您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Hatchery technology restores the spawning ground of phytophilic fish in the urban river of Yangtze Estuary, China

文献类型： 外文期刊

作者： Huang, Xiaofeng 1 ; Zhao, Feng 3 ; Song, Chao 3 ; Gao, Yu 3 ; Chai, Yi 1 ; Zhong, Liqiao 4 ; Zhuang, Ping 3 ;

作者机构： 1.Yangtze Univ, Coll Anim Sci, Jingzhou 434020, Peoples R China

2.Yangtze Univ, Minist Educ, Engn Res Ctr Ecol & Agr Use Wetland, Jingzhou 434020, Peoples R China

3.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst Shanghai, Beijing 200090, Peoples R China

4.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China

关键词： Habitat rehabilitation; Stereo artificial floating wetlands; Urban river; Spawning substrata; Viscid egg; Yangtze Estuary

期刊名称：URBAN ECOSYSTEMS （ 影响因子：3.005； 五年影响因子：3.354 ）

ISSN： 1083-8155

年卷期：

页码：

收录情况： SCI

摘要： Due to the concrete slope protection projects conducted around urban rivers in many megalopolises, increased attention has been paid to fish biodiversity losses accompanying urban development. Hatchery technology is a promising method for restoring fisheries where spawning substrates are degraded and/or lacking. In the current study, a Phragmites australis stereo artificial floating wetland (SAFW) was constructed in an urban river (Tuanwang River, Shanghai), and palm sheets were laid under the SAFW frame to imitate the spawning grounds for phytophilous fish. Fish species with five spawning types were distinguished from nineteen fish species in the study area. After viscid eggs were found to be attached to the palm sheets, the eggs were distinguished by the subunit of the mitochondrial cytochrome C oxidase I gene. All of the eggs belonged to six fish species: Culter ilishaeformis, Cyprinus carpio, Cyprinus auratus, Cultrichthys erythropterus, Rhodeus sinensis, and Hemiculter leucisculus. Cyprinus auratus and Cyprinus carpio accounted for the vast majority, and the number of these species was significantly greater than that of the other species. Dissolved oxygen and light intensity at the water surface were significantly higher than those at the deep water sites (p < 0.05), and all viscid eggs were inclined to be distributed at water depths of -0.5 and - 1.5 m. The results of redundancy analysis (RDA) showed that both water depth and dissolved oxygen were the main environmental variables in all spawning periods. The current study suggested that the relatively inexpensive P. australis SAFW was a useful hatchery technology for creating spawning grounds for phytophilous fish in urban rivers.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台