EMPIRICAL RELATIONSHIPS BETWEEN BACTERIAL ABUNDANCE AND CHLOROPHYLL CONCENTRATION IN FRESH AND MARINE WATERS
EMPIRICAL RELATIONSHIPS BETWEEN BACTERIAL ABUNDANCE AND CHLOROPHYLL CONCENTRATION IN FRESH AND MARINE WATERS
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DOI：
10.1139/f84-118
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发表时间：
1984-01-01
影响因子：
2.4
通讯作者：
KALFF, J
中科院分区：
文献类型：
--
作者：
BIRD, DF;KALFF, J
在淡水和海水中，细菌丰度与叶绿素[叶绿素a]浓度之间发现了一种强烈的、正相关的经验关系。淡水和海水的线性回归方程在统计学上无显著差异。总体方程为：log AODC = 5.867 + 0.776 log chl a，r² = 0.88，其中AODC（吖啶橙直接计数）是每毫升细菌的数量，chl a是每升叶绿素a的微克数。浮游细菌和藻类在湖泊和海洋中紧密相连。回归线的斜率表明，随着营养物质浓度的增加，细菌数量的增长不如藻类生物量增长得快。如果在不同系统之间，单位细菌生物量的细菌生产力随着总细菌生物量的增加而增加，那么细菌数量这种不成比例的较小增长并不一定意味着在营养物质可利用性增加的情况下细菌在湖泊新陈代谢中的作用变小。
A strong, positive empirical relationship was found between bacterial abundance and cholorophyll [chl a] concentration in fresh and marine waters. Freshwater and marine linear regression equations are statistically indistinguishable. The overall equation is log AODC = 5.867 + 0.776 log chl a, r2 = 0.88, where AODC (acridine orange direct count) is the number of bacteria per ml and chl a is micrograms of chlorophyll a per l. Planktonic bacteria and algae are tightly linked in lakes and the sea. The slope of the regression line, shows that bacterial numbers do not increase as rapidly as algal biomass with an increase in nutrient concentration. This disproportionately smaller increase in bacterial numbers need not signify a smaller role for bacteria in lake metabolism with increasing nutrient availability, if bacterial productivity per unit bacterial biomass increases as total bacterial biomass increases between systems.