کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2843529 1166102 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel incubator to simulate the natural thermal environment of sea turtle eggs
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
A novel incubator to simulate the natural thermal environment of sea turtle eggs
چکیده انگلیسی

A novel sea turtle egg incubator was developed in which the heating element is placed above the clutch, which more closely simulates solar heating in nature. An electronic thermometer in conjunction with a thermostat located in sand beneath a heater plate was used to obtain the desired temperature in the placed eggs, as compared to previous methods of controlling global temperature within the interior of a chamber. To test the new incubator, Lepidochelys olivacea eggs were incubated under different thermal conditions in order to identify the temperature-dependent sex determination (TSD) period more precisely. Four incubation experiments were designed to test the performance of the incubator where the temperature was lowered from 32 to 28 °C during 60 h and then reestablished at 32 °C until hatching occurred. A significant mean hatching success rate of 89.6% was obtained for all the experiments. The main result from these preliminary findings was that the sex determination period to produce males was reduced from 15 (days 15–30) to eight days (days 19–27). Overall, the incubator provides precise control and simulates a natural thermal environment that may improve control of TSD in sea turtles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Thermal Biology - Volume 35, Issue 3, April 2010, Pages 138–142
نویسندگان
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