DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6701-6720 of 9429
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Laboratory experiment to record rate of movement of cultured benthic foraminifera
(ONGC, India, 2000)Sensitivity of foraminifera towards environmental / climatic changes, makes them a distinct proxy of paleoclimatic conditions. In order to use these micro organisms for paleoclimatic reconstruction, their response in the ... -
Can bathymetry be a discriminatory factor for the distribution of benthic foraminiferal morpho-groups in modern marine sediments?
(ONGC, India, 2000)The foraminiferal content of one hundred eight modern marine sediment samples off Vengurla-Cochin sector (ranging in water depth from 30 to 1330 m). West Coast of India was studied. A total of two hundred four foraminiferal ... -
Environmental influences on the species diversity, biomass and population density of soft bottom macrofauna in the estuarine system of Goa, west coast of India
(NISCAIR, CSIR, 2004)A total of 58 species were recorded belonging to polychaetes, molluscs, crustaceans and other minor groups in order of species abundance. eighteen species are new to the local fauna that were not reported earlier. The ... -
Sea level and currents in the upper reaches of the Cochin estuarine system during October 2000
(NISCAIR, CSIR, 2004)Data on sea level, currents, salinity and water temperature collected in the upper reaches of the Cochin estuarine system (southwest coast of India) during October 2000 have been analysed to understand their variability. ... -
Statistical forecasting of met-ocean parameters in the Cochin estuarine system, southwest coast of India
(NISCAIR, CSIR, 2003)Three different statistical forecasting techniques - autoregressive, sinusoidal and exponentially weighted moving average (EWMA) were used to forecast monthly values of meteorological and oceanographic (met-ocean) parameters ... -
Temperature error in digital bathythermograph data
(NISCAIR, CSIR, 2003)Simultaneous Digital Bathythermograph (DBT) and Nansen Cast data collected during two cruises of R.V. Gaveshani (GV-117 and GV-118) and archived in Indian Oceanographic Data Centre (IODC) are used to determine existing ... -
Intense blooms of Trichodesmium erythraeum (Cyanophyta) in the open waters along east coast of India
(NISCAIR, CSIR, 2003)Two blooms of Trichodesmium erythraeum were observed during April 2001, in the open waters of Bay of Bengal and this is the first report from this region. The locations of the bloom were off Karaikkal (10°58'N, 81°50'E) ... -
Currents in the Cochin estuarine system [southwest coast of India] during March
(NISCAIR, CSIR, 2003)Analysis of current meter data collected in the Cochin estuarine system (southwest coast of India) has been made, to understand variations of currents in the estuary for spring and neap tidal phases during March 2000. The ... -
Propagation of tides in the Cochin estuarine system, southwest coast of India
(NISCAIR, CSIR, 2003)Analysis of hourly data on sea level collected at four stations in the Cochin estuarine system, Kerala, India has been made to understand the tidal and non-tidal sea level variations inside the estuary, for spring and neap ... -
Tidal and non-tidal sea level variations at two adjacent ports on the southwest coast of India
(NISCAIR, CSIR, 2002)Analysis of sea level data collected at two adjacent ports (Cochin and Beypore) on the southwest coast of India has been made to understand tidal and non-tidal variations. Amplitudes of the tidal harmonic constituents ... -
Coherence between interannual variability of sea level with some surface met-ocean parameters at Cochin, southwest coast of India
(NISCAIR, CSIR, 2002)The interannual coherence of some surface met-ocean parameters (viz. SST, air temperature, atmospheric pressure, scalar wind speed, cross-shore and along-shore wind stress, rainfall and relative density) with observed sea ... -
Macrobenthic communities of the coastal waters of Dabhol, west coast of India
(NISCAIR, CSIR, 2002)Macrobenthic community of a shallow subtidal (5-20 m) muddy deposit off Dabhol was investigated. Sediment comprised mainly of silt and clay with less of sand. Dominance of clayey-silt fraction reflects on active flocculation ... -
Breeding biology of shrimp Parapenaeopsis stylifera (Milne Edwards) (Crustacea: Decapoda) along the Neendakara zone, SW coast of India
(NISCAIR, CSIR, 2002)Investigations on gonado-somatic index, stages of maturity and fecundity of Parapenaeopsis stylifera were carried out from the Neendakara zone, Kerala coast, India for a period of one year. Females with mature ovaries ... -
A study on the seasonal dynamics of Beypore estuary, Kerala coast
(NISCAIR, CSIR, 2002)Mixing characteristics of the Beypore estuary were determined up to 15 km upstream of Chaliyar river. The study area was divided into four sections (5km interval) with two transverse stations on either side of each section. ... -
Thraustochytrid protists degrade hydrocarbons
(NISCAIR, CSIR, 2001)Although thraustochytrid protists are known to be of widespread occurrence in the sea, their hydrocarbon-degrading abilities have never been investigated. We isolated thraustochytrids from coastal waters and sediments of ... -
Littoral transport studies along west coast of India - A reivew
(NISCAIR, CSIR, 2001)This article presents an overview of investigations that were carried out to determine the dynamics of littoral transport along the west coast of India, during last three decades. Sedimentological methods, wave refraction ... -
Marine macroalgal diversity along the Maharashtra coast: Past and present status
(NISCAIR, CSIR, 2001)A comparative study on distribution and abundance of marine macroalgae was carried out at six sites along the Maharashtra coast, India with the available data from 1935 onwards. The analyses and interpretation of this data ... -
Surface wave statistics and spectra for Valiathura coastlines, SW coast of India
(NISCAIR, CSIR, 2001)A series of 12 monthly graphical three-dimensional plots were produced for Valiathura, SW coast of India, taking significant wave height, zero up-crossing period and direction as the three axes. Joint distributions of ... -
Petrographical indicators of petrogenesis: Examples from Central Indian Ocean Basin basalts
(NISCAIR, CSIR, 2001)Petrographical features of the Central Indian Basin (CIOB) basalts were studied to understand their genetic significance. The fresh basaltic pillows show three textural zones from the top glassy (zone A) through the ... -
Isolation of 2-deoxyecdysterone, a novel oxytocic agent, from a marine Zoanthus sp.
(Indian Institute of Science, 2001)The insect-moulting hormone 2-deoxyecdysterone (2-deoxy-20-hydroxyecdysone 1) has been isolated for the first time and in relatively high yield (0.016%) from a marine Zoanthus sp. The compound exhibited promising oxytocic ...