IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR Asia Pacific Division Proceedings : 19th IAHR APD Congress, Hanoi 2014 : Session 1: ENVIRONMENTAL HYDRAULICS : THERMAL EFFECTS ON BENTHIC INVERTEBRATES WITHIN THE HEADSTREAMS
THERMAL EFFECTS ON BENTHIC INVERTEBRATES WITHIN THE HEADSTREAMS
Author : R. ARAI (1), K. NUKAZAWA(2) ,S. KAZAMA (3) AND Y. TAKEMON (4)
Headwater streams are relatively stable and free of human structures or land use changes. The flow regime and water quality characteristics of such streams, with the exception of water temperature, are therefore not subject to significant variation throughout the year. We conducted monthly sampling of the benthic communities and measurements of the water temperature of headwater streams located in NE Japan in 2011 and 2012.As results, the similarity index decreased significantly with the water temperature difference expanding. This result implies that projected increases in water temperature due to climate change may alter the composition of benthic communities. The abundance of the Plecoptera assemblage appeared to decline with elevated temperature, with this negative association particularly strong in the summer months.
File Size : 255,999 bytes
File Type : Microsoft Word Document
Chapter : IAHR Asia Pacific Division Proceedings
Category : 19th IAHR APD Congress, Hanoi 2014
Article : Session 1: ENVIRONMENTAL HYDRAULICS
Date Published : 10/03/2015
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