Romero-Calderón Ana G, Morales-Vela Benjamin, Rosíles-Martínez René, Olivera-Gómez León D, Delgado-Estrella Alberto
El Colegio de la Frontera Sur, Av. Centenario Km 5.5, C. P. 77014, Chetumal, Quintana Roo, Mexico.
Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, C. P. 04510, Mexico, D.F., Mexico.
Bull Environ Contam Toxicol. 2016 Jan;96(1):9-14. doi: 10.1007/s00128-015-1674-6. Epub 2015 Oct 30.
Concentrations of seven metals (As, Cd, Cr, Cu, Pb, Ni, and Zn) were analyzed in 33 bone tissue samples of Antillean manatees (Trichechus manatus manatus) found dead in lagoons and rivers of Tabasco and Campeche in the Gulf of Mexico and Chetumal Bay in the Caribbean region. The concentrations of Cr, Cu, Pb, and Zn were significantly different between regions, with greater levels found in the Gulf of Mexico group than in the Mexican Caribbean group (p < 0.05). Pb concentrations differed significantly between adults and calves. No differences were observed between sexes. Metal concentrations detected in the manatee bones were higher than most of those reported for bones in other marine mammals around the world. Future studies are necessary to establish whether the metal concentrations represent a risk to the health of the species.
对在墨西哥湾塔巴斯科州和坎佩切州的泻湖与河流以及加勒比地区切图马尔湾发现死亡的33份安的列斯海牛（Trichechus manatus manatus）骨骼组织样本中的七种金属（砷、镉、铬、铜、铅、镍和锌）浓度进行了分析。铬、铜、铅和锌的浓度在不同区域之间存在显著差异，墨西哥湾组的含量高于墨西哥加勒比组（p < 0.05）。成年海牛和幼崽的铅浓度存在显著差异。未观察到性别之间的差异。海牛骨骼中检测到的金属浓度高于世界上其他海洋哺乳动物骨骼所报告的大多数浓度。有必要开展进一步研究，以确定这些金属浓度是否对该物种的健康构成风险。
