DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 8171-8190 of 9376
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Geomorphology of the Goa Coast
(Indian Academy of Sciences, Bangalore, 1982)This paper is based on the observations and interpretations of aerial photographs (1;25, 000 and 1:15, 000) of the Goa Coast. Aerial photocharacters like zonal differences, texture, shape, size, form, pattern, vegetation, ... -
Observations on marine biofouling on electroplated metallic surfaces in Goa waters
(Indian Association for Limnology and Oceanography, 1982)The panels of metallic brass electroplated with cadmium as well as nickel-chromium were kept suspended in the near-shore marine environment of Goa, India for biofouling studies. The results for the premonsoon period, which ... -
Effects of different feeding levels on moulting, growth, food conversion efficiency and biochemical composition of the prawn, metapenaeus monoceros (Fabricius)
(CSIR-NISCAIR, 1982)Growth efficiency (K sub(1) and K sub(2)) increased from 7 to 15% feeding levels, Maximum water content was recorded in starved prawns and the minimum at 20% feeding level On theoretical basis, average daily feeding level ... -
Growth and food conversion efficiency in the fish Etroplus suratensis in relation to different feeding levels
(CSIR-NISCAIR, 1982)Based on chemical composition of feed and body constituents, food utilization at maintenance and different production levels was estimated. On theoretical derivations, 175, 450 and 650 kcal/kg super(0.8)/week represented ... -
Studies on zooplankton from the Arabian sea off the south-central west coast of India
(CSIR-NISCAIR, 1982)Zooplankton biomass, composition and biochemical constituents were studied. Estimated average zooplankton biomass was 8.76 ml/100 m super(3). Of the major components constituting the zooplankton biomass, copepods formed ... -
Mercury in Thana Creek, Bombay Harbour
(Elsevier, 1981)Mercury content of the water column estimated along Thana Creek/Bombay Harbour gave a standing stock of about 77 kg in excess of the expected background. Mercury concentration in sediment from 23 locations which varied ... -
Physical characteristics of the coastal waters between Navapur and Umbharat, West coast of India. Part 1. Current pattern
(Indian Association for Limnology and Oceanography, 1982)Surface and bottom current patterns of the coastal waters between Navapur and Umbharat (Maharashtra-Gujarat Industrial Belt) are described in relation to tides and other environmental parameters. The results of the analysis ... -
Dissolved petroleum hydrocarbons along the oil tanker route in the southern Bay of Bengal
(CSIR-NISCAIR, 1982)Concentrations of dissolved petroleum hydrocarbons during 3 cruises (Nos. 51, 66 and 68) of R V Gaveshani, along the oil tanker route, in the southern Bay of Bengal at 0, 10 and 20 m were 19.95 + or - 3.38, 16.78 + or - ... -
Studies on boron along the central west coast of India
(CSIR-NISCAIR, 1982)Boron in its inorganic form in the Arabian Sea waters varies from 1.17 to 4.74 mg/kg. There is, at some stations, depthwise correlation between inorganic B and primary productivity. B/Cl varies from 0.122 to 0.238 for ... -
Oil pollution studies in northern Indian Ocean
(Himachal Times Group of Newspapers], 1982) -
Recent marine microfauna from the continental margin, west coast of India
(NISCAIR, CSIR, 1982)Recent sediments of the continental margin of west coast of India yielded @iGlobigerina hexagona@@ and @iGloboquadrina conglomerata@@ which disappeared from the Atlantic 50,000 to 1 million years ago. The bipolar species ... -
Trace Metal Levels in the Sediments of the Cochin Backwaters
(Indian Association for Limnology and Oceanography, 1982)Levels of Cu, Mn, Co, Ni and Zn at four stations in the northern arm of the Cochin backwaters, Kerala, India, which runs through an industrial belt is reported. All metals showed some degree of variation over the area ... -
Sex ratio of five Species of Pelagic Copepods from Indian Ocean
(Indian Association for Limnology and Oceanography, 1982)Sex ratio in five species from south and southeast coast of India varied remarkably. Five species were selected for the present investigation. Range in the percentage of males was from 8 to 121 in @iUndinula vulgaris@@ ... -
Tidal Mixing in Dahej Creek Waters
(Indian Association for Limnology and Oceanography, 1982)Mixing characteristics of a tidal inlet near Dahej at the mouth of Narmada River, Gujarat, India are examined in terms of tides, currents and bathymetry. The dilution potential of the Dahej Creek waters during a tidal march ... -
Light penetration in the coastal waters off Goa
(CSIR-NISCAIR, 1982)Observations of light penetration have been carried out at 6 stations along the Goa Coast, India, for different periods during 1975-76, using a submarine photometer. Seasonal and spatial variations in the values of irradiance ... -
Determination of copper in natural waters and sediments by extraction spectroscopic method
(CSIR-NISCAIR, 1982)A sensitive extraction spectrophotometric method has been developed based on the formation and extraction of Cu(II)-neocuproine-rosenbengal into chloroform. The molar extinction coefficient of the system is 55.500 and ... -
Observations on the parasites and associates of wood boring molluscs and crustaceans of the south-west coast of India
(Society of Fisheries Technologists, 1982) -
Studies on the environmental conditions of tidal ponds in the Ramanthuruth Island (Cochin)
(1982)Environmental characteristics of certain enclosures and tidal ponds in Ramanthuruth Island, Kerala, India where prawns grow in abundance were studied. Various parameters such as temperature, salinity, pH, Eh, dissolved ... -
The levels of certain heavy metals in marine organisms from Aguada Bay (Goa)
(Indian Association for Limnology and Oceanography, 1982)The levels of manganese, iron, cobalt, nickel, copper, zinc and mercury have been measured in marine organisms from Aguada Bay which is one of the major fishing zones in Goa, India. The concentration of metals varied from ...