Suspended algal communities in high altitude rice wetlands of Apatani Plateau in Eastern Himalaya
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2016, Vol 8, Issue 3
Abstract
The suspended algal life forms (SALF) were studied in the high altitude rice fields (WRF) covering five randomly selected sites of Apatani Plateau in Arunachal Pradesh, India. The samples were collected fortnightly from WRF in three inundated phases viz. water accumulation (April- May), flooding (June-July) and early recession (August –September) during the rice growing season of 2013. A total of 62 taxa of SALF belonging to the classes Chlorophyceae, Bacillariophyceae and Cyanophyceae were recorded. Closterium sp., Spondylosium sp., Scenedesmus sp., Ulothrix sp., Zygnema sp., Spirogyra sp., Docidium sp. of Chlorophyceae, Navicula sp., Pinnularia sp., Rhizosolenia sp., Tabellaria sp. of Bacillariophyceae and Oscillatoria sp., Nostoc sp., Phormidium sp. of Cyanophyceae were in high abundance in WRF. The study also revealed that Chlorophyceae was the most dominant and diverse class of SALF followed by Bacillariophyceae and Cyanophyceae which was ensued for concurrent existence of rice stems as the affixing substrate of attached algal life forms (AALF) in WRF.
Authors and Affiliations
Rajashree Saikia, Arijit Ganguly, Tapati Das, Debangshu Narayan Das
Keywords
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