海洋异养浮游细菌生物量及生产力的制约因素

Limiting Factors of Biomass and Production of Marine Heterotrophic Bacterioplankton

根据海洋异养浮游细菌既是分解者 ,又是生产者的特点 ,从生态学方面探讨了海洋异养浮游细菌在海洋生态系统中的作用、研究现状及细菌生物量和生产力的制约因素。认为具有重要生态学意义的海洋异养浮游细菌生物量和生产力的主要影响因素有溶解性有机碳的性质及含量、无机营养盐浓度、海水温度、微量金属元素 (如铁 )含量。

Heterotrophic bacterioplankton are decomposers of organic material and secondary producers in marine ecosystems. They are abundant and dynamic members of remobilization of organic carbon and regeneration of inorganic nutrients in marine environments. Heterotrophic bacterioplankton productions are believed to be limited by dissolved organic material,inorganic nitrogen, the temperature of water and the concentration of trace elements (e.g. iron). The grazing ratios of zooplankton are also important. The viruses may be important regulators of bacterioplankton biomass.