Institute's contributions: Recent submissions

Now showing items 3701-3720 of 9252

    • Dipeptides from the red alga Acanthopora spicifera 

      Wahidullah, S.; DeSouza, L.; Kamat, S.Y. (Pergamon, 1991)
      An investigation of red alga Acanthophora spicifera afforded the known peptide, aurantiamide acetate and a new diastereoisomer of this dipeptide (dia-aurantiamide acetate). This is a first report of aurantiamide acetate ...

    • Strategy for increasing marine fish production in Goa 

      Parulekar, A.H. (ICAR Research Complex, Old Goa, 1991)

    • Coral reefs - Ecology and fisheries 

      Wafar, M.V.M. (NIO, Goa, 1991)

    • Fungal invasion of massive corals 

      Raghukumar, C.; Raghukumar, S. (Blackwell, 1991)
      Five species of corals from the Andaman Islands in the Bay of Bengal (Indian Ocean) have been regularly found to have single or multiple necrotic patches. The occurrence of such corals with necrotic patches varied from ...

    • Floristic composition of the deltaic regions of India 

      Untawale, A.G.; Jagtap, T.G. (Geological Society of India, 1991)
      Various abiotic and biotic factors as well as the coastal geomorphology, influence formation of deltaic environment. The cover of salt tolerant flora is of significance in the stabilization of the delta. The root system ...

    • Distribution of seagrasses along the Indian coast 

      Jagtap, T.G. (Elsevier, 1991)
      Seagrass environments, from the main coast of India, Lakshadweep and Andaman Islands, were surveyed for seagrass and marine algal composition. Extensive seagrass meadows and the maximum number of species (seven genera and ...

    • Mapping of seagrass meadows from the Lakshadweep Islands (India), using aerial photographs 

      Jagtap, T.G.; Inamdar, S.N. (Indian Society of Remote Sensing, Deharadun, 1991)
      Seagrass meadows from the Lakshadweep Islands were mapped with the help of black and white aerial photographs. A maximum of 40 ha seagrass cover was estimated in the lagoon of Minicoy, followEd. by Kavaratti (43 ha.). The ...

    • Computerizing marine biota: a rational approach 

      Chavan, V.S.; Chandramohan, D.; Parulekar, A.H. (1991)
      Data on marine biota while being extensive are also patchy and scattered; thus making retrieval and dissemination of information time consuming. This emphasise the need for computerizing information on marine biota with ...

    • Marine wind data presentation using wind transition matrix 

      Mascarenhas, A.; Gouveia, A.D.; Desai, R.G.P. (NISCAIR, New Delhi, 1992)
      One of the methods to simulate the random wind behaviour through time is to use historical wind data presented in the form of wind transition matrix. Here it is assumed that, the probability that the wind will shift from ...

    • Detailed bathymetric surveys in the central Indian Basin 

      Kodagali, V.N.; KameshRaju, K.A.; Ramprasad, T.; George, P.; Jaisankar, S. (International Hydrographic Bureau, France, 1992)
      Over 420,000 line kilometers of echo-sounding data was collected in the Central Indian Basin. This data was digitized, merged with navigation data and a detailed bathymetric map of the Basin was prepared. The Basin can be ...

    • Tectonic development of Graben over the Astrid ridge off Dronning Maud Land, Antarctica 

      Rao, D.G.; Ramana, M.V.; Sarma, K.V.L.N.S. (Scientific Publishing Company, Tokyo, 1992)

    • Marine magnetic studies in the northern Bay of Bengal, preliminary results 

      Ramana, M.V.; Subrahmanyam, V.; Krishna, K.S.; Chaubey, A.K.; Sarma, K.V.L.N.S.; Murty, G.P.S.; Murty, P.S.N.; Rao, D.G.; Mittal, G.S.; Drolia, R.K. (Oxford and IBH, New Delhi, 1992)
      The bathymetric and total magnetic intensity data collected along six E-W tracks were analysed and presented as stacked anomaly profiles. A first order basement configuration model was generated across the Bay of Bengal. ...

    • A mid-Holocene strandline deposit on the inner shelf of Cochin, West coast of India 

      Reddy, N.P.C.; Rao, N.V.N.D. (Geological Society of India, 1992)

    • Laminae and grain-size measures in beach sediments, east coast beaches, India 

      Chauhan, O.S. (Coastal Research Foundation, 1992)
      The studies of size parameters in 1.8 mm slices in 36 4-cm long cores from different physiographic units of 4 beaches along the east coast of India, having beach states from "reflective" to "dissipative", suggest significant ...

    • Evidence for change in depositional environment in the Arabian Sea 

      Rao, P.S.; Rao, Ch.M. (Oxford and IBH, New Delhi, 1992)
      Sediments of late Pleistocene and Holocene periods, from a 12 m long core collected at a depth of 3627 m from the Arabian Sea, have been studied in order to understand the depositional environment. Sub-samples selected at ...

    • Heavy mineral occurrence off Hazira, west coast of India 

      Vora, K.H.; Mislankar, P.G.; Gujar, A.R. (Indian Society of Earth Sciences, Calcutta, 1992)
      The occurrence of heavy mineral placers on the west coast of India are well known from Konkan and Malabar Coast. However, a geological and geophysical investigation (including echosounding and side scan sonar profiles and ...

    • Geological factors associated with megabenthic activity in the Central Indian Ocean Basin 

      Sharma, R.; Rao, A. (Pergamon, 1992)
      Observations from more than 1000 seabed photographs show: a high frequency of occurrence (85-100%) of organisms and their lebensspuren in sediment-covered areas; a fairly close association (43-75%) with the nodules, with ...

    • Late Quaternary sedimentation in eastern Bay of Bengal 

      Chauhan, O.S.; Mascarenhas, A.; Paropkari, A.L.; Rao, Ch.M. (Oxford and IBH, New Delhi, 1992)
      This study presents variations in various size measures, calcium carbonate, organic carbon, clay mineralogy and major and trace elements in a core (5.40 m long, 2713 m depth) from the eastern Bay of Bengal. On a CM diagram, ...

    • Rare earth element geochemistry of ferromanganese deposits of the Indian Ocean 

      Nath, B.N.; Balaram, V.; Sudhakar, M.; Pluger, W.L. (Elsevier, 1992)
      Fourteen manganese nodules and three ferromanganese crusts from the Indian Ocean were analysed for major and minor elements and the 14 naturally occurring rare earth elements (REE). The REE were analysEd. by inductively ...

    • Marine magnetic anomalies in the northeastern Arabian Sea 

      Bhattacharya, G.C.; Chaubey, A.K.; Murty, G.P.S.; Rao, D.G.; Scherbakov, V.S.; Lygin, V.A.; Philipenko, A.I.; Bogomyagkov, A.P. (Oxford and IBH, New Delhi, 1992)
      Based on the analysis of some additional magnetic profiles, an updated correlation and identification of the sea-floor spreading type magnetic lineations in the northeastern Arabian Sea is presented. The anomaly 24 A-B ...