VORTICITY CHARACTERISTICS OF CHINESE STURGEON SPAWNING GROUND

被引：1

作者：

Yang, Yu ^{[1
]}

Yan, Zhongmin ^{[2
]}

Chang, Jianbo ^{[3
]}

机构：

[1] Nanjing Hydraul Res Inst, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210029, Jiangsu, Peoples R China

[2] Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing, Jiangsu, Peoples R China

[3] Inst Hydroecol, Wuhan, Peoples R China

来源：

ADVANCES IN WATER RESOURCES AND HYDRAULIC ENGINEERING, VOLS 1-6 | 2009年

关键词：

Chinese sturgeon; spawning ground; vorticity; VELOCITY;

D O I：

10.1007/978-3-540-89465-0_110

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Since the construction of the Gezhouba Dam in 1981, it has been found that Chinese sturgeon, Acipensor sinensis, performes natural propagation annually in a narrow reach downstream close to the Gezhouba Dam site. This would allow one to better investigate what the hydraulic and morphologic conditions of a river can meet the Chinese sturgeon spawning. In this article, the absolute values of vorticity have been computed along the river cross-sections based field measuring data. The relation of the CPUEd to vorticity strength over the study area has been developed. It suggests that the proposed vorticity metric is sensitive to being able to describe the hydraulic characteristics of Chinese sturgeon spawning ground. The Chinese sturgeon spawns mainly distribute the area where the vorticity strength is larger than 0.4 s(-1).

引用

页码：635 / +

页数：2

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