DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6721-6740 of 9429
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Bothid larvae (Pleuronectiformes - Pisces) of the Gulf of Thailand and South China Sea
(Indian Fisheries Association, 2001)The larvae of bothids were found to be sparsely distributed in the Gulf of Thailand and South China Sea being only 11.9% in the Naga Expedition Collections. They were confined mostly to the coastal waters and were found ... -
Macrobenthos off Mahim (Bombay), west coast of India in relation to coastal pollution and aquaculture
(Indian Fisheries Association, 1995)Deterioration of water quality clearly indicated a moderate to severe coastal pollution around Mahim whereas a relatively healthy marine environment towards offshore was noticed. Foraminiferans, polychaetes, crustaceans ... -
Oceanic ferromanganese deposits: Future resources and past-ocean recorders
(Mineralogical Society of India, 2000)Oceanic ferromanganese deposits occur mainly in two forms, as nodules and as encrustations; while the nodules form a carpet on the deep-sea abyssal plains, encrustations occur as caps on seamounts. The genesis of nodules ... -
Application of natural generalised inverse technique in reconstruction of gravity anomalies due to a fault
(Indian National Science Academy, 2003)Generalised Inverse (GI) and Singular Value Decomposition (SVD) are well known mathematical techniques exploited in many areas of applied science including the earth sciences. Simulation experiments on gravity anomaly due ... -
Organic matter distribution in the continental shelf sediments, off Kochi, west coast of India
(Indian Petroleum Publishers, 2003)Organic matter was analysed on the silt-clay fraction of forty eight sediment samples from the continental shelf off Kochi, west coast of India. It was found to be high in the recent, near shore silt-clay predominant ... -
Length weight relationship of Sufflamen fraenatus (Latreille, 1804) and Zenodon niger (Ruppell, 1835)
(Central Marine Fisheries Research Institute, India, 2005)The relationship between total length and total weight in balistids is not significantly different in males and females. The common equation for both the sexes in Sufflamen fraenatus is Log W= -9.0429+2.7296 log L or ... -
Biomass and quantitative indices of phytoplankton in Mandovi-Zuari estuary
(Central Marine Fisheries Research Institute, India, 2003)Biomass in terms of Chlorophyll a, cell density and quantitative indices of phytoplankton, from two estuarine stations and a coastal station off Goa has been studied during 1997-98. Biomass in terms of Chlorophyll a averaged ... -
Effects of eyestalk ablation on moulting and growth of penaeid prawn Metapenaeus dobsoni (de Man)
(NISCAIR, CSIR, 2004)Penaeid prawns, Metapenaeus dobsoni of two different size ranges were ablated both unilaterally (UEA) and bilaterally (BEA) and subjected to individual study. The UEA prawns consumed almost the same amount of food as the ... -
Selected chemo-ecological studies of marine opisthobranchs from Indian coasts
(Indian Institute of Science, 2001)The report on chemical and ecological studies of benthic marine invertebrates from the southern coast of the Indian peninsula is summarised. In particular, the paper is centred on the chemical investigations of opisthobranch ... -
Benzoxazinoids from Acanthus illicifolius
(Indian Institute of Science, 2001)1,4-Benzoxazinone derivatives as (2R)-2-beta-D-glucopyranosyloxy-2H-1,4-benzoxazine-3(4H)-one (GHBOA, blepharin) (1) and (2R)-2-beta-D-glucopyranosyloxy-4-hydroxy-1,4-benzoxazine 3-one (GDIBOA) (2) have been isolated from ... -
Secondary metabolites from the gorgonian Echinomuraceae splendens (Thomson and Simson)
(NISCAIR, CSIR, 2002)Two xanthine derivatives, caffeine (1,3,7-trimethyl-xanthine 1) and its 2-O-methyl analog 2, N-methylpyrazole-5-carboxylic acid 3 and a tetrahydroxysterol, 1b, 3b, 5a, 6b-tetrahydro-xycholes-ane 4 have been isolated from ... -
Role of 12 S mitochondrial gene on dimorphism and coiling direction in benthic foraminiferal species Pararotalia nipponica
(Gondwana Geological Society, 2003)Despite the extensive use of foraminiferal proxies for paleoclimatic reconstructions, the question how and why morphologic variations of foraminifera are regulated by climatic changes remains a mystery. The answer to such ... -
Distribution of benthic foraminifera within oxygen minima zone, off central west coast, India
(Gondwana Geological Society, 2003)A total of 128 surface sediment samples (76 grab and 52 core top samples) were analyzed for benthic foraminiferal contents from the region off Goa, India in the eastern Arabian Sea upto a water depth of 3300 m. 195 species ... -
Problems of global warming and role of micropaleontologists - Presidential Address
(Gondwana Geological Society, 2003) -
Photo-geomorphologic study of representative islands of Lakshadweep
(Gondwana Geological Society, 1999)The Lakshadweep group of islands is scattered in the Arabian Sea about 200 to 400 km off the west coast of Kerala, India. The general topography of islands is hummocky to flat with steeper shore on the east. The coralline ... -
Mauritius: A journey from beach to laboratory
(Geological Survey of India, 2004)Mauritius has the great potential to harness resources from the ocean. This would require reduction in the distance between the majestic beach cultures to serious R&D activities. With the formation of Mauritius Oceanography ... -
Seasonal variation of the environmental parameters along Fort Cochin Beach
(Fishery Technology Society, India, 2000)Monthly observations on heterotrophic bacteria, organic carbon, temperature, salinity, dissolved oxygen, inorganic phosphate, nitrate, nitrite and ammonia from surface water and from water table level during high tide, mid ... -
Occurrence of Vibrio cholerae non 01 and their dispersion phenomena in the coastal waters at Mangalore
(Fishery Technology Society, India, 1999)Occurrence of Vibrio cholerae non 01 and their dispersion in the coastal waters of Mangalore, Karnataka, India for three seasons were studied. The near-shore stations recorded comparatively higher incidence of these bacteria ... -
Production of giant freshwater prawn postlarvae in penaeid prawn (shrimp) hatchery: An experience
(Fishing Chimes, 2000)A pilot scale penaeid prawn (shrimp) hatchery was established at the National Institute of Oceanography, Goa, India in 1996 with an installed production capacity of 2 million postlarvae (PL 20) as part of the Technology ... -
A combined approach of DNA probe and RFLP for family and species identification of larval stages of commercially important aquatic species: A study on the surfclam Spisula solidissima
(Fishing Chimes, 2003)This paper deals briefly with a technique developed for the identification of the early stages of veligers of surfclam Spisula solidissima from the larval stages of other common bivalve species using a combination of DNA ...