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    Now showing items 31-40 of 215

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    Denitrifying bacterial community composition changes associated with stages of denitrification in oxygen minimum zones 

    Jayakumar, D.A.; O'Mullan, G.D.; Naqvi, S.W.A.; Ward, B.B. (Springer, 2009)
    Denitrification in the ocean is a major sink for fixed nitrogen in the global N budget, but the process is geographically restricted to a few oceanic regions, including three oceanic oxygen minimum zones (OMZ) and hemipelagic ...
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    The Arabian Sea as a high-nutrient, low-chlorophyll region during the late southwest monsoon 

    Naqvi, S.W.A.; Moffett, J.W.; Gauns, M.; Narvekar, P.V.; Pratihary, A.K.; Naik, H.; Shenoy, D.M.; Jayakumar, D.A.; Goepfert, T.J.; Patra, P.K.; Al-Azri, A.; Ahmed, S.I. (European Geosciences Union, 2010)
    Extensive observations were made during the late southwest monsoon of 2004 over the Indian and Omani shelves, and along a transect that extended from the southern coast of Oman to the central west coast of India, tracking ...
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    Nitrogen cycling in the suboxic waters of the Arabian Sea 

    Devol, A.H.; Naqvi, S.W.A.; Codispoti, L.A. (Springer, 2006)
    Arabian Sea contains one of the world's three large oxygen deficient zones (ODZ). Within the ODZ oxygen concentration is vanishingly small between about 200 and 800 m depth and in this depth interval denitrifications is ...
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    Lime muds and their genesis off-Northwestern India during the late Quaternary 

    Rao, V.P.; AnilKumar, A.; Naqvi, S.W.A.; Chivas, A.R.; Sekar, B.; Kessarkar, P.M. (Indian Academy of Sciences, 2012)
    Two sediment types were found in five gravity cores collected from water depths between 56 m and 121 m along the northwestern continental margin of India. lime mud was abundant in the lower section while siliciclastic ...
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    Fluctuations in productivity and denitrification in the southeastern Arabian Sea during the Late Quaternary 

    Kessarkar, P.M.; Rao, V.P.; Naqvi, S.W.A.; Chivas, A.R.; Saino, T. (Current Science Association, 2010)
    Sedimentological and stable isotopic characteristics of sediments have been studied in a core from the southeastern Arabian Sea containing records of the past 70 ka. Palaeoproductivity proxies such as organic carbon (C ...
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    Marine nitrogen cycle 

    Naqvi, S.W.A. (National Council for Science and the Environment, 2006)
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    A microdiversity study of anammox bacteria reveals a novel Candidatus Scalindua phylotype in marine oxygen minimum zones 

    Woebken, D.; Lam, P.; Kuypers, M.M.M.; Naqvi, S.W.A.; Kartal, B.; Strous, M.; Jetten, M.S.M.; Fuchs, B.M.; Amann, R. (Society for Applied Microbiology, 2008)
    The anaerobic oxidation of ammonium (anammox) contributes significantly to the global loss of fixed nitrogen and is carried out by a deep branching monophyletic group of bacteria within the phylum Planctomycetes. Various ...
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    Organic carbon, and not copper, controls denitrification in oxygen minimum zones of the ocean 

    Ward, B.B.; Tuit, C.B.; Jayakumar, A.; Rich, J.J.; Moffett, J.; Naqvi, S.W.A. (Elsevier, 2008)
    Incubation experiments under trace metal clean conditions and ambient oxygen concentrations were used to investigate the response of microbial assemblages in oxygen minimum zones (OMZs) to additions of organic carbon and ...
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    Fragilariopsis sp. bloom causes yellowish-brown waters off Alappuzha, south-central Kerala coast, India, during the mud bank-upwelling phase 

    Jyothibabu, R.; Arunpandi, N.; Karnan, C.; Jagadeesan, L.; Manojkumar, T.M.; Balachandran, K.K.; Naqvi, S.W.A. (Current Science Association & Indian Academy of Sciences, 2018)
    Mud banks (Chakara) of Kerala are calm coastal waters that form in several isolated stretches along the coast usually during the southwest monsoon (SWM) period (June-September). They are characterized by the damping of ...
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    Nitrous oxide in the Arabian Sea 

    Naqvi, S.W.A.; Noronha, R.J. (Pergamon, 1991)
    Measurements of nitrous oxide (N2O) at 16 stations in the Arabian Sea reveal high degrees of surface saturation (186 plus or minus 37%) and consequently large atmospheric fluxes of N2O (4.46 plus or minus 2.60 mu mol ...
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    Naqvi, S.W.A. (215)
    Naik, H. (41)Gauns, M. (31)Kurian, S. (28)Shenoy, D.M. (27)Pratihary, A.K. (25)Narvekar, P.V. (22)Jayakumar, D.A. (21)Rao, V.P. (13)Shirodkar, G. (13)... View MoreSubjectdenitrification (24)Chemistry and Biogeochemistry (22)nitrous oxide (13)biogeochemical cycle (12)nutrients (mineral) (12)Indian Ocean (10)monsoons (10)nitrogen cycle (10)Chemistry and biogeochemistry (9)ISW, Arabian Sea (9)... View MoreDate Issued2020 - 2024 (17)2010 - 2019 (75)2000 - 2009 (61)1990 - 1999 (33)1980 - 1989 (18)1975 - 1979 (11)Has File(s)Yes (198)No (17)

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