Graduate School of Marine Sciences

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Kıdeyş, Ahmet Erkan (170)
Salihoğlu, Barış (114)
Gücü, Ali Cemal (107)
Özkan, Korhan (103)
Tuğrul, Süleyman (94)

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Recent Submissions

Advancing Black Sea Research and Innovation to Co-Develop Blue Growth within Resilient Ecosystems Salihoğlu, Barış; Yücel, Mustafa(2025-11-30) Strengthening science-based policy in the Black Sea ; Vulnerable and unique, the Black Sea’s ecosystem services are under threat from multi-stressors such as pollution and overfishing because of climate and anthropogenic ...
Developing Optimal and Open Research Support for the Black Sea Fach Salihoğlu, Bettina Andrea(2025-5-31) The Black Sea is a unique sea basin, rich in biodiversity, geological and cultural heritage, which is subject to combined effects of natural and human-induced stressors. The Black Sea Strategic Research and Innovation Agen...
Seafloor nutrient biogeochemistry and benthic fluxes in the Northeastern Mediterranean sea Akçay, İsmail; Tuğrul, Süleyman; Yücel, Mustafa (2025-02-01) The coastal ecosystem of the Northeastern (NE) Mediterranean Sea has been affected by nutrient inputs originated from regional rivers and wastewater discharges. Sediment porewater nutrient fluxes into the deep waters are s...
Antioxidant Capacity and Protein contents of Five Marine Microalgae Yaman, Halil; Eker-Develi, Elif; Keles, Yuksel; Örek, Hasan; Kıdeyş, Ahmet Erkan (2025-01-01) Antioxidant capacity, chlorophyll, marker pigment, and protein contents of four diatoms (Helicotheca tamesis, Haslea silbo, Nitzschia navis-varingica, and Asterionellopsis glacialis) and one cyanobacterium (Spirulina subsa...
Allochthonous matter quality regulates functionality of lake zooplankton Yıldız, Dilvin; Yalçın, Gülce; Calderó-Pascual, Maria; Metin, Melisa; Kavak, Pınar; Dede, Cemreay; Spoljar, Maria; Gottstein, Sanja; McCarthy, Valerie; Nejstgaard, Jens Christian; Jeppesen, Erik; Ger, Kemal Ali; Beklioğlu, Meryem (2025-01-01) While numerous studies have investigated the effects of climate-induced increase of allochthonous matter (AM), the differential impacts of multiple AM sources on plankton dynamics are poorly understood. Here, we investigat...
State of the art modelling for the Black Sea ecosystem to support European policies Serpetti, Natalia; Piroddi, Chiara; Akoğlu, Ekin; Garcia-Gorriz, Elisa; Miladinova, Svetla; Macias, Diego (2025-01-01) The Black Sea is affected by numerous anthropogenic pressures, such as eutrophication and pollution through coastal and river discharges, fisheries overexploitation, species invasions, and the impacts of climate change. Gr...
Implementing regional blue economy research and innovation strategies: a case study for the Black Sea Salihoglu, Baris; Yücel, Mustafa; Uygurer, Pinar; Yücel, Ezgi Şahin; Papathanassiou, Evangelos; Tezcan, Devrim; Stanica, Adrian; Stanciu, Irina; Moncheva, Snejana Petrova; Dzhembekova, Nina; Stefanova, Kremena Blagovestova; Komorin, Viktor; Castravet, Tudor; Bilashvili, Kakhaber; Melikidze, Valerian; Gvilava, Mamuka; Kobaidze, Salome (2024-11-01)
Presence of microplastics in human stomachs Özsoy, Sait; GÜNDOĞDU, SEDAT; Sezigen, Sermet; Tasalp, Esra; Ikiz, Durmuş Arinc; Kıdeyş, Ahmet Erkan (2024-11-01) This study presents the first definitive confirmation of microplastic presence in the human stomach, based on samples from 26 cadavers. 97 microplastic particles were extracted from stomach contents, across all 26 individu...
Impact of cross-shelf exchange events on eutrophication and primary production variability in the Black Sea Fach Salihoğlu, Bettina Andrea; Arkin, Sinan; Sadighrad, Ehsan; Acar, Ali Osman; Dişa, Deniz; Tezcan, Devrim; Salihoğlu, Barış (2024-10-09) The unique physical and biogeochemical properties of the Black Sea make it difficult to adopt common models that are used to study different seas in the world. It is a major challenge to model in terms of biogeochemistry a...
Greenhouse Gas Dynamics of Saline Lakes: A Study on the Impacts of Environmental Change Yılmaz, Gültekin; Özkan, Korhan; Beklioğlu, Meryem; Department of Oceanography (2024-10-03) Saline lakes, increasingly impacted by climate change and land use, play an important role in the global carbon and nitrogen cycles. This thesis study examined the complex factors influencing greenhouse gas (GHG) emissions...
THE EFFECTS OF MARINE PROTECTED AREAS ON THE ECOSYSTEM IN THE EASTERN MEDITERRANEAN Eşkinat, Deniz; Gücü, Ali Cemal; Department of Marine Biology and Fisheries (2024-9-4) Marine Protected Areas (MPAs) are primary tools for restoring degraded marine ecosystems affected by various stressors. Although numerous studies have acknowledged and demonstrated their effectiveness, their effects and ef...
Investigating the impact of cross-shelf transport and local retention in the Black Sea Rim Current system on small pelagic fishes Fach Salihoğlu, Bettina Andrea; Cagdas, Bulut; Arkin, Sinan S.; Salihoglu, Baris; Tezcan, Devrim (2024-09-01) Advection of pelagicfish larvae through ocean currents is a source of dispersal that is known to structure marine populations by directly impacting population success and persistence. To be able to understandfish populatio...
Sustainable management of mesopelagic resources Salihoğlu, Barış(2024-8-31) Fishing sustainably at greater depths; The SUMMER project will explore recent findings that suggest that the mesopelagic zone of oceans contains 90 % of the planet’s fish biomass. Even if a fraction of this is correct, th...
Causal feedback loops modify lake chlorophyll <i>a</i>-nutrient relationships over two decades of nutrient reductions and climate warming Fu, Hui; Özkan, Korhan; Johansson, Liselotte Sander; Søndergaard, Martin; Lauridsen, Torben Linding; Yuan, Guixiang; Jeppesen, Erik (2024-08-23) Understanding how the causal feedback between phytoplankton and environmental drivers controlling the chlorophyll a (Chl a, as a proxy of phytoplankton biomass)-nutrient relationships are modulated under different ecosyste...
Genetic and Morphological Diversity of Botryllus schlosseri on the Turkish Coast Tohumcu, Begüm Ece; Öztürk, Esra; Karahan, Arzu (2024-07-31) Botryllus schlosseri is a vital model organism in the botryllid ascidian species. It is a crucial reference point for phylogenetic studies due to its ancestral position within the chordate lineage. Despite its acknowledged...
Phytoplankton Patchiness Around the Gksu River Estuary (North-Eastern Mediterranean) Tohumcu, Begüm Ece; Uysal, Zahit (2024-07-29) Göksu river estuary was studied seasonally to reveal impact of contrasting water masseswith varying trophicity on the phytoplankton distribution. Samples were collected fromtotal 51 stations representing nutrient-rich Göks...
Combination of Measurements of the Top Quark Mass from Data Collected by the ATLAS and CMS Experiments at Formula Presented and 8 TeV Hayrapetyan, A.; et. al. (2024-06-28) A combination of fifteen top quark mass measurements performed by the ATLAS and CMS experiments at the LHC is presented. The datasets used correspond to an integrated luminosity of up to 5 and Formula Presented of proton-p...
Plankton Community Metabolism Variations in Two Temperate Coastal Waters of Contrasting Nutrient Richness Mantıkcı, Asım Mustafa; Bentzon-Tilia, Mikkel; Traving, Sachia J.; Knudsen-Leerbeck, Helle; Riemann, Lasse; Hansen, Jorgen L. S.; Markager, Stiig (2024-06-01) Estuarine ecosystems play a crucial role in global carbon cycling. Understanding the factors controlling plankton metabolism in these regions is critical. This study investigates how contrasting nutrient conditions influen...
Thermodynamic Predictions of Hydrogen Generation during the Serpentinization of Harzburgite with Seawater-derived Brines Som, Sanjoy M.; Sevgen, Serhat; Suttle, Adam A.; Bowman, Jeff S.; Schmidt, Britney E. (2024-06-01) Salty aqueous solutions (brines) occur on Earth and may be prevalent elsewhere. Serpentinization represents a family of geochemical reactions where the hydration of olivine-rich rocks can release aqueous hydrogen, H2(aq), ...
Re-oligotrophication and warming stabilize phytoplankton networks Fu, Hui; Cai, Guojun; Özkan, Korhan; Johansson, Liselotte Sander; Søndergaard, Martin; Lauridsen, Torben L.; Yuan, Guixiang; Jeppesen, Erik (2024-04-01) Phytoplankton taxa are strongly interconnected as a network, which could show temporal dynamics and non-linear responses to changes in drivers at both seasonal and long-term scale. Using a high quality dataset of 20 Danish...

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