Now showing items 101-120 of 129

    • Seasonal Variations in Secondary Production of the Mandovi-Zuari Estuarine System of Goa 

      Selvakumar, R.A.; Nair, V.R.; Madhupratap, M. (CSIR-NISCAIR, 1980)
      Mean rates of secondary production in the Mandovi, Zuari and Cumbarjua canal, Goa, India were 16.9, 35.9 and 32.4 mg C/m2/day respectively. The general hydrographic conditions of the Zuari were responsible for the higher ...
    • Some Aspects of Prawn Ecology in Cochin Backwaters 

      Paulinose, V.T.; Balasubramanian, T.; Aravindakshan, P.N.; Menon, P.G.; Kutty, M.K. (Indian Association for Limnology and Oceanography, 1981)
      Prawn population of a large perennial tidal pond and three other connected smaller ponds in the Cochin backwaters were studied in relation to the environment occurring in these ponds. While the large pond afforded a more ...
    • Some Physical Characteristics of Andaman Sea Waters during Winter 

      RamaRaju, D.V.; Gouveia, A.D.; Murty, C.S. (CSIR-NISCAIR, 1981)
      Based on the data collected during the cruises of R V Gaveshani in Jan-Feb of 1979 and 1980 around the Andaman Islands, 6 transects are selected, along which the present study on some physical properties of the waters ...
    • Sound speed structure in the Arabian Sea and the Bay of Bengal 

      PrasannaKumar, S.; Navelkar, G.S.; Murty, T.V.R.; Somayajulu, Y.K.; Murty, C.S. (NISCAIR, New Delhi, 1993)
      Sound speed computed from annual mean temperature and salinity data of Levitus reveals that spatial variation in the Arabian Sea is greater than that in the Bay of Bengal. Maximum spatial variation of sound speed in the ...
    • Spatio-temporal distributions of delta<sup>18</sup>O, delta D and salinity in the Arabian Sea: Identifying processes and controls 

      Deshpande, R.D.; Muraleedharan, P.M.; Singh, R.L.; Kumar, B.; Rao, M.S.; Dave, M.; Sivakumar, K.U.; Gupta, S.K. (Elsevier, 2013)
      Isotopic compositions ( delta<sup>18O</sup> and deltaD) and salinity (S) of 683 surface water samples from the Arabian Sea (AS) collected during 2008–2010, were measured to understand the factors controlling the spatio-temporal ...
    • Studies on experimental culture of a marine ciliate Fabrea salina 

      Rattan, R.; Ansari, Z.A.; Chatterji, A. (Oxford and IBH, Calcutta, 1999)
      Studies were conducted on the culture of a marine ciliate, Fabrea salina in the laboratory condition. Three types of inert feed; commercial yeast, fermented wheat bran and fermented rise bran were tested to study their ...
    • Study of sub-surface sediments from northern Indian Ocean: Oceanic responses to climatic changes 

      Nigam, R.; Borole, D.V.; Hashimi, N.H. (Palaeontol. Soc. India, 1994)
      The mean diameter and variation in isotopic composition (delta sup(18)) in thest of Orbulina universa d'Orbigny have been measured in a sediment core collected from 3869 m water depth near the Carlsberg Ridge, northern ...
    • Sub-hourly changes in biogeochemical properties in surface waters of Zuari estuary, Goa 

      Anand, S.S.; Anju, K.J.; Mathew, D.; DileepKumar, M. (Springer, 2014)
      Processes in natural waters are highly variable in time and space. Although changes are expected in short-time scales, how short one could get to measure reliably is subjective to sampling strategies and methodologies. ...
    • T-S variability and volume transport in the central Bay of Bengal during southwest monsoon 

      Gopalakrishna, V.V.; Pednekar, S.M.; Murty, V.S.N. (NISCAIR, CSIR, 1996)
      The variability of temperature and salinity along 11 degrees N and 12 degrees N sections in the Bay of Bengal during southwest monsoon months (July-September) was found to be large in the upper 200 m west of 83 degrees E ...
    • The behaviour of aluminium in waters of the Mandovi estuary, west coast of India 

      Upadhyay, S.; SenGupta, R. (Elsevier, 1995)
      The concentration of dissolved Al in both the freshwater (approx 0.08 - 0.23 mu M) and seawater (less than or equal to 0.07 mu M) endmembers of the Mandovi estuary is low, the former being always greater in magnitude than ...
    • The effect of salinity on some endocommensalic ciliates from shipworms 

      Santhakumari, V. (Society of Fisheries Technologists, 1985)
      The ciliates, Nucleocorbula adherens, Boveria teredinidi, Trichodina balakrishnia, Thigmozoon fencheli and Nyctothereus marina, live inside the mantle cavity of the ship-worms in the estuaries and backwaters of the south-west ...
    • The role of salinity on the dynamics of the Arabian Sea mini warm pool 

      Nyadjro, E.S.; Subrahmanyam, B.; Murty, V.S.N.; Shriver, J.F. (American Geophysical Union, 2012)
      Warmer (more than 28 degrees C) sea surface temperature (SST) occurs in the South Eastern Arabian Sea (SEAS, 5 degrees N-13 degrees N, 65 degrees E-76 degrees during March-April, and is known as the Arabian Sea Mini Warm ...
    • The salty seas 

      DineshKumar, P.K. (NISCAIR, CSIR, 1996)
      This article highlights on the reasons for being seawater salty and provides answers to these.
    • Tidal cycle and the environmental features of Cochin backwater (a tropical estuary) 

      Qasim, S.Z.; Gopinathan, C.K. (Indian Academy of Sciences, Bangalore, 1969)
      In the Cochin Backwater, Kerala, India the tides are of a mixed, semidiurnal type with a maximum range of about 1 m. Two high and two low water-marks occur each day, with an appreciable difference in range and time. The ...
    • Tidal Influence on the Seasonal Variation in Current and Salinity around Willingdon Island 

      Varma, P.U.; Pylee, A.; RamaRaju, V.S. (Indian Association for Limnology and Oceanography, 1981)
      The general distribution of current and salinity of Mattancherry and Ernakulam channels and the Cochin Harbour mouth, Kerala, India is presented and discussed in relation to the tide. During monsoon season stratification ...
    • Time and space variations of monsoonal upwelling along the west and east coasts of India 

      Naidu, P.D.; RameshKumar, M.R.; RameshBabu, V. (Pergamon, 1999)
      The study of monthly mean local temperature anomaley (LTA defined as the difference between coastal and mid-ocean sea surface temperature), and Ekman transport along the west and east coasts of India based on 60-year data ...
    • Time-dependence of salinity in monsoonal estuaries 

      Vijith, V.; Sundar, D.; Shetye, S.R. (Elsevier, 2009)
      The theories and classification schemes commonly used for understanding estuarine dynamics often refer to a steady state of the estuary in which the salinity field is time-independent. In this state salinity-ingress into ...
    • Transducers and microprocessors in oceanographic applications 

      Desai, R.G.P.; Desa, E. (Indian Association for Limnology and Oceanography, 1985)
      Transducers used for the sensing of the ten most measured marine parameters have been described in this paper. The ten parameters have been classed under 5 sensor types, namely temperature, pressure, salinity, currents and ...
    • Variations of dissolved oxygen in Mandovi and Zuari estuaries 

      DeSousa, S.N.; SenGupta, R. (CSIR-NISCAIR, 1986)
      During non-monsoon months the estuaries were well mixed showing uniform oxygen concentrations from surface to bottom. However, during monsoon months both the estuaries showed stratified conditions with surface water showing ...
    • Various approaches to the modelling of large scale 3-dimensional circulation in the Ocean 

      Shaji, C.; Bahulayan, N.; Rao, A.D.; Dube, S.K. (NISCAIR, CSIR, 1998)
      In this paper, the three different approaches to the modelling of large scale 3-dimensional flow in the ocean such as the diagnostic, semi-diagnostic (adaptation) and the prognostic are discussed in detail. Three-dimensional ...