DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6661-6680 of 9429
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Structure and variability of the Leeuwin current in the south eastern Indian Ocean
(Indian Geophysical Union, 2005)The present study analyses the structure and variability of the Leeuwin Current in the south Indian Ocean. Besides the historic hydrographic dataset various observations made during WOCE, TOGA and other experiments conducted ... -
Role of low level flow on the summer monsoon rainfall over the Indian subcontinent during two contrasting monsoon years
(Indian Geophysical Union, 2002)The summer monsoon rainfall over the Indian subcontinent shows 1 large inter-annual variability in three important aspects, namely, the onset date, quantum of monsoon rainfall and the monsoon activity within the monsoon ... -
Morphological features in the Bay of Bengal
(Indian Geophysical Union, 2000)Bengal Fan is one of the world's largest submarine fans having an area of 2.8-3.0 xl06 sq.km. It extends from Ganges/Brahmaputra delta around 20° N latitude to south of 7° S, with a maximum width of about 1000 km around ... -
Life spans of planktonic foraminifers: New sight through sediment traps
(The Palaeontological Society of India, 2003)Determinig the life spans of planktonic foraminifera is vital in view of their increasing use for palaeoclimtic studies. Till date all the estimates about life span of planktonic foraminifers are based on the extrapolation ... -
Taxonomy and distribution of benthic foraminifera from the sediments of Palk Strait, Tamil Nadu, east coast of India
(The Palaeontological Society of India, 2002)A systematic study of benthic foraminifera has been made on 42 sediment samples collected between Mandapam and Kodiyakkarai, off Palk Strait, Tamil Nadu, India. A total of 102 benthic foraminiferal species belonging to 52 ... -
A note on the laboratory culture of benthic foraminifera collected from nearshore region off Goa, India
(The Palaeontological Society of India, 1996)A laboratory culture programme is established to extend credibility to foraminiferal-based techniques being used to generate the high-resolution proxy records for palaeoclimatic reconstruction. In order to obtain living ... -
The intriguing relationship between coiling direction and reproductive mode in benthic foraminifera
(The Palaeontological Society of India, 1989)Changes in coiling direction in foraminifera have been used extensively as proxy data for paleoclimates. However, most of the studies centred around planktonic foraminifera, and various causes (including reproductive mode) ... -
Composition and origin of buried ferromanganese nodules from central Indian Ocean
(Geological Society of India, 2006)Five buried ferromanganese nodules were recovered at different depths of 167-169 cm (A), 172 174 cm (B), 228 230 cm (C), 328 330 cm (D) and 418 420 cm (E) in a 5 m sediment core from the siliceous sediment of Central Indian ... -
Research vessels
(New Delhi: Department of Ocean Development, 1988)The role of the research vessels as a tool for marine research and exploration is very important. Technical requirements of a suitable vessel and the laboratories needed on board are discussed. The history and the research ... -
Shipboard and laboratory equipment
(New Delhi: Department of Ocean Development, 1988)The polymetallic nodules occur at an average depth of 4500 m. Adequate equipment and techniques are required for the exploration at such depths. Shipboard and various laboratory equipments for the sampling of polymetallic ... -
Nodules of the Central Indian Ocean Basin
(New Delhi: Dep Ocean Dev, 1988)The Central Indian Ocean Basin (CIOB) extends from 0 degree S to 25 degrees S latitudes and 70 degrees E to 90 degrees E longitudes The major portion of CIOB is an abyssal plain and the plains are believed to be developed ... -
Manpower
(New Delhi: Department of Ocean Development, 1988)The recruitment, training and deployment of manpower for scientific work during an oceanographic expedition is discussed. Fifty scientists and 50 technicians in various disciplines of oceanography were recruited. A training ... -
Techniques and results
(New Delhi: Department of Ocean Development, 1988)An area of about 300,000 sq km in the Central Indian Ocean Basin (CIOB) was demarcated to estimate the abundance, grade and reserves of the nodules This area was further demarcated into two regions of 150,000 sq km each A ... -
History and background of the project
(New Delhi: Department of Ocean Development, 1988)The history of oceanography, the discovery of manganese nodules and the background of the developments in nodule research and mining is given The first nodules were collected in 1981 on board the research vessel R V Gaveshani ... -
Cryopreservation studies on the marine diatom Navicula subinflata Grun
(Seaweed research and Utilization Association, 2000)Very little work has been done on marine unicellular algae regarding cryopreservation. The present work was, therefore, undertaken to study the effect of different cryoprotectants and cryopreservation on the growth of ... -
Relationship of fouling diatom number and chlorophyll-a value from Zuari estuary, Goa (west coast of India)
(Seaweed research and Utilization Association, 2000)The diatom cell biomass is expressed in terms of diatom number and chlorophyll -a value on panel of glass slide. The Chlorophyll value in a water body is indicative of the productivity. The present study was conducted to ... -
Growth of fouling diatoms from the Zuari estuary, Goa (west coast of India) under different salinities in the laboratory
(Seaweed research and Utilization Association, 2000)Diatoms take part in the initial process of fouling i.e. primary film formation. In order to understand the growth of the diatoms under different salinity conditions in the laboratory, this work was undertaken. Fouling ... -
Effect of different temperature regimes on the chlorophyll a concentration in four species of Antarctic macroalgae
(Seaweed research and Utilization Association, 2004)Four species of benthic macroalgae belonging to Rhodophyta namely Palmaria decipiens (Reinsch) Ricker, Phyllophora antarctica A. et. E. S. Gepp, Porphyra endiviifolium (A.et. E. S. Gepp.) Chamberlain and Iridaea cordata ... -
Impact of sewage on the distribution, abundance and community structure of rocky intertidal macroalgae of the Colaba Coast, Mumbai, India
(Seaweed research and Utilization Association, 2003)Three transects T1, T2, T3 in the intertidal area of Colaba were sampled for macroalgal distribution, abundance, species composition, diversity and standing stock estimation during 1997-98. Transect T2 was in the vicinity ... -
Isolation, purification and characterization of xylanase produced by Arthrobacter sp. MTCC 5214 when grown in solid-state fermentation
(Elsevier, 2006)Thermoalkalophilic Arthrobacter sp. produced extracellular xylanase, when wheat bran, rice husk, rice bran and bagassae were used as carbon source under solid-state fermentation (SSF). The xylanase enzyme was isolated by ...