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ISSN: 2320 –7825 (Print); eISSN 2320 –7833 (Online)
Applied Biology and Biotechnology
Peer - Reviewed Journal
Volume No. 2(3) September,2014
An Analysis on Water Quality and Plankton observation in Selected Fresh Water Ponds of Palayamkottai
R. Santha Kumari and T. A. Sethuramalingam
Abstract A study on water characteristics and plankton analysis in two freshwater ponds in and around Palayamkottai, Tirunelveli District, Tamil Nadu were carried out during July ’12 to June ’13. The average surface water temperature was 30.5 C and 26.5 C in pond I and II and the average pH recorded was 7.68 in pond I and 8.3 in pond II. Other parameters such as free carbon di-oxide, dissolved oxygen, salinity, nitrite, nitrate, phosphate and TDS were evaluated. The amplitude of variations were not too high and the change may be due to seasonal effect. Planktons analysed in the two ponds revealed 5 to 7 rotifers separately in pond I and II during the sampling period. The most important species among them were Brachionus calyciflorus, Plationus patulus, Philodinae and Keratella spp. Pottal pond showed less abundance (approximately 14,300 individuals/total sampled water) of plankton than pond II (approximately 17,000 individuals/ total sampled water). In terms of water quality also pond II exhibited higher productivity than pond I. Diversity of plankton species was calculated by Shannon index. Keywords: Plankton analysis; freshwater ponds; Palayamkottai; Brachionus calyciflorus; Plationus patulus.
Role of Malayali tribals in collection of commercial non-timber forest products of Kolli hills and Yercaud hills in Eastern Ghats, Tamilnadu India
P. Packiaraj, K. Suresh and P. Venkadeswaran
Abstract The study documents plant species used as non-timber forest products (NTFPs) and traditional knowledge on the utilization of these plant resources by malayali tribes of Kolli Hills and Yercaud Hills in Eastern Ghats, Tamilnadu. India. The study was exploratory and participatory in nature. A total of 30 plant species belonging to 26 genus and 22 families have been identified from the malayali community areas. Beside this certain NTFP species like Andrographis lineata, Amorphophallus paeoniifolius, Terminalia chebula, Terminalia bellirica, Canarium strictum, Gloriosa superba, Urginea indica, etc., are under threat of being extinct due to growing human pressure as well as habitat degradation impacted by anthropogenic activities, recent trend of climate change. Elderly persons and traditional healers of the areas pose vast knowledge on ethno medicinal practices along with various rituals in comparison of the young generation.The knowledge transformation system is quite restricted within the family. It is not only essential to conserve such a wealth of information hidden among the local people but also to apply them to modern knowledge of science and technology to meet the ever increasing requirement of mankind. Keywords: Non-timber forest products, documents, Tribe, Traditional Knowledge.
