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Mar Pollut Bull. 2018 Feb;127:429-436. doi: 10.1016/j.marpolbul.2017.12.038. Epub 2017 Dec 21.

Different effects of reclamation methods on macrobenthos community structure in the Yangtze Estuary, China.

Author information

1
School of Life Science, East China Normal University, Shanghai 200241, China.
2
Institute of Eco-Environment and Plant Protection, Shanghai Academy of Agriculture Sciences, Shanghai 201403, China.
3
School of Life Science, East China Normal University, Shanghai 200241, China. Electronic address: ylzhao@bio.ecnu.edu.cn.

Abstract

The effects of enclosed, semi-closed, and opened reclamation methods on the macrobenthos community structure were investigated. Compared with their paired controls, water salinity decreased sharply in the enclosed reclamation region with no apparent change in the opened reclamation region. Declining species and biodiversity was observed in the reclamation regions, but the extent of this declining trend was weaker in the semi-closed and opened reclamations than in the enclosed reclamation region. The ABC curve indicated that the enclosed reclamation was disturbed, whereas the semi-closed and opened reclamations were undisturbed. Taken together, these results suggest that reclamation may have a negative effect on the community and health status of macrobenthos in the intertidal wetlands of the Yangtze Estuary. Semi-closed and opened reclamation methods may mitigate the problem of a salinity decrease caused by enclosed reclamation, while also having a relatively weaker negative effect on community structure and wetland habitat.

KEYWORDS:

Macrobenthos community; Opened reclamation; Reclamation method; Semi-closed reclamation; Yangtze estuary

PMID:
29475681
DOI:
10.1016/j.marpolbul.2017.12.038
[Indexed for MEDLINE]

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