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    Öğe
    A two-headed green sea turtle (Chelonia mydas) hatchling on samandağ beach, Turkey
    (Folium Ltd, 2017) Sönmez, Bektaş; Sert, Mehmet; Kayikçi, Senem; Bedirci, Özay; Özdilek, Şükran Yalçin
    A two headed green sea turtle (Chelonia mydas) was found on Samanda? Beach, Turkey in 2015 nesting season. The two heads were anatomically similar with independent reaction to external stimuli. The carapace scutes showed anomalies. Radiography was performed and the spinal column was seen to bifurcate in the area close to the caudal region. In the post mortem examination, esophagus, stomach, liver, lung, heart and trachea were duplicated. The two headed green turtle was subclassified as teratodidymus. Dicephalism rarely occurs in sea turtle and perhaps genetic factors may play a significant role for this two headed green sea turtle. © 2017 Folium Publishing Company.
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    Öğe
    Evaluation of isotopic signature of mucilage in the benthic food web in the Çanakkale Strait
    (Universitatea din Oradea, 2022) Gürkan, Selin Ertürk; Acar, Seçil; Gürkan, Mert; Özdilek, Şükran Yalçin
    The mucilage formation, which emerged in the Marmara Sea in November 2020, was soon seen in the Çanakkale Strait and became effective in different locations of the strait in a short time. In this study, the place of mucilage in the food web as a food source and the percentage of mucilage in the food web of warty crab (Eriphia verrucosa), which is a benthic species, was determined by the stable isotope method. For this purpose, E. verrucosa was sampled from a mucilage-affected area of the Çanakkale Strait in July 2021. In addition, sediment samples were collected to sort out macrophyte samples and macroinvertebrate samples, which could be possible food sources of the species. Finally, the pelagic and benthic mucilage samples were also taken and brought to the laboratory in the cold chain. The stable isotope analyses of all samples were made and evaluated. The results showed that mucilage from both layers joined the food web and that benthic mucilage, in particular, contributed to the diet of a benthic species, E. verrucosa. The possible contribution of mucilage, which has been determined to be included in the diet of benthic organisms with its high bacterial density, is also a concern for the diet of fish species that are consumed more frequently by humans. © 2022 Universitatea din Oradea. All rights reserved.