IJEP 41(8): 931-940 : Vol. 41 Issue. 8 (August 2021)
Saravanaraja Muthusamy*, Aruna Devi Subramanium and Nagarajan Karuppana Gr.
Sri Vasavi College, P. G. and Research Department of Zoology, Erode – 638 316, Tamil Nadu, India
A multiplicity of floral and faunal species is an inimitable feature of tropical freshwater lakes. Preservation of the tropical lakes by an understanding of the process is a conservation action for numerous biotic species. Various studies reported that the accumulation of nutrients has been considered as a foremost menace of the inimitable tropical lakes due to bottom sediment and dominant biotic groups. However, the course of action is not clearly established. The study was conducted at Vellode lake, Erode district, that lies between 1108’04.04″ N and 77037’52.42″ E, South India. Characterization of water and sediment analysis was conducted to measure the seasonal changes and variations. The bird populations were surveyed with the assistance of field guides and lake managers. The correlation between the chemical features of the lake sediment and water was calculated. Correlation analysis between biodiversity indices of bird populations (independent) and water quality index (dependent) was calculated to find the impact of bird populations on the water quality of the lake. Role of bottom sediment on the hydrology of the lake, impact of bird droppings on hydrology and seasonal influence on the nutrient additions was tinted. Current research revealed that the high volume of bottom sediment and density of aquatic birds were identified as the major factors for the depletion of water eminence. Based on the annotations appropriate strategies are recommended to manage base sediment by engineering, chemical and physical methods and cultural techniques for other components responsible for the deterioration of the tropical lake quality.
Nutrient additions, Vellode lake, Sediment, Bird density
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