Collaborative Research: Site evaluations and background studies of interactions among fluid chemistry, physiology, and community ecology for Ridge 2000 Lau Basin Integrated Studies

合作研究：Ridge 2000 Lau Basin 综合研究中流体化学、生理学和群落生态学之间相互作用的现场评估和背景研究

• 批准号: 0241250
• 负责人: Stacy Kim
• 金额: $ 25.94万
• 依托单位: San Jose State University Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0241250&HistoricalAwards=false
• 关键词: Collaborative; Research; Site; evaluations; background

Two exploratory cruises to the East Lau Spreading Center (ELSC) will be undertaken to evaluate sites for selection as the Integrated Study Site (ISS) bull's eye for the Ridge 2000 program and to carry out studies necessary for further interdisciplinary research in this area. In addition to exploration and biological mapping, the sites will be carefully evaluated in terms of the relation between the chemistry of the diffuse flow vents and the macro-biology. This is especially important to do at this time because the only available water chemistry data for this region is from high temperature vents and indicates that Zn is very high and sulfide and methane are very low; this is not consistent with the abundant communities of sulfide and perhaps methane-oxidizing symbioses reported in diffuse flow. The reserach is complementary to, and will follow upon, the first two major ISS evaluation cruises outlined in the Implementation Plan for the site.The first of the two cruises will examine up to 6 sites identified by previous cruises and carry out detailed studies of 3 sites, with a goal of collecting data for finalizing selection of the bull's eye site for the Lau Basin ISS. The 2nd cruise will take place a year later, after selection of the ISS bull's eye, and will characterize the faunal biology and low temperature hydrothermal chemistry in the detail needed for planning the actual ISS experiments. The work for the first cruise includes mapping of the distribution of major community types, measurement of water chemistry in the major community types using an in situ analyzer supplemented with discrete samples, quantitative sampling of major community types, identification and phylogenetic analyses of component species, analyses to determine the reductant used by the symbionts in the major symbioses, measurements of physiological condition of major species in different vent areas, preliminary studies on maintenance of these species alive for further studies, and a variety of ancillary studies. The second cruise will be focused on a single site and studies will examine interactions between chemistry, physiology and ecology within each of the discrete assemblages of animals at the site as well as constructing very high resolution maps of the site, and carrying out experiments on living animals facilitated and guided by results from the first cruise.

将进行两次探索性巡游，前往东刘蔓延中心（ELSC），以评估作为综合研究地点（ISS）Bull对Ridge 2000计划的综合研究地点的评估，并进行该领域进一步跨学科研究所必需的研究。除了探索和生物学映射外，将根据弥漫流动通风孔的化学与宏观生物学之间的关系仔细评估这些位点。目前，这一点尤其重要，因为该区域的唯一可用的水化学数据来自高温通风孔，表明锌非常高，硫化物和甲烷非常低。这与硫化物的丰富群落以及弥散流中报道的甲烷氧化共生糖不一致。该研究是对该站点实施计划中概述的前两个主要ISS评估巡航的补充，并且将遵循。两次巡游中的第一个将检查多达6个由先前Cruises确定的站点，并对3个站点进行详细研究，并旨在收集lau Basin ISS公牛眼站的数据，以收集数据。第二次巡游将在选择ISS牛眼的眼睛后一年后进行，并将以计划实际ISS实验所需的细节来表征动物的生物学和低温水热化学。 首次巡航的工作包括映射主要社区类型的分布，使用补充离散样品的原位分析仪在主要社区类型中测量水化学，对主要社区类型的定量采样，组成物种的识别和系统发育分析的定量采样，分析的分析，确定在主要的伴侣中使用的分析，用于在主要的综合症状中使用，以相同的方式进行了多种多样的研究，该物种是对主要的，多种多样的，用于主要的综合性，是在主要的，是对主要的，是在主要的，多种多样的综合性，是针对性的，是在主要的，是在主要的，是在主要的，多种多样的综合性，用于综合性的研究。在维持这些物种以进行进一步研究和各种辅助研究时。第二次巡航将集中在一个站点上，研究将研究该地点每种动物的离散组合中的化学，生理和生态学之间的相互作用，并构建位点的高分辨率图，并在第一次巡游的结果中对活的动物进行实验，并在生存动物上进行实验。