Abstract

Trace metal concentrations in two species of mysids, Mesopodopsis orientalis and Rhopalophthalmus indicus, from the Cochin estuary, were investigated during the monsoon and pre-monsoon periods. Metal concentration (ppm, dry weight) ranges in mysids during the monsoon and pre-monsoon periods were: Fe (775.75 to 1254.12), Mn (7.85 to 14.57), Co (0.76 to 1.75), Ni (11.19 to 20.00), Cu (20.02 to 47.42), Zn (66.83 to 106.62), Cr (14.30 to 28.45), Cd (0.53 to 1.70) and Pb (7.16 to 14.19). Trace metal bioaccumulation in mysids was found to be species-specific with higher metal concentrations in R. indicus than M. orientalis. Data on trace metal concentrations in mysids are important for environmental forensic investigations, useful for bio-monitoring (i.e., tracing) sources of contaminants (i.e., metal pollutants) and their impacts, and valuable for tracking the dispersal pathways of contaminants in estuarine environments.

摘要

在季风期和季风前期，研究了来自科钦河口的两种类腮腺炎（Mesopodopsis Orientalis和Rhopolophthalmus indicus）中的痕量金属浓度。季风和季风前时期的类金属体中的金属浓度（ppm，干重）范围为：Fe（775.75至1254.12），Mn（7.85至14.57），Co（0.76至1.75），Ni（11.19至20.00），Cu （20.02至47.42），锌（66.83至106.62），铬（14.30至28.45），镉（0.53至1.70）和铅（7.16至14.19）。发现芥菜中的痕量金属生物富集是物种特异性的，印度dic中的金属浓度高于侧柏。。豆my中痕量金属的浓度数据对于环境法证研究非常重要，对于生物监测（即追踪）污染物（即金属污染物）的来源及其影响非常有用，对于追踪河口环境中污染物的扩散途径也很有价值。