葫芦岛地区东亚飞蝗体内的汞含量及分布

Mercury concentration and distribution in Locusta migratoria manilensis in Huludao City of Liaoning Province,China

通过调查葫芦岛地区东亚飞蝗(Locusta migratoria manilensis)体内的Hg浓度,研究了Hg在其不同器官中的含量与分布。结果表明:葫芦岛地区东亚飞蝗体内的Hg浓度较高,Hg含量范围为0.33～174.86ng·g-1,平均值为36.44ng·g-1;东亚飞蝗体内总Hg及不同器官中总汞浓度均与体长、体质量呈显著的负相关;东亚飞蝗不同器官中的总Hg浓度为翅膀>头>腹>胸≈足;随着飞蝗体质量增加,飞蝗体内绝对Hg含量增大,但生物量稀释作用使飞蝗体内总Hg浓度降低。Hg主要累积在飞蝗的翅膀和头部。生物量稀释作用及将Hg累积到翅膀中可能是东亚飞蝗抵御Hg危害的重要机制。

Locusta migratoria manilensis samples were collected from Huludao City of Liaoning Province, and the mercury concentration and distribution in their different organs were studied. The results showed that the mercury concentration in L. migratoria manilensis was relatively high, being 0. 33-174. 86 ng· g^-1, with an average of 36. 44 ng· g^-1 . The total concentration of mercury in L. migratoria manilensis and its different organs was significantly negatively correlated with its body length and mass, and decreased in the order of wing 〉 head 〉 abdomen 〉 thorax ≈ leg. The absolute mercury concentration in L. migratoria manilensis increased with body mass, but decreased due to biomass dilution. Mercury was mainly accumulated in the head and wing of L. migratoria manilensis. The biomass dilution and mercury accumulation in wing might be the important mechanism of L. migratoria manilensis in resisting mercury hazard.