Pollution Research Paper

Vol 39, Issue 1, 2020; Page No.(56-59 )

THE GROWTH BEHAVIOR OF FRESHWATER AND MARINE MICROALGAE EXPOSED TO CD AND CU

DIANA ARFIATI, DWICANDRA PRATIWI, NIKEN PRATIWI AND QURROTA AYUNIN

Abstract

Cadmium and copper are essential and non-essential heavy metals that often appear as water pollutants as a residue of land-based activity. Both of these metals can disrupt metabolism and inhibit the growth of Microalgae. This study is one of continued-research of our long-term study to conclude the life history of both freshwater and marine microalgae living in heavy metal-stress environment. The heavy metal exposed test was conducted in 3 species of microalgae namely Chaetoceroscalcitrans, Skeleton emacostatum, and Nannochloropis sp. The main goal of this research is to find out their growth-behavior under the presence of Cd and Cu. The concentrations used were 0.7, 1.3, and 1.9 ppm with 3 replications of each. Exposure carried out for 96 hours using microalgae aged 4 days (on their exponential phase). Calculation of microalgae density is conducted manually every 12 hours to monitor their growth response to particular concentration.

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