Salinity effect on growth of three dinoflagelltaes, protoceratium reticulatum, alexandrium tamiyavanichii and alexandrium tamutum

Nurul Zainab, Binti Along (2012) Salinity effect on growth of three dinoflagelltaes, protoceratium reticulatum, alexandrium tamiyavanichii and alexandrium tamutum. [Final Year Project Report] (Unpublished)

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Abstract

Dinoflagellate Protoceratium reticulatum, Alexandrium tamiyavanichii and Alexandrium tamutum are among the toxic and non-toxic dinoflagellate species found recently in Malaysian waters. To determine the salinity tolerance and growth of dinoflagellate species, study was carried out using clonal cultures available at UNIMAS cultures collection. Cultures were maintained in ES-DK medium under a light intensity of 140 µmol m-2s -1 and 12:12 hour light:dark photoperiod. Natural seawater had been used as the medium base. Salinities variation were 5, 10, 15, 20, 25 and 30 psu. The cell counting was carried out under a light microscope approximately every two to three days. Mean cell diameter and cell volume were taken and calculated. P. reticulatum salinity tolerance was between 30-10 psu, A. tamutum between 30-15 psu and A. tamiyavanichii between 30-20 psu. P. reticulatum, A. tamutum were categorised as euryhaline species, while A. tamiyavanichii as a stenohaline species. Cell volume was decreasing as salinities concentration increasing. Salinity tolerance in decreasing order A. tamiyavanichii < A. tamutum < P. reticulatum.

Item Type: Final Year Project Report
Additional Information: Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2012.
Uncontrolled Keywords: Dinoflagellates, Peridiniaceae, Protoceratium reticulatum, Alexandrium tamiyavanichii, A. tamutum, salinity tolerance, FSTS, 2012, Universiti Malaysia Sarawak, UNIMAS, universiti, university, Borneo, Malaysia, Sarawak, Kuching, Samarahan, IPTA, education, undergraduate, research
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > Q Science (General)
Q Science > QH Natural history > QH301 Biology
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 21 Jan 2015 06:13
Last Modified: 13 May 2015 00:19
URI: http://ir.unimas.my/id/eprint/6251

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