刺尾纺锤水蚤(AcartiaspinicaudaGiesbrecht1889)和太平洋纺锤水蚤（A.pacificaSteuer1915）是我国近岸、河口区的重要浮游桡足类之一，常成为海区的优势种。这两种纺锤水蚤的亲缘关系，过渡类型，系统分类地位，各地理种群的遗传差异与分化等等生物学和生态学问题依然迷惑不解。本文根据纺锤水蚤线粒体DNACOI基因片段和16SrRNA基因片段序列信息，分析了纺锤水蚤的遗传多样性，遗传结构和特点，基因流模式；探讨了两种纺锤水蚤及其过渡类型的分类地位，不同地理种群之间遗传差异以及在不同环境条件下种群分化的遗传学证据，探讨其生存策略等有关生态适应和生态进化的问题，为纺...Acartia spinicauda Giesbrecht 1889 and Acartia pacifica Steuer 1915 are the highly-abundant, widely-distributed, and characteristically estuarine holoplanktonic calanoid copepod in China sea, they had described from several estuaries. We have little knowledge on the significant problems as follow as the evolution relationship of these two Acartia species, taxonomic status of their intermediate for...学位：理学硕士院系专业：海洋与环境学院海洋学系_海洋生物学学号：S20042702
