论文部分内容阅读
对胶州湾和邻近海域表层沉积中颗石藻Gephyrocapsaoceanica的分布进行初步研究 ,并提出胶州湾内这个种的分布模式。研究结果表明 ,该种在胶州湾和邻近海域表层沉积颗石藻组合中占绝对优势 ,几个从属种类Braarodosphaerabigelowii,Syracosphaerahistrica ,S .lamina和Acantholithussp .等 ,在一些样品中稀少。在胶州湾 ,依据Gephyrocapsaoceanica丰度的变化 ,自岸向海可以划分三个分布带 :向岸常见带、浅水丰富带和深水富集带。这一分布模式与海湾水下地貌有密切的关系。在湾外的近岸海域 ,该种的分布呈现出与湾内相似的特征
The distribution of ciliate Gephyrocapsaoceanica in the surface sediments of Jiaozhou Bay and its adjacent waters was preliminary studied and the distribution pattern of this species in Jiaozhou Bay was proposed. The results show that this species is absolutely dominant in the surface sedimentary coccolith algae assemblage in the Jiaozhou Bay and adjacent waters. Several subordinate species, Braarodosphaerabigelowii, Syracosphaerahistrica, S.lamina and Acantholithussp., Are rare in some samples. In Jiaozhou Bay, according to the abundance of Gephyrocapsaoceanica, there are three distribution zones from shore to sea: common shore zone, shallow water zone and deep water zone. This distribution pattern is closely related to the underwater landscape of the Gulf. In off-shore offshore waters, the distribution of this species presents similar characteristics as in the bay