Publication: Examination of diatoms from the telupid district water samples by digestion technique using concentrated nitric acid (HNO3)
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Date
2025-02
Authors
John, Ricxley
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Abstract
Diatoms are a type of algae classified in a group of microalgae which undergo photosynthesis. They are unicellular eukaryotic organisms characterised by having a siliceous covering also known as frustule. Diatoms are found in almost every aquatic environment including fresh and saltwater, which is basically in moist environments. In this study, the examination of diatoms was carried out against three water samples collected from different locations in the Telupid District, Sabah to represent different location environments such as palm plantations, recreational area/park and undisturbed water sources or flow. An acid digestion method using concentrated nitric acid was used to observe the diatom. Interestingly, none of the centric diatoms were reported from all water samples. The only type of diatom was a pennate group diatom, which has a bilateral symmetry. In summary, the diatom data generated in this study can serve as a preliminary diatom database for other researchers in the same field
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