Institute's contributions: Recent submissions

Now showing items 3641-3660 of 9252

    • Nitrous oxide in the Arabian Sea 

      Naqvi, S.W.A.; Noronha, R.J. (Pergamon, 1991)
      Measurements of nitrous oxide (N2O) at 16 stations in the Arabian Sea reveal high degrees of surface saturation (186 plus or minus 37%) and consequently large atmospheric fluxes of N2O (4.46 plus or minus 2.60 mu mol ...

    • A toxin from Holothuria leucospilota (Brandt) 

      Jayasree, V.; SenGupta, R.; Bhavanarayana, P.V. (Oxford and IBH, New Delhi, 1991)
      Holothurians are marine echinoderms. Despite their limited mobility and absence of a protective hard shell, they are seldom preyed upon. Thus, one would expect them to have some type of chemical defence mechanism in the ...

    • Arsenic content in certain marine brown algae and mangroves from Goa coast 

      Rao, Ch.K.; Chinnaraj, S.; Inamdar, S.N.; Untawale, A.G. (NISCAIR, New Delhi, 1991)
      Arsenic has been estimated in 7 species each of brown algae and mangroves, including different parts of Sargassum cinereum. Arsenic is more concentrated in brown algae [concentration /factor(CF) range 1.5 - 7 x 10 super(3)] ...

    • Distribution of nutrients in the Periyar river estuary 

      Devi, K.S.; Sankaranarayanan, V.N.; Venugopal, P. (NISCAIR, New Delhi, 1991)
      Levels of phosphate, nitrate, nitrite and ammonia from 9 stations in the Cochin backwaters in an area extending from barmouth to 21 km upstream, up to an industrial belt at Eloor (Alwaye) were estimated. Inorganic phosphate ...

    • Some aspects of nutrient chemistry of the Caribbean Sea 

      Rajendran, A.; DileepKumar, M.; Khan, A.A.; Knight, D.; O'Reilly, A.; Yen, I.C.; Wagh, A.B.; Desai, B.N. (Institute of Marine Affairs, 1991)
      Chemical oceanographic studies were conducted at 45 stations in the Caribbean Sea, covering both nearshore and offshore areas. The concentrations of oxygen in the upper mixed layers varied between 180 and 220 mu mol.dm ...

    • Biodegradation and anticholinesrerase activity of methyl isocyanate in the aquatic environment of Bhopal 

      SenGupta, R.; Sarkar, A.; Kureishy, T.W. (Pergamon, 1991)
      A study on the biodegradation of methyl isocyanate (MIC) and its anticholinesterase activities in different tissues of various species of fishes from the lakes of Bhopal was carried out over a period of 6 months with ...

    • Pesticide residues in sediments from the west coast of India 

      Sarkar, A.; SenGupta, R. (Pergamon, 1991)
      An average of 55,000 t of pesticides (including or organochlorine compounds) are used every year in India for agricultural purposes. The cumulative effects of these pesticides on the coastal environment can be expected to ...

    • Remote sensing of oil slicks 

      Fondekar, S.P.; Rao, L.V.G. (Current Science Association, Bangalore, India, 1991)
      Airborne remote sensing is very useful for oil-spill monitoring ans surveillance. It ranks very high among available methods due to its capability of large area coverage with good resolution and speed for detection of oil ...

    • Evaluation of the toxicity of organic matter in marine sediments 

      Sarkar, A. (Elsevier, 1991)
      The inhibitory effects of the organics from the sediment along the east coast of India on acetylcholinesterase (AChE) in-vitro were evaluated. Sediment samples collected from the surface layers at various depths were ...

    • N2O production in the ocean 

      Naqvi, S.W.A. (MacMillan, 1991)

    • Determination of organochlorine pesticides in Indian coastal water using a moored in-situ sampler 

      Sarkar, A.; SenGupta, R. (CAS in Marine Biology, Parangipettai, 1991)
      An attempt has been made to determine the concentration of different organochlorine pesticides in the seawater off the central West Coast of India using an in-situ-sampler. The Seastar in-situ sampler is an instrument, ...

    • Solar desalination, brine and fine chemicals - a preliminary report 

      Shirodkar, P.V.; Nagarajan, R. (Indian Association for Limnology and Oceanography, 1991)
      Solar stills put into operation by taking known quantities of sea water of different salinities varying from 27.75-36.27 x 10 super(3) during April-May 1990, indicated fresh water yield of 55-68% (av. 64). The volumes of ...

    • Bioactivity and chemical ecology of some intertidal animals 

      Parulekar, A.H.; Shirwaikar, P. (Oxford and IBH, New Delhi, 1991)
      Some marine organisms from intertidal regions of the Indian Coast have shown promising activities. Marine sponges, coelenterates, molluscs, and echinoderms are found to possess rich sources of novel chemical compounds. The ...

    • Bioactivity of marine organisms. Part 3. Screening of marine algae of Indian coast for biological activity 

      Kamat, S.Y.; Wahidullah, S.; Naik, C.G.; DeSouza, L.; Jayasree, V.; Ambiye, V.; Bhakuni, D.S.; Goel, A.K.; Garg, H.S.; Srimal, R.C. (Indian Association for Limnology and Oceanography, 1991)
      Ethanolic extracts from Indian marine algae have been tested for anti-viral, anti-bacterial, anti-fungal, anti-fertility, hypoglycaemic and a wide range of pharmacological activities. Of 34 species investigated 17 appeared ...

    • Copepods of the nearshore waters of Bombay 

      Gajbhiye, S.N.; Stephen, R.; Nair, V.R.; Desai, B.N. (NISCAIR, New Delhi, 1991)
      Variability in copepod population was studied along 2 transects off Mahim and Versova (Bombay, Maharashtra, India) during November 1979 to December 1980 covering eight stations from the creek towards the offshore area. ...

    • Occurrence of thraustochytrid fungi in corals and coral mucus 

      Raghukumar, S.; Balasubramanian, R. (NISCAIR, New Delhi, 1991)
      Occurrence of thraustochytrid fungi in corals, fresh coral mucus and floating and attached mucus detritus from the Lakshadweep Islands in the Arabian Sea was studied. Corallochytrium limacisporum Raghukumar, Thraustochytrium ...

    • Nutrients and primary production in a shallow stratified ecosystem in the Iroise Sea 

      Birrien, J.L.; Wafar, M.V.M.; LeCorre, P.; Riso, R. (Cambridge University Press, 1991)

    • First records and a comparative study of larvae of Arnoglossus tapeinosoma (Bleeker) and Arnoglossus aspilos (Bleeker) (Bothidae-Pisces) from the Indian Ocean and adjacent waters 

      Devi, C.B.L. (Kerala State Council for Science, Technology and Environment, 1991)

    • The killer tides 

      Devassy, V.P.; Bhat, S.R. (NISCAIR, New Delhi, 1991)
      Toxic red tide is a disastrous phenomenon causEd. by sudden blooming of certain killer microorganisms often encountered in the seas. Certain killer red tides have caused wide-spread losses to human life and to the fishing ...

    • Assessment of cyst production potential of a natural population of brine shrimp Artemia 

      Royan, J.P.; Sumitra-Vijayaraghavan; Krishnakumari, L. (NISCAIR, New Delhi, 1991)
      Studies on a natural population of Artemia in the salterns of Jamnagar indicated that the population is parthenogenetic. These shrimps reach a maximum size of 9 mm. Number of cysts per brood varies from 10-32. Adults form ...