Sevinc Erdal Inonu Foundation

İstanbul, Turkey

Sevinc Erdal Inonu Foundation

İstanbul, Turkey
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Yalcn B.,Marmara University | Artuz M.L.,Sevinc Erdal Inonu Foundation | Pavlidou A.,Hellenic Center for Marine Research | Cubuk S.,Marmara University | Dassenakis M.,National and Kapodistrian University of Athens
Science of the Total Environment | Year: 2017

This work was implemented to study the physicochemical and biological characteristics of the Sea of Marmara and the Turkish straits (TSS: Bosporus and Dardanelles straits) for the period 2010–2013 and to calculate winter and summer fluxes of nutrients (nitrates, phosphates) between the Aegean and Black Seas through the TSS. The brackish Black Sea waters reach the Dardanelles Strait with modified biochemical properties. The salinity and phosphates of the surface waters increased westwards. Biologically labile nutrients of Black Sea origin are utilized through biological processes in the Marmara Sea. On the other hand, increase of nutrients due to land based sources has led to eutrophication problems in the area. The sub surface water layer of Mediterranean origin is oxygen depleted (saturation < 30%) and rich in nutrients. Higher oxygen values indicated water mixing of the Sea of Marmara during winter 2012. Ammonium was the predominant form of inorganic nitrogen. The study area has been classified from Moderate to Bad trophic status. İzmit Bay also faced serious eutrophication problems together with hypoxic conditions below the halocline. Nutrient fluxes through the TSS showed temporal variation in the upper and lower layers related to changes in both nutrient concentrations and the water mass volume fluxes. Surface nitrates and phosphates outflux from the Sea of Marmara to the Aegean Sea was higher than the influx from the Black Sea through Bosporus strait, indicating high enrichment of nutrients in the Sea of Marmara from anthropogenic sources. © 2017 Elsevier B.V.

Artuz L.,Sevinc Erdal Inonu Foundation | Erdogan Z.,Balikesir University | Torcu Koc H.,Balikesir University | Sonmez B.,Sevinc Erdal Inonu Foundation | Aydemir A.,Sevinc Erdal Inonu Foundation
Journal of Applied Ichthyology | Year: 2010

In August 2008 eight specimens of the hollowsnout grenadier, Coelorhynchus coelorhyncus, were caught by beam trawl off Barbaros in the Sea of Marmara, Turkey. The study represents the first record of this species in the Sea of Marmara. © 2009 Blackwell Verlag, Berlin.

Levent Artuz M.,Sevinc Erdal Inonu Foundation
Marine Biodiversity Records | Year: 2016

Background: In the various sites in Sea of Marmara, copepoda Acartia (Acartiura) clausi, Calanus euxinus, Centropages ponticus were invaded by Ellobiopsis chattoni. Results: This study provides the first evidence of Centropages ponticus and Calanus euxinus being a host to Ellobiopsis chattoni and the first record of Ellobiopsis chattoni in the Sea of Marmara, Turkey. Conclusions: Also this study emphasizes the consequences of parasitic infection in the case of the special position of Sea of Marmara. © 2016 The Author(s).

Artuz M.L.,Sevinc Erdal Inonu Foundation | Gulen D.,Sevinc Erdal Inonu Foundation | Kubanc C.,Istanbul University
Zoology in the Middle East | Year: 2013

Cytherella maremensis sp. n., belonging to the family Cytherellidae, is described as new from a hydrothermal vent, located in the west of Marmara Island on the North Anatolian Fault crossing the Sea of Marmara. It was collected from a sediment core 55 m below sea level. Cytherella maremensis sp. n. is clearly separated from closely related species by its shape, length-height ratio and ornamentation. © 2013 Taylor & Francis.

Artuz M.L.,Sevinc Erdal Inonu Foundation | Sonmez B.,Sevinc Erdal Inonu Foundation | Kubanc C.,Istanbul University
Crustaceana | Year: 2014

A total of 24 specimens of Monodaeus guinotae Forest, 1976 were obtained in beam-trawl surveys on 8 August 2008, 2 August 2011 and 4 August 2011 at depths of 56, 65 and 40 m, respectively, in the Sea of Marmara. M. guinotae is reported in this study as a first record for the Sea of Marmara and the status of the species is discussed in relation to its closely similar congener, M. couchii (Couch, 1851). Also, possible reasons for its occurrence are investigated according to the effects of pollution and of the various water masses in the Sea of Marmara. © 2014 by Koninklijke Brill NV, Leiden.

Artuz M.L.,Sevinc Erdal Inonu Foundation | Kubanc C.,Istanbul University
Crustaceana | Year: 2015

Two new species of isopod crustaceans belonging to the genus Stenosoma Leach, 1814 (Valvifera, Idoteidae) are described, illustrated, and compared with the other known species of the genus. The new species can be distinguished both from each other and from all their congeners by having a maxilliped with two coupling hooks; length of the appendix masculina on pleopod II; and an antennal flagellum with 12 articles in Stenosoma aaseni sp. nov.; and by having a pair of distinctive lateral spinous tubercles on pereonites I-II; and a pereon with a part of a mid-dorsal carina on the posterior half of each of the pereonites in Stenosoma inonuei sp. nov.; the two new species also differ in the morphology of mouthparts, pleotelson, and pereopods. Both new species were collected from seagrass meadows, colonized predominantly by Zostera (Zostera) marina Linnaeus, 1753 and Posidonia oceanica (Linnaeus) Delile, 1813, in the Sea of Marmara, Turkey. An up-to-date morphological identification key to species level for to genus Stenosoma is also provided. © Koninklijke Brill NV, Leiden, 2015.

Artuz M.L.,Sevinc Erdal Inonu Foundation | Sonmez B.,Sevinc Erdal Inonu Foundation | Kubanc C.,Istanbul University
Marine Biodiversity Records | Year: 2014

Aggregates of the Polychaeta Phyllochaetopterus socialis were recorded for the first time off Gemlik Bay in the Sea of Marmara, in August 2008. These were found at about 53 m depth, on the soft sediments around the sub-sea part of the North Anatoly Earthquake Fault. Samples were landed by beam trawl. Total wet weight of the mats was 58 kg. Forty-three species belonging to 10 phyla associated with P. socialis were recorded from the whole landing materials. Echinodermata and Gastropoda were the most abundant (12 and 8 species, respectively). Shannon-Wiener diversity and Margalef species richness indices were applied to analyse the structure of benthic communities. Presence and abundance lognormal distribution of the species and communities in mat habitat are shown. The hydrographic environment of the water mass is also discussed. © Marine Biological Association of the United Kingdom, 2014.

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