Indian Journal of Geo-Marine Sciences

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Published by: NISCAIR (CSIR)

Subjects: Earth Science Geo-Marine Science

This journal was started in 1972 and this multi-disciplinary journal publishes full papers and short communications in the following areas: marine biology, marine chemistry, marine geology, physical oceanography, ocean engineering, marine instrumentation, marine corrosion and material science, satellite oceanography & modeling, marine engineering, marine pollution, marine archaeology, coastal zone management.


Editor, IJGMS, National Institute of Science Communication And Information Resources, CSIR, K S Krishnan Marg, Pusa Campus, New Delhi 110 012, India Phone:25846301,03-07 (Extn-248); Fax:(91)(11) 25847062 E-mail:

ISSN No. :    0379-5136
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Occurrence of Vibrio parahaemolyticus in marine fish and shellfish
Title: Occurrence of Vibrio parahaemolyticus in marine fish and shellfish

Authors: Anjay; Das, S.C.; Kumar, A.; Kaushik, P.; Kurmi, B.

Abstract: Vibrio parahaemolyticus is a marine bacterium that causes seafood borne gastroenteritis and traveler’s diarrhea in humans, after consumption of contaminated raw or partially cooked fish or shell fish. In this study a total of 224 marine fish and shellfish samples were screened that included 34 of Bhetki (Lates calcarifer), 40 of Parse (Liza parsia), 40 of Pabda (Ompok pabda), 30 of Pomfret (Pampus chinensis), 38 of Lote fish (Harpodon nehereus) and 42 of Tiger prawn (Penaeus monodon). V. parahaemolyticus was identified by biochemical characterization and polymerase chain reaction (PCR) targeting the toxR gene. Out of 224 samples, V. parahaemolyticus could be isolated and biochemically characterized from 170 (75.9 %) samples including L. calcarifer 31 (91.2%), L. parsia 28 (70.0%), O. pabda 30 (75.0%), P. chinensis 22 (73.3%), H. nehereus 28 (73.7%) and P. monodon 31 (73.8%). All the positive isolates were further confirmed by PCR amplification of target gene, toxR.

Page(s): 887-890

Biodegradation of diesel using microbes from a clam (Meretrixmeretrix) shell
Title: Biodegradation of diesel using microbes from a clam (Meretrixmeretrix) shell

Authors: Mhatre, B A.; Kunde, R.

Abstract: Present study consists the potential ability of microorganisms present on clam (Meretrixmeretrix) shells to degrade diesel. Counts of crude oil degrading bacteria in oil polluted soil fortified with Meretrixmeretrix shells were higher than that of unfortified soil. Microorganism isolated from the Meretrixmeretrix shells was found to be Bacillus subtilis, which is seen to have potent lipase activity, thus capable of degrading diesel and releasing carbon dioxide. This study show that clam, Meretrixmeretrix shells efficiently degrade diesel and can help in bioremediation of oil polluted regions.

Page(s): 877-881

Seasonal variation and distribution of sewage pollution indicator and human pathogenic bacteria along Odisha coast
Title: Seasonal variation and distribution of sewage pollution indicator and human pathogenic bacteria along Odisha coast

Authors: Banoo, Sabnam; Kar, Rabi Narayan; Panda, Chitta Ranjan

Abstract: Present study consists the microbial and nutrient quality of water along three coasts of Odisha over a period of three years (2008-2010) on seasonal basis (pre- monsoon, summer and post-monsoon). Water samples were examined for total viable count (TVC) and pollution indicator bacteria. Physico-chemical parameters (pH, salinity, dissolved oxygen and biochemical oxygen demand) and nutrient concentration (nitrate, nitrite, ammonium, phosphate, total nitrogen and total phosphorous) were examined to assess the physical condition of water. Highest average value of bacterial population was observed during summer, which may be due to the higher concentration of nutrients and the optimum temperature for bacterial growth. Lowest was recorded during pre-monsoon (Puri and Mahanadi) and post-monsoon (Paradip) season. Significant positive correlation was observed between pollution indicator bacteria and pathogenic bacteria which imply their co-presence, and also with the nutrient concentration which suggest that elevated nutrient load favors the bacterial growth.

Page(s): 859-869

Solar variability and global climate change
Title: Solar variability and global climate change

Authors: Dubey, S.C.

Abstract: Present study consists solar influence on global climate change, including the physics of solar variability. Climate change is a long-term change in the weather patterns over periods of time that may range from decades to thousands of years. The basic components that influence the Earth’s climatic system can occur externally (from extraterrestrial systems) and internally (from ocean, atmosphere and land systems). Total solar irradiance (TSI) has been monitored continuously from space since 1977. Long-term solar irradiance variations might contribute to global warming over decades or hundreds of years. According to TSI variation trends in recent decades, the Sun has contributed a slight cooling influence but our globe is warmed up continuously. It is indication for a dangerous period and high awareness about global warming is most essential. Adverse impact of climate change and global warming in our ecosystems and challenges in near future along-with perspective role of solar influences in recent climate change have been discussed in the present study.

Page(s): 871-875

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