CD Skripsi
Biomassa (Biovolume) Perifiton Pada Substrat Kaca Di Danau Tuok Tonga Di Desa Buluh Cina Kecamatan Siak Hulu Kabupaten Kampar
Abstract
Periphyton is a microorganism that attached to a submerged substrate.
This research aims to determine the biomass of periphyton in Tuok Tonga Lake
based on periphyton biovolume was conducted in June-July 2019. There were
three sampling points, namely in the inlet, in the middle of the lake and in the end
of the lake. In each sampling point, water was sampled from the surface and 2
Secchi depth. Samplings were conducted 3 times, once/week. Water quality
parameters measured were temperature, transparency, depth, dissolved oxygen,
CO2, pH, nitrate and phosphate contents. Results shown that there were 32 species
of periphyton that were belonged to 4 classes, namely Bacillariophyceae (14
species), Chlorophyceae (12 species), Cyanophyceae (3 species) and
Euglenophyceae (2 species). The periphyton biomass (biovolume) in the Tuok
Tonga Lake was 4×10-5-1×10-1 mg/cells. The most common type of periphyton
present was Cosmarium cucumis. Biomass (biovolume) at each station is different
at station 1: is (309.864 mg/cm2), station 2 (195.0785 mg/cm2) and at station 3 is
(246.3429 mg/cm2). Periphyton biovolume is generally ranges (0.004725-37.8014
mg/cm2). Water quality parameters that support periphyton growth, namely
temperature was 29.7-31.7oC, transparency was 61.7-62.7 cm, depth was 125-284
cm, pH was 5, dissolved oxygen was 3.4-5 mg/L, CO2 was 5.3-14.7 mg/L, nitrate
was 0.02-0.08 mg/L and phosphate was 0.03-0.15 mg/L.
Keywords: Kampar River, Oxbow Lake, Cosmarium cucumis
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