Mortality of zooplankton in lake ecosystems and its contribution to vertical carbon fluxes (ZooFlux)

湖泊生态系统中浮游动物的死亡率及其对垂直碳通量的贡献(ZooFlux)

基本信息

项目摘要

The objective of the proposed study is to quantifying the role of dead zooplankton (carcasses) in the carbon cycle of aquatic ecosystems. Thereby, we will test the hypothesis that microbial degradation of carcasses during their sinking facilitates (primes) the degradation of more refractory organic matter. The project is part of the joint effort of a research team from Germany and Russia. In order to estimate the contribution of zooplankton carcasses to the carbon cycle, we combine field observations, mesocosm and laboratory experiments as well as modeling. In situ estimations of the zooplankton mortality and sinking rates by sediment traps in the lakes will be accompanied by measurements of turbulent mixing conditions across the stratified water column using modern hydrodynamic field techniques. Laboratory experiments will quantify microbial colonization and degradation rates of zooplankton carcasses. Both field and laboratory data will be used for an advanced model predicting retention time of carcasses in the water column and their contribution to the carbon cycle. Various model scenarios will focus on the role of environmental factors for settling and degradation of dead zooplankton and on potential changes due to climate-driven hypolimnion warming in lakes.
拟议研究的目的是量化死亡浮游动物(尸体)在水生生态系统碳循环中的作用。因此,我们将测试的假设,即微生物降解的尸体在其下沉促进(总理)更难降解的有机物。该项目是来自德国和俄罗斯的研究小组共同努力的一部分。为了估计浮游动物尸体对碳循环的贡献,我们结合联合收割机现场观测,围隔和实验室实验以及模拟。在现场估计浮游动物的死亡率和沉积物陷阱在湖泊中的下沉率将伴随着使用现代水动力场技术的分层水柱的湍流混合条件的测量。实验室实验将量化浮游动物尸体的微生物定植和降解率。现场和实验室数据将用于一个先进的模型,预测尸体在水柱中的停留时间及其对碳循环的贡献。各种模型设想方案将侧重于环境因素对浮游动物尸体沉降和降解的作用,以及气候驱动的湖泊低水层变暖可能造成的变化。

项目成果

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Professor Dr. Hans-Peter Grossart其他文献

Professor Dr. Hans-Peter Grossart的其他文献

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{{ truncateString('Professor Dr. Hans-Peter Grossart', 18)}}的其他基金

Ecological role of fungal parasites on benthic diatoms of polar coastal waters
极地沿海水域底栖硅藻真菌寄生虫的生态作用
  • 批准号:
    424170377
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Alternative states of a simple predator-prey system induced by competition between small edible and large inedible algae and fungal parasitism (APPS)
由小型可食用藻类和大型不可食用藻类之间的竞争以及真菌寄生引起的简单捕食者-猎物系统的替代状态(APPS)
  • 批准号:
    394716440
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Comparing phenotypic plasticity in bacterial prey traits and ecological consequences by using specialist vs. generalist strains and organic aggregates as model systems
通过使用专业菌株和通才菌株和有机聚集体作为模型系统,比较细菌猎物特征的表型可塑性和生态后果
  • 批准号:
    257346203
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Evaluation and quantification of microbial degradation of allochthonous organic matter by "priming" (MicroPrime)
通过“引发”对异地有机物的微生物降解进行评估和定量(MicroPrime)
  • 批准号:
    256575941
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Revising the methane cycling in lakes: sources and sinks in two German lakes with specific consideration of methane accumulation in oxic waters
修改湖泊中的甲烷循环:德国两个湖泊的源和汇,特别考虑含氧水域中的甲烷积累
  • 批准号:
    241479293
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Bacteria-zooplankton interactions: a key to understanding bacterial dynamics and biogeochemical processes in lakes?
细菌-浮游动物相互作用:了解湖泊细菌动力学和生物地球化学过程的关键?
  • 批准号:
    201319348
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Functional role and ecotype divergence in freshwater ultramicrobacteria
淡水超微生物的功能作用和生态型差异
  • 批准号:
    163678447
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Auswirkung interner Wellen auf mikrobielle Habitate kund Aktivitäten sowie den Stoffaustausch an der Wasser-Sediment-Grenzschicht des Stechlinsees
内波对施特奇林湖水-沉积物界面微生物栖息地、活动及物质交换的影响
  • 批准号:
    75711677
  • 财政年份:
    2008
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Veränderungen in der Struktur und Funktion pelagischer Bakterien während und nach der Restauration des Tiefwarensees
蒂夫瓦伦湖恢复期间和恢复后中上层细菌结构和功能的变化
  • 批准号:
    39400205
  • 财政年份:
    2007
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Effects of climate variability on interactions between cyanobacteria and associated microheterotrophs-consequences for development of toxic cyanobacterial blooms
气候变化对蓝藻和相关微型异养生物之间相互作用的影响——对有毒蓝藻水华发展的影响
  • 批准号:
    28750711
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes

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Within-lake variation in zooplankton road salt tolerance in a salt-impacted freshwater Laurentian la
受盐影响的淡水劳伦湖中浮游动物道路耐盐性的湖内变化
  • 批准号:
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DNA-Metabarcoding of phyto- and zooplankton in East African lake sediments as proxies for past environmental perturbation
东非湖泊沉积物中浮游植物和浮游动物的 DNA 宏条形码作为过去环境扰动的代表
  • 批准号:
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Acoustic observation of the spatial and temporal distribution of zooplankton in Lake Constance: The driving mechanisms and ecological consequences of patchiness
博登湖浮游动物时空分布的声学观测:斑块化的驱动机制和生态后果
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    2005
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Littoral ecosystems of tropical lowland lakes : their structure and response to water level change
热带低地湖泊沿岸生态系统:其结构和对水位变化的响应
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    15405001
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    2003
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Experimental analysis on the impact of climatic warming on lake plankton communities.
气候变暖对湖泊浮游生物群落影响的实验分析
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Reconstruction of the past plankton community in Lake Biwa using Daphnia resting eggs
利用水蚤休眠卵重建琵琶湖过去的浮游生物群落
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Ecological Paradox in the bloom formation of mixotrophic algae
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    1998
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Collaborative Research: Effects of Stetson Quantity and Quality on Zooplankton in a Mesotrophic Lake
合作研究:斯泰森数量和质量对中营养湖中浮游动物的影响
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    9707641
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    1997
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Collaborative Research: Effects of Seston Quantity and Quality on Zooplankton in a Mesotrophic Lake
合作研究:Seston数量和质量对中营养湖中浮游动物的影响
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    9708330
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    1997
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Secondary biological pump driven by food web interactions : A case study in Lake Biwa for gloval environmental issues
由食物网相互作用驱动的二次生物泵:琵琶湖全球环境问题的案例研究
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    08308031
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    1996
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    Grant-in-Aid for Scientific Research (A)
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