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    Öğe
    Change in Physical and Chemical Composition of Green Turtle (Chelonia mydas) Eggshells During Embryonic Development
    (Chelonian Research Foundation, 2011) Yalcin-Ozdilek, Sukran; Ozdilek, H. Goksel; Sangun, M. Kemal
    The chemical elements of green turtle (Chelonia mydas) eggshells collected from Samandag Beach (Turkey) were studied to determine differences between elemental composition and changes in physical characteristics. Eggshells from various developmental stages (n = 67), from successfully hatched eggs (n = 25) and infertile eggs (n = 18) were examined using inductively coupled plasma-atomic emission spectroscopy to determine elemental changes during embryonic development. Through the course of egg development, we found changes in concentration of calcium, copper, potassium, sodium, strontium, and zinc but no changes in magnesium.
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    Öğe
    Is Sea Turtles Emergence Only for Preparing Nest or Only for Clutching?
    (Kafkas Univ, Veteriner Fakultesi Dergisi, 2011) Ergun, Yasar; ulku, Alev; Yalcin-Ozdilek, Sukran
    [Abstract Not Available]
  • Küçük Resim
    Öğe
    Some properties of new nesting areas of sea turtles in north-eastern Mediterranean situated on the extension of the Samanda Beach, Turkey
    (Triveni Enterprises, 2006) Yalcin-Ozdilek, Sukran; Sonmez, Bektas
    One of the most endangered species in tropical seas, Chelonia mydas (green turtles) prefer undisturbed sand beaches to lay their eggs. While Caretta caretta lays their eggs all over the Mediterranean beaches of Turkey, C. mydas nesting locations are limited with north-eastern site (Alata, Kazanh, Akyatan and Samandag) of the country and some beaches in Cyprus. UnN 2003, no nesting place of both species between Akyatan and Samandag was recorded. From north to south, the beaches examined in 2003 summer are Arsuz, Konaclk, Kale, Tr-H-3, Tr-H-2, and Tr-H-1 in addition to well-known and studied nesting beaches of sea turtle species in Hatay Province: Cevlik, Seyhhizir and Meydan. Since the Hatay Provincial Coast between Cevlik and Arsuz is hilly and no stabilized road is available, these small beaches were not known to have both C. mydas and C. caretta nests. Some physical and chemical sand properties, the number of nests belong to both species and selected nest specifications were investigated in this study. Kale Beach was found to be the most important nesting place in this less populated area. Based on results, Kale, Tr-H-3 and Tr-H-1 beaches were recorded to have high hatchling success.
  • [ N/A ]
    Öğe
    Strandings of juvenile green turtles at Samandag, Turkey
    (Allen Press Inc, 2006) Yalcin-Ozdilek, Sukran; Aureggi, Monica
    Strandings of juvenile green turtles, Chelonia mydas, at Samandag beach, southeastern Turkey near Syria, suggest the area may represent a juvenile developmental habitat for the species.