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Phytoplankton response to the contrasting physical regimes in the eastern Arabian Sea during north east monsoon

Chndrasekhararao, A.V.; Kurian, S.; Vidya, P.J.; Gauns, M.; Shenoy, D.M.; Mulla, A.; Naik, H.; Reddy, T.V.; Naqvi, S.W.A. (Elsevier, 2018)

Phytoplankton abundance and composition in two contrasting physical regimes - convective mixing in the northeastern Arabian Sea (NEAS) and Arabian Sea mini warm pool (ASMWP) in the southeastern Arabian Sea (SEAS) - were ...

Nitrogen and carbon cycling over the western continental shelf of India during seasonal anoxia: A stable isotope approach

Bardhan, P.; Naqvi, S.W.A. (Elsevier B.V., 2020)

The western continental shelf of India (eastern Arabian Sea) houses the world�s largest seasonally-occurring coastal low-oxygen zone. The natural abundance of nitrogen and oxygen isotopes in dissolved nitrate were measured ...

Discriminating the biophysical impacts of coastal upwelling and mud banks along the southwest coast of India

Karnan, C.; Jyothibabu, R.; Arunpandi, N.; Jagadeesan, L.; Muraleedharan, K.R.; Pratihary, A.K.; Balachandran, K.K.; Naqvi, S.W.A. (Elsevier, 2017)

Coastal upwelling and mud banks are two oceanographic processes concurrently operating along certain stretches of the southwest (Kerala) coast of India during the Southwest Monsoon period (June-September), facilitating ...

Iron organic speciation during the LOHAFEX experiment: Iron ligands release under biomass control by copepod grazing

Laglera, L.M.; Tovar-Sanchez, A.; Sukekava, C.F.; Naik, H.; Naqvi, S.W.A.; Wolf-Gladrow, D.A. (Elsevier B.V., 2020)

The LOHAFEX iron fertilization experiment consisted in the fertilization of the closed core of a cyclonic eddy located south of the Antarctic Polar Front in the Atlantic sector of the Southern Ocean. This eddy was characterized ...

Biogeochemistry of methane in a tropical monsoonal estuarine system along the west coast of India

Araujo, J.; Naqvi, S.W.A.; Naik, H.; Naik, R. (Elsevier, 2018)

Estuaries are known to be important sources of methane (CH4) to the atmosphere. However, a lack of adequate field studies in understanding the sources/sinks of CH4 in estuaries hampers the global atmospheric budgeting. ...

Environmental association of heterotrophic micro-eukaryotes in the varying biogeochemical regimes of the Arabian Sea, resolved via high-throughput sequencing

Das, P.B.; Gauns, M.; Stock, A.; Naqvi, S.W.A. (Springer, 2021)

The diverse physicochemical conditions prevailing in the Arabian Sea are expected to result in marked spatial variations in heterotrophic flagellate (HF) and ciliate communities. Here, we report the environmental association ...

Geochemistry of sediments in contact with oxygen minimum zone of the eastern Arabian Sea: Proxy for palaeo-studies

Kessarkar, P.M.; Fernandes, L.L.; Parthiban, G.; Kurian, S.; Shenoy, D.M.; Pattan, J.N.; Rao, V.P.; Naqvi, S.W.A.; Verma, Swati (Springer, 2022)

The Arabian Sea encompasses oxygen minimum zone with denitrifying conditions. For the present study, sediments were collected across three transects off Goa transect (GT), Mangalore transect (MT) and Kochi transect (KT) ...

Ecological diversity of planktonic protists in spatial regimes of the Arabian Sea revealed through next-generation sequencing

Das, P.B.; Gauns, M.; Naqvi, S.W.A. (Elsevier, 2019)

Eukaryotic microbes inhabiting diverse ecological niches are capable of mediating biogeochemical shifts. Here, we studied the distribution patterns of protistan community in oxygen-deficient sites in the Arabian Sea and ...

Massive Methane Loss During Seasonal Hypoxia/Anoxia in the Nearshore Waters of Southeastern Arabian Sea

Sudheesh, V.; Gupta, G.V.M.; Naqvi, S.W.A. (Frontiers Media S.A., 2020)

Repeat observations over the Kochi and Mangalore shelves of the southeastern Arabian Sea (SEAS) during April to December 2012 revealed substantial accumulation of methane (CH4) in the nearshore waters (48.6 � 34.4 nM) ...

Multidisciplinary Observing in the World Ocean�s Oxygen Minimum Zone Regions: From Climate to Fish - The VOICE Initiative

Garcon, V.; Karstensen, J.; Palacz, A.; Telszewski, M.; Lara, T.A.; Breitburg, D.; Chavez, F.; Coelho, P.; Cornejo-DeOttone, M.; Santos, C.; Fiedler, B.; Gallo, N.D.; Gregoire, M.; Gutierrez, D.; Hernandez-Ayon, M.; Isensee, K.; Koslow, T.; Levin, L.; Marsac, F.; Maske, H.; Mbaye, B.C.; Montes, I.; Naqvi, S.W.A.; Pearlman, J.; Pinto, E.; Pitcher, G.; Pizarro, O.; Rose, K.; Shenoy, D.M.; Van der Plas, A.; Vito, M.R.; Weng, K. (2019)

Multidisciplinary ocean observing activities provide critical ocean information to satisfy ever-changing socioeconomic needs and require coordinated implementation. The upper oxycline (transition between high and low oxygen ...