Faculty Publications

Permanent URI for this communityhttps://idr.nitk.ac.in/handle/123456789/18736

Publications by NITK Faculty

Browse

Filters

2011 - 20123

Settings

Author: search.filters.author.Deepthi, T.

Search Results

Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    Association of chlorophyll in a multi-parametric shallow marine environment off the Karnataka-Kerala coast
    (2011) Raghavan, B.R.; Shylini, S.K.; Deepthi, T.; Kumaraswami, M.; Ashwini, S.; Chauhan, P.; Raman, M.; Venkat Reddy, D.
    Cluster analysis is a useful data analyzing method to obtain detailed information on the state of the shallow marine environment. The objective of this analysis is to appreciate the clustering patterns of the data of case II shallow marine environment of the eastern Arabian Sea. R-mode cluster analysis was resorted to appreciate the relation of the physical, chemical and biological oceanographic parameters represented as dendograms. A set of 14 parameters were retrieved from seven seasons of the coastal waters from Bekal (North Kerala) to Karwar (North Karnataka). This study exhibits diverse clustering patterns reflecting the heterogeneous behavior of the surface waters of the shallow Arabian Sea enforced by the physical, chemical and biological oceanography of the shallow marine environment. © 2011 CAFET-INNOVA technical society. All right reserved.
  • No Thumbnail Available
    Item
    Heterogeneous microbial oceanographic environments: Application of GIS technology in deciphering of microenvironment scenarios off the central west coast of India
    (2011) Raghavan, B.R.; Nayak, S.R.; Shylini, S.K.; Deepthi, T.; Sadatipour, S.M.T.; Chauhan, P.; Srinivasakumar, T.; Lotliker, A.; Venkat Reddy, D.; Kumaraswami, M.; Ashwini, S.; Nisaj, M.
    In the vast oceanic microbial environment of 2468.83km 2, GIS modeling techniques involving sixty query steps, enabled the deciphering of Microenvironments as low as 1.19km 2 to 38.6 km 2 for the summer of 2004 and in case of summer 2005 where 84 query steps were involved to decipher Microenvironments of 10.55km 2 to 25.94km 2. Thirtythree sampling stations were established between Betul to Ankola off the central west coast of India accounting for a spatial coverage of 2468.83km 2. GIS query-modeling investigation was carried out using spatial layers of depth, optical parameters (k-Irradiance attenuation Coefficient, c-Beam attenuation coefficient), sediment size parameters (Sediment Mean Size and Sediment Sorting) and Benthic Foraminifera Suborders (Rotaliina, Textulariina, Miliolina, Lagenina). Foraminifera have been used as a surrogate parameter. However, any microbial parameter could proxy for foraminifers providing for the numerical deciphering of microenvironments. This is suggestive of the assimilation of GIS technology for a better appreciation of microbial oceanography. © 2011 CAFET-INNOVA TECHNICAL SOCIETY. All rights reserved.
  • No Thumbnail Available
    Item
    Sedimentary environs of the intertidal areas of Massawa coast: Distribution patterns of ornamental Molluscs (Gastropods) Red Sea, Eritrea
    (2012) Prabhu, H.V.; Raghavan, B.R.; Deepthi, T.; Asmelash, M.; Fsehatsion, M.; Selemun, M.; Venkat Reddy, D.
    The distribution patterns of the four orders of Gastropods with respect of the three sites i.e Tiwalet area, Gurgussum I and Gurgussum II of the intertidal areas of Massawa coast, Red Sea have been investigated to appreciate the heterogeneity in the distribution patterns. This is determined by the sediment texture. The habitat of the Molluscs in relation to the substratum in the three sites off Massawa Coast show the nature of the substrate was hard as a result of deposition of the sediments in a shallow and rapidly drying environment. In this study, 30 different species of Gastropoda were identified. All of them are members of the sub class Prosobranchia, and distributed among four orders Neogastropoda, Mesogastropoda, Archaeogastropoda, and Pyramidellomorpha. Based on the statistical Analysis of Variance (ANOVA) carried at 5% level of significance, there was a considerable variation among the three sites in the distribution patterns of the four orders of gastropods. This difference is largely due to the differences in the shell shape and structure, and the sediment textural differences in the three sites. © 2012 CAFET-INNOVA TECHNICAL SOCIETY.