SGER: Participation in Italian Ross Sea Expedition

这个SGER提案是马里兰大学环境科学中心霍恩角实验室和的里雅斯特大学以及意大利的里雅斯特海洋生物学实验室合作的结果。它是为了支持dk Stoecker和一名研究生在2002-2003年南部夏季参加意大利罗斯海探险。最近开发的用于研究温带、沿海形成水华的藻类的繁殖技术和种群动态的技术将应用于罗斯海的极地原生生物。这次合作提供了一个巨大的机会，可以比较微型浮游动物在温带和极地系统的水华动态中放牧的作用，确定极地微型浮游生物是否具有外细胞蛋白酶活性，并从罗斯海获得光合纤毛虫的样本，Mesodinium rubrum及其“猎物”，用于分子分析。此外，这次航行将有助于极地科学研究生的教育，并为他的论文提供材料。它还将有助于贸发会议与意大利的里雅斯特海洋生物实验室之间的继续合作。

This SGER proposal is an outgrowth of collaboration between Horn Point Laboratory,University of Maryland Center for Environmental Science and the University of Trieste andthe Laboratory for Marine Biology, Trieste, Italy. It is to support the participation ofDK Stoecker and a graduate student in an Italian expedition to the Ross Sea during theaustral summer 2002-2003. Techniques which have been recently developed to investigatethe autecology and population dynamics of temperate, coastal bloom-forming algae will beapplied to polar protists from the Ross Sea. This collaboration presents a tremendousopportunity to compare the role of microzooplankton grazing in bloom dynamics in temperateand polar systems, determine if polar microplankton have ectocellular protease activityand to obtain samples of the photosynthetic ciliate, Mesodinium rubrum and its crytophytealgal "prey" from the Ross Sea for molecular analysis. Futhermore, the cruise wouldcontribute to the education of a graduate student in polar science and provide materialfor his dissertation. It would also contribute to continued collaboration between UMCESand the Marine Biological Laboratory in Trieste, Italy.