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Eutrophication of the Izmit Bay, Marmara Sea

Enis Morkoq ; Department of Environmental Engineering, TUBITAK-Marmara Research Center, P.O.B. 21, 41470 GebzeKocaeli, Turkey
Suleyman Tugrul ; Marine Science Institute, Middle East Technical University, P.O.B. 28, Erdemlilqel, Turkey
Oya S. Okay ; Department of Environmental Engineering, TUBITAK-Marmara Research Center, P.O.B. 21, 41470 GebzeKocaeli, Turkey
Tarzan Legović ; Rudjer Boskovic Institute, Center for Marine Research, P.O.B. 1016, 10001 Zagreb, Croatia

Puni tekst: engleski, pdf (17 MB) str. 347-359 preuzimanja: 200* citiraj
APA 6th Edition
Morkoq, E., Tugrul, S., Okay, O.S. i Legović, T. (1997). Eutrophication of the Izmit Bay, Marmara Sea. Croatica Chemica Acta, 70 (1), 347-359. Preuzeto s https://hrcak.srce.hr/135628
MLA 8th Edition
Morkoq, Enis, et al. "Eutrophication of the Izmit Bay, Marmara Sea." Croatica Chemica Acta, vol. 70, br. 1, 1997, str. 347-359. https://hrcak.srce.hr/135628. Citirano 21.01.2020.
Chicago 17th Edition
Morkoq, Enis, Suleyman Tugrul, Oya S. Okay i Tarzan Legović. "Eutrophication of the Izmit Bay, Marmara Sea." Croatica Chemica Acta 70, br. 1 (1997): 347-359. https://hrcak.srce.hr/135628
Harvard
Morkoq, E., et al. (1997). 'Eutrophication of the Izmit Bay, Marmara Sea', Croatica Chemica Acta, 70(1), str. 347-359. Preuzeto s: https://hrcak.srce.hr/135628 (Datum pristupa: 21.01.2020.)
Vancouver
Morkoq E, Tugrul S, Okay OS, Legović T. Eutrophication of the Izmit Bay, Marmara Sea. Croatica Chemica Acta [Internet]. 1997 [pristupljeno 21.01.2020.];70(1):347-359. Dostupno na: https://hrcak.srce.hr/135628
IEEE
E. Morkoq, S. Tugrul, O.S. Okay i T. Legović, "Eutrophication of the Izmit Bay, Marmara Sea", Croatica Chemica Acta, vol.70, br. 1, str. 347-359, 1997. [Online]. Dostupno na: https://hrcak.srce.hr/135628. [Citirano: 21.01.2020.]

Sažetak
The elongated Bay of Izmit is one of the most heavily polluted semienclosed basins in Turkey. From systematic data obtained during field studies between 1984 and 1988, it is clear that two distinct water masses are present throughout the year. The brackish water which originated in the Black Sea forms a 10 to 15 m thick surface layer. Its salinity and temperature vary from 22-24 ppt and 20-24 °C in summer, to 26 ppt and 7 °C, in winter. Marine water, which arrived from the Mediterranean, underlies the permanent pycnocline and has much more stable properties: salinity and temperature ranges are 37.5-38.5 ppt and 14-15 °C, respectively.
Since the phytoplankton production is limited to the upper layer, including the halocline, nutrients have low surface concentrations in productive seasons and a higher concentration in winter. There is a sharp concentration increase in the halocline to high, almost constant, value in the lower layer. Phytoplankton biomass, in terms of chlorophyll-a concentration, has been found to be as large as 33 pg/L during spring in the more eutrophic inner part of the bay. In March 1988, the production reached the peak value of 3.3 g C/(m2 day) with the mean annual rate of at least 2 to 4 times larger than in the Marmara and Black Seas. Dissolved oxygen concentration decreases in the halocline and varies seasonally

Hrčak ID: 135628

URI
https://hrcak.srce.hr/135628

Posjeta: 305 *