Browsing by Subject "zinc"
Now showing items 1-12 of 12
-
Accumulation of copper and zinc by balanus amphitrite in a tropical estuary
(Elsevier, 1988)@iBalanus amphitrite@@ (Cirripedia: Thoracica) a dominant fouling organism was analysed to assess the accumulation potentialities of copper and zinc. It was observed that it could accumulate Cu to 864.77 mu g g-1 dry wt. ... -
Concentration of metals in fishes from Thane and Bassein creeks of Bombay, India
(Council of Scientific and Industrial Research, New Delhi, 1999)Concentration of Cu, Zn, Cd, Pb and Ni in different tissues of 10 species of fishes from Thane and Bassein creeks were estimated for a period of 15 months. The trend in bioaccumulation indicated that irrespective of species ... -
Concentration of metals in shrimps and crabs from Thane-Bassein creek system, Maharashtra
(Council of Scientific and Industrial Research, New Delhi, 1999)Levels of Cu, Zn, Cd, Pb and Ni in shrimps and crabs from Thane-Bassein creek system, Maharashtra, India were evaluated for a period of one year and reported as baseline for future monitoring of this vital ecosystem. The ... -
Ferromanganese micronodules from Bengal Fan
(Museo Geologico di Bologna, 1993)The occurrence of ferromanganese micronodules, hitherto unreported from any fan-valley system of the world, has been recorded from over 0.22 million km sup(2) area located in the middle fan region of the Bay of Bengal. ... -
Ferromanganese nodules from the Central Indian Ocean Basin
(CRC Press, USA, 2000)In order to delineate a mine site for ferromanganese nodules, extensive surveys were conducted in Central Indian Ocean Basin. Mapping of the basin by multibeam swath bathymetry (Hydrosweep) has revealed many new bottom ... -
Geochemistry of deep-sea sediment cores from the Central Indian Ocean Basin
(NISCAIR, New Delhi, 1993)Four sediment cores from the Central Indian Ocean Basin (CIOB) were studied to characterise the coarse fraction (less than 63 mu), transition metal and major oxide contents. Transition metals (Mn, Cu, Ni, Zn) show enrichment ... -
Geochemistry of ferromanganese micronodules and associated Mn and trace metals diagenesis at high terrigenous depositional site of middle fan region, Bay of Bengal
(Elsevier, 2003)The influence of sedimentation on the morphology, growth and geochemistry of the micronodules, and on Mn enrichment in the sediments of the Bay of Bengal has been evaluated. Mn accumulation is 307-219 mg cm u2 kyr u-1 in ... -
Geochemistry of zinc in the sediments of the western continental shelf and slope of India
(Indian Association for Limnology and Oceanography, 1985)The bulk geochemistry of zinc in the sediments of the western continental shelf and slope of India and also the partition geochemistry of the sediments of the shelf and slope regions between Ratnagiri and Mangalore have ... -
Heavy metals in fishes from coastal waters of Cochin, southwest coast of India
(NISCAIR, CSIR, 1997)The concentration levels of copper, zinc, manganese and iron have been determined in marine fishes from Cochin area which is one of the major fishing zones along the west coast of India. The concentration of heavy metals ... -
Opportunities for offshore mineral exploration in the Indian Ocean
(International Society of Offshore and Polar Engineers, Cupertino, CA (USA), 1999)The Indian Ocean offers several opportunities for offshore mineral resources in the nearshore and coastal areas, the EEZs of different countries as well as the deep sea regions. The coastal and nearshore resources of heavy ... -
Petroleum hydrocarbons and trace metals in Visakhapatnam harbour and Kakinada Bay, east coast of India
(NISCAIR, CSIR, 1996)High concentrations of PHC were observed in the inner channels (viz. South lighter canal, Northern arm, North Western arm and Western arm) of Visakhapatnam Harbour, Andhra Pradesh, India. The estimation of trace metals ... -
Toxicity of some heavy metals to Copepods Acartia Spinicauda and Tortanus Forcipatus
(CSIR-NISCAIR, 1981)Copper was most toxic to the species tested followed by cadmium and zinc The estuarine species Acartia spinicauda was more sensitive to the toxicants that the marine species Tortanus forcipatus The 48 hr LC50 values are presented.