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

Measurement of swimming pattern and body length of cultured Chinese sturgeon by use of imaging sonar

文献类型： 外文期刊

作者： Zhang, Hui 1 ; Wei, Qiwei 1 ; Kang, Myounghee 2 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Key Lab Freshwater Biodivers Conservat, Minist Agr,Donghu Hitech Dev Zone, Wuhan 430223, Hubei Province, Peoples R China

2.Gyeongsang Natl Univ, Inst Marine Ind, Dept Maritime Police & Prod Syst, Tongyeong Si 650160, Gyeongsangnam D, South Korea

期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Measurement of fish length and assessment of behavior are important to fish farming, but it can be a practical challenge. In this study, an acoustic camera (Dual-frequency Identification Sonar, DIDSON) was used to observe the swimming pattern of 10 cultured Chinese sturgeon (Acipenser sinensis) in a net cage, and to estimate their length. In total, 2743 targets were identified from DIDSON data collected over 12 h. Target tracking indicated that most fish swam close to the net in a circular motion, at mean speed of 0.7 +/- 0.3 m s(-1). The length (95.2 +/- 25.0 cm) of the targets measured through the DIDSON was 35.6% shorter than the total length from manual measurements (147.9 +/- 9.3 cm), although the maximum lengths found by both methods were similar. Swimming pattern had a considerable influence on the accuracy of target length estimation. Accordingly, it was essential to select the targets based on swimming behavior to achieve more accurate length estimates. This study proposes that the acoustic camera is a valuable tool for investigating the behavior of the cultured fish and for estimating their length. However, designs for system installation and the net cage should be enhanced. (C) 2014 Elsevier B.V. All rights reserved.

  • 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