Water Exchange through Canal İstanbul and Bosphorus Strait

Sözer, Adil
Ozsoy, E.
The Turkish Straits System (TSS) regulates the transports of water, material and energy between the Black Sea and the Mediterranean Sea. Amidst existing environmental threats to the region surrounding I.stanbul, the environmental footprint of the proposed Canal I.stanbul project needs to be evaluated through methods of natural science. We take the elementary step to answer the particular problem of coupled strait dynamics by adding the Canal to an existing hydrodynamic model and estimate changes in their common response. Compared to the virtually unmodified exchange flow in the Bosphorus, the flow in the Canal has a weak lower layer current component, contrasted with intense currents at the exit controls at its junction with the Marmara Sea. The upper and lower layer transports through this simplest hypothetical TSS configuration are slightly increased for a given net barotropic flow across the system. The modified regime is expected to have climatological consequences.
Mediterranean Marine Science


Particulate and dissolved primary production along a pronounced hydrographic and trophic gradient (Turkish Straits System-NE Aegean Sea)
Lagaria, A.; Psarra, S.; Gogou, A.; Tuğrul, Selen; Christaki, U. (Elsevier BV, 2013-06-01)
The rates of particulate (PPp) and dissolved primary production (PPd) were estimated along a trajectory of variable environmental regimes formed in a narrow shelf area, following the course of Black Sea water masses (BSW) passing through the Turkish Straits System (TSS) into the NE Aegean Sea (BS-AS outflow). Seven stations in total were sampled, covering a transect from the eastern edge of the Marmara Sea basin to the NE Aegean Sea, during two consecutive cruises performed in October 2008 within the framew...
Spatial and temporal variability in the chemical properties of the oxic and suboxic layers of the Black Sea
Tuğrul, Süleyman; Murray, James W.; Friederich, Gernot E.; Salihoglu, Ilkay (Elsevier BV, 2014-07-01)
The Black Sea, a land-locked deep basin with sulfide bearing waters below 150-200 m, has been subject to anthropogenic pressures since the 1970s. Large inputs of nutrients (nitrate - N, phosphate - P, silicate - Si) with high N/P but low Si/N ratios and subsequent development of intensive eutrophication over the basin have changed vertical distributions and inventories of nutrients and redox-sensitive metals in the oxic, suboxic and anoxic layers. Chemical data sets obtained between 1988 and 2010, and older...
A comparison of the contribution of zooplankton and nekton taxa to the near-surface acoustic structure of three Turkish seas
Mutlu, E (Wiley, 2005-03-01)
The bioacoustics of upper waters of the Black Sea, the Sea of Marmara, and the Mediterranean Sea were studied in October 1999 with an echosounder with 120 and 200 kHz dual-beam transducers. Net tows were taken to ground-truth the acoustic volume backscattering. A forward solution was applied to determine significant scatterers of the three seas with regard to detection limits of the frequencies and background noise measured in each sea. The noise was 4 dB higher in the Sea of Marmara than in the other two s...
Lateral injection of oxygen with the Bosporus plume - fingers of oxidizing potential in the Black Sea
Konovalov, SK; Luther, GW; Friederich, GE; Nuzzio, DB; Tebo, BM; Murray, JW; Oguz, T; Glazer, B; Trouwborst, RE; Clement, B; Murray, KJ; Romanov, AS (Wiley, 2003-11-01)
Saline and warm Mediterranean water flowing through the Bosporus Strait maintains a permanent pycnocline with vertical separation of oxic (O(2)), suboxic (absence of O(2) and H(2)S), and anoxic (H(2)S) zones in the Black Sea. The stable suboxic zone implies restricted vertical mixing of the upper oxic and lower anoxic layers and limited vertical flux of oxygen that cannot balance the upward flux of sulfide. We report data that directly confirm massive lateral injections (>200 km from the Bosporus) of oxygen...
Copepod communities, production and grazing in the Turkish Straits System and the adjacent northern Aegean Sea during spring
Zervoudaki, S.; Christou, E. D.; Assimakopoulou, G.; Orek, H.; Gücü, Ali Cemal; Giannakourou, A.; Pitta, P.; TERBIYIK KURT, TUBA; Yucel, N.; Moutsopoulos, T.; Pagou, K.; Psarra, S.; Ozsoy, E.; Papathanassiou, E. (2011-06-01)
The Mediterranean and the Black Seas are connected through Bosphorus, Marmara Sea and Dardanelles (Turkish Straits System, TSS). In this study, we examined the spatial distribution of copepods and investigate their production and grazing. The aim was to understand the transfer of phytoplankton/microzooplankton production up the food chain in TSS and Aegean Sea during spring. The phytoplankton and microzooplankton biomass and production showed a clear decreasing trend from Bosphorus to the Aegean Sea, wherea...
Citation Formats
A. Sözer and E. Ozsoy, “Water Exchange through Canal İstanbul and Bosphorus Strait,” Mediterranean Marine Science, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51636.