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Zaman, Sufia
- Mangrove Health Card:Approach and Interpretation
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Authors
Affiliations
1 Dept. of Oceanography, Techno India University, Salt Lake, Kolkata-700091, IN
2 Dept. of Biological and Agricultural Engineering, University Putra, Selangor, MY
3 Dept. of Oceanography, Techno India University, Salt Lake, Kolkata-700091, MY
1 Dept. of Oceanography, Techno India University, Salt Lake, Kolkata-700091, IN
2 Dept. of Biological and Agricultural Engineering, University Putra, Selangor, MY
3 Dept. of Oceanography, Techno India University, Salt Lake, Kolkata-700091, MY
Source
Journal of Environment and Sociobiology, Vol 12, No Sp Iss (2015), Pagination: 32-33Abstract
Evaluation of ecosystem services of mangroves and their economic evaluation are yet unrevealed, although several literatures are available on the use of mangroves as nursery and breeding ground of fishes, sources of timber, honey, wax, firewood etc. Considering the importance of mangroves as primary service providers to coastal populations and island dwellers, it is extremely important to assess the condition of mangrove forest and relate the same with the anthropogenic and natural threats existing in and around the habitats. Relative abundance and Shannon-Weiner species diversity index of true mangrove species can be used as indicators of mangrove health. The present paper is an approach to evaluate the health of mangrove floral species considering 10 sampling stations in Indian Sundarbans during 2014. The mangrove patches in the selected stations were categorized into a 4-point scale depending on the values of Shannon-Weiner species diversity index. The health of the mangrove forest as per our constructed 4-point scale was found to be regulated primarily by anthropogenic factors, although in station like Sagar South, the natural erosion may be the key player in determining the mangrove floral diversity.
- Water Hyacinth:A Unique Agent of Bioremediation
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Authors
Affiliations
1 Dept. of Oceanography, Techno India University, Salt Lake, Kolkata 700 091, IN
2 Dept. of Biotechnology, Techno India University, Salt Lake, Kolkata 700 091, IN
1 Dept. of Oceanography, Techno India University, Salt Lake, Kolkata 700 091, IN
2 Dept. of Biotechnology, Techno India University, Salt Lake, Kolkata 700 091, IN
Source
Journal of Environment and Sociobiology, Vol 12, No Sp Iss (2015), Pagination: 37-37Abstract
Water hyacinth (Eichhornia crassipes) is profoundly found in the water bodies of tropical countries. It is a menace as it chokes the water body, drainage system and kills the fishes because of oxygen depletion. The adverse impact of water hyacinth has been stated in several literatures. Apart from destroying the aesthetic value of the aquatic ecosystem, water hyacinth cluster serves as the breeding ground of several disease causing insects and pests. The species is also invasive in nature and out-compete all other aquatic species growing in its vicinity and thus decreases the biodiversity of the aquatic ecosystem. Considering this disadvantage spectrum of water hyacinth, the present research programme is a turning force to rotate the significance of water hyacinth from its disadvantage to an advantageous sector. It can be used as an agent of bioremediation because of its potential to absorb heavy metals in its body tissue. The present programme is an attempt to monitor Zn, Cu and Pb in the body tissues of water hyacinth collected from East Kolkata Wetland during November, 2014. The analysis was carried out through Atomic Absorption Spectrophotometer (AAS) after acid digestion. The order of metal accumulation is Zn > Cu > Pb.- Abiotic Indicators of Climate Change in Indian Sundarbans
Abstract Views :183 |
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Authors
Affiliations
1 Department of Marine Science, Univerisity of Calcutta, 35 B. C. Road, Kolkata 700 019, West Bengal, IN
1 Department of Marine Science, Univerisity of Calcutta, 35 B. C. Road, Kolkata 700 019, West Bengal, IN
Source
Indian Science Cruiser, Vol 23, No 2 (2009), Pagination: 54-57Abstract
Coastal zones are particularly vulnerable to climate variability and change. Key concerns include sea level rise, land loss, changes in maritime storms and flooding, responses to sea level rise and implications for water resources. The IPCC estimates that the global average sea level will rise between 0.6 and 2 feet (18 to 59 cm) in the next century. India has been identified as one amongst 27 countries, which are most vulnerable to the impacts of global warming - induced sea level rise. Any global warming-induced climatic change such as increase in sea surface temperature, change in frequency, intensity or tracks of cyclones, sea level rise may aggravate the potential risks to coastal zones and estuarine systems of the Indian sub-continent. The adverse impact of climate change on estuarine system stems from the fact that global warming may cause changes in the salinity level of the coastal and estuarine waters, the amount of , oxygen in the water, pollution level and turbidity levels due to increased frequency of erosion caused by amplified tidal amplitude.
On this background, an investigation was undertaken in the aquatic system of mangrove dominated Indian Sundarbans considering surface water temperature, salinity and dissolved oxygen as indicators. Possible adverse impacts on the human society due to such change have also been highlighted.
- APPLICATIONS OF MARINE MICROBES FOR HUMAN WELFARE
Abstract Views :136 |
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Authors
Affiliations
1 Department of Marine Science, University of Calcutta, 35, B. C. Road, Kolkata-19, IN
1 Department of Marine Science, University of Calcutta, 35, B. C. Road, Kolkata-19, IN
Source
Indian Science Cruiser, Vol 21, No 5 (2007), Pagination: 39-43Abstract
The present paper discusses the distribution of marine microbes in the estu aries, continental shelves and the deep sea. These habitats (except the deep sea environment) are congenial for the growth and survival of marine mi crobes due to high nutrient, photon energy and optimum salinity. The appli cation of marine microbes in the production of antibiotics, anti-tumour com pounds and enzyme and also in the sphere of bioremediation has opened a new avenue for the benefit of mankind.- Study on Floral Carbon Storage Potential In the Megacity of Kolkata: A Roadmap Towards Net-Zero Carbon Emission
Abstract Views :147 |
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Authors
Sana Ahmed
1,
Subrata Trivedi
2,
Nabonita Pal
1,
Prosenjit Pramanick
1,
Sufia Zaman
1,
Abhijit Mitra
3
Affiliations
1 Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India., IN
2 School of Health and Applied Sciences, Apex Professional University, NH-52, Pasighat Smart City, PIN-791102, Arunachal Pradesh, India., IN
3 Department of Marine Science, University of Calcutta, 35 B.C. Road, Kolkata-700019, India., IN
1 Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India., IN
2 School of Health and Applied Sciences, Apex Professional University, NH-52, Pasighat Smart City, PIN-791102, Arunachal Pradesh, India., IN
3 Department of Marine Science, University of Calcutta, 35 B.C. Road, Kolkata-700019, India., IN
Source
Journal of Environment and Sociobiology, Vol 19, No 2 (2022), Pagination: 113-123Abstract
The present study was carried out during February, 2022 to assess the role played by the major urban floral species in lowering the level of near-surface atmospheric carbon dioxide at five selected sampling stations in the megacity of Kolkata. Seventeen dominant tree species common in the five sampling sites were surveyed, out of which the highest and the lowest mean value of Above Ground Stem Biomass (AGSB) was exhibited by Eucalyptus globus and Alstonia scholaris respectively. The mean Above Ground Stem Carbon (AGSC) also exhibited similar trend with highest value of 2641.03 tha -1 by Eucalyptus globusand lowest value of 53.95 tha -1 by Alstonia scholaris. The soil pH at the sampling sites ranged between 4.9 to 6.2 and the Soil Organic Carbon (SOC) ranged from 0.52 to 1.29%. The near-surface atmospheric CO2 level showed the highest value of 418 ppm (at Moulali) and the lowest value of 403 ppm (at Park Circus). The study highlights the potential of urban trees to store carbon in the form of biomass. This can be an effective roadmap to underscore the rising trend of carbon dioxide in the near-surface atmosphere of the city.Keywords
Atmospheric CO2, Urban Floral Species, Tree Biomass, Stored Carbon.References
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