DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 7711-7730 of 9376
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Holocene marine transgression as interpreted from bathymetry and sand grain size parameters off Gopalpur
(Indian Academy of Sciences, Bangalore, 1989)Grain size statistical parameters of the surface sediment samples collected from the innershelf off Gopalpur were calculated using graphic and moment methods. Fine-grained sand present up to 15 m water depth shows symmetrical ... -
Effect of environment on pigment ratios in Dunaliella spp. from the salt pans of Gujarat
(Indian Academy of Sciences, Bangalore, 1989)The effect of varying salinity and pH of the medium on growth and pigment ratios of Dunaliella cells in culture was studied. Cell growth was found to be optimal at pH 8 and at intermediate salt concentrations of 1-2 M NaCl. ... -
Larvae of Crossorhombus valde-rostratus (Alcock) and C. azureus (Alcock) (Heterostomata: Pisces) collected during the International Indian Ocean Expedition and Naga Expedition
(Marine Biological Association of India, 1989)Larvae of Crossorhombus valde-rostratus (Alcock) and C. azureus (Alcock) containing post-flexion stages ranging in size from 6.0 mm to 12.9 mm SL and 7.5 mm to 18.8 mm SL respectively were found in the zooplankton collected ... -
Redescription of Pseudodiaptomus jonesi (Copepoda: Calanoida) with notes on its distribution
(Cambridge University Press, 1989)Pseudodiaptomus jonesi Pillai 1970 is redescribed; several previously undescribed features are included and a few errors in the original description corrected. This species is assignable to the Ramosus group and ... -
Petrochemical behaviour of an acidic-basic contact zone
(Current Science Association, 1989) -
Nature, distribution and origin of clay minerals in grain size fractions of sediments from manganese nodule field, Central Indian Ocean Basin
(CSIR-NISCAIR, 1988)DT, IR and X-ray diffraction analyses have been carried out on 3 grain size fractions (1, 1-2 and 2-4 mu m) of sediments from the Central Indian Ocean Basin. Results indicate that there are 2 smectite minerals (montmorillonite ... -
Relation between grade and abundance of manganese nodules
(Current Science Association, 1988)Data from more than 1000 locations in the Central Indian Ocean Basin (CIOB) where both bulk nodule chemistry and abundance were determined and utilized to study the relationship between grade and abundance of manganese ... -
Sulfates reducing bacteria from the mangrove swamps of Goa, Central West Coast of India
(CSIR-NISCAIR, 1988) -
Environmental controls on the distribution of organic matter in recent sediments of the western continental margin of India
(Dehra Dun: ONGC, 1987)A large number of surficial sediment samples from the western continental shelf and slope regions were analysed for the organic carbon and total nitrogen content. The organic carbon and nitrogen contents of these sediments ... -
Classification and inter-element relationships of ferromanganese nodules from the Central Indian Ocean Basin
(1987)The chemical composition of polymetallic nodule samples from 180 locations in the Central Indian Ocean Basin based on 600 chemical analyses has been investigated. These nodules contain a Mn/Fe ratio varying from 0.96 to ... -
Physical and elastic properties of marine sediments off Bombay, India
(Springer, 1986)Keeping in view the paucity of information as to the nature of the marine sediments from the continental shelf adjoining the Indian subcontinent, a number of shallow seismic surveys were carried out, nearshore and offshore ... -
Morphometric studies on a part of Central Indian Ocean
(Geological Society of India, 1989)Morphometric and slope angle studies carried out on a part of Indian Ocean Basin have shown that gentle slope angle ranges dominate, 92% of the area represented by 0-3 degrees slopes. Young's hypothesis of log-normal ... -
Morphology of an uncharted seamount from Central Indian Basin
(Elsevier, 1989)The morphology of a seamount at 12 degrees 35'S and 76 degrees 16'E is studied. This conical seamount has a maximum height of 1275 m (water depth 4135 m) and covers an area of about 189 sq km. The maximum basal extension ... -
Statistical analysis of lineaments of Goa, India
(Current Science Association, 1989)A study of the lineaments of Goa identified from aerial photographs is presented here. The shapes of histograms representing direction vs total number and direction vs total length have close similarities. The trended data ... -
Seasonal patterns of phytoplankton biomass and productivity in a tropical estuarine complex (west coast of India)
(Indian Academy of Sciences, Bangalore, 1989)Phytoplankton cell numbers and chlorophyll a determinations were made during the premonsoon, monsoon and postmonsoon periods in the Mandovi-Zuari estuarine complex (west coast of India). Primary productivity estimates ... -
Chromosomal studies in Fulvia mutica (Bivalvia: Cardiidae) from Japan
(Current Science Association, 1989) -
Distribution of deep water wave power around the Indian coast based on ship observations
(Tirunelveli: JCSONLINE, 1989)The ship reported swell data published in the Indian Daily Weather Reports for the period from 1968 to 1983 are complied for the seas around India which are divided into 10 grids each of 5 degrees latitude and 5 degrees ...