Browsing Scholarly literature by Author "Ravindran, J."
Now showing items 1-20 of 28
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Augmented coral reef monitoring using a stationary reef monitoring system
Maurya, P.; Manikandan, B.; Raj, Ranith; Naik, Lakshadeep; Fernandes, Llewellyn; Dabholkar, N.; Prabhudesai, S.P.; Ravindran, J.; Agarwadekar, Y.; Navelkar, G.S. (Elsevier, 2023)Coral reef monitoring is a reliable tool to assess the effect of climate change as corals are sensitive to increases in water temperatures between 30 �C and 35 �C resulting in bleaching - a whitening process when the corals ... -
Bacterial bioluminescence response to long-term exposure to reverse osmosis treated effluents from dye industries
Ravindran, J.; Manikandan, B.; Shirodkar, P.V.; Francis, K.X.; ManiMurali, R.; Vethamony, P. (NRC Research Press, 2014)The bacterial bioluminescence assay is one of the novel means for toxicity detection. The bioluminescence response of 2 marine bioluminescent bacteria was tested upon their long-term exposure to 9 different reverse osmosis ... -
Bio-prospecting of coral (Porites lutea) mucus associated bacteria, Palk Bay reefs, Southeast coast of India
Ahila, N.K.; Prakash, S.; Manikandan, B.; Ravindran, J.; Prabhu, N.M.; Kannapiran, E. (Elsevier, 2017)Coral mucus is one of the key localization in the coral holobiont, as this serves as an energy rich substrate for a wide range of abundant, diverse and multifunctional microbiota. However, very little is known about the ... -
Bleaching and recovery patterns of corals in Palk Bay, India: An indication of bleaching resilient reef
Manikandan, B.; Ravindran, J.; Vidya, P.J.; ManiMurali, R. (Elsevier, 2016)Frequency and severity of coral bleaching events increased in recent years affecting the recovery and resilience of corals. In this study, influence of bleaching and recovery patterns of corals on the resilience potential ... -
Bleaching and secondary threats on the corals of Palk Bay: A survey and Proactive conservation needs
Ravindran, J.; Kannapiran, E.; Manikandan, B.; ManiMurali, R.; Joseph, A. (NISCAIR (CSIR), 2012)A survey on bleaching and the secondary threats on bleached corals in the selected sites of Palk-Bay were conducted during May and June 2010. Massive corals represented by the genera Porites, Goniopora, Favia were bleached ... -
Community structure and coral health status across the depth gradients of Grande Island, Central west coast of India
Manikandan, B.; Ravindran, J.; Mohan, H.; Periasamy, R.; ManiMurali, R.; Ingole, B.S. (Elsevier, 2016)The Grande Island, located at the central west coast of India is one of the less studied coral reef systems in India. In this study, we provide a comprehensive description of the coral community structure and health status ... -
Community structure and coral status across reef fishing intensity gradients in Palk Bay reef, southeast coast of India.
Manikandan, B.; Ravindran, J.; Shrinivaasu, S.; Marimuthu, N.; Paramasivam, K. (Springer, 2014)Coral reef fishes are exploited without the knowledge of their sustainability and their possible effect in altering the community structure of a coral reef ecosystem. Alteration of the community structure could cause a ... -
Differential response of coral communities to Caulerpa spp. bloom in the reefs of Indian Ocean
Manikandan, B.; Ravindran, J. (Springer, 2017)Coral reef ecosystems are disturbed in tandem by climatic and anthropogenic stressors. A number of factors act synergistically to reduce the live coral cover and threaten the existence of reefs. Continuous monitoring of ... -
Disease and stress-induced mortality of corals in Indian reefs and observations on bleaching of corals in the Andamans
Ravindran, J.; Raghukumar, C.; Raghukumar, S. (Current Science Association, Bangalore, India, 1999)A study was carried out in the Lakshadweep and Andaman islands and the Gulf of Kutch to assess the health of corals in Indian reefs. Disease, predation and stress were the major factors of coral mortality. Death caused by ... -
Diseases of corals with particular reference to Indian reefs
Ravindran, J.; Raghukumar, C. (India: IUCN, 2012)Diseases are one of the factors that change the structure and functioning of coral-reef communities as they cause irreversible damage to the corals Reports on coral diseases describe the etiological agents responsible for ... -
Dynamics and diversity of phosphate mineralizing bacteria in the coral reefs of Gulf of Mannar
Kannapiran, E.; Ravindran, J. (WILEY-VCH Verlag GmbH, 2012)Phosphatase Producing Bacteria (PPB) and Inorganic Phosphate Solubilizing Bacteria (IPSB) are important to reef nutrition. These microbes and phosphate concentration play a significant role in the productivity of coral ... -
Effect of concentrating and exposing the bioluminescent bacteria to the non-luminescent allo-bacterial extracellular products on their luminescence
Ravindran, J.; Priya, G.G.; Kannapiran, E. (Wiley-Blackwell, 2011)Bioluminescence is a biochemical process occurring in many organisms. Bacterial bioluminescence has been investigated extensively that lead to many applications of such knowledge. Quorum sensing in the bioluminescent ... -
Fungi and their role in corals and coral reef ecosystems
Raghukumar, C.; Ravindran, J. (Springer, 2012)Fungi in coral reefs exist as endoliths where they penetrate carbonate structures, endobionts where they are associated with living organisms such as corals, sponges and holothurians, as saprotrophs in the coral mucus, ... -
Fungi in Porites lutea: Association with healthy and diseased corals
Ravindran, J.; Raghukumar, C.; Raghukumar, S. (Inter-Research, 2001)Healthy and diseased scleractinian corals have been reported to harbour fungi. However, the species of fungi occurring in them and their prevalence in terms of biomass have not been determined and their role in coral ... -
Histological observations on the scleractinian coral Porites lutea affected by pink-line syndrome
Ravindran, J.; Raghukumar, C. (Indian Academy of Sciences, 2006)A pink-line syndrome (PLS) was reported in the reef building coral Porites lutea in Kavaratti island of the Lakshadweep archipelago. The affected corals had dead patches colonized by a cyanobacterium Phormidium valderianum ... -
Histopathological investigation of the reef coral Goniastrea sp. affected by macroalgal abrasion
Manikandan, B.; Padelkar, A.A.; Ravindran, J.; Joseph, S. (Springer, 2021)Interspecific competition between corals and macroalgae is a common phenomenon on coral reefs, and its impacts on the cellular structure of corals are not well studied. Field observations in Gulf of Mannar Marine National ... -
Pink line syndrome (PLS) in the scleractinian coral Porites lutea
Ravindran, J.; Raghukumar, C. (Springer, 2002)An unreported diseased state of Porites lutea (Milne-Edwards and Haime) on the Kavaratti reef of the Lakshadweep group of islands (11 degrees N; 71 degrees E) is described -
Pink-line syndrome, a physiological crisis in the scleractinian coral Porites lutea
Ravindran, J.; Raghukumar, C. (Springer-Verlag, 2006)Coral diseases are one of the major factors that alter coral cover and their diversity. We have earlier reported the “Pink-line syndrome” (PLS) in the scleractinian coral Porites lutea wherein a colored band appears between ... -
Preliminary observations on the coral reef communities in Angria Bank, an isolated carbonate bank in the Northern Indian Ocean
Ravindran, J.; Sawant, Pranay; Manikandan, B.; Ingole, B.S.; Dhivya, P.; Periasamy, R.; Sundaresh; Sharma, R. (Elsevier, 2023)Submerged carbonate banks are of significant geological and biological importance and relatively little is known about the biodiversity of these deeper and less accessible habitats. This study provides pilot information ... -
Repercussions of embarkation wharves in Lakshadweep Islands on coral communities and their ecology
Ravindran, J.; Manikandan, B.; Venkatesh, M.; ManiMurali, R.; Marimuthu, N.; Wafar, M.V.M. (CSIR-NISCAIR, 2014)Present study infers that the construction of embarkation wharves in four of the Lakshadweep islands (Agatti, Amini, Kavaratti and Minicoy) in the last 5 years was accompanied by a marked degradation of coral community ...