U.S.-Czech Republic Biological Oceanography Research on Photoacclimation in Phytoplankton for Remote Sensing Applications

INT 9902240美国-罗格斯大学、新泽西州立大学的迈克尔·贝斯菲尔德和捷克科学院微生物学研究所的翁德雷杰·普拉希尔之间的捷克研究项目，以浮游植物响应生长条件变化的光适应策略为特征。研究人员打算在营养限制条件下和垂直混合水柱内的实验室状态下采用可变和恒定的辐照度方案。 他们还将利用一系列遥感技术，并推断调查结果，以建立一个有助于初级生产力建模的数据集。 美国--捷克团队在浮游植物生理学和生产力建模方面的互补专业知识得益于捷克合作伙伴与同事英国海洋生物协会的Richard Geider的平行合作。具体而言，结果应显示初级生产力对光抑制的敏感性以及可变荧光参数与光合作用和生长的总体速率之间的关系。该综合数据库将有助于对海洋监测感兴趣的各种生态学家和藻类生理学家。如果成功，这将改善浮游植物生产力模型中关键生物变量的参数化，从而使全球模型在解释卫星观测到的世界海洋叶绿素场方面更加可靠。这个生物海洋学的国际项目实现了促进科学知识的计划目标，使美国和中欧的专家能够联合收割机互补人才，并在共同感兴趣和能力强的领域共享研究资源。

INT 9902240BehrenfeldThis U.S.-Czech research project between Michael Behrenfeld of Rutgers, the State University of New Jersey, and Ondrej Prasil of the Institute of Microbiology, Czech Academy of Sciences, features characterization of photoacclimation strategies employed by phytoplankton in response to changes in growth conditions. The researchers intend to employ variable and constant irradiance regimes in lab states under nutrient limiting conditions and within a vertically mixing water column. They will also draw upon an array of remote sensing technology and extrapolate findings to build a data set useful in primary productivity modeling. The U.S.-Czech team's complementary expertise in phytoplankton physiology and productivity modeling benefits from the Czech partner's parallel collaboration with colleague, Richard Geider of the Marine Biological Association of the U.K. Specifically, results should show susceptibility of primary productivity to photoinhibition and the relationship between variable fluorescence parameters and overall rates of photosynthesis and growth. The consolidated database would be useful to a variety of ecologists and algal physiologists who have interest in ocean monitoring. If successful, this should improve parameterization of key biological variables in phytoplankton productivity models thereby making global models more reliable for interpreting satellite observed chlorophyll fields in world oceans. This international project in biological oceanography fulfills the program objective of advancing scientific knowledge by enabling experts in the Untied States and Central Europe to combine complementary talents and share research resources in areas of strong mutual interest and competence.