报告题目：Oyster feeding: a microscale dynamic feedback system and energy efficiency.

报告内容：Oysters are ideal candidate for ecological restoration because they can rapidly filter water and convert excessive nutrients and algae to production. However, it remains unclear how oysters accomplish their function. We employed a time-resolved Tomography Particle Image Velocimetry (PIV) to observe oyster feeding at microscale. A feedback system approach was used to examine how oyster responds to the ambient environmental changes and the consequential impact of their behavior on the ambient environment and their feeding at microscale. The subsequent feeding starts from location where water moves towards the shell, gradually expand to a larger region, and sustained by active feeding. This study highlights oyster feeding is a complex dynamic, but energy efficient process.

报告人：Prof essor Hongsheng Bi （马里兰大学，美国）

报告人介绍：

Hongsheng Bi received his Ph.D in biological oceanography from Louisiana State University in 2005. After a postdoc position at Oregon State University, he joined the University of Maryland Ctr for Environmental Science as an assistant professor in 2009 and associate professor in 2015.

Hongsheng deploys advanced optical imaging systems and high resolution sonar imaging systems to quantify the spatial distributions and overlap of plankton, forage fish, and jellyfish. He is particularly interested in understand jellyfish dynamics and their interactions with other trophic levels. Hongsheng’s group operate a towed zooplankton imaging system (PlanktonScope), two adaptive resolution imaging sonar (ARIS) systems, and a time-resolved Tomographic Particle Image Velocimetry at the Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science.

报告时间：2018年3月26日（周一）上午8:30

报告地点：3号楼416会议室

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