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

罗格斯大学的Michael Behrenfeld、新泽西州立大学的Michael Behrenfeld和捷克科学院微生物研究所的Ondrej Prasil共同开展了一个美国和捷克的研究项目，研究浮游植物在适应生长条件变化时所采用的光适应策略。研究人员打算在实验室状态下，在营养限制条件下和垂直混合水柱中采用可变和恒定的辐照度制度。他们还将利用一系列遥感技术和推断结果，建立一套对初级生产力模型有用的数据集。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受益于捷克合作伙伴与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总体速率之间的关系。这个综合数据库对对海洋监测感兴趣的生态学家和藻类生理学家都很有用。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，从而使全球模型更可靠地解释卫星观测到的世界海洋叶绿素场。这个国际生物海洋学项目通过使美国和中欧的专家能够在共同感兴趣和能力强的领域结合互补的人才和共享研究资源，实现了推进科学知识的计划目标。

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.