Possible effects of metals on the growth of gracilaria sp. (rhodophyta)

Wee, Joanna Beng Choo. (2004) Possible effects of metals on the growth of gracilaria sp. (rhodophyta). [Final Year Project Report] (Unpublished)

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Abstract

The effects of copper, zinc, and iron on the growth of Graci/aria sp. were studied in vitro. The Graci/aria sp. tissues were cultured under five different concentrations (OIlM, 0.1 J.1M, 0.5J.1M, 10.0J.1M and 50.0pM) of these metals. The growth rate and chlorophyll a concentration of the algae were measured weekly during a 21 days cultivation. Results showed that, there were significant difference between different concentrations of various trace metal towards alga mean growth rate and mean chlorophyll a concentration. The sensitivity of the trace metal was generally lower at low concentrations of the various trace metal. A reduction in the mean growth rate of Graci/aria sp. was found for high concentration (50.0J.1M) of these trace metals. In conclusion, this is a simple, sensitivity and reproducible test method for assessing the toxicity of copper, zinc and iron in brackish and marine environments.

Item Type: Final Year Project Report
Additional Information: Project report (B.Sc.) -- Universiti Malaysia Sarawak, 2004.
Uncontrolled Keywords: Algae Composition, Algae, Graci/aria, mean growth rate, mean chlorophyll a concentration, copper, zinc, iron, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, research, Universiti Malaysia Sarawak
Subjects: Q Science > QR Microbiology
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Faculties, Institutes, Centres > Faculty of Resource Science and Technology
Depositing User: Saman
Date Deposited: 09 Oct 2017 03:01
Last Modified: 11 Mar 2024 08:25
URI: http://ir.unimas.my/id/eprint/18044

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