Survey of the Surface Water Quality within Muang Nakhon Reception House, Phrom Khiri District, Nakhon Si Thammarat Province, by using Biological Indicators
Abstract
This research was to survey the surface water quality within Muang Nakhon Reception House, Phrom Khiri District, Nakhon Si Thammarat Province, by using biological indicators. Inside the City Hall By collecting samples at 5 points, conducted for 3 months, from August to October 2021, samples were collected once a month. Using bricks and a colander Collect insect larvae and organisms as indicators of water quality at predetermined points and compare them using assessment criteria according to the Green World Foundation's Water Detective Guide 2018. The results of the survey revealed the diversity of aquatic insect groups in 5 ranks, 8 families, respectively, from Odonata, Gastropod, and Hemiptera, 2 of each, while Ephemeroptera, Caridea, of 1 of each, respectively. Water quality from all 5 sampling points was within the criteria of fair water quality. Suitable for use in agriculture and animal husbandry. Found insect larvae and organisms that are water quality indicators such as shrimp, periwinkle, pagoda snails, short insect larvae, and solitary dragonfly larvae. The nature of water source will have a large accumulation of leaves and weed debris and be partially covered with grass. There is always a flow of water. The survey, insect larvae, and organisms that are indicators of clean water quality and fair water quality are also found in the same spot. Caused by the adaptation of insect larvae to adapt to all environments for living.References
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