IMPACT OF AQUATIC MACROPHYTES ON CRUSTACEAN ZOOPLANKTON POPULATION IN A VEGETATED POND AT ALIGARH, INDIA
|Uzma Ahmad* and Saltanat Parveen
Limnology Research Laboratory, Department of Zoology, Aligarh Muslim University, Aligarh, India
|Corresponding Author: Uzma Ahmad,Limnology Research Laboratory, Department of Zoology, Aligarh Muslim University, Aligarh, India., E-mail: [email protected]|
|Received: 20 December 2012 Accepted: 30 December 2012|
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A study on the Impact of aquatic macrophytes on crustacean zooplankton population in Chautal pond which is distinguished as macrophyte-dominated pond at Aligarh, India was carried out from May, 2010 to April, 2011.Of five aquatic macrophytes recorded, water hycinth Ecchorina crassipes (43.09 %) was the most dominant species followed by Typha angustata (26.02 %).The highest total number of crustacean zooplankton was recorded during June (247 No./L) while the highest macrophytes abundance was recorded during July (48 No/m2). Among three crustacean groups recorded, Cladocera constituted the highest percentage (54 %) and the highest number of species (13 species). The lowest crustacean zooplankton numbers were recorded during August, 2010 being 67 No./L .This might be attributed to the impact of the macrophyte which recorded the highest abundance during the same months being 48 No/m2. The highest negative correlation was recorded between macrophytes E. crassipes and the ostracods Cyìpris sp. (-0.77) while the highest positive correlation was recorded between the macrophytes Polygonum sp. and the cladocerans Chydorus spherics (0.77).