Browsing by Author "Udayakrishnan, P.B."
Now showing items 1-14 of 14
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Assessment of heavy metals in the sediments of anthropogenically disturbed patalganga estuary, india
Thorat, B.R.; Udayakrishnan, P.B.; Gaud, A.; Ram, A. (EM International, Pune, 2020)The present study aims to evaluate the effect of industrialization on the heavy metal accumulation in sediments of the Patalganga Estuary. The contamination level of the Patalganga estuary is evaluated based on the enrichment ... -
Distribution and sources of fatty acids in surface sediments of mangrove ecosystems in the Northern Kerala Coast, India
Resmi, P.; Gireeshkumar, T.R.; RatheeshKumar, C.S.; Udayakrishnan, P.B.; Chandramohanakumar, N. (Taylor & Francis, 2023)Fatty acids and bulk geochemical proxies were employed to understand the sources and transformation of sedimentary organic matter from surface sediments of major five mangrove systems in the northern Kerala coast. Texture, ... -
Dynamics of trace metals in sediments of a seasonally hypoxic coastal zone in the southeastern Arabian Sea
Dayana, M.; Gireeshkumar, T.R.; Shameem, K.; Furtado, C.M.; Arya, K.S.; Udayakrishnan, P.B.; Balachandran, K.K. (Elsevier, 2022)This study examined the effect of water column hypoxia on the distribution and geochemical fractionation of trace metals in the seasonally hypoxic coastal environment in the southeastern Arabian Sea.Water and surface ... -
Effects of sedimentary heavy metals on meiobenthic community in tropical estuaries along eastern Arabian Sea
Rao, M.N.; Gaikwad, Santosh; Ram, A.; Pradhan, U.K.; Sautya, S.; Kumbhar, L.; Udayakrishnan, P.B.; Siddaiha, V. (Springer, 2023)The central west coast of India comprises the 720 km long coastline of Maharashtra state and houses widespread industrial zones along the eastern Arabian Sea. Sediments from seven industrial-dominated estuaries along the ... -
Environmental status of some beaches in Daman and South Gujarat, India
Lonkar, S.; Pradhan, U.K.; Ram, A.; Udayakrishnan, P.B.; Fulke, A.B.; Gaud, A.; Kumbhar, L. (NIScPR-CSIR, India, 2022)Beaches are the prime choice of amusement, hence determining its quality is significant to public health.The existing status of water and sediment quality of four beaches along the northwest coast of India is evaluated at ... -
Geochemical speciation of iron under nearshore hypoxia: A case study of Alappuzha mud banks, southwest coast of India
Mathew, D.; Gireeshkumar, T.R.; Udayakrishnan, P.B.; Shameem, K.; Nayana, P.M.; Deepulal, P.M.; Sarath, R.; Nair, M.; Jaleel, A.K.U.; Balachandran, K.K. (Elsevier, 2022)Studies on the speciation of iron (Fe) and its regulatory roles in the biogeochemical cycling of other elements in the sediments of the Arabian Sea are limited. Changes in the reactivity and crystallinity of geochemical ... -
Geochemistry of metals in grain size fractionated sediments from estuarine and coastal regions along Mumbai: A baseline information
Lonkar, S.; Pradhan, U.K.; Ram, A.; Udayakrishnan, P.B.; Sahu, B. (CSIR-NISCPR, New Delhi, 2023)Differential metal accumulation in fractionated sediments within highly urbanized land-sea ecosystems is significant, often due to an imbalance between sluggish hydrodynamics and over dumping of contaminants. Here, an ... -
Influence of hypoxia on phosphorus cycling in Alappuzha mud banks, southwest coast of India
Mathew, D.; Gireeshkumar, T.R.; Balachandran, K.K.; Udayakrishnan, P.B.; Shameem, K.; Deepulal, P.M.; Nair, M.; Madhu, N.V.; Muraleedharan, K.R. (2020)The southwest coast of India is known to experience two concurrent processes during the southwest monsoon, namely coastal upwelling and mud banks at selected stretches such as that off Alappuzha. The mud bank sediments ... -
Input-export fluxes of heavy metals in the Cochin estuary, southwest coast of India
Lallu, K.R.; Sebin, J.; Muraleedharan, K.R.; Gireeshkumar, T.R.; Udayakrishnan, P.B.; Dayana, M.; Sachin, M.; Revichandran, C.; Nair, M.; Parameswaran, P.S.; Balachandran, K.K. (Springer, 2023)Cochin estuary (CE) is one of the largest tropical estuaries along the southwest coast of India, sustaining rich bio-resources.Several studies enlighten the environmental changes in the CE caused by anthropogenic activities.In ... -
Inter-annual variations in the hydrochemistry of Alappuzha mud banks, southwest coast of India
Dayana, M.; Gireeshkumar, T.R.; Udayakrishnan, P.B.; Muraleedharan, K.R.; Madhu, N.V.; Nair, M.; Revichandran, C.; Balachandran, K.K. (Elsevier, 2019)The changes in the hydro-chemical properties of a near shore waters of Alappuzha, southwest coast of India, where the mud banks and coastal upwelling are co-existent, are presented based on two time-series measurements ... -
Magnetic tracing of sediment dynamics of mudbanks off southwest coast of India
Badesab, F.K.; Gaikwad, V.; Gireeshkumar, T.R.; Naikgaonkar, O.; Deenadayalan, K.; Samiksha, S.V.; DineshKumar, P.K.; Loveson, V.J.; Iyer, S.D.; Khan, A.; Udayakrishnan, P.B.; Sardar, A.A. (Springer Berlin Heidelberg, 2018)In this study, we utilized environmental magnetic in combination with sedimentological and hydrodynamic data to investigate the formative processes of mudbanks along southwest coast of India. We document the linkages between ... -
Montmorillonite and phosphorus enrichment in sediments as the causative factor for mud bank formation along the southwest coast of India
Gireeshkumar, T.R.; Mathew, D.; Udayakrishnan, P.B.; Shameem, K.; Fathin, K.P.F.; Furtado, C.M.; Deepulal, P.M.; Nair, M.; Balachandran, K.K. (Elsevier B.V., 2020)Mud banks of Kerala (southwest coast of India) are renowned for immense fish harvesting during the southwest monsoon season. Although inclement weather and turbulent waves during monsoon prevent vessels sailing into the ... -
Multivariate assessment of outflow water quality in highly urbanized creek system: Implication of natural and anthropogenic processes
Pradhan, U.K.; Ram, A.; Sahu, Balaram; Udayakrishnan, P.B.; Lonkar, S.; Kumbhar, L. (Springer, 2021)Nutrient source and transport study in tropical creeks adjacent to megacities are sparse on a regional and global scale. High-frequency chemical data collected during 2017-2018 in the Thane creek system, the largest ... -
Triterpenoids and fatty alcohols as indicators of mangrove derived organic matter in Northern Kerala Coast, India
Resmi, P.; Gireeshkumar, T.R.; RatheeshKumar, C.S.; Udayakrishnan, P.B.; Chandramohanakumar, N.; Joseph, M.M. (Taylor & Francis, 2022)Triterpenoids and fatty alcohols were identified from the sediments of five mangrove ecosystems (Kunjimangalam, Pazhayangadi, Pappinissery, Thalassery, and Kadalundi) in the northern Kerala coast, India, to illustrate the ...