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Changes in the abundance and distribution of marine benthic hydrozoan species are indicative of variations in environmental conditions in the marine realm. The comparative analysis of such assemblages can improve our understanding of environmental and ecological conditions in the Sea of Marmara, a strongly stratified and heavily populated inland sea connecting the Aegean and Black seas, on route of national and international maritime traffic. We compared the hydrozoan assemblages occurring in harbours with those developed at natural sites, as well as the assemblages associated with the Black Sea water mass versus the Mediterranean water mass in the vicinities of the Prince Islands, the north-easternmost section of the Sea of Marmara. Sampling took place at 12 stations, once in March 2015 and once in August 2015 in order to cover species with both warm and cold water affinities. Multivariate analyses showed that benthic hydroid assemblages with both affinities differed significantly between the heavily trafficked harbours of the Prince Islands (connected to the metropolis of Istanbul) and areas without human settlements and maritime traffic. In addition, highly distinct hydroid assemblages were found characterizing both areas with water of Mediterranean origin and areas with water from Black Sea origin. Based on our results, we discuss the potential for the use of these organisms as indicators of water masses and anthropogenic impact at the regional level.

Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2007, Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2007, Bu çalışmada, öncelikle Burgazada’nın tarihi, fiziksel ve sosyal gelişimi incelenmiştir. Çalışma alanını oluşturan Burgazada Kentsel ve Doğal Sit Alanı’nın değişimini, geçmiş ve günümüzdeki durumunu belirlemeye yönelik çalışmalar yapılmıştır. Bu amaçla fiziksel ve doğal çevre analiz ve tespitlerle incelenmiş, Adalar’ın sit alanları bütünü olarak tescil edilmesiyle birlikte alınan koruma kararları ve imar planı hazırlama süreci, kurul kararları, plan ve plan raporları doğrultusunda irdelenmiş, geçmişten günümüze değişim arşiv çalışmaları, eski harita, fotoğraf ve planlarla kentsel doku ve tek yapı ölçeğinde belgelenmiş, sonrasında yapılan araştırmaların değerlendirmesi yapılarak tarihi dokuyu koruyacak kentsel ve tek yapı ölçeğinde önlemler yasal sürece ilişkin önerilerle birlikte plan ve rapor düzleminde oluşturulmuştur., In this study, primarily historic, physical and social development of Burgazada is examined. Studies are made to determine the transformation, past and present situation of Cultural and Natural Site in Burgazada. For this purpose physical and natural environment is evaluated through analysis. After the registration of Prince Islands as cultural site, conservation desicions and conservation plan preparing process is examined according to the former desicions made, plans and plan reports. The transfromation from past to present is determined on building and area scope through archive studies documenting old map, photograph and plans. After an evaluation of the studies made, proposals are brought through plan and report base by building and area scope with the suggestions to the legal process., Yüksek Lisans, M.Sc.