International Workshop on Organic Carbon Cycle and Biogeochemistry in Marginal Seas was held on 13-15 Oct. 2015 in Ocean University of China. Organized by Prof. Meixun Zhao and Prof. Xuchen Wang from Ocean University of China, Prof. Thomas Bianchi from University of Florida and Prof. Timothy Eglinton from ETH Zurich, more than 20 speakers from home and abroad participated in this workshop including Prof. Cindy Lee from Stony Brook University, Prof. Julian Sachs from University of Washington, Prof. Thomas Wagner from University of Newcastle, Prof. Minhan Dai from Xiamen University and Prof. Chuanlun Zhang from Tongji University. This workshop is supported by Program of Introducing Talents of Discipline to Universities: Marine Chemistry, NSFC Group of Excellence: Marine Organic Biogeochemistry, Key Laboratory of Marine Chemistry Theory and Technology (MOE) and Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology. Ocean University of China’s President Zhigang Yu delivered a welcome speech at the beginning of the workshop. Director Jianguo Ren from Marine Sciences Division, Department of Earth Sciences, NSFC and Academician Pingan Peng from Guangzhou Institute of Geochemistry, CAS also participated in the workshop as invited guests. 

Invited speakers and the talk titles:

1.       River fluxes

Timothy Eglinton：Watershed to the global-scale perspectives of terrestrial carbon export and fate

Ying Wu：Temporal and spatial variation of riverine organic matter links to climate change and anthropogenic activities

Xuchen Wang：Carbon isotopic (14C and 13C) constrains of organic carbon and black carbon transported by the Yellow River

Xiaojuan Feng：Radiocarbon characteristics of sedimentary carbon components across the pan-Arctic rivers

2.       Estuary and coastal processes

Thomas Bianchi：Transport dynamics and "hotspots" of carbon burial in estuarine systems

Wei-Jun Cai：Carbon dioxide and oxygen fluxes and net ecosystem metabolic balances in coastal waters: a case study in the Delaware estuary

Zhigang Guo：Source to sink processes of sedimentary organic components in the East China Marginal Seas

Rui Bao：Widespread dispersal and aging of organic carbon in shallow marginal seas

3.       Marginal sea biogeochemical processes

Minhan Dai：On the POC export in oceanic regimes influenced by meso-scale eddies

Chuanlun Zhang：Biogeochemistry and geomicrobiology of archaea in marginal sea sediments

Jeomshik Hwang：Particulate organic carbon production and preservation in the Amundsen Shelf, Antarctic

Kyung-Hoon Shin：Biogeochemical signatures of methane cycles in the marginal sea sediments

Sumei Liu：Human impact on the biogeochemistry of nutrients in the Chinese estuaries

4.       Sedimentary processes and records

Sarah Feakins：Pliocene reconstructions for northeast Africa: multi-proxy biomarker records from the Gulf of Aden

David Burdige：Sediments as sources of refractory DOC to the coastal and open ocean

Ruediger Stein：Present and past sedimentary organic carbon records in the Arctic Ocean: Processes, variability, and significance

Thomas Wagner：Biogeochemical processes in tropical forest watersheds: novel concepts on DOC cycling in headwaters and wetland dynamics traced from deep sea biomarker records

5.       Marginal sea-Open ocean exchange and open ocean processes

Lihini Aluwihare： Partitioning of Carbon into DOC and POC during primary production in the California Current Ecosystem / Are Terpenoids The Major Class of Terrestrial DOC transported from Land to Ocean?

Julian Sachs： Galápagos climate over the last 2 kyr from H isotopes in paired algal and mangrove lipids from coastal pond sediments

Jianfang Chen：Biogeochemical fluxes in the deep South China Sea based on sediment traps

Cindy Lee：Do marine particles exchange with each other, and if so: How?

Xinyu Guo：Material exchange between a shelf sea and the Kuroshio and the downstream transport of nutrients along the Kuroshio

6.       Future trends and focus

group picture