使用双,海绵,海和类物种作为生物指标进行重金属积累分析
D Vidyalakshmi1, Aneena Yesudas1, Gopika Sivan1
1Department of Marine biology, Microbiology and Biochemistry, Cochin University of Science and Technology, Kerala, India.
Marine pollution bulletin
|April 25, 2024
概括
海洋生物指标,如海绵,海,胃类动物和双动物,显示出各种重金属积累. 海绵对有好处,而海刺则表明和,脚动物和双动物积累铜.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学 环境科学
- 生态毒理学 生态毒理学
背景情况:
- 海洋生态系统面临重金属污染的威胁.
- 生物指标对于监测环境污染至关重要.
- 了解盆地生物中的金属生物积累对于风险评估至关重要.
研究的目的:
- 为了比较评估四种海洋盆地生物指标的重金属积累潜力.
- 为了确定最适合指示特定重金属污染的特定生物.
- 用生物水和生物沉积物的积累因子来评估生物积累.
主要方法:
- 从一个单一位置收集了四种海洋盆地生物指标 (Perna perna,Callyspongia fibrosa,Tripneustes gratilla,Purpura bufo).
- 在水,沉积物和不同生物体的身体部位中分析了十种重金属度.
- 计算生物水积累因子和生物沉积物积累因子,以评估生物积累潜力.
主要成果:
- 在四种生物指标物种中观察到重金属生物积累的显著差异.
- 这种海绵 (Callyspongia fibrosa) 显示高 (Cd) 积累 (2.60μg/g).
- 海 (Tripneustes gratilla) 积累了高 (Cr) (16.98 μg/g) 和 (Pb) (4.80 μg/g) 的含量.
- 胃足动物 (Purpura bufo) 显示出主要的铜 (Cu) 积累量 (21.05 μg/g),其次是双动物 (Perna perna) (17.67 μg/g).
- 与生物组织相比,硬部位的金属度较低.
结论:
- 不同的地生物指标在积累特定重金属方面表现出明显的亲和力.
- 海绵,海,类动物和两动物可以作为特定金属的可靠指标,例如Cd,Cr,Pb和Cu.
- 组织积累通常高于硬部件,突出显示了组织分析对于准确的生物指标评估的重要性.
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