期刊
MARINE ENVIRONMENTAL RESEARCH
卷 76, 期 -, 页码 80-89出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.marenvres.2011.08.007
关键词
Defaunation; Eutrophication; Hypoxia; Macrobenthos; Organic matter; Tokyo Bay
资金
- Japan Society for the Promotion of Science [19-8193]
- Grants-in-Aid for Scientific Research [23780206] Funding Source: KAKEN
This study demonstrated the spatiotemporal patterns of the environmental conditions and benthic macrofauna in Tokyo Bay, Japan, and investigated the factors causing disturbances in the assemblage structure. In the north-central areas, the density and species diversity of the macrobenthos was low. Although hypoxia appeared in July, defaunation occurred in August. The delayed defaunation and recolonization soon after the abatement of hypoxia were attributed to several polychaete and bivalve species that were tolerant to the hypoxic environment. In the southeastern areas, however, the density and species diversity of the macrobenthos was high throughout the year, and no defaunation was recorded. Multivariate analyses showed that the disturbance in the macrofauna correlated with organic enrichment in the sediment and bottom-water hypoxia. There is a concern about further impairment of the macrofauna in the bay due to the expansion of sediment with high levels of organic matter towards the southern regions that could cause hypoxia and subsequent defaunation. (C) 2011 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