Hydroacoustic survey on the spatial distribution pattern and day-night rhythmic behaviour of fishes in the Xiaonanhai reach of the upper Yangtze River

Summary To understand the spatial distribution patterns and fish behaviour in the Xiaonanhai reach of the upper Yangtze River at the end of the Three Gorges Reservoir, four acoustic surveys were carried out over longer periods in 2011 and 2012, which included two boat surveys and two fixed‐station h...

Full description

Saved in:
Bibliographic Details
Published inJournal of applied ichthyology Vol. 29; no. 6; pp. 1402 - 1407
Main Authors Lin, P.-C., Gao, X., Zhu, Q.-G., Wang, T., Liu, H.-Z.
Format Journal Article
LanguageEnglish
Published Berlin Blackwell Publishing Ltd 01.12.2013
Wiley Subscription Services, Inc
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:Summary To understand the spatial distribution patterns and fish behaviour in the Xiaonanhai reach of the upper Yangtze River at the end of the Three Gorges Reservoir, four acoustic surveys were carried out over longer periods in 2011 and 2012, which included two boat surveys and two fixed‐station horizontal detections. The results showed that fish assemblages were unevenly distributed in the investigated areas, and were mainly concentrated in the section from Funiuxi to Gaojiatuo. Fish behaviour was found to show a night‐time activity peak. Additionally, fish moved much closer to the riverbank at night than during the day. Considering the intense human activities in this area, some suggestions are offered to mitigate the negative effects of shipping and hydrodam construction by using design and operational logistics to support future fish conservation.
Bibliography:ark:/67375/WNG-GCNF5B08-1
China Three Gorges Corporation - No. 0799522; No. 0799527
Three Gorges Project eco-environmental monitoring system - No. JJ [2011]-028
istex:FA89FA8F9CE0F81A81554CF6F5145E3774A8ADD8
ArticleID:JAI12342
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0175-8659
1439-0426
DOI:10.1111/jai.12342