期刊
MARINE POLLUTION BULLETIN
卷 114, 期 2, 页码 637-643出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.10.030
关键词
Organic carbon; Organic nitrogen; Stable isotope; Sediment; Bayesian mixing model
资金
- Ministry of Education, Culture, Sports, Science, and Technology, Japan [24510009]
- Canon Foundation
- Grants-in-Aid for Scientific Research [24510009] Funding Source: KAKEN
Total organic carbon (TOC), total nitrogen (TN) contents, their stable C and N isotope ratio (delta C-13 and delta N-15), and chlorophyll a ([ChI a](sed)) of surface sediments were investigated monthly to identify the seasonal variations and sources of organic matter in Tokyo Bay. The sedimentary TOC (TOCsed) and TN (TNsed) contents, and the sedimentary delta(3C) and delta N-15 (delta(13)Csed and delta N-15(sed)) values were higher in summer than other seasons. The seasonal variations were controlled by high primary production in the water column and hypoxic water in the bottom water during summer. The fraction of terrestrial and marine derived organic matter was estimated by Bayesian mixing model using stable isotope data and TOC/TN ratio. Surface sediments in Tokyo Bay are dominated by marine derived organic matter, which accounts for about 69 +/- 5% of TOCsed. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据