PERIFITON COMMUNITY AND CHARACTERISTICS OF CHEMICAL PHYSICS AS INDICATORS OF QUALITY OF WATERS IN MAMBERAMO RIVER PAPUA PROVINCE

dwirastina mirna, dwi Atminarso

Abstract


The area of the Mamberamo river waters is around 7.7 million hectares. Part of the water area is surrounded by jungle which is rich in unique biodiversity. Diverse biodiversity must be accompanied by a state of good water quality. So that monitoring of water quality is very necessary both in terms of chemical and biological physical parameters. Monitoring using chemical physics parameters has been widely used, but using aquatic biota is still rare, so it is expected to be more assertive in expressing the damage to the river. Aquatic biota used is periphyton. Periphyton has the potential as an ecological indicator, a major producer in the food chain and its properties attached to the water substrate. The purpose of the study was to determine the diversity of the perifiton community, to find out the quality of the water in terms of the chemical physics of the Mamberamo river and to see the relationship between the two parameters. The method used was purposive sampling with descriptive analysis. Research sitesconducted at four stations, namely February, May, August and October 2016. The results showed the highest periphyton composition in Bacillariophyceae class followed by Chlorophyceae and Cyanophyceae. The Mamberamo river diversity value is 1 <H ’= 3 which indicates medium diversity, and the domination index values range from 0.15 to 0.45 which indicates that there is no species dominating in the waters of the Mamberamo River. Some of the physical chemical parameters measured to support the research include temperature and N element content in the waters. Based on the results of the water quality assessment in the presence of periphyton and the chemical and physical characteristics of water, the quality criteria for river waters are considered good and not polluted.

Keywords: Community, Characteristics of chemical physics, Perifiton, Mamberamo River, Papua.

 




DOI: https://doi.org/10.13170/depik.9.3.16497

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