Sin, Yung Wa. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 105-112). / Abstracts in English and Chinese. / Abstract --- p.i / Abstract (in Chinese) --- p.iii / Acknowledgements --- p.v / Contents --- p.vi / List of tables --- p.x / List of figures --- p.xii / Chapter Chapter 1 --- General introduction / Chapter 1.1 --- Introduction to loliginid squids --- p.1 / Chapter 1.1.1 --- Cephalopod taxonomy and fishery --- p.1 / Chapter 1.1.2 --- Family Loliginidae --- p.2 / Chapter 1.1.3 --- Genus Uroteuthis --- p.4 / Chapter 1.1.4 --- Uroteuthis chinensis and Uroteuthis edulis --- p.5 / Chapter 1.2 --- Introduction to morphological differentiation methods in cephalopods --- p.11 / Chapter 1.3 --- Introduction to genetic differentiation methods --- p.13 / Chapter 1.3.1 --- Molecular markers --- p.13 / Chapter 1.3.1.1 --- Animal mitochondrial DNA --- p.13 / Chapter 1.3.1.2 --- Microsatellite DNA --- p.14 / Chapter 1.3.2 --- Systematic studies of cephalopods using molecular markers --- p.15 / Chapter 1.3.3 --- Population genetic studies of cephalopods using molecular markers --- p.18 / Chapter 1.4 --- Objectives --- p.19 / Chapter Chapter 2 --- Morphological differentiation of Uroteuthis chinensis and Uroteuthis edulis --- p.20 / Chapter 2.1 --- Introduction --- p.20 / Chapter 2.2 --- Materials and methods --- p.21 / Chapter 2.2.1 --- Specimens --- p.21 / Chapter 2.2.2 --- Morphometric characters --- p.22 / Chapter 2.2.3 --- Multivariate analysis of data --- p.23 / Chapter 2.3 --- Results --- p.24 / Chapter 2.4 --- Discussion --- p.54 / Chapter Chapter 3 --- Genetic differentiation of Uroteuthis chinensis and Uroteuthis edulis --- p.57 / Chapter 3.1 --- Introduction --- p.57 / Chapter 3.2 --- Materials and methods --- p.58 / Chapter 3.2.1 --- Collection of specimens --- p.58 / Chapter 3.2.2 --- "DNA extraction, PCR amplification and sequencing" --- p.59 / Chapter 3.2.3 --- Sequence data analysis --- p.60 / Chapter 3.3 --- Results --- p.62 / Chapter 3.3.1 --- Sequence data set --- p.62 / Chapter 3.3.2 --- Phylogenetic analysis --- p.63 / Chapter 3.3.3 --- Sequence divergence within species --- p.67 / Chapter 3.4 --- Discussion --- p.89 / Chapter 3.4.1 --- Genetic differentiation of U. chinensis and U edulis --- p.89 / Chapter 3.4.2 --- Population structuring within U. chinensis and U edulis --- p.91 / Chapter Chapter 4 --- Isolation of microsatellite loci for U. chinensis --- p.94 / Chapter 4.1 --- Introduction --- p.94 / Chapter 4.2 --- Materials and methods --- p.95 / Chapter 4.3 --- Results --- p.97 / Chapter 4.4 --- Discussion --- p.102 / Chapter Chapter 5 --- Conclusion --- p.103 / References --- p.105 / Appendix 1: Aligned COI sequences used in this study --- p.113 / Appendix 2: Aligned 16S rRNA sequences used in this study --- p.122