US-UK-Netherlands Cooperative Research: Relationships among Trophic Structure, Bioturbation and Organic Matter Preservation Across the Oxygen Minimum Zone on The Indus Margin

0227511莱文这项为期两年的美国-英国-荷兰合作奖涉及加州大学斯克里普斯海洋研究所的丽莎莱文，夏威夷大学的克雷格史密斯，爱丁堡大学的格雷格考伊，荷兰生态研究所的杰克米德尔堡和其他人。他们建议研究最低含氧区（OMZ）的生物和地球化学过程。 这些是极端和广泛分布的海洋环境和深海生境。拟议的研究涉及在印度河边缘进行研究航行，那里是OMZ与海底相交的地方。 通过沉积物取样，研究人员将研究低氧对食物网结构和动力学、沉积物地球化学和碳埋藏的影响。他们将利用稳定同位素、放射化学、地球化学和动物群测量方法，确定沿着海底断面生态系统功能和动物群适应性变化的特征。在季风和季风间期间，将在6个站点（100-2000米深）进行采样，采样条件从完全氧化到永久缺氧。 该项目利用了英国和荷兰的互补专长。 他们将进行大量的地球化学和生物学测量，并提供船的时间。 该合作将促进对OMZ生态学和有机物降解的理解。有机开放区提供了过去气候条件的现场实验室，因此可以提高预测全球气候变化对大陆边影响的能力。这笔款项包括美国调查人员在海洋研究船上的旅费和生活费，以及前往英国进行实验室分析的旅费。

0227511LevinThis two-year award for US-UK-Netherlands collaboration involves Lisa Levin of the University of California's Scripps Institution of Oceanography, Craig Smith of the University of Hawaii, Greg Cowie at the University of Edinburgh, Jack Middelburg of the Netherlands' Institute of Ecology and others. They propose to study biological and geochemical processes in oxygen minimum zones (OMZs). These are extreme and widely distributed ocean environments and deep-sea habitats. The proposed studies involve research cruises in the Indus Margin, where the OMZ intersects the sea floor. Through sediment sampling, the investigators will study impacts of low oxygen on food-web structure and dynamics, sediment geochemistry, and carbon burial. They will use stable-isotopic, radiochemical, biogeochemical and faunal measurements to characterize shifts in ecosystem functions and faunal adaptations along a seafloor transect. Sampling will take place at 6 stations (100-2000 m depth) ranging from fully oxic to permanently hypoxic conditions during monsoon and inter monsoon periods. The project takes advantage of British and Dutch complementary expertise. They will make numerous geochemical and biological measurements and provide the ship time. The collaboration will advance understanding of OMZ ecology and organic matter preservations. OMZs provide in situ laboratories of past climate conditions and as such, can enhance abilities to predict the impacts of global climate change on continental margins. These award covers travel funds and living expenses for the US investigators aboard the ocean research vessel and travel to the UK for laboratory analyses.