<![CDATA[AbstractCarrying capacity is defined as the ability of aquatic environment to support the life of organism in that area. A study aimed to assess the aquatic carrying capacity based on chlorophyll-a for extensive fishing in the Tuok Tonga Lake, Buluh China Village,Siak Hulu Sub District, Kampar District, Riau Province.The carrying capacity was determined based on primary productivity using chlorophyll-a concentration, which is indicating the existence of phytoplankton in the water. This research was conducted in June-July 2019. There were 3 stations, namely Station 1 (inlet area), Station 2 (in the middle of the lake) and Station 3 (in the end of the lake). In each stations, there were two sampling point, in the surface and in 2 Secchi depth. Sampling was done three times once/week. Water quality parameters measured were chlorophyll-a, temperature, transparency, depth, pH, dissolve oxygen, CO2, nitrate and phosphate. Results shown that chlorophyll-a: 14.03-17.07 μg/L, transparency: 61.7-62.3 cm, temperature: 29.3-31oC, depth: 125-284 cm, pH: 5, dissolved oxygen: 3.37-4.94mg/L, CO2:5.32-11.98mg/L, nitrate: 0.02-0.08 mg/L and phosphate: 0.04-0.1mg/L. Based on concentration of chlorophyll-a indicates that the carrying capacity of the Tuok Tonga Lake for extensive fishing was 0.85 tons/year.Keywords: Oxbow lake, Primary productivity, Water quality]]>
Copyrights © 2020
