Graduate School of Marine Sciences

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Kıdeyş, Ahmet Erkan (165)
Salihoğlu, Barış (107)
Gücü, Ali Cemal (105)
Tuğrul, Süleyman (93)
Özkan, Korhan (93)

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Black Sea (92)
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Recent Submissions

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...
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...
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...
Chapter 6: The Breadth and Limits of Life on Earth
Thweatt, Jennifer L.; Harman, C.E.; Araújo, M.N.; Marlow, Jeffrey J.; Oliver, Gina C.; Sabuda, Mary C.; SEVGEN, SERHAT; Wilpiszeki, Regina L. (2024-03-01)
Scientific ideas about the potential existence of life elsewhere in the universe are predominantly informed by knowledge about life on Earth. Over the past ∼4 billion years, life on Earth has evolved into millions of uniqu...
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 FUTURE IMPACTS OF CLIMATE CHANGE ON FISH STOCKS IN THE BLACK SEA: AN END-TO-END MODEL APPROACH
Uysaler, Hacer Buse; Akoğlu, Ekin; Department of Marine Biology and Fisheries (2024-1-23)
The warming of the Black Sea significantly affects the marine ecosystem, fish populations, and livelihoods. Comprehensive models that make assessments about the past, present, and predictions concerning future changes of m...
Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC
Aad, G.; et. al. (2024-01-12)
The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by t...
Coastal discharge extremes and their environmental impact on the Sea of Marmara
Başdurak, Nüvit Berkay (2024-01-01)
Increases in evaporation driven by global warming change the hydrological cycle by fueling extreme precipitation and exacerbating the frequency and intensity of extreme floods. Combined with the increase in terrestrial was...
Evaluating Sea Level Rise Impacts on the Southeastern Türkiye Coastline: a Coastal Vulnerability Perspective
Aykut, Fahri; Tezcan, Devrim (2024-01-01)
Coastal areas are inherently sensitive and dynamic, susceptible to natural forces like waves, winds, currents, and tides. Human activities further accelerate coastal changes, while climate change and global sea level rise ...
Development and testing of a prototype indicator-based tool for identification of potential problem areas for marine litter in Europe's seas
Murray, Ciarán J.; van Bavel, Bert; Kıdeyş, Ahmet Erkan; Lusher, Amy L.; Reker, Johnny; Šubelj, Gašper; Andersen, Jesper H. (2023-12-20)
We demonstrate a prototype multi-metric indicator-based assessment tool (i.e. Marine Litter Assessment Tool - MALT) for mapping and identification of ‘problem areas’ and ‘non-problem areas’ regarding the occurrence of mari...
Phytoplankton and pigment composition during an Emiliania huxleyi bloom in the Black Sea
Eker-Develi, Elif; Konucu, Merve; Psarra, Stella; Slabakova, Natalia; Triantaphyllou, Maria; Dimiza, Margarita; Karageorgis, Aristomenis P.; Uysal, Zahit; Berthon, Jean-François (2023-12-10)
Alterations in composition and carbon biomass of phytoplankton community are closely related to seasonal variations, anthropogenic inputs and ultimately climatic changes in a longer perspective. Accuracy of the collected d...
A local eddy viscosity parameterization for wind-driven estuarine exchange flow, Part II: Entrainment
Başdurak, Nüvit Berkay; Burchard, Hans; Schuttelaars, Henk M. (2023-12-01)
Structure and intensity of estuarine exchange flow depend significantly on the eddy viscosity Av profile which is dynamically linked to various forces (e.g., gravitational, tidal, wind-driven). The impact of winds on the e...
Shifts in the pelagic fishery dynamics in response to regional sea warming and fishing in the Northeastern Mediterranean
Demirel, Nazlı; Akoğlu, Ekin; Yıldız, Taner (2023-12-01)
Understanding the dynamics of pelagic fish fluctuations is crucial to ecosystem well-being and sustainable fishery. Here, inter- and intra-annual landing dynamics of small and medium pelagic fish were delineated between 20...
Appraising the characteristics of particulate matter from leather tanning micro-environments, their respirational risks, and dysfunctions amid exposed working cohorts
Sarwar, Fiza; Alam, Khan; Öztürk, Fatma; Koçak, Mustafa; Malik, Riffat Naseem (2023-12-01)
Leather tanneries are known for chemical laden work environments and pulmonic complaints among workers. This study presents an analysis of tannery micro-environments emphasizing on size-based variation in composition of pa...
Water chemistry and pigment composition of 13 lakes and ponds in Maritime Antarctica
Özkan, Korhan (2023-11-01)
The Antarctic Peninsula has been rapidly warming, resulting in changes to the abundance and surface cover of terrestrial aquatic ecosystems, as well as their ecosystem structure and function. Therefore, comparative studies...
The Latest Estimation of the State of the Black Sea Turbot Stock
Akkuş, Gizem (2023-10-25)
Microplastic distribution in the surface water and sediment of the Ergene River
Akdogan, Zeynep; Guven, Basak; Kıdeyş, Ahmet Erkan (2023-10-01)
Rivers are major transport pathways for microplastics to reach the oceans. Although gained much attention over the last few years, there is still a relatively lack of knowledge on microplastics in rivers. This study aims t...
Seven ascidian (Tunicata) species from the North Eastern Mediterranean
Karahan, Arzu (2023-10-01)
Members of the tunicates, a subphylum of marine filter-feeder chordates, inhabit all marine and oceanic habitats from the subtidal to the abyssal. Considered the closest relatives to the vertebrates, the tunicates are wide...
First maturity size of the Black Sea anchovy and its implications on the age-based stock assessment models
Akkuş, Gizem; Gücü, Ali Cemal (2023-10-01)
This study aims to estimate the Black Sea anchovy's first maturity length and its relationship with the ambient temperature to investigate possible consequences of global warming on the stock. The study also evaluated how ...
The Effects of The Environment on The Black Sea Anchovy - Signals on The Growth
Akkuş, Gizem; Gücü, Ali Cemal; Department of Marine Biology and Fisheries (2023-9-08)
The Black Sea anchovy, Engraulis encrasicolus (Linnaeus, 1758), is a fast-growing, short-lived small pelagic fish species. This fish stands out economically as it alone accounts for more than 60% of the total landings in t...
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