Benthic epiphytic dinoflagellate assemblages in the fringing reefs of Sampadi island and Satang Besar island, Sarawak

Kam, Bao Juan (2013) Benthic epiphytic dinoflagellate assemblages in the fringing reefs of Sampadi island and Satang Besar island, Sarawak. [E-LPTA] (Unpublished)

[img]
Preview
PDF
Benthic Epiphytic Dinoflagellate Assemblages in the Fringing Reefs of Sampadi Island and Satang Besar Island, Sarawak (24pgs).pdf

Download (647kB) | Preview
[img] PDF
Benthic Epiphytic Dinoflagellate Assemblages in the Fringing Reefs of Sampadi(OCR).pdf
Restricted to Registered users only

Download (1MB)

Abstract

This study presents a comprehensive examination of the taxonomy of the genus Ostreopsis. The genus Ostreopsis includes several species capable of producing various palytoxin-like compounds which have harmful effects on human and marine fauna. Species in this genus are regular members of the epiphytic community in tropical seas but their geographical range have shown an apparent expansion towards temperate regions in recent years. In this study, clonal cultures of Ostreopsis from Sampadi and Satang Besar Island, Sarawak were established. The morphology of the strains was described from light, epi-fluorescence and scanning electron micrographs. Based on detailed morphological observation and morphometric measurements, the strains were designated as two Ostreopsis species; O. cf. ovata and O. cf. lenticularis. The benthic harmful dinoflagellate (BHAB) assemblages of Sampadi and Satang Besar Island were investigated and compared. The results showed that all five major genera of BHAB species, viz. Amphidinium, Coolia, Gambierdiscus, Ostreopsis and Prorocentrum were found in Sampadi Island, whilst in Satang Besar Island, Ostreopsis spp. was dominated the site. This could be due to several environmental variables among which light intensity, temperature, hydrodynamism, and substrate typology seem to display major roles, while links with salinity and nutrient levels are less clear. Less research has been conducted on Ostreopsis than other benthic dinoflagellates, but the future path of research on Ostreopsis should follow a similar trajectory; which is the revision of the taxonomy, genotyping and physiological studies.

Item Type: E-LPTA
Additional Information: Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2013.
Uncontrolled Keywords: Dinoflagellates, Peridiniaceae, Universiti Malaysia Sarawak, UNIMAS, university, university, education, IPTA, research, Sarawak, Malaysia, kuching, samarahan, borneo, undergraduate
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > Q Science (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 14 May 2015 03:59
Last Modified: 17 Sep 2015 00:05
URI: http://ir.unimas.my/id/eprint/7474

Actions (For repository members only: login required)

View Item View Item