Origin identification of oil spillage in marine pollution from ships by GC/MS and FTIR analyses
Kasim C. Güven, Erdoğan Okuş, Ertuğrul Doğan, Selma Ünlü, Tuncay Gezgin, Selmin Burak
University of Istanbul, Institute of Marine Sciences and Management, Vefa, 34470, Istanbul, TURKEY
Abstract
Samples were collected from an oil slick in Tuzla Bay released from two ships. The origin of the oil was identified by GC/MS and FTIR analyses. The aliphatic and aromatic group compounds were detected by GC/MS analysis. Similar FTIR spectra were obtained from the sea water and bilge water of ships. Both analysis methods support each other and they can be used for oil spillage identification. In addition to the Pr/Ph ratio, nor- Pr/Ph and nor – Pr/Ph ratios were used for the first time in the identification of oil spillage.
Keywords: Oil spillage, GC/MS, FTIR analyses
Coastline changes and inadequate management between Kilyos and Karaburun shoreline
Cem Gazioglu, Zeki Yasar Yücel, Selmin Burak, Erdogan Okus, Bedri Alpar
University of Istanbul, Institute of Marine Sciences and Management, Vefa, 34470, Istanbul, TURKEY
Abstract
The shoreline between Karaburun and Kilyos is tairly flat and mostly lined by beaches. The fact that sea water is shallow and the Belgrade Forest situated just behind the shoreline increases the touristic value of the area. However, coal, sand and clay are being produced at various quarries just behind the shoreline. As a result of open-surface excavations and mining, the accumulation of removed material has caused deterioration of the natural shoreline. During recent years depletion of coal reserves on land has caused mining activities to shift towards the shoreline. In this study based on the changes of the shoreline, the amount of area filled up with excavated material has been calculated by using remote sensing methods.
Keywords: Coastal management, coastal usage, remote sensing, mining, Istanbul
Studies on the uptake of copper, zinc and cadmium by the amphipod Corophium voiutator (Pallas) in the laboratory
Levent Bat
University of Ondokuz Mayıs, Sinop Fisheries Faculty, 57000 Sinop, TURKEY
Abstract
In this study, accumulation of copper, zinc and cadmium at varying concentrations from sea water and sediment under the laboratory conditions was assessed by bioaccumulation tests, using the marine crustacean Corophium volutator (Pallas). Concentrations of these metals in the whole tissues of C. volutator were determined at intervals of 3, 6, 24, 48, 72 and 96 h. There is positive correlation between metal levels in C. volutator and metal levels in sea water and sediment. The results also show that the accumulation of copper, zinc and cadmium in C. volutator from the sea water is higher than those from sediment.
Keywords: Corophium volutator, heavy metal, sediment, bioaccumulation
Effect of weather system on the regime of sea level variations in Izmir Bay
Bedri Alpar, Selmin Burak, Cem Gazioğlu
Istanbul University, Marine Sciences and Management Institute, Vefa, 34470 Istanbul, TURKEY
Abstract
On the basis of the daily and monthly mean data for the year 1990 at Menteş in lzmir Bay, the effects of both barometric pressure and wind on the fluctuations of sea level have been studied. Barometric pressure is one of the main parameters affecting sea level variations in Izmir Bay. The sea level has a significant inverse coherence with the barometric pressure for the frequency band lower than two-day periodicity. The wind is also a significant factor affecting sea level. At Menteş, increases in sea level are caused by westerly winds, while decreases in sea level are mainly caused by southerly and southeasterly winds, especially for higher wind speeds.
Keywords: Izmir Bay, Aegean Sea, sea level, air-sea interaction, atmospheric forcing
Tolerance of a Cyanobacterium Phormidium fragile, to strontium in presence or absence of other heavy metals
Zeinab Khalil
Botany Department, Faculty of Science, Cairo University, EGYPT
Abstract
This study was conducted to elucidate the effects of different concentrations of strontium and its interaction with certain metals upon some physiological aspects of Phormidium fragile. The results revealed that dry weight, protein and carbohydrate contents as well as acid phosphatase activity decreased with increased strontium concentration. Low doses of strontium hardly affected lipids or DNA content as well as nitrate reductase and GOT activities. In the meantime, it increased GPT and alkaline phosphatase activities. Low concentrations of strontium decreased RNA content, but larger doses hardly affected its accumulation. Calcium nullified the harmful effects of strontium on dry weight, protein, carbohydrates and RNA contents but could not counteract strontium effects on the other parameters. Antimony hardly affected the influence of strontium on dry weight gain and DNA content, slightly decreased the carbohydrate content and alkaline phosphatase activity but slightly increased the protein content. Antimony nullified strontium effects on RNA or lipids levels, nitrate reductase, GOT, GPT and acid phosphatase activities. The addition of cadmium, singly or jointly with calcium and antimony to strontium-containing media as deleterious to all growth criteria. Pigment contents were severely attenuated by strontium alone or combined with other metals.
Keywords: Phromidium fragile, strontium, heavy metals
The design of a single channel high-resolution digital seismic system and some geological results
Bedri Alpar, M. Ali Danışman, Erkan Gökaşan, Ertuğrul Doğan, Valery Gainanov, Alex Zverev
University of Istanbul, Institute of Marine Sciences and Management, Vefa, 34470 Istanbul, TURKEY
Dokuz Eylül University, Division of Geophysical Engineering, Bornova, 35100 lzmir, TURKEY
Geont Marine Research Centre and Moscow State University, Moscow, Russia, 4 Impedance Co. Ltd, Moscow, RUSSIA
Abstract
A single-channel high-resolution digital reflection seismic system has been developed. Some technical specifications are given for its hardware and software. The seismic sections obtained from the first trial runs were compared with neighbouring analog sections which were recorded in the area previously. Similar results were found with previous findings. However, the overall performance and better resolution of the new digital system enabled us to distinguish two new geological features. First, thin Holocene post-transgressional sediments were much more evident compared to the previous records. Secondly, the chaotic reflection patterns in the Oligocene units were not caused by slumps but by gas-bearing sediments; meaning that the gas charged sediments of the northern shelf area of the Black Sea continued on the southern shelf area.
Keywords: Seismic system, high-resolution, digital seismic data acquisition, Black Sea, seismic hardware, seismic data processing
The design of a single channel high-resolution digital seismic system and some geological results
Bedri Alpar, M. Ali Danışman, Erkan Gökaşan, Ertuğrul Doğan, Valery Gainanov, Alex Zverev
Tolerance of a Cyanobacterium Phormidium fragile, to strontium in presence or absence of other heavy metals
Zeinab Khalil
Effect of weather system on the regime of sea level variations in Izmir Bay
Bedri Alpar, Selmin Burak, Cem Gazioğlu
Studies on the uptake of copper, zinc and cadmium by the amphipod Corophium voiutator (Pallas) in the laboratory
Levent Bat
Coastline changes and inadequate management between Kilyos and Karaburun shoreline
Cem Gazioglu, Zeki Yasar Yücel, Selmin Burak, Erdogan Okus, Bedri Alpar
Origin identification of oil spillage in marine pollution from ships by GC/MS and FTIR analyses
Kasim C. Güven, Erdogan Okus, Ertugrul Dogan, Selma Ünlü, Tuncay Gezgin, Selmin Burak
