DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 7371-7390 of 9513
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Cluster Analysis and Ecology of Living Benthonic Foraminiferids from Inner Shelf off Ratnagiri, West Coast, India
(Geological Society of India, 1981)Q-mode cluster analysis explains the spatial distribution data of living benthonic foraminiferids from the inner shelf off Ratnagiri. Two main biotopes and two sub-biotopes are revognised within the study area; biotope A, ... -
Authigenic Gypsum in a Deep Sea Core from Southeastern Arabian Sea
(Geological Society of India, 1980)Authigenic gypsum has been encountered in a deep sea core RC9-157 from the southeastern Arabian Sea at a depth of 4111 m which is a zone of lysocline. The formation of gypsum in the deep sea region is attributed to the ... -
Gypsum crystals in the inner shelf sediments off Maharashtra, India
(Geological Society of India, 1979)Gypsum crystals have been found in the inner shelf silty clay/clayey silt off the Maharashtra Coast between Vengurla and Bombay. Generally these occur as euhedral single or twinned crystals of selenite. Very often shells ... -
Holocene limestones of part of the western continental shelf of India
(Geological Society of India, 1979)Dredging on the western continental shelf of India has shown that the most common rock types outcropping on the irregular topography of the outer shelf (70-90 m) are algal limestones and shelly limestones containing ... -
A checklist of benthic foraminiferids from the inner shelf of Dabhol-Vengurla region, Arabian Sea
(Geological Society of India, 1979)Sixty-four benthonic foraminiferids are reported from Dabhol-Vengurla innershore neritic environment and they are listed in the order of their relative abundance. Small microenvironments or milieus created by the dominance ... -
Sediments of the western continental shelf of India - Environmental significance
(Geological Society of India, 1979)The degree of fragmentation and colour of the skeletal fragments, colouration in benthic foraminifers have been studied in surficial sediment samples collected from forty stations from the continental shelf region between ... -
Occurrence of rhyolytic tuffs at deep sea drilling project site 219 on the Laccadive Ridge
(Geological Society of India, 1976)A study of thin sections from the lower and middle parts of Unit 5 (Paleocene) from Site 219 shows that these largely consist of acidic or rhyolitic tuffs. The overlying limestones in Unit 5 (Paleocene) and Unit 4 (Lower ... -
Distribution of iron, manganese, cobalt and nickel in sediment cores of the northeastern Arabian Sea
(Geological Society of India, 1976)A study of the distribution of iron, manganese, cobalt and nickel in sediment cores from the shelf, slope and basin regions of Bombay-Kathiawar coast of India shows that cobalt and nickel are derived from the overlying sea ... -
Holocene planktonic foraminifera from the shelf sediments off Kerala Coast
(Geological Society of India, 1972)Twenty-two planktonic foraminifers were identified from a few samples collected aboard INS KISTNA at 9~'N and 76~'E, at 89 metres depth from the bottom sediment-water interface. A few of the more characteristic features ... -
Observations on marine macrophytes of the republic of Seychelles
(Walter de Gruyter, Berlin, 1989)The distribution of macrophytes was studies from the major islands (Mahe, Praslin and La Digue) of the Seychelles Archipelago. The macrophytes were represented by 72 species of seaweeds, 8 species of mangroves and 6 species ... -
Changes in the marine green alga @iChaetomorpha media@@ on infection by a fungal pathogen
(Walter de Gruyter, Berlin, 1988)Biochemical changes in the green filamentous alga @iChaetomorpha media@@ Kutzing infected with a holocarpic endobiotic fungus@@ Pontisma lagenidioides@@ Petersen were studied. Healthy plants of @iC. media@@ were inoculated ... -
Oxytocic principle of Red alga Amphiroa fragilissima
(Walter de Gruyter, Berlin, 1987)The crude aqueous methanolic extract of the marine red alga @iAmphiroa fragilissima@@ has been reported as exhibiting oxytocic and spasmogenic activity at a dose of 50 ~kg/ml. The activity is located in the water soluble ... -
Occurrence of the Tharaustochytrid, @iCorallochytrium limacisporum@@ gen. et. sp. nov. in the coral reef lagoons of the Lakshadweep Islands in Arabian Sea
(Walter de Gruyter, Berlin, 1987)A new thraustochytrid protist, @iCorallochytrium limacisporum@@ gen. et sp. nov. is described from the waters of the coral reef lagoons of Agatti, Kavaratti and Bingaram belonging to the Lakshadweep group of islands in the ... -
Fungal parasites of the marine green algae, Cladophora and Rhizoclonium
(Walter de Gruyter, Berlin, 1986)Diseases caused by three fungal parasites in the green algal genus @iCladophora@@ from the beaches of Goa and Lakshadweep islands in Arabian sea in India are described. These are caused by @iSirolpidium bryopsidis, Olpidium ... -
Chemical Constituents of the Red Alga Acanthophora Spicifera
(Walter de Gruyter, Berlin, 1986)Analysis of the petroleum-wither and chloroform extracts of the marine red alga @iAcanthophora spicifera@@ led to the isolation of a sterol, cholesterol, fatty acids, stearic, palmitic, behenic (C@d22@@) and arachidic acids ... -
Bromine content in some seaweeds of Goa (Central West Coast of India)
(Walter de Gruyter, Berlin, 1979)Nineteen species of seaweeds from the coast of Goa were examined for their bromine content following the spectrophotometric method involving ashing with Na@d2@@CO@d3@@, oxidation of bromide to bromine with chloramine-T and ... -
Metal concentration in some seaweeds of Goa (India)
(Walter de Gruyter, Berlin, 1978)Seventeen species of marine algae collected from five localities of Goa, were analysed for Co, Cu, Fe, Mn, Ni, Pb and Zn, using atomic absorption spectrophotometer. All the seven metals showed considerable variations in ... -
Preliminary studies on prawn, Penaeus merguiensis, for selection of broodstock in genetic improvement programs
(Elsevier, 1986)Studies conducted on prawn, @iPenaeus merguiensis@@ (de Man, 1888), from Goa and Devgarh (Maharashtra) waters showed higher average values of tail weight and other morphometric characters in Devgarh. The coefficient of ... -
Formulation of cheaper artificial feeds for shrimp culture: preliminary biochemical, physical and biological evaluation
(Elsevier, 1979)A compound shrimp diet was prepared making use of the locally available natural food stuffs, slaughter house products and factory by-products. The ingredients, viz: beef liver (discarded for human use on veterinary grounds), ... -
Growth of the green mussel, Perna viridis L., in a sea water circulating system
(Elsevier, 1984)Growth of the green mussel, P. viridis L., was studied in a sea water circulating system for 12 months. The maximum growth rate was recorded during March - May, coinciding with the maximum abundance of phytoplankton. The ...

