Área de Toxicología, Facultad de Veterinaria, Universidad de Murcia, Campus Espinardo, E-30071 Murcia, Spain.
Laboratorio de Investigación en Reproducción Animal (LIRA), Universidad Autónoma Benito Juárez, Oaxaca, Mexico.
Mar Pollut Bull. 2014 Dec 15;89(1-2):367-375. doi: 10.1016/j.marpolbul.2014.09.035. Epub 2014 Oct 6.
Concentrations of eight metals and metalloids (Pb, Cd, Cu, Zn, Mn, Se, Ni and As) were evaluated from 41 nesting females (blood) and 13 dead (tissues) Olive Ridley turtles (Lepidochelys olivacea), a species classified as vulnerable and also listed in Appendix I of the Convention of International Trade in Endangered Species (CITES). The mean blood, liver and kidney lead concentration were 0.02 ± 0.01, 0.11 ± 0.08 and 0.06 ± 0.03 μ gg(-1) ww respectively, values lower than other turtle species and locations, which it could be due to the gradual disuse of leaded gasoline in Mexico and Central America since the 1990s. Mean concentration of cadmium was 0.17 ± 0.08 (blood), 82.88 ± 36.65 (liver) and 150.88 ± 110.9 9μg g(-1) (kidney). To our knowledge, the mean renal cadmium levels found is the highest ever reported worldwide for any sea turtle species, while other six elements showed a concentration similar to other studies in sea turtles.
评估了 41 只筑巢雌龟(血液)和 13 只死亡龟(组织)体内的 8 种金属和类金属(铅、镉、铜、锌、锰、硒、镍和砷)浓度,这些龟均属于易危物种榄蠵龟(Lepidochelys olivacea),并被列入《濒危野生动植物种国际贸易公约》(CITES)附录 I。血液、肝脏和肾脏中铅的平均浓度分别为 0.02 ± 0.01、0.11 ± 0.08 和 0.06 ± 0.03 μ gg(-1) ww,这些浓度低于其他龟种和其他地区的浓度,这可能是由于自 20 世纪 90 年代以来,墨西哥和中美洲逐渐停止使用含铅汽油。镉的平均浓度为 0.17 ± 0.08(血液)、82.88 ± 36.65(肝脏)和 150.88 ± 110.99μg g(-1)(肾脏)。据我们所知,所发现的肾脏镉水平是全世界所有海龟物种中最高的,而其他六种元素的浓度与海龟的其他研究相似。