Produktivitas Primer Rawa Jombor, Klaten, Jawa Tengah

Belinda Dian Anggraeni, Wibowo Nugroho Jati, Felicia Zahida

Abstract


Primary productivity of Jombor Swamp, Klaten has been assessed in order  to understand its water quality. The method used was using light-dark bottles incubated for 4 hours. Samples were taken between 6-10, 10-14 and 14-18 hour, under the depth  0.2, 1.5, and 3 m. The results showed  that productivity in April – 2.4 to 2.17 ppm, May –0.6 to 2 ppm, and June –2.1 to 3.4 ppm. The regression correlation of the productivity to phytoplankton`s density is y = -0.03 + 0.01 x and r = 0.76, productivity to light intensity is y = -5.04 + 0.01 x and r = 0.63, productivity to water depth is y = 0.56 + 0.12x and r = 0.31,  productivity to turbidity is y = 1,78 + 0.33x and r = 0.35, productivity to water temperature is y = 1.91 – 0.08x and r = 0.32, productivity to pH is y = 1.39 – 0.71x and r = 0.20,  and productivity to CO2 content is y = 1.77 – 0.11 and r = 0.29. Based on the overall findings, the water quality condition was classified as eutrophic.


Keywords


primary productivity, density, phytoplankton, zooplankton

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DOI: https://doi.org/10.24002/biota.v8i2.2886

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