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A Study of Water Quality and Biodiversity of Aquatic Organisms in the Wat Nam Phut Khlong Area, Mueang District, Trang Province, Thailand

Organization(s):Wichienmatu
Country:Thailand
Student(s):Miss Nichapha Thongrop Miss Thanwarat rakrueang Miss Natnicha bunya
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Kwanjai Karnchanasrimek
Contributors:Mrs. Sawitree Duangsook Mrs. Sutheera Thacheen
Report Type(s):Virtual Science Symposium Report
Protocols:Dissolved Oxygen, pH, Water Temperature, Water Transparency
Presentation Poster: View Document
Language(s):English
Date Submitted:2026-01-30
The study showed that water quality parameters, including transparency, pH, temperature, and dissolved oxygen, were similar across all sampling sites, indicating stable and suitable conditions for freshwater organisms. Slightly acidic pH, moderate temperatures, and adequate dissolved oxygen reflected good water quality. The presence of Stratocumulus clouds with high coverage may have helped reduce sunlight intensity, contributing to stable water temperatures and overall water quality.
The study of water quality and biodiversity in the khlong behind Wat Nam Phut, Mueang District, Trang Province, Thailand, aimed to investigate the water quality of the khlong and the biodiversity of living organisms found in the area. The water quality assessment included measurements of water transparency, pH, water temperature, dissolved oxygen, and cloud cover at three sampling sites. The results showed that water quality at all sites was similar and generally at a fairly good level. The average water transparency was 57.91 ± 0.33, the average pH was 6.0 ± 0.0, the average water temperature was 27.89 ± 0.38 °C, and the average dissolved oxygen was 6.3 ± 0.0 mg/L. The biodiversity study identified a total of seven species of organisms: Euglena sp., Netrium disitus (Brekissen ex Ralfs), Tabellaria flocculosa, Philodina sp., Keratella sp., Staurastrum sp. In addition, cloud cover observations revealed four types of clouds in the study area: Altocumulus with an average value of 35, Nimbostratus with an average value of 35, Stratocumulus with an average value of 70, and Cirrus with an average value of 17.5. Overall, the water quality met the standard criteria of the Surface Water Quality Index, classified as Type 2


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