TOKSISITAS Cu(II) TERHADAP Chaetoceros sp. DAN PENGARUH Cu(II) TERHADAP KANDUNGAN KLOROFIL-a; Cu(II) TOXICITY TO Chaetoceros sp. AND Cu(II) EFFECT ON CHLOROPHYLL-a CONTENT

ARNITA TRI AGUSTIN, Nurul Hidayat Aprilita

2015 | Skripsi | FMIPA

A research on the Cu(II) toxicity to Chaetoceros sp. and its effect on chlorophyll-a had been conducted. This research was conducted to find out IC50 value of Cu(II) on Chaetocheros sp., the exposure effect of Cu(II) on the growth and the morphology respons of its cells, and to find out the toxicant effect on the amount of chlorophyll-a. This research was conducted through several steps i.e: Cu(II) toxicity test based on standard method from Asean Canada Cooperative Program on Marine Science (ACCPMS), photo microscopic was used to see the morphology respons and chlorophyll-a test using Flourometer Turner Trilogy type AU-10. The result showed that IC50 of Cu(II) on the microalgae Chaetoceros sp. is 30.25 ?g L-1. The exposure of Cu(II) hampered the growth of microalgae Chaetoceros sp. The increasing of inhbition cell is proportional with the increasing of Cu(II) concentration. The exposure of Cu(II) caused deformation on the microalgae cell wall and caused the setae to sheer off. The amount of chlorophyll-a microalgae Chaetoceros sp. decreases as the exposed concentration of Cu(II) is raised.

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