Abstract

Macroinvertebrates are easily available, identified and have been used as bio-monitoring agent successfully. It is useful in detecting transient and longtime pollution to our aquatic system. The aim of this study was to determine the relationship between river water quality and the macroinvertebrates organism in the stream. Pauh River in Cameron Highlands, Malaysia has been chosen for this study. A total of six monitoring stations along Pauh River were setup in this study. In-situ field investigation and water sampling was conducted. Malaysian’s Water Quality Index (WQI) for the 6 sampling stations are calculated and compared with the macroinvertebrates sample. The pattern of distribution and abundance of different macroinvertebrates which correspond to polluted and non-polluted parts of each river studied suggested macroinvertebrates could be used as potential indicators for bio-monitoring in Malaysia.

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