Asian Journal of Research in Chemistry

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Ecological Studies on the Distribution of Phyto Plankton Biomass, East Coast of India


Affiliations
1 Department of Chemistry, KL University, Guntur-522502, Andhra Pradesh, India
     

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During premonsoon season, the Bhavanapadu backwaters (BBW), was characterized by warm waters (av. 32.6 ± 0.6ºC) with relatively high salinity (>23; except in the lower estuary). On the other hand, fresh water was found to dominate the entire area during monsoon and postmonsoon seasons. The enormous input of nutrients (nitrate, phosphate and silicate) into the estuary from various sources (industries, agriculture and domestic) was responsible for the high phytoplankton biomass (av. 10.4 ± 10.1 mg m_3) irrespective of seasons. Hence, it is suggested that during the periods of fresh water dominance, the trophic food web of Bhavanapadu estuarine system is characterized by substantial amount of unconsumed carbon at primary level owing to the reduction in phytoplankton grazers (zooplankton).

Keywords

Mangrove, Bay of Bengal, Chlorophyll A, Salinity, Nutrients, Plankton
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  • Ferreira, J.G., Wolff, W.J., Simas, T.C., Bricker, S.B., Does biodiversity of estuarine phytoplankton depend on hydrology? Ecological Modeling 187: 513-523(2005)

  • Kathiresan: Mangrove Ecosystems. Available: http://ocw.unu.edu/international-network-on-water-environmentand- health/unu-inweh-course-1-mangroves/Distribution-ofmangroves. pdf, (2011).

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Abstract Views: 269

PDF Views: 2




  • Ecological Studies on the Distribution of Phyto Plankton Biomass, East Coast of India

Abstract Views: 269  |  PDF Views: 2

Authors

G.V. Krishna Mohan
Department of Chemistry, KL University, Guntur-522502, Andhra Pradesh, India

Abstract


During premonsoon season, the Bhavanapadu backwaters (BBW), was characterized by warm waters (av. 32.6 ± 0.6ºC) with relatively high salinity (>23; except in the lower estuary). On the other hand, fresh water was found to dominate the entire area during monsoon and postmonsoon seasons. The enormous input of nutrients (nitrate, phosphate and silicate) into the estuary from various sources (industries, agriculture and domestic) was responsible for the high phytoplankton biomass (av. 10.4 ± 10.1 mg m_3) irrespective of seasons. Hence, it is suggested that during the periods of fresh water dominance, the trophic food web of Bhavanapadu estuarine system is characterized by substantial amount of unconsumed carbon at primary level owing to the reduction in phytoplankton grazers (zooplankton).

Keywords


Mangrove, Bay of Bengal, Chlorophyll A, Salinity, Nutrients, Plankton

References