Khademi Nastaran, Riyahi-Bakhtiari Alireza, Sobhanardakani Soheil, Rezaie-Atagholipour Mohsen, Burger Joanna
Department of Environmental Sciences, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran,
Arch Environ Contam Toxicol. 2015 Feb;68(2):274-82. doi: 10.1007/s00244-014-0084-9. Epub 2014 Oct 21.
Levels of arsenic (As), cadmium (Cd), cobalt (Co), lead (Pb), nickel (Ni), selenium (Se), and vanadium (V) were evaluated in coastal sediments, egg contents, and eggshells of crab plover (Dromas ardeola), bridled tern (Sterna anaethetus), lesser crested tern (S. bengalensis), and western reef heron (Egretta gularis) breeding in the northwestern Persian Gulf. Levels of Cd, Pb, Ni, V, and Se were greater in eggs of terns than in eggs of crab plover, perhaps due to the higher trophic level of terns. Levels of all elements were lower than known effects levels for birds. However, levels of Se in eggs were greater than those known to cause toxic effects in birds. Eggs of terns are ideal for monitoring metal contaminants on the breeding grounds because the bioaccumulation ratios (egg/sediment) of some metals (As, Co, Se) in the eggs of terns are significantly greater compared with those of crab plovers.
对在波斯湾西北部繁殖的蟹鸻（Dromas ardeola）、白额燕鸥（Sterna anaethetus）、小凤头燕鸥（S. bengalensis）和西礁鹭（Egretta gularis）的沿海沉积物、蛋内容物及蛋壳中的砷（As）、镉（Cd）、钴（Co）、铅（Pb）、镍（Ni）、硒（Se）和钒（V）水平进行了评估。燕鸥蛋中的镉、铅、镍、钒和硒水平高于蟹鸻蛋，这可能是由于燕鸥处于较高的营养级。所有元素的水平均低于已知的鸟类效应水平。然而，蛋中的硒水平高于已知对鸟类产生毒性作用的水平。燕鸥蛋是监测繁殖地金属污染物的理想对象，因为与蟹鸻相比，燕鸥蛋中某些金属（砷、钴、硒）的生物累积率（蛋/沉积物）显著更高。
