Seasonal Changes in Mayfly Communities and Abundance in Relation to Water Physicochemistry in Two Rivers at Different Elevations in Northern Peninsular Malaysia

作     者：Suhaila Abdul Hamid Mohd Ravi Che Salmah Hamady Dieng Abu Hassan Ahmad Tomomitsu Satho Fumio Miake 

作者机构：School of Biological SciencesUniversiti Sains Malaysia Faculty of Pharmaceutical SciencesFukuoka University 

出 版 物：《湿地科学》 (Wetland Science)

年 卷 期：2011年第9卷第3期

页      面：240-250页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 0818[工学-地质资源与地质工程] 09[农学] 0903[农学-农业资源与环境] 0901[农学-作物学] 0713[理学-生态学] 

基　　金：supported by the Fundamental Research Grant Scheme (FRGS) from the Ministry of Science  Technology and Innovation (MOSTI) 

主　　题：river ephemeroptera abundance altitude season physicochemistry 

摘      要：A field study was performed at rivers in Gunung Jerai forest reserve(Kedah,Malaysia) to assess seasonal changes in mayfly community structure and abundance in relation to altitude and water *** at lower(Batu Hampar River) and higher(Teroi River) elevations were visited through dry and wet seasons in September 2007 to August *** visits were made to 20 sites on each river,and water and aquatic insects were sampled using D-pond aquatic *** was warmer,more acid,and more turbid in Teroi River during wet *** was the only nutrient exhibiting significant seasonal variations(greater during wet season).Chemical oxygen demand content was higher in Teroi River where biochemical oxygen demand content was low during wet *** richness was higher in Batu Hampar River,but displayed seasonal variations only in Teroi *** the eight families encountered,Baetidae was the *** abundance was usually high during wet season,and those belonging to the dominant genus(Baetis) were more abundant in Teroi *** was the second commonest family;its predominant genus,Thalerospyrus was more abundant in Teroi River during dry ***,Leptophlebiidae and Oligoneuriidae were only found in Batu Hampar River where their abundances peaked during dry season,i.e.,Habrophlebiodes *** Isonychia *** and Teloganodidae occurred only in Teroi River,with the first found only during dry *** were recorded under very distinct physicochemical conditions,illustrating their potential usefulness for assessing water ***,leptophlebids,oligoneurids ephemerellids and teloganodids seem to be particularly sensitive to temperature,acidity,turbidity,chemical oxygen demand and biochemical oxygen demand,parameters that varied with river altitude.