DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6811-6830 of 9513
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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 ... -
Abundance and diversity of chaetognaths from the Rodriguez Triple Junction area of the Indian Ocean
(The Deccan Geographical Society, 2000)Chaetognaths from the Rodriguez Triple Junction and adjacent parts of the Indian Ocean were studied based on zooplankton samples collected during July to September 1993. Chaetognaths population drastically reduced to the ... -
Role of ocean in the genesis and annihilation of the core of the warm pool in the southeastern Arabian Sea
(India Meteorological Department, 2005)The earlier hypothesis, stated in the ARMEX (Arabian Sea Monsoon Experiment) Science Plan, that the ocean plays an important, but passive, role in the genesis of the core of warm pool in the southeastern Arabian Sea (SEAS) ... -
Studies on fouling diatoms from the Zuari Estuary, Goa (west coast of India)
(Seaweed research and Utilization Association, 2000)Very few studies are available in density of fouling diatoms from Zuari estuary, Goa, India. Hence this work was undertaken. In all 49 species of fouling diatoms belonging to 19 genera were recorded on glass slide as panels ... -
Planktonic diatoms of the Zuari estuary, Goa (west coast of India)
(Seaweed research and Utilization Association, 2000)During the studies on fouling diatoms in Zuary estuary the overlying surface diatoms were also studied for comparison. In all 66 spp. of planktonic diatoms has been recorded, belonging to 29 genera. Out of these, 36 species ... -
Reproductive biology of the masked triggerfish Sufflamen fraenatus
(Marine Biological Association of India, 2005)The reproductive biology of the masked triggerfish Sufflamen fraenatus was studied. Three distinct stages, viz. immature, maturing and mature were identified based on the external appearance of the ovary and the ova diameter ... -
Multivariate statistical study with a factor analysis of foraminiferal fauna from the Chilka Lake, India
(Marine Biological Association of India, 2003)Foraminiferal fauna from the surface sediments of the Chilka Lake along the east coast of India has been studied as regards distribution of its assemblages. From Q-mode factor analysis of the data, eight significant factor ...

