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Monitoring of bleaching on massive coral, Porites lobata and predation on staghorn coral, Acropora tumida by corallivorous gastropods in Tung Ping Chau, Hong Kong.

Choi Mei Mei. / Thesis submitted in: December 2002. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 214-236). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgements --- p.vi / Table of Contents --- p.viii / List of Tables --- p.xi / List of Figures --- p.xii / Chapter Chapter One: --- General Introduction --- p.1 / Chapter 1.1 --- Introduction --- p.1 / Chapter 1.1.1 --- Coral bleaching --- p.2 / Chapter 1.1.2 --- Predation of corals by corallivorous gastropods --- p.20 / Chapter 1.2 --- Introduction of Study Sites- Tung Ping Chau --- p.33 / Chapter 1.3 --- Objectives of the Study --- p.35 / Chapter 1.4 --- Structure of this Thesis --- p.36 / Chapter Chapter Two: --- "Coral Bleaching and Predation by Corallivorous Gastropods in the Coral Communities of A Ye Wan and A Ma Wan, Tung Ping Chau" --- p.40 / Chapter 2.1 --- Introduction --- p.40 / Chapter 2.2 --- Materials and Methods --- p.45 / Chapter 2.2.1 --- Quantitative surveys --- p.45 / Chapter 2.2.2 --- "Quantifying the colour of corals, Porites lobata, in Tung Ping Chau" --- p.47 / Chapter 2.2.3 --- Physical parameters --- p.49 / Chapter 2.2.4 --- Data and statistical analysis --- p.49 / Chapter 2.3 --- Results --- p.50 / Chapter 2.3.1 --- Live coral coverage in A Ye Wan and A Ma Wan --- p.50 / Chapter 2.3.2 --- Proportion of Porites lobata paled --- p.52 / Chapter 2.3.3 --- Changes in colour intensity of Porites lobata between seasons --- p.54 / Chapter 2.3.4 --- Density of corallivorous gastropods --- p.55 / Chapter 2.3.5 --- Percentage coverage of live and dead Acropora tumida --- p.55 / Chapter 2.3.6 --- Physical parameters --- p.57 / Chapter 2.4 --- Discussion --- p.59 / Chapter 2.4.1 --- Live coral cover in A Ye Wan and A Ma Wan --- p.59 / Chapter 2.4.2 --- Bleaching of Porites lobata in summer and winter --- p.61 / Chapter 2.4.3 --- Colour intensity of Porites lobata in different seasons --- p.67 / Chapter 2.4.4 --- Predation on corals by corallivorous gastropods --- p.69 / Chapter Chapter Three: --- "Study on Coral Bleaching, Pontes bbata, in Tung Ping Chau by using Permanent Quadrats" --- p.103 / Chapter 3.1 --- Introduction --- p.103 / Chapter 3.2 --- Materials and Methods --- p.104 / Chapter 3.2.1 --- Study sites --- p.104 / Chapter 3.2.2 --- Permanent quadrat monitoring --- p.105 / Chapter 3.2.3 --- Corals sampling for zooxanthellae density and chlorophyll a concentration analysis --- p.106 / Chapter 3.2.3.1 --- Tissus collection --- p.106 / Chapter 3.2.3.2 --- Zooxanthellae counting --- p.107 / Chapter 3.2.3.3 --- Chlorophyll a determination --- p.107 / Chapter 3.2.3.4 --- Determination of coral surface area --- p.108 / Chapter 3.2.4 --- Data analysis --- p.108 / Chapter 3.3 --- Results --- p.109 / Chapter 3.3.1 --- Monitoring of bleaching of porties lobata in permanent quadrat --- p.109 / Chapter 3.3.2 --- Density of Zooxanthellae in Porites lobata --- p.111 / Chapter 3.3.3 --- Concentration of Chlorophyll a in Porites lobata --- p.112 / Chapter 3.3.4 --- Chlorophyll a per zooxanthellae --- p.113 / Chapter 3.4 --- Discussion --- p.114 / Chapter Chapter Four --- Study of Predation on coral Acropora tumida by Corallivorous Gastropods in Tung Ping Chau --- p.138 / Chapter 4.1 --- General Introduction --- p.138 / Chapter 4.2 --- Materials and Methods --- p.140 / Chapter 4.2.1 --- Study sites --- p.140 / Chapter 4.2.2 --- Preliminary evaluation of corallivorous gastropods as the coal predator --- p.141 / Chapter 4.2.3 --- Monthly monitoring of permanent quadrat --- p.142 / Chapter 4.2.4 --- Data and statistical analysis --- p.144 / Chapter 4.3 --- Results --- p.145 / Chapter 4.3.1 --- Species of corallivorous gastropods in Tung Ping Chau --- p.145 / Chapter 4.3.2 --- Feeding behavior of corallivorous gastropods in Tung Ping Chau --- p.146 / Chapter 4.3.3 --- Density of corallivorous gastropods --- p.147 / Chapter 4.3.3.1 --- Monthly change in density of corallivorous gastropods --- p.147 / Chapter 4.3.3.2 --- Correlation between gastropod density and temperature --- p.149 / Chapter 4.3.4 --- Cumulative percentage of area of feeding scar over time --- p.149 / Chapter 4.3.5 --- Monthly percentage change in the areas of feeding scar --- p.152 / Chapter 4.3.5.1 --- Monthly percentage change in the areas of feedling scar due to predation by Cronia margariticola and Drupella rugosa --- p.152 / Chapter 4.3.5.2 --- Correlation between gastropod density and monthly percentage change in area of scar --- p.153 / Chapter 4.3.5.3 --- Correlation between temperature and monthly percentage in area of the feeding scar --- p.154 / Chapter 4.3.6 --- Rate of predation --- p.154 / Chapter 4.3.6.1 --- Rate of predation by the corallivorous gastropods --- p.154 / Chapter 4.3.6.2 --- "Correlation between rate of predation, gastropod density and seawater temperature" --- p.155 / Chapter 4.3.7 --- Population size structure of the corallivorous gastropods --- p.156 / Chapter 4.3.7.1 --- Population size structure of Cronia margariticola --- p.156 / Chapter 4.3.7.2 --- Population size structure of Drupella rugosa --- p.158 / Chapter 4.4 --- Discussion --- p.159 / Chapter 4.4.1 --- Feeding behaviours of corallivorous gastropods --- p.159 / Chapter 4.4.2 --- Density of corallivorous gastropods --- p.162 / Chapter 4.4.3 --- Cumulative percentage of area of feeding scar --- p.170 / Chapter 4.4.4 --- Monthly percentage change of area of feeding scar --- p.173 / Chapter 4.4.5 --- Rate of predation --- p.175 / Chapter 4.4.6 --- Size structure of population size --- p.178 / Chapter 4.4.7 --- Predatory pressure from corallivorous gastropods in Tung Ping Chau --- p.185 / Chapter Chapter Five --- Summary and Perspectives --- p.207 / References --- p.214

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_324463
Date January 2003
ContributorsChoi, Mei Mei., Chinese University of Hong Kong Graduate School. Division of Biology.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xvi, 236 leaves : ill. (some col.) ; 30 cm.
CoverageChina, Hong Kong, China, Hong Kong, China, Hong Kong, Ping Chau (Hong Kong, China)
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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