Zooplankton in highly heterogenous estuarine ecosystems: ecological and evolutionary processes and interconnectivity

高度异质性河口生态系统中的浮游动物:生态和进化过程以及互连性

基本信息

  • 批准号:
    RGPIN-2019-05724
  • 负责人:
  • 金额:
    $ 3.42万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2021
  • 资助国家:
    加拿大
  • 起止时间:
    2021-01-01 至 2022-12-31
  • 项目状态:
    已结题

项目摘要

Estuarine transition zones, where freshwater mixes with saltwater, are critical ecosystems for entire river systems worldwide. These ecosystems have a high ecological value in terms of biological productivity which is strongly driven by physical properties such as estuarine re-circulation, tidal mixing and freshwater discharge. The St. Lawrence Estuary, part of Canada's natural heritage, is the important artery between the continent and the Atlantic Ocean. Ecologically, the St. Lawrence estuarine transition zone represents important retention and nursery zones for crustaceans and ecologically and commercially important fishes. The high productivity and spatiotemporal heterogeneity of this highly energetic and complex estuarine ecosystem makes it an ideal site to study the influence of connectivity on trophic relationships and biological processes. Even if it is recognized that population and community dynamics are regulated by trophic interactions and transport processes that determine environmental spatial complexity and connectivity, the overall ecosystem significance of these processes in estuaries is not well understood. The goal of my research program is to significantly advance our understanding of the main mechanisms controlling the ecological resilience of zooplankton key species in a highly variable environment. I aim to establish how environmental variability acts on key biological processes involved in production and consumption of zooplankton, that most definitely impact zooplankton population dynamics throughout the estuarine seascape. My research program is based on a food-web seascape approach. We will acquire and combine novel and crucial scientific knowledge on eco-physiology, genetic diversity, trophodynamics and connectivity throughout the estuarine seascape as primary drivers influencing zooplankton dynamics. This knowledge is essential to complement our understanding of the trophic turnover from primary production to tertiary trophic levels, as zooplankton often represents the nutritional basis for upper trophic levels (e.g. fish). We will focus on the most important estuarine species, such as copepods, mysids and fish larvae to disentangle the relationships between spatio-temporal production patterns, plasticity, genetic diversity and trophic coupling of the dominant copepod species complex Eurytemora affinis and its mysid and fish (smelt, striped bass) predators. This research program will significantly advance our scientific comprehension of zooplankton productivity patterns, as this knowledge is of crucial relevance to the conservation and sustainable utilization of marine resources and ecosystem health in an ecosystem-based management approach.
河口过渡区是淡水与盐水混合的地方,是全世界整个河流系统的关键生态系统。这些生态系统在生物生产力方面具有很高的生态价值,而生物生产力是由河口再循环、潮汐混合和淡水排放等物理特性强烈驱动的。圣劳伦斯河口是加拿大自然遗产的一部分,是连接大陆和大西洋的重要动脉。在生态学上,圣劳伦斯河口过渡区是甲壳类动物和生态和商业上重要鱼类的重要保留区和育苗区。这种高能量和复杂的河口生态系统的高生产力和时空异质性,使其成为一个理想的网站,研究的营养关系和生物过程的连接性的影响。即使人们认识到,人口和社区动态的营养相互作用和运输过程,确定环境的空间复杂性和连通性进行调节,这些过程在河口的整体生态系统的意义还没有得到很好的理解。 我的研究计划的目标是显着推进我们的主要机制控制浮游动物关键物种的生态弹性在一个高度可变的环境的理解。我的目标是建立环境变化如何作用于浮游动物的生产和消费中涉及的关键生物过程,最肯定的影响整个河口海景浮游动物种群动态。我的研究计划是基于食物网海景的方法。我们将获得和联合收割机的生态生理学,遗传多样性,营养动力学和连接整个河口海景作为影响浮游动物动态的主要驱动力的新的和关键的科学知识。这方面的知识是必不可少的,以补充我们的理解从初级生产到三级营养级的营养周转,因为浮游动物往往代表了营养基础上的营养水平(如鱼类)。我们将专注于最重要的河口物种,如桡足类,糠虾和鱼苗解开时空生产模式,可塑性,遗传多样性和营养耦合的优势桡足类复合体Eurytemora affinis和它的糠虾和鱼类(胡瓜鱼,条纹鲈鱼)捕食者之间的关系。这项研究计划将大大提高我们对浮游动物生产力模式的科学理解,因为这些知识对于以生态系统为基础的管理方法中海洋资源和生态系统健康的保护和可持续利用至关重要。

项目成果

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Winkler, Gesche其他文献

Seasonal and large-scale spatial variability of the energy reserves and the feeding selectivity of Meganyctiphanes norvegica and Thysanoessa inermis in a Subarctic environment
  • DOI:
    10.1016/j.pocean.2019.102203
  • 发表时间:
    2019-12-01
  • 期刊:
  • 影响因子:
    4.1
  • 作者:
    Cabrol, Jory;Nadalini, Jean-Bruno;Winkler, Gesche
  • 通讯作者:
    Winkler, Gesche
Repeated Vessel Interactions and Climate- or Fishery-Driven Changes in Prey Density Limit Energy Acquisition by Foraging Blue Whales
  • DOI:
    10.3389/fmars.2020.00626
  • 发表时间:
    2020-08-03
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Guilpin, Marie;Lesage, Veronique;Winkler, Gesche
  • 通讯作者:
    Winkler, Gesche
Functional feeding response of Nordic and Arctic krill on natural phytoplankton and zooplankton
  • DOI:
    10.1093/plankt/fbaa012
  • 发表时间:
    2020-03-01
  • 期刊:
  • 影响因子:
    2.1
  • 作者:
    Cabrol, Jory;Fabre, Anais;Winkler, Gesche
  • 通讯作者:
    Winkler, Gesche
Heterogeneity within the native range:: population genetic analyses of sympatric invasive and noninvasive clades of the freshwater invading copepod Eurytemora affinis
  • DOI:
    10.1111/j.1365-294x.2007.03480.x
  • 发表时间:
    2008-01-01
  • 期刊:
  • 影响因子:
    4.9
  • 作者:
    Winkler, Gesche;Dodson, Julian J.;Lee, Carol Eunmi
  • 通讯作者:
    Lee, Carol Eunmi

Winkler, Gesche的其他文献

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{{ truncateString('Winkler, Gesche', 18)}}的其他基金

Zooplankton in highly heterogenous estuarine ecosystems: ecological and evolutionary processes and interconnectivity
高度异质性河口生态系统中的浮游动物:生态和进化过程以及互连性
  • 批准号:
    RGPIN-2019-05724
  • 财政年份:
    2022
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Discovery Grants Program - Individual
Zooplankton in highly heterogenous estuarine ecosystems: ecological and evolutionary processes and interconnectivity
高度异质性河口生态系统中的浮游动物:生态和进化过程以及互连性
  • 批准号:
    RGPIN-2019-05724
  • 财政年份:
    2020
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Discovery Grants Program - Individual
Zooplankton in highly heterogenous estuarine ecosystems: ecological and evolutionary processes and interconnectivity
高度异质性河口生态系统中的浮游动物:生态和进化过程以及互连性
  • 批准号:
    RGPIN-2019-05724
  • 财政年份:
    2019
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Discovery Grants Program - Individual
Ecological processes influencing zooplankton productivity in highly dynamic estuarine transition zones
影响高度动态河口过渡区浮游动物生产力的生态过程
  • 批准号:
    RGPIN-2014-06228
  • 财政年份:
    2018
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Discovery Grants Program - Individual
Ecological processes influencing zooplankton productivity in highly dynamic estuarine transition zones
影响高度动态河口过渡区浮游动物生产力的生态过程
  • 批准号:
    RGPIN-2014-06228
  • 财政年份:
    2017
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Discovery Grants Program - Individual
Production and consumption of krill in the Gulf of St. Lawrence: toward an ecosystem-based stockassessment
圣劳伦斯湾磷虾的生产和消费:基于生态系统的库存评估
  • 批准号:
    447363-2013
  • 财政年份:
    2016
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Strategic Projects - Group
Ecological processes influencing zooplankton productivity in highly dynamic estuarine transition zones
影响高度动态河口过渡区浮游动物生产力的生态过程
  • 批准号:
    RGPIN-2014-06228
  • 财政年份:
    2016
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Discovery Grants Program - Individual
Ecological processes influencing zooplankton productivity in highly dynamic estuarine transition zones
影响高度动态河口过渡区浮游动物生产力的生态过程
  • 批准号:
    RGPIN-2014-06228
  • 财政年份:
    2015
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Discovery Grants Program - Individual
Production and consumption of krill in the Gulf of St. Lawrence: toward an ecosystem-based stock assessment
圣劳伦斯湾磷虾的生产和消费:基于生态系统的资源评估
  • 批准号:
    447363-2013
  • 财政年份:
    2014
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Strategic Projects - Group
Ecological processes influencing zooplankton productivity in highly dynamic estuarine transition zones
影响高度动态河口过渡区浮游动物生产力的生态过程
  • 批准号:
    RGPIN-2014-06228
  • 财政年份:
    2014
  • 资助金额:
    $ 3.42万
  • 项目类别:
    Discovery Grants Program - Individual

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