DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6261-6280 of 9443
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Grain size analysis of sediments from the northern Andaman Sea: Comparison of laser diffraction and sieve-pipette techniques
(Coastal Education and Reserch Foundation, 2006)A comparison has been made of sand, silt, and clay percentage of 118 samples from the Ayeyarwady continental shelf, northern Andaman Sea, measured by the sieve-laser diffraction technique and by classical sieve-pipette ... -
Seafloor classification using acoustic backscatter echo-waveform - Artificial neural network applications
(IEEE Singapore Section Secretariat, 2006)In this paper seafloor classifications system based on artificial neural network (ANN) has been designed. The ANN architecture employed here is a combination of Self Organizing Feature Map (SOFM) and Linear Vector Quantization ... -
Geographical positioning using laser optical instrument for near-shore underwater archaeological explorations
(Society for Marine Archaeology, NIO, 2006)Underwater archaeological explorations, which are being carried out both in shallow as well as in deep waters, need accurate positioning system for locating any artifacts and to plot on suitable scales. Even though surveying ... -
GPRS based real-time reporting and internet accessible sea level gauge for monitoring storm surge and tsunami
(IEEE Singapore Section Secretariat, 2006)Development and implementation of a real-time reporting and Internet-accessible sea level gauge is described. The paper addresses the application of mobile communication technology and particularly the use of General Packet ... -
Multibeam echosounders and its importance
(CSIR, India, 2006) -
Marine nitrogen cycle
(National Council for Science and the Environment, 2006) -
Butyltins in the sediments of Kochi and Mumbai harbours, west coast of India
(Elsevier, 2006)Surface sediment samples were collected from various locations in the Mumbai and Kochi harbours, west coast of India, to assess the presence of butyltin compounds. Tributyltin (TBT) and dibutyltin (DBT) varied from 16 to ... -
Recent advances in the biogeochemistry of nitrogen in the ocean
(The European Geosciences Union, 2006) -
Assessment on seasonal variation of groundwater quality of phreatic aquifers - A river basin system
(Springer, 2006)Spatial distribution of pH, electrical conductivity (EC), total dissolved solids (TDS), fluoride and total iron content of ground water samples collected from the muvattupuzha river basin, Kerala, India, has been studied ... -
Nitrogen cycling in the suboxic waters of the Arabian Sea
(Springer, 2006)Arabian Sea contains one of the world's three large oxygen deficient zones (ODZ). Within the ODZ oxygen concentration is vanishingly small between about 200 and 800 m depth and in this depth interval denitrifications is ... -
Chemical diversity in opisthobranch molluscs from scarcely investigated Indo-Pacific areas
(Springer-Verlag, 2006)Opisthobranch molluscs with both a rich variety of secondary metabolites and great biomedical potential represent the most intensively studied group of molluscs in natural product chemistry. The chemical investigations ... -
Acetylcholinesterase activities in marine snail (Cronia contracta) as a biomarker of neurotoxic contaminants along the Goa coast, West coast of India
(Springer, 2006)The measurement of acetylcholinesterase (AChE) activity is used worldwide as a biomarker of environmental contamination due to neurotoxic substances. In the present study the AChE activities was measured in marine snails ... -
Seasonal oxygen deficiency over the western continental shelf of India
(Springer, 2006)The North Indian Ocean contains about two-third of the global continental-margin area affected by natural oxygen deficiency (O2 less than 0.2 mL L sup(-1)) in the water column. Also, the littoral countries of this ... -
Denitrification rates and excess nitrogen gas concentrations in the Arabian Sea oxygen deficient zone
(Elsevier, 2006)Rates of canonical, i.e. heterotrophic, water-column denitrification were measured by sup(15)N incubation techniques at a number of coastal and open ocean stations in the Arabian Sea. Measurements of N2 :Ar gas ratios were ... -
Coastal biogeochemical processes in the north Indian Ocean (14, S-W)
(Harvard University Press, 2006) -
Seasonal variations in groundwater chemistry of a phreatic coastal and crystalline terrain of central Kerala, India
(Taylor and Francis, 2006)This article investigates the seasonal variation in geochemical characteristics of groundwater in phreatic aquifers of the coastal plain and crystalline terrain of central Kerala, India. Within the coastal plain, the western ... -
Diatoms of the microphytobenthic community in a tropical intertidal sand flat influenced by monsoons: Spatial and temporal variations
(Springer, 2006)Seasonal variations in the microphytobenthic diatom community were investigated in an intertidal sand flat of a tropical marine environment influenced by monsoons. Cores of sediments were collected along the beach gradient: ...