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A Study on Phytopigment Spectrum in Relation to Anthropogenic Pressure Around the Indian Mangrove Ecosystem


Affiliations
1 Department of Marine Science, University of Calcutta, 35, B. C. Road, Kolkata, India
2 Department of Theoretical Physics, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700 032, India
     

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A monthly monitoring programme conducted at two different sampling stations in and around the mangrove ecosystem of deltaic Sundarbans, India during January, 2000 to December, 2001 showed maximum phytopigment concentrations during premonsoon and minimum during monsoon seasons. Physico-chemical variables like surface water temperature, salinity, pH, dissolved oxygen, extinction coefficient and nutrients were also analysed simultaneously during the monitoring period The concentrations of chlorophyll a, b andc exhibited significant positive correlations with surface water salinity and pH, but with nutrients like nitrate, phosphate and silicate, significant negative relationships were observed in both the sampling stations. The low phytopigment concentrations at station I may be related to severe anthropogenic stress around this zone.

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  • A Study on Phytopigment Spectrum in Relation to Anthropogenic Pressure Around the Indian Mangrove Ecosystem

Abstract Views: 193  |  PDF Views: 0

Authors

Abhijit Mitra
Department of Marine Science, University of Calcutta, 35, B. C. Road, Kolkata, India
Kakoli Banerjee
Department of Marine Science, University of Calcutta, 35, B. C. Road, Kolkata, India
D. R. Bhattacharyya
Department of Theoretical Physics, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700 032, India

Abstract


A monthly monitoring programme conducted at two different sampling stations in and around the mangrove ecosystem of deltaic Sundarbans, India during January, 2000 to December, 2001 showed maximum phytopigment concentrations during premonsoon and minimum during monsoon seasons. Physico-chemical variables like surface water temperature, salinity, pH, dissolved oxygen, extinction coefficient and nutrients were also analysed simultaneously during the monitoring period The concentrations of chlorophyll a, b andc exhibited significant positive correlations with surface water salinity and pH, but with nutrients like nitrate, phosphate and silicate, significant negative relationships were observed in both the sampling stations. The low phytopigment concentrations at station I may be related to severe anthropogenic stress around this zone.

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No Keywords.

References