THE RELATIVE IMPORTANCE OF NANNOPLANKTON AND NETPLANKTON AS PRIMARY PRODUCERS IN TROPICAL OCEANIC AND NERITIC PHYTOPLANKTON COMMUNITIES1
THE RELATIVE IMPORTANCE OF NANNOPLANKTON AND NETPLANKTON AS PRIMARY PRODUCERS IN TROPICAL OCEANIC AND NERITIC PHYTOPLANKTON COMMUNITIES1
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DOI：
10.4319/lo.1971.16.4.0633
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发表时间：
1971-07
影响因子：
4.5
通讯作者：
T. Malone
中科院分区：
文献类型：
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作者：
T. Malone
在热带东太平洋和加勒比地区的各种浅海和海洋环境中测量了纳米浮游生物和网状浮游生物的初级生产力和常树作物。在所有研究环境中，纳米浮游生物是最重要的生产者，但浅海的浮游生物产量显著高于海洋（P = 0.05）。浅海网浮游生物与纳米浮游生物的平均生产力和叶绿素比值分别为0.50±0.14和0.62±0.22，显著高于海洋。浮游生物立地产量和生产力的相对水平与相应的初级生产力和整体立地产量水平没有系统的相关性。网状浮游生物和纳米浮游生物相对重要性的变化模式可以解释为浅海中与海洋相比，网状浮游生物的高生长速率和低放牧压力指数。
Nannoplankton and netplankton primary productivity and standing crop were measured in a wide variety of neritic and oceanic environments in the eastern tropical Pacific and Caribbean region. Nannoplankters were the most important producers in all the environments studied, but netplankton productivity was significantly (P = 0.05) higher in neritic than in oceanic waters. Mean neritic netplankton–nannoplankton productivity and chlorophyll ratios were 0.50 ± 0.14 and 0.62 ± 0.22 respectively, significantly higher than those observed in oceanic waters. Relative levels of netplankton standing crop and productivity were not systematically related to corresponding levels of primary productivity and standing crop as a whole. The patterns of variation in the relative importance of netplankton and nannoplankton could be accounted for by the high netplankton growth rates and low grazing pressure indices observed in neritic as compared to oceanic waters.