Browsing Scholarly literature by Author "Naik, B.G."
Now showing items 1-14 of 14
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Calamenenes - aromatic bicyclic sesquiterpenes - from the Indian gorgonian Subergorgia reticulata (Ellis and Solander, 1786)
LimnaMol, V.P.; Raveendran, T.V.; Naik, B.G.; Kunnath, R.J.; Parameswaran, P.S. (Taylor & Francis, 2011)Three aromatic sesquiterpene derivatives, (+)-(7R, 10S)-2-methoxy calamenene (1), (+)-(7R, 10S)-2,5-dimethoxy calamenene (2) and (+)-(7R, 10S)-2-methoxy-5-acetoxy calamenene (3) were isolated from the methanol extract of ... -
Can hydrocarbons in coastal sediments be related to terrestrial flux? A case study of Godavari river discharge (Bay of Bengal)
Rayaprolu, K.; GopalaKrishna, V.V.J.; Naik, B.G.; Mahalakshmi, G.; Rengarajan, R.; Mazumdar, A.; Sarma, N.S. (Current Science Association, 2015)A sediment core aged ~250 years and deposition rate of ~2.4 mm yr<sup>-1</sup> raised from the coastal region receiving inputs from the Godavari river was examined for n-alkanes The carbon preference index (CPI) of shortchain ... -
Characteristics, seasonal distribution and surface degradation features of microplastic pellets along the Goa coast, India
Veerasingam, S.; Saha, M.; Suneel, V.; Vethamony, P.; Rodrigues, A.C.; Bhattacharyya, S.; Naik, B.G. (Elsevier, 2016)Microplastic pellets (MPPs) are ubiquitous contaminants, recognised as a serious threat to the biota in coastal, estuarine and marine environment. The distribution, abundance, weathering and chemical characteristics of ... -
Chemotaxonomic study of the demosponge Cinachyrella cavernosa (Lamarck)
Wahidullah, S.; Naik, B.G.; Al-Fadhli, A.A. (Elsevier, 2015)Sterols as acetates and phthalate esters were identified by GC–MS in demosponge Cinachyrella cavernosa. The sponge contained mainly C27, C28 and C29 Δ5 conventional sterols and minor amounts of C27 and C28 Δ0 analogues. ... -
Evaluation of significant sources influencing the variation of water quality of Kandla creek, Gulf of Katchchh, using PCA
Dalal, S.G.; Shirodkar, P.V.; Jagtap, T.G.; Naik, B.G.; Rao, G.S. (Springer, 2010)To evaluate the significant sources contributing to water quality parameters, we used principal component analysis (PCA) for the interpretation of a large complex data matrix obtained from the Kandla creek environmental ... -
Gas hydrate destabilization and methane release events in the Krishna-Godavari Basin, Bay of Bengal
Joshi, R.K.; Mazumdar, A.; Peketi, A.; Ramamurty, P.B.; Naik, B.G.; Kocherla, M.; Carvalho, M.A.; Mahalakshmi, P.; Dewangan, P.; Ramana, M.V. (Elsevier, 2014)Methane release events have been linked to global warming, alteration of the carbon cycle and influence on biota. However, unequivocal evidence of paleomethane release events are limited. We report several negative carbon ... -
Glacial-interglacial contrasts revealed by n-alkanes in sediments of the Equatorial Indian Ocean during the last 300,000 years
Sarma, N.S.; Kiran, R.; Krishna, V.V.J.G.; Krishna, M.S.; Reddy, M.R.; Pasha, S.G.; Mazumdar, A.; Naik, B.G.; Yadava, M.G. (Elsevier, 2017)A sediment core aged up to 300 kyr from the Equatorial Indian Ocean (EIO) was examined for its inorganic and organic geochemistry, the objective being to identify coherent markers of glacial-interglacial changes and ... -
Identification of sources of tar balls deposited along the Goa coast, India, using fingerprinting techniques
Suneel, V.; Vethamony, P.; Zakaria, M.P.; Naik, B.G.; Prasad, K.V. (Elsevier, 2013)Deposition of tar balls along the coast of Goa, India is a common phenomenon during the southwest monsoon. Representative tar ball samples collected from various beaches of Goa and one Bombay High (BH) crude oil sample ... -
Identifying the source of tar balls deposited along the beaches of Goa in 2013 and comparing with historical data collected along the west coast of India
Suneel, V.; Vethamony, P.; Naik, B.G.; Krishna, M.S.; Jadhav, L. (Elsevier, 2015)Deposition of oil residues, also known as tar balls, is a seasonal phenomenon, and it occurs only in the southwest monsoon season along the west coast of India. This has become a serious environmental issue, as Goa is a ... -
Phytochemical studies on marine green algae Boodlea composite of Ukha, west coast of India
Praveen, P.J.; Singh, K.S.; Naik, B.G.; Parameswaran, P.S. (Indian Chemical Society, 2017)Phytochemical investigation of marine green algae Boodlea compositae collected from the Ukha, west coast of India led to the isolation and identification of 22 constituents: -sitosterol, loliolide and 132 -hydroxy-(132 ... -
Polycyclic aromatic hydrocarbons (PAHs) and n-Alkanes in beaked sea snake Enhydrina schistose (Daudin, 1803) from the Mandovi Estuary, Goa
Mote, S.; RanjeetKumar; Naik, B.G.; Ingole, B.S. (Springer, 2015)An ecotoxicological study were conducted to evaluate the concentrations of PAHs and n-alkanes, in gut, liver and kidney tissues of two individuals of Enhydrina schistose (Daudin, 1803), using gas chromatography/mass ... -
Salinity stratification controlled productivity variation over 300 ky in the Bay of Bengal
DaSilva, R.; Mazumdar, A.; Mapder, T.; Peketi, A.; Joshi, R.K.; Shaji, A.; Mahalakshmi, P.; Sawant, B.; Naik, B.G.; Carvalho, M.A.; Molletti, S.K. (Nature Publishing Group, 2017)The unique hydrographic setting of the Bay of Bengal (BoB) makes it an ideal tropical marine system to study the influence of regional and global forcings on productivity and [CO2aq] through the late quaternary. Enormous ... -
Source investigation of the tar balls deposited along the Gujarat coast, India, using chemical fingerprinting and transport modeling techniques
Suneel, V.; Vethamony, P.; Naik, B.G.; VinodKumar, K.; Sreenu, L.; Samiksha, S.V.; Tai,Y.; Sudheesh, K. (American Chemical Society, 2014)Deposition of tar balls (TBs) along the south Gujarat coast, situated on the west coast of India (WCI), commonly occurs during the southwest monsoon season. Several offshore oil fields off the Mumbai-Gujarat coast, and ... -
Tar ball pollution: Research effort and management strategy
Suneel, V.; Naik, B.G.; Vethamony, P. (Indian Coast Guard, 2017)