Zooplanktons are microscopic organisms, which are integral components of aquatic food web, as they contribute significantly to productivity of freshwater ecosystems. They are also very sensitive to environmental changes; therefore they make ideal indicator organisms. Total zooplankton (Rotifer, Cladocera, Copepod and Ostracod) abundance was significantly more in Cauvery river with the mean abun...

Studies on plankton of river Cauvery water, Mettur, Salem District, Tamil Nadu was made to assess the pollution of water from January 2003 to December 2003. The qualitative and quantitative evaluation of the variation in river water showed high quantity of phytoplankton and zooplankton population throughout the study period and rotifers formed dominated group over other groups of organisms. The...

The present investigation was an attempt to examine the composition, abundance, frequency of occurrence and diversity of net phytoplankton species inhabiting in river Cauvery and its tributaries river Arasalar at Kumbakonam area (10.110-12.70 E latitude and 78.86-79.85 N longitude), Tamil Nadu, India. From the selected 6 stations of river Cauvery and river Arasalar water samples were collected ...

River Cauvery which converts Srirangapatna into an island is one among the most significant holy places in Southern India. In the present study, an expanse of river Cauvery was selected based on prevailing human activities and its water quality was monitored across 12 strategic points over two seasons. The river is also presently serving as a principle means of municipal wastewater carrier. The...

this report provides the first record of the exotic sucker fish p. pardalis from the cauvery river system, tamilnadu state, india. information on the assumed presence of this invasive species based on sightings of a hitherto unknown species by local people and fishermen in stretches of cauvery river have been confirmed by our study. sailfin sucker fishes are popular among pet traders and aquari...

Ompok karunkodu, a new species of silurid catfish is described from the Amaravathi River, a right-hand tributary of the Kaveri [=Cauvery] River in Tamil Nadu, southern India. Ompok karunkodu can be distinguished from all congeners in the Indian subcontinent in having a markedly convex predorsal profile (vs. with a slight or distinct concavity in the supraethmoidal or supraoccipital region), and...

Background: Natural radiation is constantly present in the environment and is emitted from a variety of natural and artificial sources. It affects human body and environment. Materials and Methods: The activity concentrations of 238U, 232Th and 40K have been determined by Gamma ray spectrometer with an HPGe detector in sediments of Cauvery River, Tamilnadu, India. Results: The absorbe...

background: natural radiation is constantly present in the environment and is emitted from a variety of natural and artificial sources. it affects human body and environment. materials and methods: the activity concentrations of 238u, 232th and 40k have been determined by gamma ray spectrometer with an hpge detector in sediments of cauvery river, tamilnadu, india. results: the absorbed dose rat...

Hydrochemical assessment of the Cauvery River Basin (CRB), an east flowing Western Ghats (WG) river, is carried out to understand dissolved load sources and controlling mechanisms with quantification source-wise input load. Silicate weathering rates (SWR) associated CO2 consumption (CCR) are evaluated on account silicate basement CRB comprising granulites supracrustal rocks. The solute contribu...

The present-day study assesses diatom communities in river with relation to environmental conditions. Diatoms are susceptible to environmental conditions in river and their distribution is mainly governed by the physicochemical composition of the water. Diatoms and water samples were collected in 5 locations during summer season (May 2012). Analysed data were interpreted and the results are rep...