Madigosky S R, Alvarez-Hernandez X, Glass J
Department of Biology, Widener University, Chester, Pennsylvania 19013.
Arch Environ Contam Toxicol. 1991 Feb;20(2):253-8. doi: 10.1007/BF01055912.
The concentration of Pb, Cd, and Al in tissues of crayfish Procambarus clarkii were evaluated from several wetland sites located adjacent to roadways and were compared to crayfish harvested from a commercial site free from roadside influences. Abdominal muscle, hepatopancreas, alimentary tract, exoskeleton and blood were analyzed for metal content. Results indicated that levels of contamination obtained in almost all tissues of crayfish from roadside ditches contained significantly higher amounts of metals than those of the commercially harvested control crayfish (p = less than or equal to .05-.001). Detection limits of Pb, Cd, and Al ranged from 0.04 microgram Pb/g to 16.15 micrograms Pb/g, .001 microgram Cd/g to .13 microgram Cd/g, and 1.22 micrograms Al/g to 981 micrograms Al/g, respectively. Concentrations of Pb, Cd, and Al were highest in the hepatopancreas and alimentary tract. High levels of these elements were also detected in the exoskeleton. In contrast, muscle tissue was the least affected tissue. Several significant correlations among concentrations of metals were found when comparing a variety of tissues in Procambarus clarkii.
对来自几个靠近道路的湿地地点的克氏原螯虾组织中的铅、镉和铝浓度进行了评估，并与从不受路边影响的商业地点收获的小龙虾进行了比较。分析了腹部肌肉、肝胰腺、消化道、外骨骼和血液中的金属含量。结果表明，路边沟渠中小龙虾几乎所有组织中的污染水平所含金属量均显著高于商业收获的对照小龙虾（p值小于或等于0.05 - 0.001）。铅、镉和铝的检测限分别为0.04微克铅/克至16.15微克铅/克、0.001微克镉/克至0.13微克镉/克以及1.22微克铝/克至981微克铝/克。肝胰腺和消化道中铅、镉和铝的浓度最高。在外骨骼中也检测到了这些元素的高含量。相比之下，肌肉组织受影响最小。在比较克氏原螯虾的各种组织时，发现金属浓度之间存在几个显著的相关性。
