Suzuki Kazuyuki, Noda Jun, Yanagisawa Makio, Kawazu Isao, Sera Kouichiro, Fukui Daisuke, Asakawa Mitsuhiko, Yokota Hiroshi
School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimati, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan.
J Vet Med Sci. 2012 Dec;74(12):1677-80. doi: 10.1292/jvms.12-0099. Epub 2012 Aug 6.
The aim of this study was to evaluate the relationships between carapace parameters as indicators of age and plasma elements in 25 captive hawksbill sea turtles. Particle-induced X-ray emission allowed detection of 23 trace and major elements. There were significant but weak correlations between the virtual carapace surface area and plasma bromide (r = -0.552, P<0.01), phosphorus (r = 0.547, P<0.01), lead (r =-0.434, P<0.05) and strontium (r = 0.599, P<0.01), while there were no significant correlations with other elements. These results suggest that major and trace plasma elements in captive sea turtles show almost no variation with carapace parameters, suggesting that the increase in plasma elements seen in wild sea turtles might be the result of marine pollution.
本研究的目的是评估25只圈养玳瑁海龟中作为年龄指标的背甲参数与血浆元素之间的关系。粒子诱导X射线发射可检测23种微量元素和常量元素。虚拟背甲表面积与血浆溴（r = -0.552，P<0.01）、磷（r = 0.547，P<0.01）、铅（r = -0.434，P<0.05）和锶（r = 0.599，P<0.01）之间存在显著但较弱的相关性，而与其他元素无显著相关性。这些结果表明，圈养海龟的血浆常量和微量元素几乎不会随背甲参数而变化，这表明在野生海龟中观察到的血浆元素增加可能是海洋污染的结果。
