The 24th Luncheon Seminar: The productivity of the oligotrophic ocean from the perspective of nitrogen—community and specific taxon level

2021年12月8日中午，南海海洋资源利用国家重点实验室第二十四期午餐交流会在国重823会议室成功举办，本期午餐会以“从氮的角度看寡营养海洋的生产力：群落和特定类群水平”为主题进行分享与讨论。

On December 8, 2021, noon, the 24th luncheon seminar themed “The productivity of the oligotrophic ocean from the perspective of nitrogen—community and specific taxon level” was held in MRU Conference Room 823.

图：午餐会签到环节

Sign-in session

图：谭萼辉副研究员主持现场

Associate Research Fellow EHui Tan was presiding over the seminar

图：午餐会会议现场

The scene of the luncheon

谭萼辉副研究员主持了会议，主讲人徐敏副研究员从氮的角度切入，结合自己相关航次工作经历，介绍寡营养海洋生产力和不同类群浮游植物对生产力的贡献。着重于介绍初级生产力、新生产力、以及再生生产力三种生产力的概念以及相关信息。会上徐敏副研究员向大家播放了一段出海科考的视频，会场师生顿时被视频中的镜头给感染了。

The presenter, Associate Research Fellow Min Xu, introduced the oligotrophic marine productivity and the contribution of different phytoplankton taxa to productivity from the perspective of nitrogen. The presentation focused on the concepts of primary productivity, new productivity, and regenerative productivity as well as related information. During the seminar, Min Xu showed a video of her scientific research trip in the sea, and the teachers and students present were immediately immersed in the video.

图：主讲人徐敏副研究员分享交流

Associate Research Fellow Min Xu was giving a presentation

出海视频结束后主要是围绕哪些海洋浮游植物贡献生产力来开展，主讲人徐敏副研究员讲述了通过同位素标定+流式细胞分选+质谱定量不同类群浮游植物氮吸收利用的方法分析各群落新生产力的贡献占比。

After the video, Min Xu mainly talked about which marine phytoplankton contributed to the productivity. She introduced the method of “isotope labeling + flow cytometry + mass spectrometry” to quantify the nitrogen uptake and utilization of different phytoplankton groups.

随后现场的老师以及学生与主讲人徐敏副研究员就自己的学科、报告的课题和当前的疑问展开了深入的交流。本次午餐会在开展的过程中师生轻松愉快，不仅让大家更深入的认识彼此，相近研究领域的同学也和主讲人以及其他老师进行了有效的交流，大家获益匪浅。

Then the teachers and students present had an in-depth exchange with Min Xu about their own disciplines, the topics presented and some questions. The seminar was conducted in a relaxed and enjoyable manner, helping students in similar research fields have effective communication with the presenter and other teachers. All the attendees benefited greatly from this seminar.

图：师生提问与交流环节

Q & A session

参会的马归宜同学表示，在这次会议上最大的收获便是了解了更多关于海洋大循环的知识，老师播放出海做实验的那一段视频让他印象最深刻，因为在海上做实验很让人向往，在大海上一边做实验还能看到不同的风景。杜川军老师表示对于此次会议，最打动他的是出海的那段视频，勾起了他对当年出海经历的回忆。王滈同学说他很喜欢午餐会的这种形式，能让他快速地获得相关的知识，午餐会的“午餐”更多的是知识的午餐。

The student Guiyi Ma said he learned a lot about the oceanic cycle. He was most impressed by the video because it was very attractive to do experiments at sea. Associate Research Fellow Chuanjun Du also said that the most impressive part of the seminar was the video, which brought back the memories of his sea trip experience. The student Hao Wang said he liked the seminar very much because it allowed him to gain relevant knowledge quickly.