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Öğe A survey of marine algae and seagrasses of İstanbul, (Turkey)(2008) Aysel, V.; Erduğan, H.; Dural, B.; Okudan, E. Ş.Bu çalışmada İstanbul’un (Karadeniz, Marmara denizi, Türkiye) üst infralittoral zonu çalışılmıştır. 244 alg, ve iki Deniz Çayırı tayin edilmiştir. Bunların 11 taksonu Mavi-yeşil bakterilere, 127 taksonu kırmızı alglere, 46 taksonu kahverengi alglere, 60 taksonu yeşil alglere ve iki taksonda deniz çiçekli bitkilerine aittir.Öğe Alien species on the coasts of Turkey(Natl Centre Marine Research, 2005) Cinar, M. E.; Bilecenoglu, M.; Ozturk, B.; Katagan, T.; Aysel, V.The compilation of data on alien species reported from the Turkish coasts yielded a total of 263 species belonging to II systematic groups, of which Mollusca had the highest number of species (85 species), followed by Crustacea (51), fishes (43) and phytobenthos (39). The Black Sea is represented by a total of 20 alien species, the Sea of Marmara by 48 species, the Aegean Sea by 98 species and the Levantine Sea by 202 species. The majority of aliens found in the Black Sea and the Sea of Marmara were transported via shipping, whereas the Levantine coast is extensively subjected to Lessepsian migration. Benthic habitats (soft and hard substrata) comprise 76% of the total alien species and the pelagic environment is inhabited by thirty-nine species. Almost 50% of aliens collected from the Turkish coasts were found only at 0-10 m depth. Eight species occur at depths deeper than 100 m. The impacts of aliens on the benthic and pelagic ecosytems are presented.Öğe An updated review of alien species on the coasts of Turkey(Natl Centre Marine Research, 2011) Cinar, M. E.; Bilecenoglu, M.; Ozturk, B.; Katagan, T.; Yokes, M. B.; Aysel, V.; Dagli, E.This 2010 review of alien species along the coasts of Turkey represents a total of 400 alien species belonging to 14 systematic groups. The present paper also reports the first findings of Vanderhorstia mertensi in the Aegean Sea (Gokova Bay), Chama adspersa in the Sea of Marmara and Mya arenaria in the Aegean Sea. A total of 124 new alien species was determined within the last 5 years. Mollusca had the highest number of species (105 species), followed by Polychaeta (75 species), Crustacea (64 species) and Pisces (58 species). The highest number of alien species (330 species) were encountered on the Levantine coast of Turkey, followed by the Aegean Sea (165 species), Sea of Marmara (69 species) and Black Sea (20 species). The Suez Canal (66% of the total number of alien species) is the main vector for species introductions to the coasts of Turkey, followed by the shipmediated transport (30%). The majority of species (306 species, 76% of total number of species) have become established in the area, while 59 species are classified as casual (15%), 23 species as questionable (6%) and 13 species as cryptogenic (3%). One new alien species was introduced to the coasts of Turkey every 4 weeks between 199:1 and 2010. The majority of aliens were found on soft substratum (198 species) in shallow waters (0-10 m) (319 species). Some species such as Caulerpa racemosa, Amphistegina lobifera, Amphisorus hemprichii, Rhopilema nomadica, Mnemiopsis leidyi, Hydroides spp., Ficopomatus enigmaticus, Charybdis longicollis, Rapana venosa, Asterias rubens, Siganus spp. and Lagocephalus sceleratus show a highly invasive character, and have great impacts both on the prevailing ecosystems and humans.Öğe Fatty acid composition of marine macroalgae from the Black Sea and Dardanelles(2007) Yazici, Z.; Aysel, V.; Öksüz, E.; Köse, A.; Cumali, S.; Güven, K.C.The fatty acid (FA) composition was determined in 14 species of marine macroalgae belonging to the Chlorophyta, Phaeophyta and Rhodophyta, which were collected from Sile in the Black Sea and Kepez in the Dardanelles. Generally, polyunsaturated FAs and monounsaturated FAs were major components (50-77%). Total saturated FAs ranged from 22% to 50%, with 16: 0 as the most abundant saturate (32-38%). Two samples of Cystoseira barbata collected from a different station had some differences from each other in their contents of 18: 2n-6 and 18: 3n-3 and in the 18: 2n-6/20: 4n-6 ratios. Green algal species had a significantly higher proportion of unsaturated FAs and a significantly lower proportion of saturated FAs than the red and brown algae. The amount of n-3 FAs was significantly higher in Ulva rigita, Chaetomorpha linum, Enteromorpha linza and Gracilaria verrucosa (8.88, 6.44, 5.31 and 5.24, respectively). © 2007 Taylor & Francis.Öğe Marine algae and seagrasses of Antalya coastline (Mediterranean, Turkey)(2005) Okudan, E. Ş.; Aysel, V.Bu çalışmada Antalya'nın (Türkiye'nin akdeniz kıyıları) üst infralittoral zonu çalışılmıştır. 375 alg ve beş deniz çayırı tayin edilmiştir. Bunlar Mavi-yeşil bakteriler (36 takson) (Cyanophyceae), kırmızı algler (198 takson) [Rhodellophyceae (1), Compsopogonophyceae (2), Bangıophyceae (5), Florideophyceae (190)], kahverengi algler (74 takson) (Fucophyceae), yeşil algler (67 takson) [Chlorophyceae (4), Ulvophyceae (18), Cladophorophyceae (23), Bryopsidophyceae (20), Dasycladophyceae{2)] ve çiçekli bitkilerdir (5 takson) (Liliopsida). Bunlardan Bonnemaisonia clavata G. Hamel Türkiye denizleri için yeni kayıt olarak verilirken, Leibleinia epiphytica (Hieronymus) Anagnostidis and Komârek, Microchaete grisea Thuret, Calothrix scopulorum (Webervan Bosse and Mohr) C. Agardh, Gelidiocolax christinae J. Feldman et G. Feldman, Falkenbergia hildenbrandii (Bornet) Falkenberg, Hydrolithon farinosum var. chalicodictyum (W.R. Taylor) Serio, Acrodiscus vidovichii (Meneghini) Zanardini, Ceramium codii (Richards) Feldmnn Mazoyer, Chondria mairei Feldmann Mazoyer, Polysiphonia paniculata Montagne ve Ulva curvata (Kützing) De Toni Türkiye Akdeniz Kıyıları çin yeni kayıt olarak verilmişlerdir.Öğe Marine algae and seagrasses of Giresun Shores (Black Sea, Turkey)(2005) Aysel, V.; Erduğan, H.; Tarakçı, B. Dural; Okudan, E. Ş.In this study, marine algae and sea grasses in the upper infralittoral zone of the Black Sea coast of Giresun (Black Sea, Turkey) have been examined. Totally 193 taxa have been determined. 18 of them belong to blue-green bacteria (Cyanobacteria), 109 to red algae (Rhodophyta), 33 to brown algae (Ochrophyta), 30 to green algae (Chlorophyta) and 3 to sea grasses (Magnoliophyta). Erythrotrichia investiens, E. vexillaris, Lophosiphonia scopulorum and Spermothamnion repens var. flagelliferum are new records for Turkish shores of the Black Sea.Öğe Marine algae and seagrasses of Mersin shore (Mediterranean, Turkey)(2006) Aysel, V.; Aslan, Emine Şükran Okudan; Erduğan, H.Bu araştırmada, Mersin (Türkiye’nin akdeniz kıyıları) kıyılarının üst infralittoralinde yayılış gösteren deniz algleri ve deniz çayırları çalışılmıştır. Toplam 396 alg ve 5 deniz çayırı tayin edilmiştir. Bunların 36 tanesi Mavi- yeşil bakteriler (Cyanophyceae), 204 tanesi kırmızı algler [Rhodellophyceae (2), Compsopogonophyceae (2), Bangıophyceae (6), Florideophyceae(194)], 82 tanesi kahverengi algler (Fucophyceae), 74 tanesi yeşil alglere [Chlorophyceae (7), Ulvophyceae (19), Trentepohlıophyceae (1), Cladophorophyceae (25), Bryopsidophyceae (20), Dasycladophyceae (2)] ve 5 tanesi deniz çayırıdır (Liliopsida).Öğe Marine algea and seagrasses of Adana (Mediterranean, Turkey)(2006) Aysel, V.; Erduğan, H.; Okudan, E. Ş.Bu çalışmada, Adana (Türkiye Akdeniz kıyıları) kıyılarının üst infralittoral zonunda bulunan deniz algleri ve deniz çayırları çalışılmıştır. 381 alg ve 5 deniz çayırı (Liliopsida) tayin edilmiştir (toplam 386 takson). Bunların 27 tanesi Mavi- yeşil bakteriler (Cyanophyceae), 204 tanesi kırmızı algler [Rhodellophyceae (2), Compsopogonophyceae (2), Bangiophyceae (5), Florideophyceae(195)], 78 tanesi kahverengi algler (Fucophyceae), 72 tanesi yeşil alglerdir [Chlorophyceae (22), [Chlorophyceae(7),Ulvophyceae(18), Trentepohlıophyceae (1), Cladophorophyceae (22) Bryopsidophyceae (22), Dasycladophyceae (2)]. Bunlardan Ceramium siliquosum (Kützing) Maggs & Hommersend var. zostericola f. zostericola, C. tenuicorne (Kützing) Waern (Rhodophyceae), Bryopsis adriatica (J. Agardh) Meneghini (Bryopsidophyceae) Türkiye Akdeniz Kıyıları çin yeni kayıt olarak verilmişlerdir.Öğe The list of algae and seagrasses of Marmara Sea and Bosphorus between 1968-1994(2006) Aysel, V.; Aydın, A.; Tomruk, A.; Koç, H.; Ayşenur, K.; Nalan, O.; İlker, S.Bu çalışmada 1986-1994 arasında İstanbul Üniversitesi Deniz Bilimleri ve İşletmeciliği Enstitüsü’nde Prof. Dr. Ayten Aydın yönetiminde yapılan lisansüstü çalışmalarına ait yayınlardan çıkarılan liste Prof. Dr. Veysel Aysel tarafından derlenmiş ve bu konuda yapılan literatürler eklenerek tertiplenerek yayına hazırlanmıştır.
