Trace metals in tissues of gray whale (Eschrichtius robustus) carcasses from the Northern Pacific Mexican Coast

被引：28
|
作者：
Méndez, L [1 ]
Alvarez-Castañeda, ST [1 ]
Acosta, B [1 ]
Sierra-Beltrán, AP [1 ]
机构：
[1] Ctr Invest Biol Noroeste, La Paz, Baja Calif Sur, Mexico
来源：
MARINE POLLUTION BULLETIN | 2002年 / 44卷 / 03期
关键词：
gray whale; Eschrichtius robustus; heavy metals; Gulf of California; whale carcasses; pollution;
D O I：
10.1016/S0025-326X(01)00235-1
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Samples of liver, lung, heart, muscle, and blubber tissue from the carcasses of juvenile gray whales (Eschrichtius robustus) found stranded on the coast off the Sea of Cortez, Mexico were analyzed for a range of trace metals (Cu, Fe, Zn, Mn, Ni. Pb, and Cd). The highest concentrations of copper, iron, zinc, and manganese were found in liver; nickel and lead in heart. and cadmium in kidney. In all tissues analyzed, iron, zinc and copper were present in the highest concentrations; however, some whales also showed high levels of cadmium in the kidney which could be related to their diet. Elevated concentrations of copper were found only in the liver of one whale. In general, where low levels of iron were found in the liver, they were associated with poor nutrition. Lead, nickel, manganese and zinc levels in liver were within the normal range, indicating that these whales had not been exposed to high levels of these metals. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：217 / 221
页数：5
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