NDLI: Navigation disturbance and its impact on fish assemblage in the East Tiaoxi River, China

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Navigation disturbance and its impact on fish assemblage in the East Tiaoxi River, China

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Acknowledgments

Landscape and Ecological Engineering : Volume 9, Issue 1, January 2013

Landscape and Ecological Engineering : Volume 8

Landscape and Ecological Engineering : Volume 7

Landscape and Ecological Engineering : Volume 6

Landscape and Ecological Engineering : Volume 5

Landscape and Ecological Engineering : Volume 4

Landscape and Ecological Engineering : Volume 3

Landscape and Ecological Engineering : Volume 2

Landscape and Ecological Engineering : Volume 1

Navigation disturbance and its impact on fish assemblage in the East Tiaoxi River, China

Content Provider	Springer Nature Link
Author	Ka, Yuichi Sato, Tatsuro Huang, Liangliang Wood, Chris Bessho, Kazuhiro Matsumoto, Tomotaka Shimatani, Yukihiro Nakajima, Jun
Copyright Year	2011
Abstract	We provide the first evidence for navigation impact on resident river fish in China. The survey was conducted in the East Tiaoxi River that discharges into Lake Taihu near Shanghai, on which cargo ship traffic has dramatically increased in the recent economic development period. Water turbidity, ship traffic and other environmental factors were evaluated at 29 sites on the river. In a multiple regression model with the stepwise method, turbidity was significantly correlated with ship traffic (R $^{2}$ = 0.53). Another survey was conducted at 46 sites in the same area of the river, in which environmental factors were evaluated and fish individuals were electrofished. A generalised linear model with the stepwise method was applied to predict ecological indicators of the fish assemblage (species richness, individual density and Shannon’s diversity index) based on environmental factors. The results showed that the indicators were negatively correlated with turbidity and presence of artificial shore embankment structures. Another analysis further showed that the negative effect of turbid water was especially considerable for fish of smaller size. In conclusion, cargo ship traffic has a negative impact on fish assemblage, especially on smaller individuals, in the East Tiaoxi River. A higher profile for conservation actions and consideration of environmental impacts of such traffic should be given increasing focus for this and other similar East Asian water courses.
Starting Page	289
Ending Page	298
Page Count	10
File Format	PDF
ISSN	18601871
Journal	Landscape and Ecological Engineering
Volume Number	9
Issue Number	2
e-ISSN	1860188X
Language	English
Publisher	Springer Japan
Publisher Date	2011-10-26
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cargo ship traffic Embankment Lake Taihu Navigation bottleneck hypothesis (NBH) Turbidity Water pollution Landscape Ecology Nature Conservation Civil Engineering Environmental Management Landscape/Regional and Urban Planning Plant Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Management, Monitoring, Policy and Law Nature and Landscape Conservation

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