Biofilm as a bioindicator of Cr VI pollution in the Lotic Ecosystems

Asean-Fen International Fisheries Symposium - 2017

Kurniawan, A.^1,2 ; Sukandar^2 ; Satriya, C.^1,2 ; Guntur^2

Coastal and Marine Research Center, University of Brawijaya, Indonesia^1

Faculty of Fisheries and Marine Science, University of Brawijaya, Indonesia^2

关键词: Biofilm matrix;    Heavy metal pollution;    Lotic ecosystems;    Pollution of heavy metals;    River ecosystem;    Sorption capacities;    Water flows;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/137/1/012062/pdf
DOI  :  10.1088/1755-1315/137/1/012062

来源: IOP

【 摘 要 】

Biofilm is ubiquitous in aquatic ecosystems such as river. Biofilm have been reported to have high sorption capacities that promote the accumulation of nutrient ions inside biofilm matrix. The ion that can be accumulated inside the biofilm is not only nutrient ions but also other ions such as heavy metal ions. The pollution of heavy metal ions emerge as one of the biggest aquatic ecosystem problems. Thus, the effort to monitor the heavy metal pollution in the aquatic ecosystem in the aquatic ecosystems is needed. The difficulty to monitor the water pollution particularly in the lotic ecosystems is mainly related to the water flow. Therefore, the utilization of indicator of pollution in such ecosystem is fundamentally important. The present study investigated the accumulation of Cr VI inside biofilm matrices in the river ecosystems in order to develop biofilm as a bioindicator for pollution in the lotic ecosystems. The result indicates that biofilm can accumulate Cr VI from the surrounding water and reserve the ion. According to the result of this study, biofilm is a promising bioindicator to monitor the Cr VI pollution in the lotic ecosystems.