Specific accumulation of mercury and selenium in seabirds

被引:66
作者
Kim, EY
Saeki, K
Tanabe, S
Tanaka, H
Tatsukawa, R
机构
[1] EHIME UNIV, DEPT ENVIRONM CONSERVAT, MATSUYAMA, EHIME 790, JAPAN
[2] NAT RES INST FAR SEAS FISHERIES, SHIMIZU, SHIZUOKA 424, JAPAN
关键词
D O I
10.1016/S0269-7491(96)00110-8
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Total mercury (T-Hg), methyl mercury (MeHg) and selenium (Se) concentrations were determined to elucidate the relationship between Hg and Se levels in the liver of 10 seabird species. Highest concentrations of T-Hg (mean 267 mu g/g dry wt), MeHg (mean 25.5 mu g/g dry wt) and Se (mean 113 mu g/g dry wt) were in the liver of black-footed albatross (Diomedea nigripes). An equivalent molar ratio of 1:1 between T-Hg and Se was found in the liver of individuals which contain over 100 mu g Hg/g. However, such a relationship was unclear in other individuals which had relatively low Hg levels. This suggests that Se plays a sole in Hg detoxification for those individuals with high Hg. In seabird tissues, Hg and Se levels should be a most important factor determining the relationship between Hg and Se, and fluctuation of Hg burden through molting and the species-specific demethylation capacity would also influence their relationships. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:261 / 265
页数:5
相关论文
共 27 条
[21]  
OKAMOTO K, 1994, PLASMA SOURCE MASS S, P128
[22]   SPECIATION OF MERCURY IN DOLPHIN LIVER - A 2-STAGE MECHANISM FOR THE DEMETHYLATION ACCUMULATION PROCESS AND ROLE OF SELENIUM [J].
PALMISANO, F ;
CARDELLICCHIO, N ;
ZAMBONIN, PG .
MARINE ENVIRONMENTAL RESEARCH, 1995, 40 (02) :109-121
[23]   THE CHRONIC TOXICITY OF ALUMINUM, CADMIUM, MERCURY, AND LEAD IN BIRDS - A REVIEW [J].
SCHEUHAMMER, AM .
ENVIRONMENTAL POLLUTION, 1987, 46 (04) :263-295
[24]  
SMITH TG, 1978, ARCTIC, V31, P75
[25]   THE CHEMICAL FORM OF MERCURY STORED IN SOUTH-ATLANTIC SEABIRDS [J].
THOMPSON, DR ;
FURNESS, RW .
ENVIRONMENTAL POLLUTION, 1989, 60 (3-4) :305-317
[26]   COMPARISON OF THE LEVELS OF TOTAL AND ORGANIC MERCURY IN SEABIRD FEATHERS [J].
THOMPSON, DR ;
FURNESS, RW .
MARINE POLLUTION BULLETIN, 1989, 20 (11) :577-579
[27]  
UTHE JF, 1972, J ASSOC OFF ANA CHEM, V55, P583