-sea communities (≥1000 m). Plankton biomass was significantly different among sites, implying that communities of a similar composition may not support the same activity or population size. The deep-sea communities showed high percentages of unassigned MOTUs, highlighting the sparsity of the existing information on deep-sea plankton eukaryotes. Water temperature and dissolved organic matter significantly affected community distribution. Micro-eukaryotic distribution was additionally affected by the nitrogen to phosphorus ratio and viral abundance, while nano- and pico-communities were affected by zooplankton. The present study explores microbial plankton eukaryotes in their natural oligotrophic environment and highlights that, even within restricted oceanic areas, marine plankton may follow distribution patterns that are largely controlled by environmental variables.

An Account of Our Knowledge of the Amphipod Fauna of the Aegean Sea

Crustaceana ◽  
1995 ◽  
Vol 68 (5) ◽  
pp. 597-615 ◽  
Author(s):  
E. Voultsiadou-Koukoura ◽  
D. Stefanidou
Keyword(s):  
Mediterranean Sea ◽  
New Records ◽  
Eastern Mediterranean ◽  
Relevant Literature ◽  
Aegean Sea ◽  
Amphipod Species ◽  
Eastern Mediterranean Sea ◽  
Northern Aegean Sea ◽  
First Time ◽  
Interesting Species

AbstractDuring benthic surveys in the northern Aegean Sea, 188 amphipod species were found; 39 among these comprise new records for the amphipod fauna of the eastern Mediterranean Sea, 41 are reported for the first time from the Aegean Sea and 62 are new for the fauna of the northern Aegean Sea. A checklist of the amphipods known from the Aegean Sea up to the present is given (239 species), along with their distribution in certain Mediterranean areas. For the most interesting species found, information on their distribution and their habitat is given. The amphipod fauna of the above areas is estimated, on the basis of the relevant literature. Finally, the affinities among these areas using the coefficient of Czekanowski, along with the number of species common to each pair of areas, are estimated.

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