Match / mismatch of zooplankton- phytoplankton interactions, based on existing long-term information in the North Sea

根据北海现有的长期信息，浮游动物-浮游植物相互作用的匹配/不匹配

• 批准号: 29590736
• 负责人: Privatdozent Dr. Jan Alfred Freund
• 金额: --
• 依托单位: Institut für Chemie und Biologie des Meeres (ICBM)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/29590736?language=en
• 关键词: Match; mismatch; zooplankton; phytoplankton; interactions

Phytoplankton succession and the concurrence of Zooplankton are still poorly understood particularly in marine environments. We are still very unsure as to how climate change affects these organisms and their interactions. For the North Sea, however, we have the means to change this by analysing two existing databases, one with high temporal resolution and one with high spatial resolution, the Helgoland Roads (HR) and Continuous Plankton Recorder (CPR) databases, respectively. We will use a diverse array of methods (from standard linear statistics through to advanced multivariate data analysis based on the method of symbolic dynamics) to differentiate patterns of succession in the North Sea. We will determine the main steering processes e.g. grazing, light, nutrients, hydrography in these patterns and key events such as fresh and saltwater intrusions, or storms, which either drive or trigger timing of organisms. To search and identify such driving or trigger mechanisms within data we will employ the recently introduced method of bloom triggered averaging. We will investigate changes in the key events related to climate anomalies and global warming. Using this backdrop as a basis the co-occurrence of pelagic organisms and zooplankton/phytoplankton interactions will be determined and organism match-mismatch investigated related to climate shifts over the last 40 years.

浮游植物的演替和浮游动物的共存仍然知之甚少，特别是在海洋环境中。我们仍然非常不确定气候变化如何影响这些生物及其相互作用。然而，对于北海，我们有办法通过分析两个现有的数据库来改变这一点，一个具有高时间分辨率，一个具有高空间分辨率，分别是Helgoland Roads（HR）和Continuous Plankton Recorder（CPR）数据库。我们将使用各种方法（从标准的线性统计到基于符号动力学方法的高级多元数据分析）来区分北海的演替模式。我们将确定主要的转向过程，如放牧，光照，营养，水文在这些模式和关键事件，如淡水和盐水入侵，或风暴，这要么驱动或触发生物体的时间。为了在数据中搜索和识别这种驱动或触发机制，我们将采用最近引入的布隆触发平均方法。我们将研究与气候异常和全球变暖有关的关键事件的变化。利用这一背景作为基础，将确定浮游生物和浮游动物/浮游植物相互作用的共存情况，并调查过去40年来与气候变化有关的生物匹配-不匹配情况。