Mercury bioaccumulation in the spotted dogfish (Scyliorhinus canicula) from the Atlantic Ocean

被引：33
|
作者：
Coelho, J. P. [1 ]
Santos, H. [1 ]
Reis, A. T. [1 ]
Falcao, J. [2 ]
Rodrigues, E. T. [2 ]
Pereira, M. E. [1 ]
Duarte, A. C. [1 ]
Pardal, M. A. [3 ]
机构：
[1] Univ Aveiro, CESAM, Dept Chem, P-3810193 Aveiro, Portugal
[2] Univ Coimbra, Dept Life Sci, IMAR Inst Marine Res, P-3001401 Coimbra, Portugal
[3] Univ Coimbra, Dept Life Sci, CEF, P-3001401 Coimbra, Portugal
来源：
MARINE POLLUTION BULLETIN | 2010年 / 60卷 / 08期
关键词：
Mercury; Scyliorhinus canicula; Metal body distribution; Gender differentiation; Lifespan bioaccumulation pattern; ATOMIC-ABSORPTION-SPECTROMETRY; MUSCLE-TISSUE; METHYLMERCURY; ACCUMULATION; SPECIATION; SELENIUM; DEPURATION; SEAWATER; EXPOSURE; FISH;
D O I：
10.1016/j.marpolbul.2010.05.008
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The annual and life-cycle mercury bioaccumulation pattern in selected tissues of the economically relevant Elasmobranchii species Scyliorhinus canicula was studied, and the risks associated with its consumption evaluated. Preferential mercury bioaccumulation occurred in muscle tissue, and followed the order muscle > heart > liver > gills > pancreas. Total mercury in muscle tissue ranged from 0.13 mg kg(-1) (wwt) in 1+ year old males to 0.8 mg kg(-1) (wwt) in 8+ year old mature females, with no significant differences found between genders, and no clear lifespan bioaccumulation pattern observed, except for mature females. Organic mercury in the muscle ranged from 0.05 mg kg(-1) (wwt) to 0.52 mg kg(-1) (wwt), corresponding to an average of 70% of total mercury content. In mature females, a significant correlation (R = 0.99, P = 0.01) was found between size and organic mercury fraction, suggesting reproduction as an important factor controlling organic mercury bioaccumulation in the spotted dogfish. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1372 / 1375
页数：4
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