海州湾人工鱼礁区浮游植物与环境因子关系的研究

The research of relationships between phytoplankton and environmental factors in artificial reef area of Haizhou Bay

摘要:

于2008年对海州湾人工鱼礁区进行了3个航次的理化因子和生物资源调查，应用CANOCO4.5软件对获得的浮游植物数据和环境因子数据进行典范对应分析（canonical correspondence analysis），作出物种与环境因子关系的二维排序图。根据环境因子与排序轴的相关系数，认为影响这一海区浮游植物分布的主要环境因子依次为总无机氮、水温和透明度。主要浮游植物优势种牟勒氏角毛藻（Chaetoceros muelleri）和浮动弯角藻（Eucampia zoodiacus）的分布与磷酸盐密切相关，这些优势种在鱼礁区和对照区数量上的差异导致了鱼礁区浮游植物数量要高于对照区。

Abstract:

By using canonical correspondence analysis(CCA),this paper studied the relationship between phytoplankton species and its environmental factors. The speciesenvironment biplots were drawn based on the result of CCA. The result showed that total inorganic nitrogen, water temperature and transparency were the most important factors influencing the distribution of phytoplankton species. The distribution of main dominant phytoplankton species Chaetoceros muelleri and Eucompia zoodiacus correlated strongly with phosphate. CCA can be a useful tool to understand the spatial distribution of phytoplankton species in marine ecosystems.