Aşkın Hasan UÇAR, Cemil AYMAK, Serap ERGENE

Carapacial scute variation in green turtle (Chelonia mydas) and loggerhead turtle (Caretta caretta) hatchlings in Alata, Mersin, Turkey

Son yıllarda, Alata kumsalı Türkiye’deki 20 önemli deniz kaplumbağası yuvalama alanlarından biri olarak değerlendirilmektedir. Mersin’deki Alata kumsalında, 2003 üreme sezonunda, 1086 Chelonia mydas, (169 ölü ve 917 canlı) ve 394 Caretta caretta, (74 ölü ve 320 canlı) yavrularının karapas kabuğundaki farklılaşma karapas plak serileri ve plak sıralanması bakımından incelenmiştir. Ch. mydas yavrularında en çok gözlemlenen kabuk serisi 1 nukal, 5 vertebral, 1 çift suprakaudal, 4 çift kostal ve 11 çift marginal şeklindedir. İribaş kaplumbağa için en çok tekrar eden kabuk serisi ise 1 nukal, 5 vertebral, 1 çift suprakaudal, 5 çift kostal ve 12 çift marginal şeklindedir. Minitab 13.0 ikili oran için Z testi kullanılarak, Ch. mydas ve C. caretta ölü ve canlı yavrularının karapas kabuklarındaki farklılaşma, ölü yavruların oranı ile karapas kabuğundaki plak farklılaşması arasında bir ilişki olup olmadığını görmek için incelenmiştir. Ch. mydas ve C. caretta yavrularında varyasyon sayısındaki değişiklikler ve ölüm oranları arasında herhangi bir ilişki bulunamamıştır.

Alata, Mersin – Türkiye’deki yeşil deniz kaplumbağası (Chelonia mydas) ve iribaş kaplumbağa (Caretta caretta) yavrularının karapas kabuğundaki farklılaşmalar

In recent years, Alata beach has been considered to be among 20 important sea turtle nesting areas in Turkey. In the 2003 nesting season, the carapacial scute variation of 1086 Chelonia mydas hatchlings (169 dead and 917 live) and 394 Caretta caretta hatchlings (74 dead and 320 live) from Alata beach in Mersin, Turkey, were examined within carapacial scute series and in carapacial scute pattern. Th e most frequent scute pattern observed for Ch. mydas hatchlings was 1 nuchal, 5 vertebrals, 1 pair of supracaudals, 4 pairs of costals, and 11 pairs of marginals. Th e pattern of 1 nuchal, 5 vertebrals, 1 pair of supracaudals, 5 pairs of costals, and 12 pairs of marginals was the most frequent pattern for loggerhead hatchlings. Using the Minitab 13.0 Z test for 2 proportions, the numbers of variations on the carapacial scutes of dead and live hatchlings of Ch. mydas and C. caretta were examined to see whether there was a relation between the rate of dead hatchlings and the number of variations on the carapacial scute. It was found that there was no relation between the changes in variation numbers and the mortality rates in Ch. mydas and C. caretta hatchlings.

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