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Short‐term habitat use by young grayling,Thymallus thymallusL., under variable flow conditions in an experimental stream

 

作者: S. VALENTIN,   P. SEMPESKI,   Y. SOUCHON,   P. GAUDIN,  

 

期刊: Fisheries Management and Ecology  （WILEY Available online 1994）
卷期: Volume 1, issue 1  

页码: 57-65

 

ISSN:0969-997X

 

年代: 1994

 

DOI:10.1111/j.1365-2400.1970.tb00006.x

 

出版商: Blackwell Publishing Ltd

 

关键词: habitat use;hydropeaking;juvenile;salmonids;spate simulation;water velocity

 

数据来源: WILEY

 

摘要:

Abstract In an experimental stream containing available refuge zones, moderate and instantaneous flow variations did not cause high mortality or substantial increase in downstream migration of 2‐month‐old grayling,Thymallus thymallusL. Fish were able to react rapidly to spate simulations by a change in space utilization determined by changes in water velocity patterns. Reaction of fish to these experimental flow variations corresponded to a refuge strategy, i.e. seeking shelter and minimizing the distance to fi

 

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