DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 3551-3570 of 9376
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On the diurnal ranges of sea surface temperature (SST) in the north Indian Ocean
(Indian Academy of Sciences, 2009)This paper describes the variability in the diurnal range of SST in the north Indian Ocean using in situ measurements and tests the suitability of simple regression models in estimating the diurnal range. SST measurements ... -
Abundance and production of particle-associated bacteria and their role in a mangrove-dominated estuary
(Inter-Research, 2009)A 1 yr study was carried out in the mangrove-dominated, tropical Mandovi estuary (Goa, India) to assess the contribution of particle-associated bacteria (PAB) to the system’s variability in terms of abundance and productivity. ... -
Rock physics modeling of shallow marine sediments in the eastern continental margin of India
(The International Society of Offshore and Polar Engineers, 2009)Rock physics models are used to estimate the geo-technical properties such as the elastic moduli from the porosity and mineralogy datasets. If the velocity measurement is available the same rock physics model can be used ... -
Oxygen isotope records of Globigerina bulloides across a north-south transect in the south-western Indian Ocean
(Springer, 2009)Along a north-south transect (9.69 degrees N to 55.01 degrees S) in the southwestern Indian Ocean during the Indian Pilot Expedition to Southern Ocean (PESO), the oxygen isotopic analysis of planktic foraminifera (Globigerina ... -
The fine art of aquascaping
(Dixitulu, J.V.H., 2009)The ornamental fish trade plays a significant role in the economics of developed as well as developing countries not only as a foreign exchange earner but also as a source of employment. Global trade in ornamental fish ... -
Diagenesis and bioavailability of mercury in the contaminated sediments of Ulhas Estuary, India
(Elsevier, 2009)Sequential extraction of Hg was performed in a core collected from intertidal area in Ulhas Estuary in order to characterize the downward distribution and diagenetic behavior of Hg in a polluted estuary. Concentration of ... -
Acoustic characterization of seafloor sediment employing a hybrid method of neural network architecture and fuzzy algorithm
(IEEE, 2009)Seafloor sediment is characterized acoustically in the western continental shelf of India using the echo features extracted from normal incidence single-beam echo sounder backscatter returns at 33 and 210 kHz. The seafloor ... -
Evidences for seawater-rock hydrothermal interaction in the serpentinites from Northern Central Indian Ridge
(Current Science Association, 2009)Serpentinites and serpentinized harzburgites were collected from a ridge-transform intersection at 6 ddgrees 39 minutes S-68 degrees 19 minutes E from the Northern Central Indian Ridge. The degree of serpentinization is ... -
New records of Thecacineta cothurnioides and Trematosoma rotunda (Ciliophora, Suctorea) as epibionts on nematodes from the Indian Ocean
(Not clear, 2009)This article deals with the report of two suctorian ciliates species viz. Thecacineta cothurnioides Collin, 1909 and Trematosoma rotunda (Allgen, 1952) as epibionts on Tricoma sp. and Pseudochromadora sp. (Nematoda) ... -
Shallow gas charged sediments off the Indian west coast: Genesis and distribution
(Elsevier, 2009)Geophysical and geochemical surveys were carried out off Goa, central west coast of India, to understand the genesis and distribution of shallow gases in marine sediments. Shallow gas charged sediments within the water ... -
Effects of sudden stress due to heavy metal mercury on benthic foraminifer Rosalina leei: Laboratory culture experiment
(Elsevier, 2009)Laboratory culture experiments were carried out to understand the response of benthic foraminifer Rosalina leei to gradual as well as sudden addition of heavy metal mercury into the media. When mercury was added suddenly, ... -
Tidal circulation and salinity distribution in the Mandovi and Zuari estuaries: Case study
(American Society of Civil Engineers, 2009)The Mandovi and Zuari are two tropical estuaries along the west coast of India, characterized by mixed tides with semidiurnal dominance and heavy fresh water influx during the southwest monsoon (June to September). Previous ... -
Drifting and meandering of Olive Ridley Sea turtles in the Bay of Bengal: Role of oceanic Rossby waves
(Taylor & Francis, 2009)Olive Ridley turtles in the Bay of Bengal are previously thought to migrate southward from their nesting ground, along the east coast of India (Orissa coast), towards Sri Lanka. Surprisingly, three of the four Platform ... -
Benthic fluxes in a tropical estuary and their role in the ecosystem
(Elsevier, 2009)In-situ measurements of benthic fluxes of oxygen and nutrients were made in the subtidal region of the Mandovi estuary during premonsoon and monsoon seasons to understand the role of sediment-water exchange processes in ... -
Late quaternary fluctuations in carbonate and carbonate ion content in the northern Indian ocean
(2008)The proposed research is aimed to understand the Late Quaternary fluctuations in carbonate and carbonate ion content in the northern Indian Ocean with the following specific objectives: 1) To identify suitable paleocarbonate ... -
Study of the role of microbes as source and sink of Dimethyl Sulphide in Dona Paula bay
(2008)The present work examines the link between the distribution of DMS (P) to abiotic and biotic variables in the adjacent bay, at Dona Paula on a temporal scale both at short diurnal and long annual scales. The objective of ... -
Ecological Studies and Molecular Characterization of Thraustochytrids and Aplanochytrids from Oceanic Water Column
(2009)Thraustochytrids, aplanochytrids and labyrinthulids belong to the Class Labyrinthulomycetes of the Kingdom Straminipila or Chromista, which also includes diatoms, brown algae, oomycetan fungi and a variety of photosynthetic ... -
Numerical modelling of tidal circulation and studies on salinity distribution in Mandovi and Zuari estuaries
(2008)The objectives of the thesis were to determine the characteristics of tidal propagation and salinity distribution in the Mandovi and Zuari estuaries using a hybrid network numerical model. A hybrid network model, consisting ... -
Cascade Wittig reaction-double Claisen and Cope rearrangements: one-pot synthesis of diprenylated coumarins gravelliferone, balsamiferone, and 6,8-diprenylumbelliferone
(Elsevier, 2009)A cascade Wittig reaction-double Claisen and Cope rearrangements has been employed for a one-pot synthesis of diprenylated coumarins gravelliferone, balsamiferone, and 6,8-diprenylumbelliferone from a common precursor ... -
Effects of natural and human-induced hypoxia on coastal benthos
(European Geosciences Union, 2009)Coastal hypoxia (defined here as <1.42 ml L sup(-1); 62.5 mew M; 2 mg L sup(-1), approx. 30% oxygen saturation) develops seasonally in many estuaries, fjords, and along open coasts as a result of natural upwelling or from ...