The Ecological Analysis of The Habitat of Semah Fish (Tor tambroides, Bleeker 1854) in The Kampar Kanan Hulu River Koto Kampar Hulu District, Kampar Regency, Riau Province

Semah fish (Tor tambroides, Bleeker 1854) is one of the asian endemic fish species that have high economic value. Living from this semah fish inhabits the upper reaches of the river, one of which is the upper reaches of the right upper Kampar river, which is located in Koto Kampar Hulu District, Kampar Regency, Riau Province. From the data and information obtained, the presence of the number of semah fish in the Kampar river continues to experience a decrease in population. The decline in the population of this semah fish is thought to be due to changes in the ecological conditions of this semah fish habitat. This study aims to analyze ecological aspects, namely in the form of physico-chemical factors of water quality of the Kampar Kanan Hulu River in Bandur Picak village as a habitat for semah fish. Water sampling was carried out in the waters of the Kampar Hulu Kanan River, Bandur Picak Village, Koto Kampar Hulu District, Kampar Regency, Riau Province. This study used a survey method where data was taken directly to the location using in situ and exsitu analysis to explain the characteristics of the semah fish habitat. Data analysis was carried out descriptively. The results of this study showed in measuring water quality with the results of physical parameters, including: temperature of 24—26 °C, current speed of 0,44—0.5 m/s, depth of 0.95—2.3 m, and brightness of 0,44—0.5 m, Total Suspended Solid (TSS) 6—11 mg/l, Total Suspended Solid (TDS) 28.2—37.6 ppm. As for the chemical parameters, the water quality is as follows: DO 7,2—8 ppm, pH 6, CO2 7.99 ppm, Total Posphat 0.15—0.17 ppm, Total Nitrogen 1.28—1.46 mg/l and NH3 0.11—0.14 ppm.