Student Research Reports
The study on water Quality and Phytoplankton Species in Khlong Chang, Trang Province.
Organization(s):Wichienmatu
Country:Thailand
Student(s):Ms. Nanthicha Manaso
Ms. Suwichada Rattana
Ms.Ananluck Sangthong
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Educator(s):Thamonwan Bunchuay
Contributors:Mrs. Orapin Noonum
Mrs. Sawitree Duangsuk
Report Type(s):International Virtual Science Symposium Report
Protocols:Air Temperature, Clouds, Dissolved Oxygen, pH, Water Temperature, Water Transparency
Presentation Poster:
View Document
Language(s):English
Date Submitted:03/05/2025
The study of water quality and phytoplankton types in Khlong Chang, Na To Ming
Subdistrict, Mueang District, Trang Province aimed to 1) study the water quality in Khlong
Chang, Na To Ming Subdistrict, Mueang District, Trang Province, which found that the average
pH was 8, the average temperature was 26 degrees Celsius, the transparency was 60
centimeters, and the average dissolved oxygen was 6.27 mg/l. The measured values indicated
that the water quality was good because the water source was rich in pH between 7.5 and
8.5, which is the range where plankton can be found, which is consistent with the research of
Thiraphon Malikongsingh (2022). 2) To study the types of plankton in Khlong Chang, Na To
Ming Subdistrict, Mueang District, Trang Province, it was found that there were 5 types of
plankton: Cosmarium, Surirella, Aulacoseira, Oscilatoria, Spiurlina, where Cosmarium is found
in abundance in clear water with nutrients, Oscillatoria can survive in clear water, Spirulina is
found in abundance in clear water with high nutrients and high pH, more than turbid water
with a lot of suspended sediment.