| 蝉中汞含量及其分布特征研究 |
| 摘要点击 1607 全文点击 1779 投稿时间：2009-03-16 修订日期：2009-04-24 |
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| 中文关键词 蝉 膜翅，蝉蜕 汞 分布 |
| 英文关键词 cicadae wings exuviae mercury distribution |
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| 中文摘要 |
| 研究了葫芦岛氯碱-有色冶金化工区蝉汞、膜翅汞及蝉蜕汞的含量，比较了蝉与其它昆虫汞含量的差异，探讨了汞在蝉体内的分布特征.结果表明，蝉汞含量很高，平均值为2.64 mg·kg-1，远高于对照点地区蝉汞含量(平均为1.00 mg·kg-1)；蝉中汞的分布特征为蝉汞>膜翅汞(平均为0.98 mg·kg-1)>蝉蜕(平均为0.50 mg·kg-1)；不同性别蝉体质量、汞含量存在显著差异，雌性蝉体质量(平均为1.11 g)显著高 |
| 英文摘要 |
| Total mercury contents of cicadae bodies,wings and exuviaes were studied in Huludao City to discuss mercury distribution characteristics in cicadae and to reveal the environmental mercury accumulation effects in the long life-cycle insects through comparing cicadae with other insect species. The average mercury contents of cicadae bodies were 2.64 mg·kg-1 and much higher than those in the contrast sites (1.00 mg·kg-1 on average) in Huludao City. Mercury contents were found in the order of cicadae bodies>wings (0.98 mg·kg-1 on average)>exuviaes (0.50 mg·kg-1 on average). Sex differences of mercury contents and body weights of cicadae were significantly great. The females had larger body weights (1.11 g on average) and lower mercury contents (1.34 mg·kg-1 on average) than the males (body weight: 0.54 g on average; mercury contents: 3.38 mg·kg-1 on average),respectively. Mercury contents of cicada’s bodies varied greatly with sample sites,mercury contents of wings changed little. No significant correlation was found between mercury contents of soil and cicadae bodies. Mercury contents of cicadae were lower than those of dragonflies,higher than those of other insects with shorter life-cycle periods and it reflected the accumulation effects of environmental mercury in the long life-cycle insects such as cicadae. |
