DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 8131-8150 of 9376
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Distribution of iodate in the south western Bay of Bengal
(CSIR-NISCAIR, 1983)Low concentration of iodate at surface (Ca. 0.2 mu M) and an increase in deeper waters (Ca, 0.55 mu M) were observed in south western Bay of Bengal. A nutrient like behaviour of iodate was also found and phosphate showed ... -
Distribution and dispersal of clay minerals on the western continental shelf of India
(Elsevier, 1982)Sediment samples distributed over a distance of 1700 km from the inner continental shelf of western India were analysed for their clay-mineral content by X-ray diffraction. The clay minerals present in the sediments, in ... -
Zooplankton standing stock and diversity along an oceanic track in the western Indian Ocean
(Indian Association for Limnology and Oceanography, 1983)Zooplankton samples were collected from 13 stations situated in the oceanic realm between latitudes 8 degrees 49 minutes N and 19 degrees 48 minutes S in January-February, 1981. Standing stock varied between 1.6 and 10.4 ... -
Calcium phosphate saturation in seawater around the Andaman Island
(CSIR-NISCAIR, 1983)Ionic product (IP) of calcium phosphate is calculated at some stations around Andaman Island. The depthwise variations of the ionic product of calcium phosphate seem to follow a normal trend with maximum saturation value ... -
A preliminary investigation of fine sediment dynamics in Cumbarjua canal, Goa
(Indian Association for Limnology and Oceanography, 1983)A preliminary field investigation was carried out in a 10 km reach of Cumbarjua Canal, Goa, India, where the sediment is in the fine size range, and the flow is primarily tide-induced. Results based on observations made ... -
The Lowering of Sea Surface Temperature in the East Central Arabian Sea Associated with a Cyclone
(Indian Association for Limnology and Oceanography, 1983)An analysis of thermal Structure in the East Central Arabian Sea associated with a moderate cyclone is presented. The heat storage and the heat budget components have been computed. Under the influence of the cyclone the ... -
Geochemistry of Sediment cores of the Western Equatorial Indian Ocean
(Indian Association for Limnology and Oceanography, 1983)Geochemical investigations including partition analysis have been carried out on nine sediment cores from the western equatorial Indian Ocean. The results show that a core from the Arabian Sea exhibits a greater terrigenous ... -
Determination of acute toxicity levels of mercury to the fish Tilapia mossambica (Peters)
(Indian Academy of Sciences, Bangalore, 1983) -
Toxicity of some metals on the fish Therapon Jarbua (Forsskal, 1775)
(CSIR-NISCAIR, 1983)Hg, V and Pb were more toxic to Therapon jarbua than the other metals studied. Recorded 86 h LC sub(50) for Hg, V, Pb, As, Cu, Zn, Ni and Co was respectively at 0.06, 0.62, 1.23, 3.38, 4.5, 11.0, 19.4 and 52.5 mg.l/1. The ... -
Length-weight relation and condition factor of Penaeus indicus and Metapenaeus dobsoni in the Cochin Backwater
(Indian Association for Limnology and Oceanography, 1983)Length-weight relation and condition factor of Penaeus indicus and Metapenaeus dobsoni were estimated using samples from Cochin backwater. Statistical tests support the view that the length-weight exponent of these species ... -
Nutrients in some estuaries of Kerala
(Indian Association for Limnology and Oceanography, 1983)Some environmental parameters and nutrients like inorganic phosphate, nitrate, nitrite and ammonia from four estuaries namely Kallai, Beypore, Korapuzha and Mahe along north Kerala Coast were studied for an year (1980-81). ... -
Mercury, Cadmium and lead in different Tissues of Fishes and in Zooplankton from the Andaman Sea
(CSIR-NISCAIR, 1983)Several fishes, representing different trophic levels, and some zooplankton samples were analysed for Hg, Cd and Pb There is a wide variation in the concentrations of these elements Hg is quite low in practically all the ... -
Zooplankton of the Antarctica waters
(1983) -
Benthic studies in south Gujarat estuaries
(Indian Association for Limnology and Oceanography, 1983)Benthic biomass and faunal composition in relation to various environmental conditions of the four South Gujarat estuaries namely the Auranga, Ambika, Purna and Mindola were studied and compared. Mean population density ... -
Metal distribution in Halophila beccarii (Aschers) and sorrounding environment along the central west coast of India
(Indian Association for Limnology and Oceanography, 1983)Halophila beccarii (Aschers), the surrounding water and the sediments showed varying concentrations of Na, K, Ca, Mg, Fe, Mn, Cu, Ni, Sr and Li at different localities along central west coast of India. Iron was found to ... -
Nannoplankton from RC9-156 in the southeastern Arabian Sea
(Geological Society of India, 1983)A deep sea core RC9-156 collected in the Arabian Sea at a water depth of 4583 m was analysed for calcareous nannoplankton and dissolution studies. Twelve species of nannoplankton were identified and based on the assemblage, ...