DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 3171-3190 of 9376
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Deep-sea ferromanganese deposits and their resource potentials for India
(Indian Institute of Science, 2010)Due to rapidly depleting land-based mineral resources, oceanic mineral deposits gain greater significance. Ferromanganese deposits on the seabed (nodules) and seamounts (crusts) known for the enrichment of several transition ... -
Autonomous vertical profiler data management
(Springer, 2010)The Autonomous Vertical Profiler (AVP), developed at NIO [1] [2], collects position and water column data over a period of 3 days and transmits through a satellite modem which is collated and stored on a PC. Data includes ... -
Navigation of autonomous underwater vehicle using extended kalman filter
(Springer, 2010)To navigate the Autonomous Underwater Vehicle (AUV) accurately is one of the most important aspects in its application. A truly autonomous vehicle must determine its position which requires the optimal integration of all ... -
Safety aspects for underwater vehicles
(Springer, 2010)Advances in technologies related to miniature sensors, memories, embedded controllers, power systems and materials has resulted in development of variety of autonomous underwater platforms for ocean exploration. The future ... -
Differential dissolution of biogenic carbonates: Implications of secretion at higher pH
(The Palaeontological Society of India, 2010)A selective preferential dissolution of a few initial chambers of several specimens of calcareous planktic foraminifera Globigerinoides rubber has been noted in the surface sediments collected from the eastern Arabian Sea ... -
'Shamal' swells in the Arabian Sea and their influence along the west coast of India
(American Geophysical Union, 2011)Wave data collected off Ratnagiri, Goa and Dwarka along the west coast of India during winter season (NE monsoon and early pre‐monsoon) present distinct wave characteristics with periodicity ranging between 2 and 5 days ... -
Oxygen minimum seafloor ecological (mal) functioning
(Elsevier, 2011)Although organic matter (OM) settling on the seafloor is generally rapidly recycled, a key ecological process, large scale burial events manifest itself in the marine sedimentary record as organic carbon (Corg)-rich layers. ... -
Tsunamis: Detection, monitoring, and early-warning technologies
(Elsevier, 2011)The devastating impacts of tsunamis have received increased focus since the Indian Ocean tsunami of 2004, the most devastating tsunami in over 400 years of recorded history. This professional reference is the first of its ... -
Role of cyclones and other factors in the decline of the ports of northern Orissa
(Current Science Association, 2011)The maritime trade of Orissa with transoceanic countries is evident from the early historical period onwards. It has been observed that new ports were set up after the decline of old ports in the nearby vicinity; however, ... -
Mono and dinuclear arene ruthenium(II) triazoles by 1,3-dipolar cycloadditions to a coordinated azide in ruthenium(II) compounds
(The Royal Society of Chemistry, 2011)The dimeric Eta sup(6)-hexamethylbenzene ruthenium(II) triazole compounds of formulation (((Eta sup(6)-C sub(6)Me Sub(6))Ru(N sub(3)C sub(2)(CO sub(2)R)sub(2)) sub(2) - (mu C sub(2)O sub(4))) have been synthesized by ... -
Distribution of butyltins in the waters and sediments along the coast of India
(Elsevier, 2011)Water and surface sediment samples were analyzed for butyltins (TBT, DBT, MBT) from various ports along the east and west coast of India. The total butyltin (TB) in water samples varied between approx. 1.7 and 342 ng Sn l ... -
State of knowledge of coastal and marine biodiversity of Indian Ocean countries
(Public Library of Science, 2011)The Indian Ocean (IO) extends over 30% of the global ocean area and is rimmed by 36 littoral and 11 hinterland nations sustaining about 30% of the world’s population. The landlocked character of the ocean along its northern ... -
Relationship between abundance and morphology of benthic foraminifera Epistominella exigua: Palaeoclimatic implications
(Geological Society of India, 2011)The relationship between abundance (relative as well as absolute abundance) and morphology (size of the shell, numbers and proloculus size) of benthic foraminifera Epistominella exigua has been studied in a core to understand ... -
Megafaunal community structure of Andaman seamounts including the back-arc basin - A quantitative exploration from the Indian Ocean
(Public Library of Science, 2011)Species rich benthic communities have been reported from some seamounts, predominantly from the Atlantic and Pacific Oceans, but the fauna and habitats on Indian Ocean seamounts are still poorly known. This study focuses ... -
Sea surface temperature changes during May and August in the western Arabian Sea over the last 22 kyr: Implications as to shifting of the upwelling season
(Elsevier, 2011)In the western Arabian Sea (WAS), the highest seasonal sea surface temperature (SST) difference presently occurs between May and August. In order to gain an understanding on how monsoonal upwelling modulates the SST ... -
Re-introduction and supplementation of species of Acropora and Pocillopora into the lagoons of Lakshadweep Islands, India
(Abu Dhabi: IUCN/SSC Re-introduction Specialist Group, 2008)The genera Acropora and Pocillopora are represented by a large number of species in most coral reefs They are more sensitive to environmental changes and anthropogenic effects and hence are more at risk than other coral ... -
Distribution of diatom Pseudo-nitzschia and dinoflagellates of Dinophysis spp along coast off Goa
(Triveni Enterprises, 2011)As a part of an annual analysis on the phytoplankton distribution and composition, regular monthly sampling carried out during October 2007-September 2008 from salinity gradient zones in the intertidal waters along the ... -
Waves in the nearshore waters of northern Arabian Sea during the summer monsoon
(Elsevier, 2011)Waves at 15 m water depth in the northern Arabian Sea are measured during the summer monsoon for a period of 45 days and the characteristics are described. The significant wave height varied from 1.1 to 4.5 m with an average ... -
Calamenenes - aromatic bicyclic sesquiterpenes - from the Indian gorgonian Subergorgia reticulata (Ellis and Solander, 1786)
(Taylor & Francis, 2011)Three aromatic sesquiterpene derivatives, (+)-(7R, 10S)-2-methoxy calamenene (1), (+)-(7R, 10S)-2,5-dimethoxy calamenene (2) and (+)-(7R, 10S)-2-methoxy-5-acetoxy calamenene (3) were isolated from the methanol extract of ... -
Comparative efficacy of four anaesthetic agents in the yellow seahorse, Hippocampus kuda (Bleeker, 1852)
(Elsevier, 2011)In modern aquaculture, anaesthetics play an important role in reducing handling stress and mortality. In this investigation, the efficacy of four anaesthetic agents (MS-222, benzocaine, clove oil and 2-phenoxyethanol) was ...