DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6791-6810 of 9513
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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 ... -
Bothid larvae (Pleuronectiformes - Pisces) of the Gulf of Thailand and South China Sea
(Indian Fisheries Association, 2001)The larvae of bothids were found to be sparsely distributed in the Gulf of Thailand and South China Sea being only 11.9% in the Naga Expedition Collections. They were confined mostly to the coastal waters and were found ... -
Macrobenthos off Mahim (Bombay), west coast of India in relation to coastal pollution and aquaculture
(Indian Fisheries Association, 1995)Deterioration of water quality clearly indicated a moderate to severe coastal pollution around Mahim whereas a relatively healthy marine environment towards offshore was noticed. Foraminiferans, polychaetes, crustaceans ... -
Oceanic ferromanganese deposits: Future resources and past-ocean recorders
(Mineralogical Society of India, 2000)Oceanic ferromanganese deposits occur mainly in two forms, as nodules and as encrustations; while the nodules form a carpet on the deep-sea abyssal plains, encrustations occur as caps on seamounts. The genesis of nodules ... -
Application of natural generalised inverse technique in reconstruction of gravity anomalies due to a fault
(Indian National Science Academy, 2003)Generalised Inverse (GI) and Singular Value Decomposition (SVD) are well known mathematical techniques exploited in many areas of applied science including the earth sciences. Simulation experiments on gravity anomaly due ... -
Organic matter distribution in the continental shelf sediments, off Kochi, west coast of India
(Indian Petroleum Publishers, 2003)Organic matter was analysed on the silt-clay fraction of forty eight sediment samples from the continental shelf off Kochi, west coast of India. It was found to be high in the recent, near shore silt-clay predominant ... -
Length weight relationship of Sufflamen fraenatus (Latreille, 1804) and Zenodon niger (Ruppell, 1835)
(Central Marine Fisheries Research Institute, India, 2005)The relationship between total length and total weight in balistids is not significantly different in males and females. The common equation for both the sexes in Sufflamen fraenatus is Log W= -9.0429+2.7296 log L or ...

