Graduate School of Marine Sciences

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Kıdeyş, Ahmet Erkan (27)
Tuğrul, Süleyman (27)
Uysal, Zahit (23)
Gücü, Ali Cemal (19)
Yücel, Mustafa (16)

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Oceanography (15)
Black Sea (10)
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Eastern Mediterranean (5)

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1981 - 1989 (11)
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2020 - 2025 (48)

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Journal Article (99)
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Master Thesis (27)
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Recent Submissions

Fish assemblages in the trawling grounds of Northeastern Mediterranean: Comparison between the 1980s and 2020s Kurt, Merve; Gücü, Ali Cemal (2025-09-11) Since the opening of the Suez Canal, the Eastern Mediterranean has been continuously affected by the influx of non-indigenous species (NIS), leading to significant changes in species composition. In this study, we focus on...
Asexual reproduction and regenerative responses of botryllid ascidians to salinity and temperature variations Ogul Unal, Fatima Nur; Unal, Mert Koray; Karahan, Arzu (2025-09-01) The unique reproductive strategies of botryllid ascidians, which include both asexual and sexual mechanisms as well as an extensive capacity for regeneration, contribute to their fast population growth and wide-ranging eco...
MODELLING DISPERSAL AND CONNECTIVITY OF ANTARCTIC KRILL IN THE LAZAREV SEA AND ADJACENT SEAS Çağdaş, Bulut; Fach Salihoğlu, Bettina Andrea; Department of Oceanography (2025-9-1) The zooplankton species Antarctic krill, Euphausia superba, is a key organism in the Southern Ocean ecosystem that is recognized as a main component of the Antarctic marine food web. Antarctic krill is distributed all arou...
A Bathymetric And Seismic Investigation Of Submarine Landslides In The Southwestern Black Sea Şimşek, Şeval; Tezcan, Devrim; Department of Oceanography (2025-8-15) Submarine landslides are one of the important geological processes that shape the seafloor and can cause significant hazards in marine environments. This study investigates submarine landslides in the southwestern Black Se...
Long-term monitoring and bioaccumulation of heavy metals in European anchovy (<i>Engraulis encrasicolus</i>, Linnaeus, 1758) from the Romanian Black Sea area: A risk assessment perspective Oros, Andra; Galatchi, Madalina; Akkuş, Gizem (2025-01-01) This study examines the ecological and consumer safety implications of heavy contamination in anchovy (Engraulis encrasicolus, Linnaeus 1758), one of the most widely consumed small pelagic fish in the Romanian Black Sea. L...
Microplastics in Lake Sediments in Robert Island, Antarctica AYTAN, ÜLGEN; ŞENTÜRK KOCA, YASEMEN; Özkan, Korhan; KANDEMİR, RAİF (2024-12-01) Microplastic (MP) pollution was investigated in the sediment of lakes on Robert Island in the South Shetland Islands located in the northwest of the Antarctic Peninsula. Sediment samples were taken from a glacial lake (L1)...
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)
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...
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...
Response of water quality to short and long-term warming under two different salinities and climatic conditions: two Synchronized Mesocosm Experiments in Türkiye Özkan, Korhan; Yılmaz, Gültekin; Alves Amorım, Cıhelıo; Korkmaz, Mustafa; Koru, Meltem; Arık, İrem Gamze; Billah, Md Masum; Uyar, Zeynep Dilbe; Coşkun, Tolga; Arıkan, Onat; Beklioğlu, Meryem; Jeppesen, Erik (2024-06-06)
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...
Quality matters: Response of bacteria and ciliates to different allochthonous dissolved organic matter sources as a pulsed disturbance in shallow lakes Yalçın, Gülce; Yıldız, Dilvin; Calderó-Pascual, Maria; Yetim, Sinem; Şahin, Yiğit; Parakatselaki, Maria-Eleni; Avcı, Feride; Karakaya, Nusret; Ladoukakis, Emmanuel D.; Berger, Stella A.; Ger, Kemal Ali; Jeppesen, Erik; Beklioğlu, Meryem (2024-03-15) Shallow lake ecosystems are particularly prone to disturbances such as pulsed dissolved organic matter (allochthonous-DOM; hereafter allo-DOM) loadings from catchments. However, the effects of allo-DOM with contrasting qua...
Benthic biology influences sedimentation in submarine channel bends: Coupling of biology, sedimentation and flow Azpiroz-Zabala, M.; Sumner, E. J.; Cartigny, M. J. B.; Peakall, J.; Clare, M. A.; Darby, S. E.; Parsons, D. R.; Dorrell, R. M.; Özsoy, Emin; Tezcan, Devrim; Wynn, R. B.; Johnson, J. (2024-01-29) Submarine channels are key features for the transport of flow and nutrients into deep water. Previous studies of their morphology and channel evolution have treated these systems as abiotic, and therefore assume that physi...
The effects of salinization and climate change on shallow lakes of arid landscapes: two mesocosm experiments in two different climate zones in Türkiye Özkan, Korhan; Alves Amorim, Cihelio; Yılmaz, Gültekin; KORKMAZ, MUSTAFA; Pacheco, Juan Pablo; Yavuz, Gül Canan; Acar, Vildan; Can, Yasemin; Koru, Meltem; Özen, Can; AKYÜREK, SEVDA ZUHAL; BEKLİOĞLU, MERYEM; Jeppesen, Erik (2023-12-12)
Periphyton in a changing world: unravelling the effects of global change stressors on freshwater periphyton in shallow lake mesocosms Pacheco, Juan Pablo; Aznarez, Celina; Yu, Cao; Liu, Yang; Levi, Eti; KORKMAZ, MUSTAFA; Alves Amorim, Cihelio; Özkan, Korhan; Beklioğlu, Meryem; Battrup-Pedersen, Annette; Jeppesen, Erik (2023-11-10)
Sea surtace temperature tronts in the Levantine Basin of the Mediterranean Sea. Akpınar, Anıl; Fach Salihoğlu, Bettina Andrea (2023-05-02) Fronts are ubiquitous features in the ocean, having significant implications for oceanic and atmospheric environments, including; water masses, currents,ocean-atmosphere interactions, and ecosystems, particularly through c...
Comparison of Diffusive and Total Nutrient Fluxes from the Sediment of Mersin Bay, Northeastern Mediterranean Sea Akçay, İsmail (2023-04-01) In this study, sediment diffusive and total nutrient fluxes were calculated for the Mersin Bay, Northeastern (NE) Mediterranean Sea. Positive fluxes of nutrients from the sediments indicated that sediment acts as a source ...
High Precision Femtosecond Laser Ablation ICP-MS Measurement of Benthic Foraminiferal Mn-Incorporation for Paleoenvironmental Reconstruction: A Case Study From the Plio-Pleistocene Caribbean Sea Oegretmen, N.; Schiebel, R.; Jochum, K. P.; Galer, S.; Leitner, J.; Khanolkar, S.; Yücel, Mustafa; Stoll, B.; Weis, U.; Haug, G. H. (2022-10-01) Closure of the Central American Seaway (CAS) and hydrology of the Caribbean Sea triggered Northern Hemisphere Glaciation and played an important role in the Pliocene to modern-day climate re-establishing the deep and surfa...
Machine learning-based prediction of survival in cancer using multi-omics data Çoruh, Ayşe Nur; Doğan, Tunca (Orta Doğu Teknik Üniversitesi Enformatik Enstitüsü; 2022-10) Machine learning-based prediction of survival in cancer using multi-omics data Ayşe Nur Çoruh1,2, Tunca Doğan1,2,* 1Biological Data Science Lab, Department of Computer Engineering, Hacettepe University, Ankara, Turkey 2Dep...
Predictingprotein-protein interactions usingGCN-based encoder-decoder combined with a transformer ODTÜ, Deniz Bilimleri Enstitüsü (Orta Doğu Teknik Üniversitesi Enformatik Enstitüsü; 2022-10) Predicting protein-protein interactions using GCN-based encoder-decoder combined with a transformer Proteins are large and complex molecules that play countless roles throughout the biological world. They interact through ...

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