Collaborative Research: The Role of Wind-Driven Transport in Shelf-Productivity: Zooplankton Population Maintenance, Grazing, and Reproductive Response

合作研究：风力运输在货架生产力中的作用：浮游动物种群维持、放牧和繁殖反应

• 批准号: 0624544
• 负责人: Stephen Bollens
• 金额: --
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-11-11 至 2007-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0624544&HistoricalAwards=false
• 关键词: Collaborative; Research; Role; Wind; Driven

9908072BollensThis collaborative project, involving eleven investigators at five institutions is under the auspices of the Coastal Ocean Processes (CoOP) Program, and it focuses on the role of wind-driven transport in shelf productivity. Wind-driven continental shelves represent a paradox in that while they are characterized by high productivity due to upward fluxes of nutrients into the euphotic zone, wind forcing also represents negative physical and biological controls via offshore transport and deep (light-limiting) mixing of primary producers. Specifically, upwelling ecosystems along mid-latitude eastern boundaries of the ocean are well known for wind forcing and high productivity at lower trophic levels, with concomitant transport of near-surface plankton offshore. The group of researchers will conduct an interdisciplinary study to examine the roles that wind-driven transport plays in productivity over the shelf off northern California. Research will focus on key processes to explain the integrated functioning of highly productive planktonic systems over eastern boundary shelves in response to wind-driven transport, and specifically, to determine the sensitivity of these processes to both wind intensity and the time scales of wind forcing. Work will also identify specific features of the nutrient-phytoplankton-zooplankton (NPZ) food web that lead to greater or lesser secondary productivity in response to changes in wind forcing.To implement the study, part of the work will examine the 3-dimensional wind-driven circulation of water concurrently with size-structured distributions of phytoplankton and zooplankton species. Other efforts will study the key physical and biological processes that control primary production, zooplankton population responses, and offshore transport of plankton and nutrients over the strongly wind-driven shelf and slope off Bodega Bay. An integrated sampling scheme coupled with appropriate physical-biological models designed to synthesize and guide the fieldwork has been developed. The fieldwork will be comprised of fixed station time-series, ship surveys, drifter releases, and satellite remote sensing. There are two parts to the fieldwork - one focusing on the mooring array off Bodega Bay, and a second involving ship surveys and drifters. The mooring array places emphasis on eulerian measurements of cross-shelf circulation, aiming also to resolve up/downwelling fluxes. The surveys and drifters place emphasis on transformations in the water column, specifically the maturation of upwelled water as it moves away from the mooring site. By combining these data with the synoptic measurements available from satellites and the integrative aspects of the modeling, the project seeks to address all the important processes associated with wind-driven transport. This promises to unravel the paradox of how wind-driven transport supports high levels of productivity over eastern boundary shelf regions.This particular component of the study addresses the zooplankton component of the study -- the impact of both physical transport and primary production on key zooplankton organisms that are capable of either retaining productivity on the shelf or rapidly moving productivity to tertiary trophic levels. Both are key aspects of the overall efficiency and effectiveness of shelf trophic systems. To explore a team of investigators will determine the effects of wind-driven cross-margin transport on zooplankton distribution, behavior, diet and reproductive (numerical) response. The study will assess both direct (transport) and indirect (trophic) connections between zooplankton and the wind-dominated physical environment.

9908072Bolensthisthis的合作项目，涉及五个机构的11名调查人员的合作项目是在沿海海洋过程（COOP）计划的主持下，它的重点是风向运输在货架生产率中的作用。风驱动的大陆架子代表了悖论，因为它们的特征是由于营养成分向上引起的兴奋区域而具有很高的生产率，但风力强迫也代表了通过离岸运输和初级生产者的近海运输和深（限制性）混合的负面物理和生物控制。 具体而言，海洋中部纬度沿纬度的上升生态系统以较低的营养水平的风力强迫和高生产率而闻名，并随着近乎表面的浮游生物的运输。 一组研究人员将进行一项跨学科研究，以研究风向运输在北加利福尼亚州货架上生产力中发挥的作用。 研究将重点放在关键过程上，以解释东部边界货架上高生产力浮游系统的综合功能，以响应风向驱动的运输，特别是确定这些过程对风强度和风力强度的时间尺度的敏感性。工作还将确定营养素 - 苯丙基汤兰克顿（NPZ）食品网的特定特征，从而导致或多或少的次要生产力，以响应风力强迫的变化，因此，一部分工作将研究3维风驱动的水循环，这些水循环与植物大小结构的植物分布相关的植物分布和Zooplankton and Zooplankton物种。 其他努力将研究控制初级生产，浮游动物种群反应以及浮游生物和营养物质在强烈风向的架子上的近海运输以及在Bodega湾远离强烈风向的山坡上的关键物理和生物学过程。一个集成的采样方案，结合了旨在合成和指导现场工作的适当的物理生物学模型。 现场工作将由固定的车站时间序列，船舶调查，漂流者发行和卫星遥感组成。 野外工作有两个部分 - 一个专注于Bodega Bay附近的系泊阵列，第二个涉及船舶调查和漂移者。 系泊阵列重点是欧拉尔的跨架循环的测量，旨在解决向上/下降的通量。调查和漂移者强调水柱中的转化，特别是当水远离系泊地点时上升的水的成熟。通过将这些数据与卫星可获得的概要测量和建模的综合方面相结合，该项目旨在解决与风驱动运输相关的所有重要过程。 这有望揭示风向运输如何支持东部边界架地区高水平的生产率的悖论。该研究的特殊组成部分解决了研究的浮游生物组成部分 - 物理运输和初级生产对浮游生物的关键浮游生物的影响，这些有能力使生产力对生产力或快速移动生产力to tertiary tertery terters terters terters terters terters terters terters terters terters terters terters terters terters terterics terterc。 两者都是货架营养系统总体效率和有效性的关键方面。 为了探索一个研究人员的团队，将确定风向跨微边的运输对浮游动物分布，行为，饮食和生殖（数值）响应的影响。 该研究将评估浮游动物与风向主导的物理环境之间的直接（运输）和间接（营养）连接。