Relationship between total mercury concentration and fish size in two pelagic fish species: implications for consumer health.
Relationship between total mercury concentration and fish size in two pelagic fish species: implications for consumer health.
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两种远洋鱼类的总汞浓度与鱼类大小之间的关系：对消费者健康的影响。
DOI：
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发表时间：
2006
影响因子：
2
通讯作者：
G. Marcotrigiano
中科院分区：
文献类型：
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作者：
M. Storelli;R. Giacominelli;G. Marcotrigiano
对竹荚鱼 (Trachurus trachurus) 和地中海竹荚鱼 (Trachurus mediterraneus) 这两种具有重要商业价值的中上层鱼类的不同规格等级的总汞浓度进行了测定，以评估总汞浓度与鱼体型之间的关系，并确定任何差异是否可能影响消费者汞暴露的定量评估。竹荚鱼和地中海竹荚鱼湿重中的汞浓度分别为0.16至2.41微克·克(-1)（平均值为0.68微克·克(-1)）和0.09至1.62微克·克(-1)（平均值为0.51微克·克(-1)）。回归曲线揭示了这两个物种的汞浓度与鱼的大小（长度和重量）之间的显着关系。在这两个物种的 33.3% 样本中观察到浓度超过了建议的人类消费限值，并且与较大的样本有关。食用较大的样本可能会导致消费者汞接触量增加。根据相对于每个尺寸等级的浓度计算的估计每周摄入量显示，与食用大于 30 厘米的鱼类相关的高暴露量（竹荚鱼，11.63 至 20.16 微克/公斤体重；地中海竹荚鱼，5.86 至 13.55 微克/公斤体重）。了解导致汞暴露增加的因素可以帮助消费者做出关于吃鱼的明智决定。
Total mercury concentrations were determined in different size classes of two pelagic fish species of great commercial importance, horse mackerel (Trachurus trachurus) and Mediterranean horse mackerel (Trachurus mediterraneus), to evaluate the relationship between total mercury concentration and fish size and to determine whether any differences might affect the quantitative assessment of mercury exposure for consumers. Mercury concentrations in horse mackerel and in Mediterranean horse mackerel were between 0.16 and 2.41 microg g(-1) of weight wet (mean, 0.68 microg g(-1)) and between 0.09 and 1.62 microg g(-1) (mean, 0.51 microg g(-1)), respectively. The regression curves revealed a significant relationship between mercury concentration and fish size (length and weight) for both species. Concentrations exceeding the proposed limit for human consumption were observed in 33.3% of the samples of both species and were associated with larger specimens. The consumption of the larger specimens could lead to an increase in mercury exposure for consumers. Estimated weekly intakes, calculated on the basis of concentrations relative to each size class, revealed a high exposure associated with the consumption of fish larger than 30 cm (horse mackerel, 11.63 to 20.16 microg/kg of body weight; Mediterranean horse mackerel, 5.86 to 13.55 microg/kg of body weight). An understanding of the factors leading to an increase in mercury exposure can help consumers make informed decisions about eating fish.